diff mbox series

rtl: add predicates for addition, subtraction & multiplication

Message ID 20221127021613.432881-1-softwaresale01@gmail.com
State New
Headers show
Series rtl: add predicates for addition, subtraction & multiplication | expand

Commit Message

Charlie Sale Nov. 27, 2022, 2:16 a.m. UTC
This is my first contribution to GCC :) one of the beginner projects
suggested on the website was to add and use RTL type predicates. I
added predicates for addition, subtraction and multiplication. I also
went through and used them in the code.

I did not add tests because I'm not addding/modifying any behavior.
All existings tests did pass.

Like I said, this is my first patch. Please let me know if I did
anything wrong or if there's anything I can improve for next time.

Signed-off-by: Charlie Sale <softwaresale01@gmail.com>
---
 gcc/ChangeLog            |  43 +++++++
 gcc/alias.cc             |  30 +++--
 gcc/auto-inc-dec.cc      |  11 +-
 gcc/calls.cc             |   8 +-
 gcc/cfgexpand.cc         |  16 +--
 gcc/combine-stack-adj.cc |  39 +++----
 gcc/combine.cc           | 241 +++++++++++++++++----------------------
 gcc/compare-elim.cc      |   3 +-
 gcc/cse.cc               |  66 +++++------
 gcc/cselib.cc            |  37 +++---
 gcc/dce.cc               |   4 +-
 gcc/dwarf2cfi.cc         |   2 +-
 gcc/dwarf2out.cc         |  11 +-
 gcc/emit-rtl.cc          |   6 +-
 gcc/explow.cc            |  31 ++---
 gcc/expr.cc              |  23 ++--
 gcc/final.cc             |  20 ++--
 gcc/function.cc          |   7 +-
 gcc/fwprop.cc            |   2 +-
 gcc/haifa-sched.cc       |  10 +-
 gcc/ifcvt.cc             |  11 +-
 gcc/ira.cc               |   6 +-
 gcc/loop-doloop.cc       |  70 ++++++------
 gcc/loop-iv.cc           |  21 +---
 gcc/lra-constraints.cc   |  34 +++---
 gcc/lra-eliminations.cc  |  25 ++--
 gcc/lra.cc               |   6 +-
 gcc/modulo-sched.cc      |   2 +-
 gcc/postreload.cc        |  25 ++--
 gcc/reginfo.cc           |  12 +-
 gcc/reload.cc            | 180 +++++++++++++----------------
 gcc/reload1.cc           |  85 ++++++--------
 gcc/reorg.cc             |  12 +-
 gcc/rtl.cc               |   3 +-
 gcc/rtl.h                |  11 ++
 gcc/rtlanal.cc           |  25 ++--
 gcc/sched-deps.cc        |   8 +-
 gcc/simplify-rtx.cc      | 143 +++++++++--------------
 gcc/var-tracking.cc      |  37 +++---
 39 files changed, 595 insertions(+), 731 deletions(-)

Comments

Xi Ruoyao Nov. 27, 2022, 9:03 a.m. UTC | #1
On Sat, 2022-11-26 at 21:16 -0500, Charlie Sale via Gcc-patches wrote:
> This is my first contribution to GCC :) one of the beginner projects
> suggested on the website was to add and use RTL type predicates. I
> added predicates for addition, subtraction and multiplication. I also
> went through and used them in the code.
> 
> I did not add tests because I'm not addding/modifying any behavior.
> All existings tests did pass.
> 
> Like I said, this is my first patch. Please let me know if I did
> anything wrong or if there's anything I can improve for next time.
> 
> Signed-off-by: Charlie Sale <softwaresale01@gmail.com>
> ---
>  gcc/ChangeLog            |  43 +++++++
>  gcc/alias.cc             |  30 +++--
>  gcc/auto-inc-dec.cc      |  11 +-
>  gcc/calls.cc             |   8 +-
>  gcc/cfgexpand.cc         |  16 +--
>  gcc/combine-stack-adj.cc |  39 +++----
>  gcc/combine.cc           | 241 +++++++++++++++++----------------------
>  gcc/compare-elim.cc      |   3 +-
>  gcc/cse.cc               |  66 +++++------
>  gcc/cselib.cc            |  37 +++---
>  gcc/dce.cc               |   4 +-
>  gcc/dwarf2cfi.cc         |   2 +-
>  gcc/dwarf2out.cc         |  11 +-
>  gcc/emit-rtl.cc          |   6 +-
>  gcc/explow.cc            |  31 ++---
>  gcc/expr.cc              |  23 ++--
>  gcc/final.cc             |  20 ++--
>  gcc/function.cc          |   7 +-
>  gcc/fwprop.cc            |   2 +-
>  gcc/haifa-sched.cc       |  10 +-
>  gcc/ifcvt.cc             |  11 +-
>  gcc/ira.cc               |   6 +-
>  gcc/loop-doloop.cc       |  70 ++++++------
>  gcc/loop-iv.cc           |  21 +---
>  gcc/lra-constraints.cc   |  34 +++---
>  gcc/lra-eliminations.cc  |  25 ++--
>  gcc/lra.cc               |   6 +-
>  gcc/modulo-sched.cc      |   2 +-
>  gcc/postreload.cc        |  25 ++--
>  gcc/reginfo.cc           |  12 +-
>  gcc/reload.cc            | 180 +++++++++++++----------------
>  gcc/reload1.cc           |  85 ++++++--------
>  gcc/reorg.cc             |  12 +-
>  gcc/rtl.cc               |   3 +-
>  gcc/rtl.h                |  11 ++
>  gcc/rtlanal.cc           |  25 ++--
>  gcc/sched-deps.cc        |   8 +-
>  gcc/simplify-rtx.cc      | 143 +++++++++--------------
>  gcc/var-tracking.cc      |  37 +++---
>  39 files changed, 595 insertions(+), 731 deletions(-)
> 
> diff --git a/gcc/ChangeLog b/gcc/ChangeLog

Do not edit this file.  It's automatically generated from Git commit
log.  Write the ChangeLog entries in the commit message instead.
 
/* snip */

> -             return simplify_gen_binary (GET_CODE (x), GET_MODE (x),
> -                                         op0, XEXP (x, 1));
> +             return simplify_gen_binary (GET_CODE (x), GET_MODE (x), op0,
> +                                         XEXP (x, 1));

Don't update things irrelevant to your topic stealthy.

/* snip */

> -                              && (t = get_reg_known_value (REGNO (XEXP (src, 0))))
> +                              && (t = get_reg_known_value (
> +                                    REGNO (XEXP (src, 0))))

Likewise.

/* snip */

> -             op0 = expand_debug_expr (TREE_OPERAND (TREE_OPERAND (exp, 0),
> -                                                    0));
> +             op0 = expand_debug_expr (TREE_OPERAND (TREE_OPERAND (exp, 0), 0));

Likewise.

/* snip */

> -         else if (dest == stack_pointer_rtx
> -                  && REG_P (src)
> +         else if (dest == stack_pointer_rtx && REG_P (src)

Likewise, and GCC has its own coding style which is not "what looks
better in your opinion".

I'll stop reading the patch here because it's too long and there is
already too much stealth changes.

Try to break the patch into a series of multiple small patches because
it's difficult to review a very large diff.

Do not randomly modify coding style.  Even if you have a good reason to
make style changes, you should submit them as a separate patch (or
separate patch series) because mixing style changes and real code
changes makes it difficult to review the code.
David Malcolm Nov. 27, 2022, 2:21 p.m. UTC | #2
On Sat, 2022-11-26 at 21:16 -0500, Charlie Sale via Gcc-patches wrote:
> This is my first contribution to GCC :) 

Thanks, and welcome to GCC development!

> one of the beginner projects
> suggested on the website was to add and use RTL type predicates. I
> added predicates for addition, subtraction and multiplication. I also
> went through and used them in the code.

Thanks.

We're currently in "stage 3" of GCC 13 development, which means that
we're focusing on bug-fixing, rather than cleanups and feature work. 
Though exceptions can be made for low-risk work, at the discretion of
the release managers; I've taken the liberty of CCing them.

Although I'm not an RTL expert, I briefly glanced through your patch
and it looks like you're on the right track with this (with some
caveats below).

> 
> I did not add tests because I'm not addding/modifying any behavior.
> All existings tests did pass.

We're sometimes a bit sloppy when we talk about the testing we do, it's
good to be precise about what build/host/target combination(s) a patch
is tested on.  I normally sign off my patches with something like:
  "Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu."
which is shorthand for:
  "I configured and built the compiler with the patch on x86_64-pc-
linux-gnu, with the full three-stage bootstrap, which succeeded, and
then ran the full test suite, which ran without regressions".

RTL is an aspect of the compiler that tends to have the most per-target
differences, so it's especially important to be precise about which
target(s) you built and tested on.

> 
> Like I said, this is my first patch. 

We're sometimes not as welcoming to newcomers as we could be, so please
bear with us.  Let me know if anything in this email is unclear.

> Please let me know if I did
> anything wrong or if there's anything I can improve for next time.

As noted in another reply, there are lots of places in the code where
the patch touches lines that it doesn't need to: generally formatting
and whitespace changes.

We have over 30 years of source history which we sometimes need to look
back on, and RTL is some of the oldest code in the compiler, so we want
to minimize "churn" to keep tools like "git blame" useful.

For v2 of the patch, please go through it line-by-line (perhaps using
"git add -p") to make sure that the patch is only making the minimum
changes it needs to to make use of the new type predicates.

I notice that the patch only touches the "gcc" subdirectory itself, and
not any subdirectories.  There's lots more per-target RTL code in the
various gcc/config/* subdirectories.  I don't know if the you want to
restrict the scope of the patch to just the shared gcc subdirectory, or
be more ambitious and also tackle the per-target code, but the latter
involves lots more build directories to make sure that the code still
builds on every target configuration.

As noted in another reply, we put the ChangeLog additions in the text
of the email, rather than inline as part of the patch itself (doing the
latter used to be a constant source of annoying conflicts when applying
patches).  There's a script:
  ./contrib/gcc-changelog/git_check_commit.py
which you can run to verify that our server-side git hooks will be able
to cope with the cover text.

Hope this is constructive, and welcome, again!
Dave

> 
> Signed-off-by: Charlie Sale <softwaresale01@gmail.com>
> ---
>  gcc/ChangeLog            |  43 +++++++
>  gcc/alias.cc             |  30 +++--
>  gcc/auto-inc-dec.cc      |  11 +-
>  gcc/calls.cc             |   8 +-
>  gcc/cfgexpand.cc         |  16 +--
>  gcc/combine-stack-adj.cc |  39 +++----
>  gcc/combine.cc           | 241 +++++++++++++++++--------------------
> --
>  gcc/compare-elim.cc      |   3 +-
>  gcc/cse.cc               |  66 +++++------
>  gcc/cselib.cc            |  37 +++---
>  gcc/dce.cc               |   4 +-
>  gcc/dwarf2cfi.cc         |   2 +-
>  gcc/dwarf2out.cc         |  11 +-
>  gcc/emit-rtl.cc          |   6 +-
>  gcc/explow.cc            |  31 ++---
>  gcc/expr.cc              |  23 ++--
>  gcc/final.cc             |  20 ++--
>  gcc/function.cc          |   7 +-
>  gcc/fwprop.cc            |   2 +-
>  gcc/haifa-sched.cc       |  10 +-
>  gcc/ifcvt.cc             |  11 +-
>  gcc/ira.cc               |   6 +-
>  gcc/loop-doloop.cc       |  70 ++++++------
>  gcc/loop-iv.cc           |  21 +---
>  gcc/lra-constraints.cc   |  34 +++---
>  gcc/lra-eliminations.cc  |  25 ++--
>  gcc/lra.cc               |   6 +-
>  gcc/modulo-sched.cc      |   2 +-
>  gcc/postreload.cc        |  25 ++--
>  gcc/reginfo.cc           |  12 +-
>  gcc/reload.cc            | 180 +++++++++++++----------------
>  gcc/reload1.cc           |  85 ++++++--------
>  gcc/reorg.cc             |  12 +-
>  gcc/rtl.cc               |   3 +-
>  gcc/rtl.h                |  11 ++
>  gcc/rtlanal.cc           |  25 ++--
>  gcc/sched-deps.cc        |   8 +-
>  gcc/simplify-rtx.cc      | 143 +++++++++--------------
>  gcc/var-tracking.cc      |  37 +++---
>  39 files changed, 595 insertions(+), 731 deletions(-)
> 
> diff --git a/gcc/ChangeLog b/gcc/ChangeLog
> index f999e2cba43..1fd2c94c873 100644
> --- a/gcc/ChangeLog
> +++ b/gcc/ChangeLog
> @@ -1,3 +1,46 @@
> +2022-11-26  Charlie Sale   <softwaresale01@gmail.com>
> +
> +       * rtl.h (PLUS_P): RTL addition predicate
> +       (MINUS_P): RTL subtraction predicate
> +       (MULT_P): RTL multiplication predicate
> +       * alias.cc: use RTL predicates
> +       * auto-inc-dec.cc: use RTL predicates
> +       * calls.cc: use RTL predicates
> +       * cfgexpand.cc: use RTL predicates
> +       * combine-stack-adj.cc: use RTL predicates
> +       * combine.cc: use RTL predicates
> +       * compare-elim.cc: use RTL predicates
> +       * cse.cc: use RTL predicates
> +       * cselib.cc: use RTL predicates
> +       * dce.cc: use RTL predicates
> +       * dwarf2cfi.cc: use RTL predicates
> +       * dwarf2out.cc: use RTL predicates
> +       * emit-rtl.cc: use RTL predicates
> +       * explow.cc: use RTL predicates
> +       * expr.cc: use RTL predicates
> +       * final.cc: use RTL predicates
> +       * function.cc: use RTL predicates
> +       * fwprop.cc: use RTL predicates
> +       * haifa-sched.cc: use RTL predicates
> +       * ifcvt.cc: use RTL predicates
> +       * ira.cc: use RTL predicates
> +       * loop-doloop.cc: use RTL predicates
> +       * loop-iv.cc: use RTL predicates
> +       * lra-constraints.cc: use RTL predicates
> +       * lra-eliminations.cc: use RTL predicates
> +       * lra.cc: use RTL predicates
> +       * modulo-sched.cc: use RTL predicates
> +       * postreload.cc: use RTL predicates
> +       * reginfo.cc: use RTL predicates
> +       * reload.cc: use RTL predicates
> +       * reload1.cc: use RTL predicates
> +       * reorg.cc: use RTL predicates
> +       * rtl.cc: use RTL predicates
> +       * rtlanal.cc: use RTL predicates
> +       * sched-deps.cc: use RTL predicates
> +       * simplify-rtx.cc: use RTL predicates
> +       * var-tracking.cc: use RTL predicates
> +
>  2022-11-25  Sandra Loosemore  <sandra@codesourcery.com>
>  
>         * common.opt (fopenmp-target-simd-clone): New option.
> diff --git a/gcc/alias.cc b/gcc/alias.cc
> index c62837dd854..2d9bd79fe21 100644
> --- a/gcc/alias.cc
> +++ b/gcc/alias.cc
> @@ -1473,7 +1473,7 @@ find_base_value (rtx src)
>          otherwise.  */
>        if (copying_arguments
>           && (XEXP (src, 0) == arg_pointer_rtx
> -             || (GET_CODE (XEXP (src, 0)) == PLUS
> +             || (PLUS_P (XEXP (src, 0))
>                   && XEXP (XEXP (src, 0), 0) == arg_pointer_rtx)))
>         return arg_base_value;
>        return 0;
> @@ -1790,7 +1790,7 @@ canon_rtx (rtx x)
>         return canon_rtx (t);
>      }
>  
> -  if (GET_CODE (x) == PLUS)
> +  if (PLUS_P (x))
>      {
>        rtx x0 = canon_rtx (XEXP (x, 0));
>        rtx x1 = canon_rtx (XEXP (x, 1));
> @@ -2357,19 +2357,17 @@ get_addr (rtx x)
>  
>    if (GET_CODE (x) != VALUE)
>      {
> -      if ((GET_CODE (x) == PLUS || GET_CODE (x) == MINUS)
> -         && GET_CODE (XEXP (x, 0)) == VALUE
> +      if ((PLUS_P (x) || MINUS_P (x)) && GET_CODE (XEXP (x, 0)) ==
> VALUE
>           && CONST_SCALAR_INT_P (XEXP (x, 1)))
>         {
>           rtx op0 = get_addr (XEXP (x, 0));
>           if (op0 != XEXP (x, 0))
>             {
>               poly_int64 c;
> -             if (GET_CODE (x) == PLUS
> -                 && poly_int_rtx_p (XEXP (x, 1), &c))
> +             if (PLUS_P (x) && poly_int_rtx_p (XEXP (x, 1), &c))
>                 return plus_constant (GET_MODE (x), op0, c);
> -             return simplify_gen_binary (GET_CODE (x), GET_MODE (x),
> -                                         op0, XEXP (x, 1));
> +             return simplify_gen_binary (GET_CODE (x), GET_MODE (x),
> op0,
> +                                         XEXP (x, 1));
>             }
>         }
>        return x;
> @@ -2570,7 +2568,7 @@ memrefs_conflict_p (poly_int64 xsize, rtx x,
> poly_int64 ysize, rtx y,
>    /* This code used to check for conflicts involving stack
> references and
>       globals but the base address alias code now handles these
> cases.  */
>  
> -  if (GET_CODE (x) == PLUS)
> +  if (PLUS_P (x))
>      {
>        /* The fact that X is canonicalized means that this
>          PLUS rtx is canonicalized.  */
> @@ -2585,7 +2583,7 @@ memrefs_conflict_p (poly_int64 xsize, rtx x,
> poly_int64 ysize, rtx y,
>         return memrefs_conflict_p (xsize, x0, ysize, const0_rtx, c);
>  
>        poly_int64 cx1, cy1;
> -      if (GET_CODE (y) == PLUS)
> +      if (PLUS_P (y))
>         {
>           /* The fact that Y is canonicalized means that this
>              PLUS rtx is canonicalized.  */
> @@ -2617,7 +2615,7 @@ memrefs_conflict_p (poly_int64 xsize, rtx x,
> poly_int64 ysize, rtx y,
>        else if (poly_int_rtx_p (x1, &cx1))
>         return memrefs_conflict_p (xsize, x0, ysize, y, c - cx1);
>      }
> -  else if (GET_CODE (y) == PLUS)
> +  else if (PLUS_P (y))
>      {
>        /* The fact that Y is canonicalized means that this
>          PLUS rtx is canonicalized.  */
> @@ -3506,13 +3504,13 @@ init_alias_analysis (void)
>                                                         XEXP (note,
> 0)))
>                         {
>                           set_reg_known_value (regno, XEXP (note,
> 0));
> -                         set_reg_known_equiv_p (regno,
> -                                                REG_NOTE_KIND (note)
> == REG_EQUIV);
> +                         set_reg_known_equiv_p (regno, REG_NOTE_KIND
> (note)
> +                                                         ==
> REG_EQUIV);
>                         }
> -                     else if (DF_REG_DEF_COUNT (regno) == 1
> -                              && GET_CODE (src) == PLUS
> +                     else if (DF_REG_DEF_COUNT (regno) == 1 &&
> PLUS_P (src)
>                                && REG_P (XEXP (src, 0))
> -                              && (t = get_reg_known_value (REGNO
> (XEXP (src, 0))))
> +                              && (t = get_reg_known_value (
> +                                    REGNO (XEXP (src, 0))))
>                                && poly_int_rtx_p (XEXP (src, 1),
> &offset))
>                         {
>                           t = plus_constant (GET_MODE (src), t,
> offset);
> diff --git a/gcc/auto-inc-dec.cc b/gcc/auto-inc-dec.cc
> index 481e7af6895..d4ca5d8954f 100644
> --- a/gcc/auto-inc-dec.cc
> +++ b/gcc/auto-inc-dec.cc
> @@ -882,7 +882,7 @@ parse_add_or_inc (rtx_insn *insn, bool
> before_mem)
>      {
>        /* Process a = b + c where c is a const.  */
>        inc_insn.reg1_is_const = true;
> -      if (GET_CODE (SET_SRC (pat)) == PLUS)
> +      if (PLUS_P (SET_SRC (pat)))
>         {
>           inc_insn.reg1 = XEXP (SET_SRC (pat), 1);
>           inc_insn.reg1_val = INTVAL (inc_insn.reg1);
> @@ -895,8 +895,7 @@ parse_add_or_inc (rtx_insn *insn, bool
> before_mem)
>        return true;
>      }
>    else if ((HAVE_PRE_MODIFY_REG || HAVE_POST_MODIFY_REG)
> -          && (REG_P (XEXP (SET_SRC (pat), 1)))
> -          && GET_CODE (SET_SRC (pat)) == PLUS)
> +          && (REG_P (XEXP (SET_SRC (pat), 1))) && PLUS_P (SET_SRC
> (pat)))
>      {
>        /* Process a = b + c where c is a reg.  */
>        inc_insn.reg1 = XEXP (SET_SRC (pat), 1);
> @@ -964,8 +963,7 @@ find_address (rtx *address_of_x, rtx findreg)
>        mem_insn.reg1 = GEN_INT (mem_insn.reg1_val);
>        return -1;
>      }
> -  if (code == MEM && findreg == inc_insn.reg_res
> -      && GET_CODE (XEXP (x, 0)) == PLUS
> +  if (code == MEM && findreg == inc_insn.reg_res && PLUS_P (XEXP (x,
> 0))
>        && rtx_equal_p (XEXP (XEXP (x, 0), 0), inc_insn.reg_res))
>      {
>        rtx b = XEXP (XEXP (x, 0), 1);
> @@ -1357,8 +1355,7 @@ find_mem (rtx *address_of_x)
>        if (find_inc (true))
>         return true;
>      }
> -  if (code == MEM && GET_CODE (XEXP (x, 0)) == PLUS
> -      && REG_P (XEXP (XEXP (x, 0), 0)))
> +  if (code == MEM && PLUS_P (XEXP (x, 0)) && REG_P (XEXP (XEXP (x,
> 0), 0)))
>      {
>        rtx reg1 = XEXP (XEXP (x, 0), 1);
>        mem_insn.mem_loc = address_of_x;
> diff --git a/gcc/calls.cc b/gcc/calls.cc
> index 6dd6f73e978..1c00f47c8dd 100644
> --- a/gcc/calls.cc
> +++ b/gcc/calls.cc
> @@ -1782,7 +1782,7 @@ compute_argument_addresses (struct arg_data
> *args, rtx argblock, int num_actuals
>        int i;
>        poly_int64 arg_offset = 0;
>  
> -      if (GET_CODE (argblock) == PLUS)
> +      if (PLUS_P (argblock))
>         {
>           arg_reg = XEXP (argblock, 0);
>           arg_offset = rtx_to_poly_int64 (XEXP (argblock, 1));
> @@ -1991,7 +1991,7 @@ internal_arg_pointer_based_exp (const_rtx rtl,
> bool toplevel)
>      return NULL_RTX;
>  
>    poly_int64 offset;
> -  if (GET_CODE (rtl) == PLUS && poly_int_rtx_p (XEXP (rtl, 1),
> &offset))
> +  if (PLUS_P (rtl) && poly_int_rtx_p (XEXP (rtl, 1), &offset))
>      {
>        rtx val = internal_arg_pointer_based_exp (XEXP (rtl, 0),
> toplevel);
>        if (val == NULL_RTX || val == pc_rtx)
> @@ -4900,7 +4900,7 @@ store_one_arg (struct arg_data *arg, rtx
> argblock, int flags,
>             {
>               /* stack_slot is negative, but we want to index
> stack_usage_map
>                  with positive values.  */
> -             if (GET_CODE (XEXP (arg->stack_slot, 0)) == PLUS)
> +             if (PLUS_P (XEXP (arg->stack_slot, 0)))
>                 {
>                   rtx offset = XEXP (XEXP (arg->stack_slot, 0), 1);
>                   upper_bound = -rtx_to_poly_int64 (offset) + 1;
> @@ -4912,7 +4912,7 @@ store_one_arg (struct arg_data *arg, rtx
> argblock, int flags,
>             }
>           else
>             {
> -             if (GET_CODE (XEXP (arg->stack_slot, 0)) == PLUS)
> +             if (PLUS_P (XEXP (arg->stack_slot, 0)))
>                 {
>                   rtx offset = XEXP (XEXP (arg->stack_slot, 0), 1);
>                   lower_bound = rtx_to_poly_int64 (offset);
> diff --git a/gcc/cfgexpand.cc b/gcc/cfgexpand.cc
> index dd29ffffc03..e839f30378d 100644
> --- a/gcc/cfgexpand.cc
> +++ b/gcc/cfgexpand.cc
> @@ -4277,8 +4277,7 @@ convert_debug_memory_address (scalar_int_mode
> mode, rtx x,
>         case SUBREG:
>           if ((SUBREG_PROMOTED_VAR_P (x)
>                || (REG_P (SUBREG_REG (x)) && REG_POINTER (SUBREG_REG
> (x)))
> -              || (GET_CODE (SUBREG_REG (x)) == PLUS
> -                  && REG_P (XEXP (SUBREG_REG (x), 0))
> +              || (PLUS_P (SUBREG_REG (x)) && REG_P (XEXP (SUBREG_REG
> (x), 0))
>                    && REG_POINTER (XEXP (SUBREG_REG (x), 0))
>                    && CONST_INT_P (XEXP (SUBREG_REG (x), 1))))
>               && GET_MODE (SUBREG_REG (x)) == mode)
> @@ -4398,12 +4397,10 @@ expand_debug_parm_decl (tree decl)
>        return rtl;
>      }
>  
> -  if (incoming
> -      && GET_MODE (incoming) != BLKmode
> -      && !TREE_ADDRESSABLE (decl)
> +  if (incoming && GET_MODE (incoming) != BLKmode &&
> !TREE_ADDRESSABLE (decl)
>        && MEM_P (incoming)
>        && (XEXP (incoming, 0) == virtual_incoming_args_rtx
> -         || (GET_CODE (XEXP (incoming, 0)) == PLUS
> +         || (PLUS_P (XEXP (incoming, 0))
>               && XEXP (XEXP (incoming, 0), 0) ==
> virtual_incoming_args_rtx
>               && CONST_INT_P (XEXP (XEXP (incoming, 0), 1)))))
>      return copy_rtx (incoming);
> @@ -4687,7 +4684,7 @@ expand_debug_expr (tree exp)
>        if (TREE_CODE (exp) == MEM_REF)
>         {
>           if (GET_CODE (op0) == DEBUG_IMPLICIT_PTR
> -             || (GET_CODE (op0) == PLUS
> +             || (PLUS_P (op0)
>                   && GET_CODE (XEXP (op0, 0)) == DEBUG_IMPLICIT_PTR))
>             /* (mem (debug_implicit_ptr)) might confuse aliasing.
>                Instead just use get_inner_reference.  */
> @@ -5204,11 +5201,10 @@ expand_debug_expr (tree exp)
>               && TREE_CODE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0))
>                  == ADDR_EXPR)
>             {
> -             op0 = expand_debug_expr (TREE_OPERAND (TREE_OPERAND
> (exp, 0),
> -                                                    0));
> +             op0 = expand_debug_expr (TREE_OPERAND (TREE_OPERAND
> (exp, 0), 0));
>               if (op0 != NULL
>                   && (GET_CODE (op0) == DEBUG_IMPLICIT_PTR
> -                     || (GET_CODE (op0) == PLUS
> +                     || (PLUS_P (op0)
>                           && GET_CODE (XEXP (op0, 0)) ==
> DEBUG_IMPLICIT_PTR
>                           && CONST_INT_P (XEXP (op0, 1)))))
>                 {
> diff --git a/gcc/combine-stack-adj.cc b/gcc/combine-stack-adj.cc
> index e76d60a8f7e..ce3276513eb 100644
> --- a/gcc/combine-stack-adj.cc
> +++ b/gcc/combine-stack-adj.cc
> @@ -101,8 +101,7 @@ stack_memref_p (rtx x)
>  
>    if (x == stack_pointer_rtx)
>      return 1;
> -  if (GET_CODE (x) == PLUS
> -      && XEXP (x, 0) == stack_pointer_rtx
> +  if (PLUS_P (x) && XEXP (x, 0) == stack_pointer_rtx
>        && CONST_INT_P (XEXP (x, 1)))
>      return 1;
>  
> @@ -570,18 +569,16 @@ combine_stack_adjustments_for_block
> (basic_block bb, bitmap live)
>           HOST_WIDE_INT this_adjust = 0;
>  
>           /* Find constant additions to the stack pointer.  */
> -         if (dest == stack_pointer_rtx
> -             && GET_CODE (src) == PLUS
> +         if (dest == stack_pointer_rtx && PLUS_P (src)
>               && XEXP (src, 0) == stack_pointer_rtx
>               && CONST_INT_P (XEXP (src, 1)))
>             this_adjust = INTVAL (XEXP (src, 1));
>           /* Or such additions turned by postreload into a store of
>              equivalent register.  */
> -         else if (dest == stack_pointer_rtx
> -                  && REG_P (src)
> +         else if (dest == stack_pointer_rtx && REG_P (src)
>                    && REGNO (src) != STACK_POINTER_REGNUM)
>             if (rtx equal = find_reg_note (insn, REG_EQUAL,
> NULL_RTX))
> -             if (GET_CODE (XEXP (equal, 0)) == PLUS
> +             if (PLUS_P (XEXP (equal, 0))
>                   && XEXP (XEXP (equal, 0), 0) == stack_pointer_rtx
>                   && CONST_INT_P (XEXP (XEXP (equal, 0), 1)))
>                 this_adjust = INTVAL (XEXP (XEXP (equal, 0), 1));
> @@ -713,27 +710,25 @@ combine_stack_adjustments_for_block
> (basic_block bb, bitmap live)
>              be an allocation.  */
>           if (MEM_P (dest)
>               && ((STACK_GROWS_DOWNWARD
> -                  ? (GET_CODE (XEXP (dest, 0)) == PRE_DEC
> -                     && known_eq (last_sp_adjust,
> -                                  GET_MODE_SIZE (GET_MODE (dest))))
> -                  : (GET_CODE (XEXP (dest, 0)) == PRE_INC
> -                     && known_eq (-last_sp_adjust,
> -                                  GET_MODE_SIZE (GET_MODE (dest)))))
> -                 || ((STACK_GROWS_DOWNWARD
> -                      ? last_sp_adjust >= 0 : last_sp_adjust <= 0)
> +                    ? (GET_CODE (XEXP (dest, 0)) == PRE_DEC
> +                       && known_eq (last_sp_adjust,
> +                                    GET_MODE_SIZE (GET_MODE
> (dest))))
> +                    : (GET_CODE (XEXP (dest, 0)) == PRE_INC
> +                       && known_eq (-last_sp_adjust,
> +                                    GET_MODE_SIZE (GET_MODE
> (dest)))))
> +                 || ((STACK_GROWS_DOWNWARD ? last_sp_adjust >= 0
> +                                           : last_sp_adjust <= 0)
>                       && GET_CODE (XEXP (dest, 0)) == PRE_MODIFY
> -                     && GET_CODE (XEXP (XEXP (dest, 0), 1)) == PLUS
> -                     && XEXP (XEXP (XEXP (dest, 0), 1), 0)
> -                        == stack_pointer_rtx
> +                     && PLUS_P (XEXP (XEXP (dest, 0), 1))
> +                     && XEXP (XEXP (XEXP (dest, 0), 1), 0) ==
> stack_pointer_rtx
>                       && GET_CODE (XEXP (XEXP (XEXP (dest, 0), 1),
> 1))
> -                        == CONST_INT
> +                          == CONST_INT
>                       && INTVAL (XEXP (XEXP (XEXP (dest, 0), 1), 1))
> -                        == -last_sp_adjust))
> +                          == -last_sp_adjust))
>               && XEXP (XEXP (dest, 0), 0) == stack_pointer_rtx
>               && !reg_mentioned_p (stack_pointer_rtx, src)
>               && memory_address_p (GET_MODE (dest),
> stack_pointer_rtx)
> -             && try_apply_stack_adjustment (insn, reflist, 0,
> -                                            -last_sp_adjust,
> +             && try_apply_stack_adjustment (insn, reflist, 0, -
> last_sp_adjust,
>                                              NULL, NULL))
>             {
>               if (last2_sp_set)
> diff --git a/gcc/combine.cc b/gcc/combine.cc
> index a5fabf397f7..d63455efd1f 100644
> --- a/gcc/combine.cc
> +++ b/gcc/combine.cc
> @@ -3016,19 +3016,17 @@ try_combine (rtx_insn *i3, rtx_insn *i2,
> rtx_insn *i1, rtx_insn *i0,
>    /* See if any of the insns is a MULT operation.  Unless one is, we
> will
>       reject a combination that is, since it must be slower.  Be
> conservative
>       here.  */
> -  if (GET_CODE (i2src) == MULT
> -      || (i1 != 0 && GET_CODE (i1src) == MULT)
> -      || (i0 != 0 && GET_CODE (i0src) == MULT)
> -      || (GET_CODE (PATTERN (i3)) == SET
> -         && GET_CODE (SET_SRC (PATTERN (i3))) == MULT))
> +  if (MULT_P (i2src) || (i1 != 0 && MULT_P (i1src))
> +      || (i0 != 0 && MULT_P (i0src))
> +      || (GET_CODE (PATTERN (i3)) == SET && MULT_P (SET_SRC (PATTERN
> (i3)))))
>      have_mult = 1;
>  
> -  /* If I3 has an inc, then give up if I1 or I2 uses the reg that is
> inc'd.
> -     We used to do this EXCEPT in one case: I3 has a post-inc in an
> -     output operand.  However, that exception can give rise to insns
> like
> -       mov r3,(r3)+
> -     which is a famous insn on the PDP-11 where the value of r3 used
> as the
> -     source was model-dependent.  Avoid this sort of thing.  */
> +    /* If I3 has an inc, then give up if I1 or I2 uses the reg that
> is inc'd.
> +       We used to do this EXCEPT in one case: I3 has a post-inc in
> an
> +       output operand.  However, that exception can give rise to
> insns like
> +         mov r3,(r3)+
> +       which is a famous insn on the PDP-11 where the value of r3
> used as the
> +       source was model-dependent.  Avoid this sort of thing.  */
>  
>  #if 0
>    if (!(GET_CODE (PATTERN (i3)) == SET
> @@ -3383,15 +3381,12 @@ try_combine (rtx_insn *i3, rtx_insn *i2,
> rtx_insn *i1, rtx_insn *i0,
>  
>    /* Fail if an autoincrement side-effect has been duplicated.  Be
> careful
>       to count all the ways that I2SRC and I1SRC can be used.  */
> -  if ((FIND_REG_INC_NOTE (i2, NULL_RTX) != 0
> -       && i2_is_used + added_sets_2 > 1)
> +  if ((FIND_REG_INC_NOTE (i2, NULL_RTX) != 0 && i2_is_used +
> added_sets_2 > 1)
>        || (i1 != 0 && FIND_REG_INC_NOTE (i1, NULL_RTX) != 0
> -         && (i1_is_used + added_sets_1 + (added_sets_2 &&
> i1_feeds_i2_n)
> -             > 1))
> +         && (i1_is_used + added_sets_1 + (added_sets_2 &&
> i1_feeds_i2_n) > 1))
>        || (i0 != 0 && FIND_REG_INC_NOTE (i0, NULL_RTX) != 0
> -         && (n_occurrences + added_sets_0
> -             + (added_sets_1 && i0_feeds_i1_n)
> -             + (added_sets_2 && i0_feeds_i2_n)
> +         && (n_occurrences + added_sets_0 + (added_sets_1 &&
> i0_feeds_i1_n)
> +               + (added_sets_2 && i0_feeds_i2_n)
>               > 1))
>        /* Fail if we tried to make a new register.  */
>        || max_reg_num () != maxreg
> @@ -3399,8 +3394,8 @@ try_combine (rtx_insn *i3, rtx_insn *i2,
> rtx_insn *i1, rtx_insn *i0,
>        || GET_CODE (newpat) == CLOBBER
>        /* Fail if this new pattern is a MULT and we didn't have one
> before
>          at the outer level.  */
> -      || (GET_CODE (newpat) == SET && GET_CODE (SET_SRC (newpat)) ==
> MULT
> -         && ! have_mult))
> +      || GET_CODE (newpat) == SET
> +          && MULT_P (GET_CODE (SET_SRC (newpat)) && !have_mult))
>      {
>        undo_all ();
>        return 0;
> @@ -3766,8 +3761,7 @@ try_combine (rtx_insn *i3, rtx_insn *i2,
> rtx_insn *i1, rtx_insn *i0,
>             }
>  
>           /* Similarly for (plus (mult FOO (const_int pow2))).  */
> -         if (split_code == PLUS
> -             && GET_CODE (XEXP (*split, 0)) == MULT
> +         if (split_code == PLUS && MULT_P (XEXP (*split, 0))
>               && CONST_INT_P (XEXP (XEXP (*split, 0), 1))
>               && INTVAL (XEXP (XEXP (*split, 0), 1)) > 0
>               && (i = exact_log2 (UINTVAL (XEXP (XEXP (*split, 0),
> 1)))) >= 0)
> @@ -4880,14 +4874,13 @@ find_split_point (rtx *loc, rtx_insn *insn,
> bool set_src)
>          the machine-specific way to split large constants.  We use
>          the first pseudo-reg (one of the virtual regs) as a
> placeholder;
>          it will not remain in the result.  */
> -      if (GET_CODE (XEXP (x, 0)) == PLUS
> -         && CONST_INT_P (XEXP (XEXP (x, 0), 1))
> -         && ! memory_address_addr_space_p (GET_MODE (x), XEXP (x,
> 0),
> -                                           MEM_ADDR_SPACE (x)))
> +      if (PLUS_P (XEXP (x, 0)) && CONST_INT_P (XEXP (XEXP (x, 0),
> 1))
> +         && !memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
> +                                          MEM_ADDR_SPACE (x)))
>         {
>           rtx reg = regno_reg_rtx[FIRST_PSEUDO_REGISTER];
> -         rtx_insn *seq = combine_split_insns (gen_rtx_SET (reg, XEXP
> (x, 0)),
> -                                              subst_insn);
> +         rtx_insn *seq
> +           = combine_split_insns (gen_rtx_SET (reg, XEXP (x, 0)),
> subst_insn);
>  
>           /* This should have produced two insns, each of which sets
> our
>              placeholder.  If the source of the second is a valid
> address,
> @@ -4935,12 +4928,11 @@ find_split_point (rtx *loc, rtx_insn *insn,
> bool set_src)
>           /* If that didn't work and we have a nested plus, like:
>              ((REG1 * CONST1) + REG2) + CONST2 and (REG1 + REG2) +
> CONST2
>              is valid address, try to split (REG1 * CONST1).  */
> -         if (GET_CODE (XEXP (XEXP (x, 0), 0)) == PLUS
> +         if (PLUS_P (XEXP (XEXP (x, 0), 0))
>               && !OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 0))
>               && OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 1))
> -             && ! (GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 0)) ==
> SUBREG
> -                   && OBJECT_P (SUBREG_REG (XEXP (XEXP (XEXP (x, 0),
> -                                                        0), 0)))))
> +             && !(GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 0)) ==
> SUBREG
> +                  && OBJECT_P (SUBREG_REG (XEXP (XEXP (XEXP (x, 0),
> 0), 0)))))
>             {
>               rtx tem = XEXP (XEXP (XEXP (x, 0), 0), 0);
>               XEXP (XEXP (XEXP (x, 0), 0), 0) = reg;
> @@ -4952,12 +4944,12 @@ find_split_point (rtx *loc, rtx_insn *insn,
> bool set_src)
>                 }
>               XEXP (XEXP (XEXP (x, 0), 0), 0) = tem;
>             }
> -         else if (GET_CODE (XEXP (XEXP (x, 0), 0)) == PLUS
> +         else if (PLUS_P (XEXP (XEXP (x, 0), 0))
>                    && OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 0))
>                    && !OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 1))
> -                  && ! (GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 1))
> == SUBREG
> -                        && OBJECT_P (SUBREG_REG (XEXP (XEXP (XEXP
> (x, 0),
> -                                                             0),
> 1)))))
> +                  && !(GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 1)) ==
> SUBREG
> +                       && OBJECT_P (
> +                         SUBREG_REG (XEXP (XEXP (XEXP (x, 0), 0),
> 1)))))
>             {
>               rtx tem = XEXP (XEXP (XEXP (x, 0), 0), 1);
>               XEXP (XEXP (XEXP (x, 0), 0), 1) = reg;
> @@ -4982,13 +4974,13 @@ find_split_point (rtx *loc, rtx_insn *insn,
> bool set_src)
>  
>        /* If we have a PLUS whose first operand is complex, try
> computing it
>           separately by making a split there.  */
> -      if (GET_CODE (XEXP (x, 0)) == PLUS
> -          && ! memory_address_addr_space_p (GET_MODE (x), XEXP (x,
> 0),
> -                                           MEM_ADDR_SPACE (x))
> -          && ! OBJECT_P (XEXP (XEXP (x, 0), 0))
> -          && ! (GET_CODE (XEXP (XEXP (x, 0), 0)) == SUBREG
> -                && OBJECT_P (SUBREG_REG (XEXP (XEXP (x, 0), 0)))))
> -        return &XEXP (XEXP (x, 0), 0);
> +      if (PLUS_P (XEXP (x, 0))
> +         && !memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
> +                                          MEM_ADDR_SPACE (x))
> +         && !OBJECT_P (XEXP (XEXP (x, 0), 0))
> +         && !(GET_CODE (XEXP (XEXP (x, 0), 0)) == SUBREG
> +              && OBJECT_P (SUBREG_REG (XEXP (XEXP (x, 0), 0)))))
> +       return &XEXP (XEXP (x, 0), 0);
>        break;
>  
>      case SET:
> @@ -5239,7 +5231,7 @@ find_split_point (rtx *loc, rtx_insn *insn,
> bool set_src)
>        /* Canonicalization can produce (minus A (mult B C)), where C
> is a
>          constant.  It may be better to try splitting (plus (mult B -
> C) A)
>          instead if this isn't a multiply by a power of two.  */
> -      if (set_src && code == MINUS && GET_CODE (XEXP (x, 1)) == MULT
> +      if (set_src && code == MINUS && MULT_P (XEXP (x, 1))
>           && GET_CODE (XEXP (XEXP (x, 1), 1)) == CONST_INT
>           && !pow2p_hwi (INTVAL (XEXP (XEXP (x, 1), 1))))
>         {
> @@ -5259,10 +5251,10 @@ find_split_point (rtx *loc, rtx_insn *insn,
> bool set_src)
>           the SET_SRC, we likely do not have such an instruction and
> it's
>           worthless to try this split.  */
>        if (!set_src
> -         && (GET_CODE (XEXP (x, 0)) == MULT
> +         && (MULT_P (XEXP (x, 0))
>               || (GET_CODE (XEXP (x, 0)) == ASHIFT
>                   && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT)))
> -        return loc;
> +       return loc;
>  
>      default:
>        break;
> @@ -6092,7 +6084,7 @@ combine_simplify_rtx (rtx x, machine_mode
> op0_mode, int in_dest,
>          the inverse distributive law to see if things simplify. 
> This
>          occurs mostly in addresses, often when unrolling loops.  */
>  
> -      if (GET_CODE (XEXP (x, 0)) == PLUS)
> +      if (PLUS_P (XEXP (x, 0)))
>         {
>           rtx result = distribute_and_simplify_rtx (x, 0);
>           if (result)
> @@ -6584,23 +6576,20 @@ simplify_if_then_else (rtx x)
>        scalar_int_mode m = int_mode;
>        rtx z = 0, c1 = NULL_RTX;
>  
> -      if ((GET_CODE (t) == PLUS || GET_CODE (t) == MINUS
> -          || GET_CODE (t) == IOR || GET_CODE (t) == XOR
> -          || GET_CODE (t) == ASHIFT
> +      if ((PLUS_P (t) || MINUS_P (t) || GET_CODE (t) == IOR
> +          || GET_CODE (t) == XOR || GET_CODE (t) == ASHIFT
>            || GET_CODE (t) == LSHIFTRT || GET_CODE (t) == ASHIFTRT)
>           && rtx_equal_p (XEXP (t, 0), f))
>         c1 = XEXP (t, 1), op = GET_CODE (t), z = f;
>  
>        /* If an identity-zero op is commutative, check whether there
>          would be a match if we swapped the operands.  */
> -      else if ((GET_CODE (t) == PLUS || GET_CODE (t) == IOR
> -               || GET_CODE (t) == XOR)
> +      else if ((PLUS_P (t) || GET_CODE (t) == IOR || GET_CODE (t) ==
> XOR)
>                && rtx_equal_p (XEXP (t, 1), f))
>         c1 = XEXP (t, 0), op = GET_CODE (t), z = f;
>        else if (GET_CODE (t) == SIGN_EXTEND
> -              && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> -              && (GET_CODE (XEXP (t, 0)) == PLUS
> -                  || GET_CODE (XEXP (t, 0)) == MINUS
> +              && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> +              && (PLUS_P (XEXP (t, 0)) || MINUS_P (XEXP (t, 0))
>                    || GET_CODE (XEXP (t, 0)) == IOR
>                    || GET_CODE (XEXP (t, 0)) == XOR
>                    || GET_CODE (XEXP (t, 0)) == ASHIFT
> @@ -6610,35 +6599,31 @@ simplify_if_then_else (rtx x)
>                && subreg_lowpart_p (XEXP (XEXP (t, 0), 0))
>                && rtx_equal_p (SUBREG_REG (XEXP (XEXP (t, 0), 0)), f)
>                && (num_sign_bit_copies (f, GET_MODE (f))
> -                  > (unsigned int)
> -                    (GET_MODE_PRECISION (int_mode)
> -                     - GET_MODE_PRECISION (inner_mode))))
> +                  > (unsigned int) (GET_MODE_PRECISION (int_mode)
> +                                    - GET_MODE_PRECISION
> (inner_mode))))
>         {
>           c1 = XEXP (XEXP (t, 0), 1); z = f; op = GET_CODE (XEXP (t,
> 0));
>           extend_op = SIGN_EXTEND;
>           m = inner_mode;
>         }
>        else if (GET_CODE (t) == SIGN_EXTEND
> -              && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> -              && (GET_CODE (XEXP (t, 0)) == PLUS
> -                  || GET_CODE (XEXP (t, 0)) == IOR
> +              && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> +              && (PLUS_P (XEXP (t, 0)) || GET_CODE (XEXP (t, 0)) ==
> IOR
>                    || GET_CODE (XEXP (t, 0)) == XOR)
>                && GET_CODE (XEXP (XEXP (t, 0), 1)) == SUBREG
>                && subreg_lowpart_p (XEXP (XEXP (t, 0), 1))
>                && rtx_equal_p (SUBREG_REG (XEXP (XEXP (t, 0), 1)), f)
>                && (num_sign_bit_copies (f, GET_MODE (f))
> -                  > (unsigned int)
> -                    (GET_MODE_PRECISION (int_mode)
> -                     - GET_MODE_PRECISION (inner_mode))))
> +                  > (unsigned int) (GET_MODE_PRECISION (int_mode)
> +                                    - GET_MODE_PRECISION
> (inner_mode))))
>         {
>           c1 = XEXP (XEXP (t, 0), 0); z = f; op = GET_CODE (XEXP (t,
> 0));
>           extend_op = SIGN_EXTEND;
>           m = inner_mode;
>         }
>        else if (GET_CODE (t) == ZERO_EXTEND
> -              && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> -              && (GET_CODE (XEXP (t, 0)) == PLUS
> -                  || GET_CODE (XEXP (t, 0)) == MINUS
> +              && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> +              && (PLUS_P (XEXP (t, 0)) || MINUS_P (XEXP (t, 0))
>                    || GET_CODE (XEXP (t, 0)) == IOR
>                    || GET_CODE (XEXP (t, 0)) == XOR
>                    || GET_CODE (XEXP (t, 0)) == ASHIFT
> @@ -6657,9 +6642,8 @@ simplify_if_then_else (rtx x)
>           m = inner_mode;
>         }
>        else if (GET_CODE (t) == ZERO_EXTEND
> -              && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> -              && (GET_CODE (XEXP (t, 0)) == PLUS
> -                  || GET_CODE (XEXP (t, 0)) == IOR
> +              && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)),
> &inner_mode)
> +              && (PLUS_P (XEXP (t, 0)) || GET_CODE (XEXP (t, 0)) ==
> IOR
>                    || GET_CODE (XEXP (t, 0)) == XOR)
>                && GET_CODE (XEXP (XEXP (t, 0), 1)) == SUBREG
>                && HWI_COMPUTABLE_MODE_P (int_mode)
> @@ -7386,8 +7370,7 @@ expand_field_assignment (const_rtx x)
>             {
>               if (CONST_INT_P (pos))
>                 pos = GEN_INT (inner_len - len - INTVAL (pos));
> -             else if (GET_CODE (pos) == MINUS
> -                      && CONST_INT_P (XEXP (pos, 1))
> +             else if (MINUS_P (pos) && CONST_INT_P (XEXP (pos, 1))
>                        && INTVAL (XEXP (pos, 1)) == inner_len - len)
>                 /* If position is ADJUST - X, new position is X.  */
>                 pos = XEXP (pos, 0);
> @@ -7541,9 +7524,8 @@ make_extraction (machine_mode mode, rtx inner,
> HOST_WIDE_INT pos,
>        if (new_rtx != 0)
>         return gen_rtx_ASHIFT (mode, new_rtx, XEXP (inner, 1));
>      }
> -  else if (GET_CODE (inner) == MULT
> -          && CONST_INT_P (XEXP (inner, 1))
> -          && pos_rtx == 0 && pos == 0)
> +  else if (MULT_P (inner) && CONST_INT_P (XEXP (inner, 1)) &&
> pos_rtx == 0
> +          && pos == 0)
>      {
>        /* We're extracting the least significant bits of an rtx
>          (mult X (const_int 2^C)), where LEN > C.  Extract the
> @@ -8017,19 +7999,18 @@ make_compound_operation_int (scalar_int_mode
> mode, rtx *x_ptr,
>        rhs = XEXP (x, 1);
>        lhs = make_compound_operation (lhs, next_code);
>        rhs = make_compound_operation (rhs, next_code);
> -      if (GET_CODE (lhs) == MULT && GET_CODE (XEXP (lhs, 0)) == NEG)
> +      if (MULT_P (lhs) && GET_CODE (XEXP (lhs, 0)) == NEG)
>         {
>           tem = simplify_gen_binary (MULT, mode, XEXP (XEXP (lhs, 0),
> 0),
>                                      XEXP (lhs, 1));
>           new_rtx = simplify_gen_binary (MINUS, mode, rhs, tem);
>         }
> -      else if (GET_CODE (lhs) == MULT
> +      else if (MULT_P (lhs)
>                && (CONST_INT_P (XEXP (lhs, 1)) && INTVAL (XEXP (lhs,
> 1)) < 0))
>         {
>           tem = simplify_gen_binary (MULT, mode, XEXP (lhs, 0),
>                                      simplify_gen_unary (NEG, mode,
> -                                                        XEXP (lhs,
> 1),
> -                                                        mode));
> +                                                        XEXP (lhs,
> 1), mode));
>           new_rtx = simplify_gen_binary (MINUS, mode, rhs, tem);
>         }
>        else
> @@ -8045,19 +8026,18 @@ make_compound_operation_int (scalar_int_mode
> mode, rtx *x_ptr,
>        rhs = XEXP (x, 1);
>        lhs = make_compound_operation (lhs, next_code);
>        rhs = make_compound_operation (rhs, next_code);
> -      if (GET_CODE (rhs) == MULT && GET_CODE (XEXP (rhs, 0)) == NEG)
> +      if (MULT_P (rhs) && GET_CODE (XEXP (rhs, 0)) == NEG)
>         {
>           tem = simplify_gen_binary (MULT, mode, XEXP (XEXP (rhs, 0),
> 0),
>                                      XEXP (rhs, 1));
>           return simplify_gen_binary (PLUS, mode, tem, lhs);
>         }
> -      else if (GET_CODE (rhs) == MULT
> +      else if (MULT_P (rhs)
>                && (CONST_INT_P (XEXP (rhs, 1)) && INTVAL (XEXP (rhs,
> 1)) < 0))
>         {
>           tem = simplify_gen_binary (MULT, mode, XEXP (rhs, 0),
>                                      simplify_gen_unary (NEG, mode,
> -                                                        XEXP (rhs,
> 1),
> -                                                        mode));
> +                                                        XEXP (rhs,
> 1), mode));
>           return simplify_gen_binary (PLUS, mode, tem, lhs);
>         }
>        else
> @@ -9288,11 +9268,10 @@ if_then_else_cond (rtx x, rtx *ptrue, rtx
> *pfalse)
>        /* See if we have PLUS, IOR, XOR, MINUS or UMAX, where one of
> the
>          operands is zero when the other is nonzero, and vice-versa,
>          and STORE_FLAG_VALUE is 1 or -1.  */
> -
>        if ((STORE_FLAG_VALUE == 1 || STORE_FLAG_VALUE == -1)
>           && (code == PLUS || code == IOR || code == XOR || code ==
> MINUS
>               || code == UMAX)
> -         && GET_CODE (XEXP (x, 0)) == MULT && GET_CODE (XEXP (x, 1))
> == MULT)
> +         && MULT_P (XEXP (x, 0)) && MULT_P (XEXP (x, 1)))
>         {
>           rtx op0 = XEXP (XEXP (x, 0), 1);
>           rtx op1 = XEXP (XEXP (x, 1), 1);
> @@ -9300,8 +9279,7 @@ if_then_else_cond (rtx x, rtx *ptrue, rtx
> *pfalse)
>           cond0 = XEXP (XEXP (x, 0), 0);
>           cond1 = XEXP (XEXP (x, 1), 0);
>  
> -         if (COMPARISON_P (cond0)
> -             && COMPARISON_P (cond1)
> +         if (COMPARISON_P (cond0) && COMPARISON_P (cond1)
>               && SCALAR_INT_MODE_P (mode)
>               && ((GET_CODE (cond0) == reversed_comparison_code
> (cond1, NULL)
>                    && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 0))
> @@ -9310,15 +9288,14 @@ if_then_else_cond (rtx x, rtx *ptrue, rtx
> *pfalse)
>                        == reversed_comparison_code (cond1, NULL))
>                       && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1,
> 1))
>                       && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1,
> 0))))
> -             && ! side_effects_p (x))
> +             && !side_effects_p (x))
>             {
>               *ptrue = simplify_gen_binary (MULT, mode, op0,
> const_true_rtx);
> -             *pfalse = simplify_gen_binary (MULT, mode,
> -                                            (code == MINUS
> -                                             ? simplify_gen_unary
> (NEG, mode,
> -                                                                  
> op1, mode)
> -                                             : op1),
> -                                             const_true_rtx);
> +             *pfalse = simplify_gen_binary (
> +               MULT, mode,
> +               (code == MINUS ? simplify_gen_unary (NEG, mode, op1,
> mode)
> +                              : op1),
> +               const_true_rtx);
>               return cond0;
>             }
>         }
> @@ -9327,25 +9304,24 @@ if_then_else_cond (rtx x, rtx *ptrue, rtx
> *pfalse)
>          is always zero.  */
>        if ((STORE_FLAG_VALUE == 1 || STORE_FLAG_VALUE == -1)
>           && (code == MULT || code == AND || code == UMIN)
> -         && GET_CODE (XEXP (x, 0)) == MULT && GET_CODE (XEXP (x, 1))
> == MULT)
> -       {
> -         cond0 = XEXP (XEXP (x, 0), 0);
> -         cond1 = XEXP (XEXP (x, 1), 0);
> -
> -         if (COMPARISON_P (cond0)
> -             && COMPARISON_P (cond1)
> -             && ((GET_CODE (cond0) == reversed_comparison_code
> (cond1, NULL)
> -                  && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 0))
> -                  && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 1)))
> -                 || ((swap_condition (GET_CODE (cond0))
> -                      == reversed_comparison_code (cond1, NULL))
> -                     && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1,
> 1))
> -                     && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1,
> 0))))
> -             && ! side_effects_p (x))
> -           {
> -             *ptrue = *pfalse = const0_rtx;
> -             return cond0;
> -           }
> +    && MULT_P (XEXP (x, 0)) && MULT_P (XEXP (x, 1))
> +       {
> +       cond0 = XEXP (XEXP (x, 0), 0);
> +       cond1 = XEXP (XEXP (x, 1), 0);
> +
> +       if (COMPARISON_P (cond0) && COMPARISON_P (cond1)
> +           && ((GET_CODE (cond0) == reversed_comparison_code (cond1,
> NULL)
> +                && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 0))
> +                && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 1)))
> +               || ((swap_condition (GET_CODE (cond0))
> +                    == reversed_comparison_code (cond1, NULL))
> +                   && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 1))
> +                   && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1,
> 0))))
> +           && !side_effects_p (x))
> +         {
> +           *ptrue = *pfalse = const0_rtx;
> +           return cond0;
> +         }
>         }
>      }
>  
> @@ -10100,7 +10076,7 @@ simplify_and_const_int_1 (scalar_int_mode
> mode, rtx varop,
>       the AND and see if one of the operands simplifies to zero.  If
> so, we
>       may eliminate it.  */
>  
> -  if (GET_CODE (varop) == PLUS
> +  if (PLUS_P (varop)
>        && pow2p_hwi (constop + 1))
>      {
>        rtx o0, o1;
> @@ -10939,7 +10915,7 @@ simplify_shift_const_1 (enum rtx_code code,
> machine_mode result_mode,
>              and STORE_FLAG_VALUE is 1 or we have a logical shift
> with
>              STORE_FLAG_VALUE of -1, we have a (neg (le X 0))
> operation.  */
>  
> -         if (GET_CODE (varop) == IOR && GET_CODE (XEXP (varop, 0))
> == PLUS
> +         if (GET_CODE (varop) == IOR && PLUS_P (XEXP (varop, 0))
>               && XEXP (XEXP (varop, 0), 1) == constm1_rtx
>               && (STORE_FLAG_VALUE == 1 || STORE_FLAG_VALUE == -1)
>               && (code == LSHIFTRT || code == ASHIFTRT)
> @@ -10947,8 +10923,7 @@ simplify_shift_const_1 (enum rtx_code code,
> machine_mode result_mode,
>               && rtx_equal_p (XEXP (XEXP (varop, 0), 0), XEXP (varop,
> 1)))
>             {
>               count = 0;
> -             varop = gen_rtx_LE (int_varop_mode, XEXP (varop, 1),
> -                                 const0_rtx);
> +             varop = gen_rtx_LE (int_varop_mode, XEXP (varop, 1),
> const0_rtx);
>  
>               if (STORE_FLAG_VALUE == 1 ? code == ASHIFTRT : code ==
> LSHIFTRT)
>                 varop = gen_rtx_NEG (int_varop_mode, varop);
> @@ -12402,33 +12377,33 @@ simplify_comparison (enum rtx_code code,
> rtx *pop0, rtx *pop1)
>               && is_a <scalar_int_mode> (GET_MODE (SUBREG_REG (op0)),
>                                          &inner_mode)
>               && GET_MODE_PRECISION (inner_mode) > mode_width
> -             && GET_CODE (SUBREG_REG (op0)) == PLUS
> +             && PLUS_P (SUBREG_REG (op0))
>               && CONST_INT_P (XEXP (SUBREG_REG (op0), 1)))
>             {
>               rtx a = XEXP (SUBREG_REG (op0), 0);
>               HOST_WIDE_INT c1 = -INTVAL (XEXP (SUBREG_REG (op0),
> 1));
>  
>               if ((c1 > 0
> -                  && (unsigned HOST_WIDE_INT) c1
> -                      < HOST_WIDE_INT_1U << (mode_width - 1)
> +                  && (unsigned HOST_WIDE_INT) c1 < HOST_WIDE_INT_1U
> +                                                     << (mode_width
> - 1)
>                    && (equality_comparison_p ||
> unsigned_comparison_p)
>                    /* (A - C1) zero-extends if it is positive and
> sign-extends
>                       if it is negative, C2 both zero- and sign-
> extends.  */
> -                  && (((nonzero_bits (a, inner_mode)
> -                        & ~GET_MODE_MASK (mode)) == 0
> +                  && (((nonzero_bits (a, inner_mode) &
> ~GET_MODE_MASK (mode))
> +                         == 0
>                         && const_op >= 0)
>                        /* (A - C1) sign-extends if it is positive and
> 1-extends
>                           if it is negative, C2 both sign- and 1-
> extends.  */
>                        || (num_sign_bit_copies (a, inner_mode)
> -                          > (unsigned int) (GET_MODE_PRECISION
> (inner_mode)
> -                                            - mode_width)
> +                            > (unsigned int) (GET_MODE_PRECISION
> (inner_mode)
> +                                              - mode_width)
>                            && const_op < 0)))
> -                 || ((unsigned HOST_WIDE_INT) c1
> -                      < HOST_WIDE_INT_1U << (mode_width - 2)
> +                 || ((unsigned HOST_WIDE_INT) c1 < HOST_WIDE_INT_1U
> +                                                     << (mode_width
> - 2)
>                       /* (A - C1) always sign-extends, like C2.  */
>                       && num_sign_bit_copies (a, inner_mode)
> -                        > (unsigned int) (GET_MODE_PRECISION
> (inner_mode)
> -                                          - (mode_width - 1))))
> +                          > (unsigned int) (GET_MODE_PRECISION
> (inner_mode)
> +                                            - (mode_width - 1))))
>                 {
>                   op0 = SUBREG_REG (op0);
>                   continue;
> @@ -12559,7 +12534,7 @@ simplify_comparison (enum rtx_code code, rtx
> *pop0, rtx *pop1)
>         case IOR:
>           /* The sign bit of (ior (plus X (const_int -1)) X) is
> nonzero
>              iff X <= 0.  */
> -         if (sign_bit_comparison_p && GET_CODE (XEXP (op0, 0)) ==
> PLUS
> +         if (sign_bit_comparison_p && PLUS_P (XEXP (op0, 0))
>               && XEXP (XEXP (op0, 0), 1) == constm1_rtx
>               && rtx_equal_p (XEXP (XEXP (op0, 0), 0), XEXP (op0,
> 1)))
>             {
> @@ -12812,14 +12787,12 @@ simplify_comparison (enum rtx_code code,
> rtx *pop0, rtx *pop1)
>           /* Likewise if OP0 is a PLUS of a sign extension with a
>              constant, which is usually represented with the PLUS
>              between the shifts.  */
> -         if (! unsigned_comparison_p
> -             && CONST_INT_P (XEXP (op0, 1))
> -             && GET_CODE (XEXP (op0, 0)) == PLUS
> -             && CONST_INT_P (XEXP (XEXP (op0, 0), 1))
> +         if (!unsigned_comparison_p && CONST_INT_P (XEXP (op0, 1))
> +             && PLUS_P (XEXP (op0, 0)) && CONST_INT_P (XEXP (XEXP
> (op0, 0), 1))
>               && GET_CODE (XEXP (XEXP (op0, 0), 0)) == ASHIFT
>               && XEXP (op0, 1) == XEXP (XEXP (XEXP (op0, 0), 0), 1)
>               && (int_mode_for_size (mode_width - INTVAL (XEXP (op0,
> 1)), 1)
> -                 .exists (&tmode))
> +                   .exists (&tmode))
>               && (((unsigned HOST_WIDE_INT) const_op
>                    + (GET_MODE_MASK (tmode) >> 1) + 1)
>                   <= GET_MODE_MASK (tmode)))
> diff --git a/gcc/compare-elim.cc b/gcc/compare-elim.cc
> index 4a23202f8ff..9427b81dc9e 100644
> --- a/gcc/compare-elim.cc
> +++ b/gcc/compare-elim.cc
> @@ -831,8 +831,7 @@ try_eliminate_compare (struct comparison *cmp)
>            (minus:SI (reg:SI) (reg:SI))))
>        (set (reg:CC flags)
>            (compare:CC (reg:SI) (reg:SI)))] */
> -  else if (REG_P (in_b)
> -          && GET_CODE (SET_SRC (x)) == MINUS
> +  else if (REG_P (in_b) && MINUS_P (SET_SRC (x))
>            && rtx_equal_p (XEXP (SET_SRC (x), 0), in_a)
>            && rtx_equal_p (XEXP (SET_SRC (x), 1), in_b))
>      cmp_a = in_a;
> diff --git a/gcc/cse.cc b/gcc/cse.cc
> index b13afd4ba72..cf542cbd72c 100644
> --- a/gcc/cse.cc
> +++ b/gcc/cse.cc
> @@ -1264,8 +1264,7 @@ find_reg_offset_for_const (struct table_elt
> *anchor_elt, HOST_WIDE_INT offs,
>         return match;
>  
>        if (REG_P (elt->exp)
> -         || (GET_CODE (elt->exp) == PLUS
> -             && REG_P (XEXP (elt->exp, 0))
> +         || (PLUS_P (elt->exp) && REG_P (XEXP (elt->exp, 0))
>               && GET_CODE (XEXP (elt->exp, 1)) == CONST_INT))
>         {
>           rtx x;
> @@ -1276,9 +1275,8 @@ find_reg_offset_for_const (struct table_elt
> *anchor_elt, HOST_WIDE_INT offs,
>  
>           x = plus_constant (GET_MODE (elt->exp), elt->exp, offs);
>           if (REG_P (x)
> -             || (GET_CODE (x) == PLUS
> -                 && IN_RANGE (INTVAL (XEXP (x, 1)),
> -                              -targetm.const_anchor,
> +             || (PLUS_P (x)
> +                 && IN_RANGE (INTVAL (XEXP (x, 1)), -
> targetm.const_anchor,
>                                targetm.const_anchor - 1)))
>             {
>               match = x;
> @@ -3492,40 +3490,48 @@ fold_rtx (rtx x, rtx_insn *insn)
>              ADDR_DIFF_VEC table.  */
>           if (const_arg1 && GET_CODE (const_arg1) == LABEL_REF)
>             {
> -             rtx y
> -               = GET_CODE (folded_arg0) == MINUS ? folded_arg0
> -               : lookup_as_function (folded_arg0, MINUS);
> +             rtx y = MINUS_P (folded_arg0)
> +                       ? folded_arg0
> +                       : lookup_as_function (folded_arg0, MINUS);
>  
>               if (y != 0 && GET_CODE (XEXP (y, 1)) == LABEL_REF
> -                 && label_ref_label (XEXP (y, 1)) == label_ref_label
> (const_arg1))
> +                 && label_ref_label (XEXP (y, 1))
> +                      == label_ref_label (const_arg1))
>                 return XEXP (y, 0);
>  
>               /* Now try for a CONST of a MINUS like the above.  */
> -             if ((y = (GET_CODE (folded_arg0) == CONST ? folded_arg0
> -                       : lookup_as_function (folded_arg0, CONST)))
> != 0
> -                 && GET_CODE (XEXP (y, 0)) == MINUS
> +             if ((y = (GET_CODE (folded_arg0) == CONST
> +                         ? folded_arg0
> +                         : lookup_as_function (folded_arg0, CONST)))
> +                   != 0
> +                 && MINUS_P (XEXP (y, 0))
>                   && GET_CODE (XEXP (XEXP (y, 0), 1)) == LABEL_REF
> -                 && label_ref_label (XEXP (XEXP (y, 0), 1)) ==
> label_ref_label (const_arg1))
> +                 && label_ref_label (XEXP (XEXP (y, 0), 1))
> +                      == label_ref_label (const_arg1))
>                 return XEXP (XEXP (y, 0), 0);
>             }
>  
>           /* Likewise if the operands are in the other order.  */
>           if (const_arg0 && GET_CODE (const_arg0) == LABEL_REF)
>             {
> -             rtx y
> -               = GET_CODE (folded_arg1) == MINUS ? folded_arg1
> -               : lookup_as_function (folded_arg1, MINUS);
> +             rtx y = MINUS_P (folded_arg1)
> +                       ? folded_arg1
> +                       : lookup_as_function (folded_arg1, MINUS);
>  
>               if (y != 0 && GET_CODE (XEXP (y, 1)) == LABEL_REF
> -                 && label_ref_label (XEXP (y, 1)) == label_ref_label
> (const_arg0))
> +                 && label_ref_label (XEXP (y, 1))
> +                      == label_ref_label (const_arg0))
>                 return XEXP (y, 0);
>  
>               /* Now try for a CONST of a MINUS like the above.  */
> -             if ((y = (GET_CODE (folded_arg1) == CONST ? folded_arg1
> -                       : lookup_as_function (folded_arg1, CONST)))
> != 0
> -                 && GET_CODE (XEXP (y, 0)) == MINUS
> +             if ((y = (GET_CODE (folded_arg1) == CONST
> +                         ? folded_arg1
> +                         : lookup_as_function (folded_arg1, CONST)))
> +                   != 0
> +                 && MINUS_P (XEXP (y, 0))
>                   && GET_CODE (XEXP (XEXP (y, 0), 1)) == LABEL_REF
> -                 && label_ref_label (XEXP (XEXP (y, 0), 1)) ==
> label_ref_label (const_arg0))
> +                 && label_ref_label (XEXP (XEXP (y, 0), 1))
> +                      == label_ref_label (const_arg0))
>                 return XEXP (XEXP (y, 0), 0);
>             }
>  
> @@ -4817,7 +4823,7 @@ cse_insn (rtx_insn *insn)
>               /* Consider (minus (label_ref L1) (label_ref L2)) as
>                  "constant" here so we will record it. This allows us
>                  to fold switch statements when an ADDR_DIFF_VEC is
> used.  */
> -             || (GET_CODE (src_folded) == MINUS
> +             || (MINUS_P (src_folded)
>                   && GET_CODE (XEXP (src_folded, 0)) == LABEL_REF
>                   && GET_CODE (XEXP (src_folded, 1)) == LABEL_REF)))
>         src_const = src_folded, src_const_elt = elt;
> @@ -5364,9 +5370,10 @@ cse_insn (rtx_insn *insn)
>                    && (GET_CODE (XEXP (trial, 0)) == TRUNCATE
>                        /* Likewise on IA-64, except without the
>                           truncate.  */
> -                      || (GET_CODE (XEXP (trial, 0)) == MINUS
> +                      || (MINUS_P (XEXP (trial, 0))
>                            && GET_CODE (XEXP (XEXP (trial, 0), 0)) ==
> LABEL_REF
> -                          && GET_CODE (XEXP (XEXP (trial, 0), 1)) ==
> LABEL_REF)))
> +                          && GET_CODE (XEXP (XEXP (trial, 0), 1))
> +                               == LABEL_REF)))
>             /* Do nothing for this case.  */
>             ;
>  
> @@ -5489,14 +5496,9 @@ cse_insn (rtx_insn *insn)
>          Avoid a REG_EQUAL note for (CONST (MINUS (LABEL_REF)
> (LABEL_REF)))
>          which can be created for a reference to a compile time
> computable
>          entry in a jump table.  */
> -      if (n_sets == 1
> -         && REG_P (dest)
> -         && src_const
> -         && !REG_P (src_const)
> -         && !(GET_CODE (src_const) == SUBREG
> -              && REG_P (SUBREG_REG (src_const)))
> -         && !(GET_CODE (src_const) == CONST
> -              && GET_CODE (XEXP (src_const, 0)) == MINUS
> +      if (n_sets == 1 && REG_P (dest) && src_const && !REG_P
> (src_const)
> +         && !(GET_CODE (src_const) == SUBREG && REG_P (SUBREG_REG
> (src_const)))
> +         && !(GET_CODE (src_const) == CONST && MINUS_P (XEXP
> (src_const, 0))
>                && GET_CODE (XEXP (XEXP (src_const, 0), 0)) ==
> LABEL_REF
>                && GET_CODE (XEXP (XEXP (src_const, 0), 1)) ==
> LABEL_REF)
>           && !rtx_equal_p (src, src_const))
> diff --git a/gcc/cselib.cc b/gcc/cselib.cc
> index 2abc763a3f8..9d7ea8ae320 100644
> --- a/gcc/cselib.cc
> +++ b/gcc/cselib.cc
> @@ -481,8 +481,7 @@ invariant_or_equiv_p (cselib_val *v)
>         return true;
>  
>        /* (plus (value V) (const_int C)) is invariant iff V is
> invariant.  */
> -      if (GET_CODE (v->locs->loc) == PLUS
> -         && CONST_INT_P (XEXP (v->locs->loc, 1))
> +      if (PLUS_P (v->locs->loc) && CONST_INT_P (XEXP (v->locs->loc,
> 1))
>           && GET_CODE (XEXP (v->locs->loc, 0)) == VALUE
>           && invariant_or_equiv_p (CSELIB_VAL_PTR (XEXP (v->locs-
> >loc, 0))))
>         return true;
> @@ -547,10 +546,9 @@ cselib_reset_table (unsigned int num)
>  
>        /* If cfa_base is sp + const_int, need to preserve also the
>          SP_DERIVED_VALUE_P value.  */
> -      for (struct elt_loc_list *l = cfa_base_preserved_val->locs;
> -          l; l = l->next)
> -       if (GET_CODE (l->loc) == PLUS
> -           && GET_CODE (XEXP (l->loc, 0)) == VALUE
> +      for (struct elt_loc_list *l = cfa_base_preserved_val->locs; l;
> +          l = l->next)
> +       if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
>             && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
>             && CONST_INT_P (XEXP (l->loc, 1)))
>           {
> @@ -893,8 +891,7 @@ autoinc_split (rtx x, rtx *off, machine_mode
> memmode)
>               return e->val_rtx;
>             }
>           for (struct elt_loc_list *l = e->locs; l; l = l->next)
> -           if (GET_CODE (l->loc) == PLUS
> -               && GET_CODE (XEXP (l->loc, 0)) == VALUE
> +           if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) ==
> VALUE
>                 && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
>                 && CONST_INT_P (XEXP (l->loc, 1)))
>               {
> @@ -1015,9 +1012,7 @@ rtx_equal_for_cselib_1 (rtx x, rtx y,
> machine_mode memmode, int depth)
>      return 0;
>  
>    if (GET_CODE (x) != GET_CODE (y)
> -      || (GET_CODE (x) == PLUS
> -         && GET_MODE (x) == Pmode
> -         && CONST_INT_P (XEXP (x, 1))
> +      || (PLUS_P (x) && GET_MODE (x) == Pmode && CONST_INT_P (XEXP
> (x, 1))
>           && CONST_INT_P (XEXP (y, 1))))
>      {
>        rtx xorig = x, yorig = y;
> @@ -1238,10 +1233,9 @@ cselib_hash_plus_const_int (rtx x,
> HOST_WIDE_INT c, int create,
>    if (! e)
>      return 0;
>  
> -  if (! SP_DERIVED_VALUE_P (e->val_rtx))
> +  if (!SP_DERIVED_VALUE_P (e->val_rtx))
>      for (struct elt_loc_list *l = e->locs; l; l = l->next)
> -      if (GET_CODE (l->loc) == PLUS
> -         && GET_CODE (XEXP (l->loc, 0)) == VALUE
> +      if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
>           && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
>           && CONST_INT_P (XEXP (l->loc, 1)))
>         {
> @@ -2195,10 +2189,9 @@ cselib_subst_to_values (rtx x, machine_mode
> memmode)
>             {
>               if (SP_DERIVED_VALUE_P (t) && XEXP (x, 1) ==
> const0_rtx)
>                 return t;
> -             for (struct elt_loc_list *l = CSELIB_VAL_PTR (t)->locs;
> -                  l; l = l->next)
> -               if (GET_CODE (l->loc) == PLUS
> -                   && GET_CODE (XEXP (l->loc, 0)) == VALUE
> +             for (struct elt_loc_list *l = CSELIB_VAL_PTR (t)->locs;
> l;
> +                  l = l->next)
> +               if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) ==
> VALUE
>                     && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
>                     && CONST_INT_P (XEXP (l->loc, 1)))
>                   return plus_constant (Pmode, l->loc, INTVAL (XEXP
> (x, 1)));
> @@ -2774,8 +2767,7 @@ cselib_record_sp_cfa_base_equiv (HOST_WIDE_INT
> offset, rtx_insn *insn)
>         sp_derived_value = l->loc;
>         break;
>        }
> -    else if (GET_CODE (l->loc) == PLUS
> -            && GET_CODE (XEXP (l->loc, 0)) == VALUE
> +    else if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
>              && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
>              && CONST_INT_P (XEXP (l->loc, 1)))
>        {
> @@ -2803,8 +2795,7 @@ cselib_sp_derived_value_p (cselib_val *v)
>  {
>    if (!SP_DERIVED_VALUE_P (v->val_rtx))
>      for (struct elt_loc_list *l = v->locs; l; l = l->next)
> -      if (GET_CODE (l->loc) == PLUS
> -         && GET_CODE (XEXP (l->loc, 0)) == VALUE
> +      if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
>           && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
>           && CONST_INT_P (XEXP (l->loc, 1)))
>         v = CSELIB_VAL_PTR (XEXP (l->loc, 0));
> @@ -2813,7 +2804,7 @@ cselib_sp_derived_value_p (cselib_val *v)
>    for (struct elt_loc_list *l = v->locs; l; l = l->next)
>      if (l->loc == cfa_base_preserved_val->val_rtx)
>        return true;
> -    else if (GET_CODE (l->loc) == PLUS
> +    else if (PLUS_P (l->loc)
>              && XEXP (l->loc, 0) == cfa_base_preserved_val->val_rtx
>              && CONST_INT_P (XEXP (l->loc, 1)))
>        return true;
> diff --git a/gcc/dce.cc b/gcc/dce.cc
> index 64aa0aa471d..6157f2630f6 100644
> --- a/gcc/dce.cc
> +++ b/gcc/dce.cc
> @@ -300,9 +300,7 @@ sp_based_mem_offset (rtx_call_insn *call_insn,
> const_rtx mem, bool fast)
>  {
>    HOST_WIDE_INT off = 0;
>    rtx addr = XEXP (mem, 0);
> -  if (GET_CODE (addr) == PLUS
> -      && REG_P (XEXP (addr, 0))
> -      && CONST_INT_P (XEXP (addr, 1)))
> +  if (PLUS_P (addr) && REG_P (XEXP (addr, 0)) && CONST_INT_P (XEXP
> (addr, 1)))
>      {
>        off = INTVAL (XEXP (addr, 1));
>        addr = XEXP (addr, 0);
> diff --git a/gcc/dwarf2cfi.cc b/gcc/dwarf2cfi.cc
> index bef3165e691..457a6487d64 100644
> --- a/gcc/dwarf2cfi.cc
> +++ b/gcc/dwarf2cfi.cc
> @@ -2094,7 +2094,7 @@ dwarf2out_frame_debug_expr (rtx expr)
>  
>             gcc_assert (REG_P (XEXP (XEXP (dest, 0), 0)));
>             offset = rtx_to_poly_int64 (XEXP (XEXP (dest, 0), 1));
> -           if (GET_CODE (XEXP (dest, 0)) == MINUS)
> +           if (MINUS_P (XEXP (dest, 0)))
>               offset = -offset;
>  
>             regno = dwf_cfa_reg (XEXP (XEXP (dest, 0), 0));
> diff --git a/gcc/dwarf2out.cc b/gcc/dwarf2out.cc
> index e81044b8c48..92ca8e3b081 100644
> --- a/gcc/dwarf2out.cc
> +++ b/gcc/dwarf2out.cc
> @@ -14906,10 +14906,10 @@ based_loc_descr (rtx reg, poly_int64
> offset,
>  static inline int
>  is_based_loc (const_rtx rtl)
>  {
> -  return (GET_CODE (rtl) == PLUS
> -         && ((REG_P (XEXP (rtl, 0))
> -              && REGNO (XEXP (rtl, 0)) < FIRST_PSEUDO_REGISTER
> -              && CONST_INT_P (XEXP (rtl, 1)))));
> +  return (
> +    PLUS_P (rtl)
> +    && ((REG_P (XEXP (rtl, 0)) && REGNO (XEXP (rtl, 0)) <
> FIRST_PSEUDO_REGISTER
> +        && CONST_INT_P (XEXP (rtl, 1)))));
>  }
>  
>  /* Try to handle TLS MEMs, for which mem_loc_descriptor on XEXP
> (mem, 0)
> @@ -30686,8 +30686,7 @@ optimize_one_addr_into_implicit_ptr
> (dw_loc_descr_ref loc)
>    dw_die_ref ref = NULL;
>    tree decl;
>  
> -  if (GET_CODE (rtl) == CONST
> -      && GET_CODE (XEXP (rtl, 0)) == PLUS
> +  if (GET_CODE (rtl) == CONST && PLUS_P (XEXP (rtl, 0))
>        && CONST_INT_P (XEXP (XEXP (rtl, 0), 1)))
>      {
>        offset = INTVAL (XEXP (XEXP (rtl, 0), 1));
> diff --git a/gcc/emit-rtl.cc b/gcc/emit-rtl.cc
> index f25fb70ab97..54e793bc949 100644
> --- a/gcc/emit-rtl.cc
> +++ b/gcc/emit-rtl.cc
> @@ -2514,10 +2514,8 @@ offset_address (rtx memref, rtx offset,
> unsigned HOST_WIDE_INT pow2)
>       being able to recognize the magic around pic_offset_table_rtx.
>       This stuff is fragile, and is yet another example of why it is
>       bad to expose PIC machinery too early.  */
> -  if (! memory_address_addr_space_p (GET_MODE (memref), new_rtx,
> -                                    attrs.addrspace)
> -      && GET_CODE (addr) == PLUS
> -      && XEXP (addr, 0) == pic_offset_table_rtx)
> +  if (!memory_address_addr_space_p (GET_MODE (memref), new_rtx,
> attrs.addrspace)
> +      && PLUS_P (addr) && XEXP (addr, 0) == pic_offset_table_rtx)
>      {
>        addr = force_reg (GET_MODE (addr), addr);
>        new_rtx = simplify_gen_binary (PLUS, address_mode, addr,
> offset);
> diff --git a/gcc/explow.cc b/gcc/explow.cc
> index 568e0eb1a15..73435df1531 100644
> --- a/gcc/explow.cc
> +++ b/gcc/explow.cc
> @@ -268,11 +268,9 @@ static rtx
>  break_out_memory_refs (rtx x)
>  {
>    if (MEM_P (x)
> -      || (CONSTANT_P (x) && CONSTANT_ADDRESS_P (x)
> -         && GET_MODE (x) != VOIDmode))
> +      || (CONSTANT_P (x) && CONSTANT_ADDRESS_P (x) && GET_MODE (x)
> != VOIDmode))
>      x = force_reg (GET_MODE (x), x);
> -  else if (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS
> -          || GET_CODE (x) == MULT)
> +  else if (PLUS_P (x) || MINUS_P (x) || MULT_P (x))
>      {
>        rtx op0 = break_out_memory_refs (XEXP (x, 0));
>        rtx op1 = break_out_memory_refs (XEXP (x, 1));
> @@ -363,13 +361,12 @@ convert_memory_address_addr_space_1
> (scalar_int_mode to_mode ATTRIBUTE_UNUSED,
>          narrower. Inside a CONST RTL, this is safe for both pointers
>          zero or sign extended as pointers cannot wrap. */
>        if (GET_MODE_SIZE (to_mode) < GET_MODE_SIZE (from_mode)
> -         || (GET_CODE (x) == PLUS
> -             && CONST_INT_P (XEXP (x, 1))
> +         || (PLUS_P (x) && CONST_INT_P (XEXP (x, 1))
>               && ((in_const && POINTERS_EXTEND_UNSIGNED != 0)
> -                 || XEXP (x, 1) ==
> convert_memory_address_addr_space_1
> -                                    (to_mode, XEXP (x, 1), as,
> in_const,
> -                                     no_emit)
> -                  || POINTERS_EXTEND_UNSIGNED < 0)))
> +                 || XEXP (x, 1)
> +                      == convert_memory_address_addr_space_1 (
> +                        to_mode, XEXP (x, 1), as, in_const, no_emit)
> +                 || POINTERS_EXTEND_UNSIGNED < 0)))
>         {
>           temp = convert_memory_address_addr_space_1 (to_mode, XEXP
> (x, 0),
>                                                       as, in_const,
> no_emit);
> @@ -483,7 +480,7 @@ memory_address_addr_space (machine_mode mode, rtx
> x, addr_space_t as)
>          and index off of it.  We do this because it often makes
>          shorter code, and because the addresses thus generated
>          in registers often become common subexpressions.  */
> -      if (GET_CODE (x) == PLUS)
> +      if (PLUS_P (x))
>         {
>           rtx constant_term = const0_rtx;
>           rtx y = eliminate_constant_term (x, &constant_term);
> @@ -500,7 +497,7 @@ memory_address_addr_space (machine_mode mode, rtx
> x, addr_space_t as)
>             }
>         }
>  
> -      else if (GET_CODE (x) == MULT || GET_CODE (x) == MINUS)
> +      else if (MINUS_P (x) || MULT_P (x))
>         x = force_operand (x, NULL_RTX);
>  
>        /* If we have a register that's an invalid address,
> @@ -523,9 +520,7 @@ memory_address_addr_space (machine_mode mode, rtx
> x, addr_space_t as)
>      return x;
>    else if (REG_P (x))
>      mark_reg_pointer (x, BITS_PER_UNIT);
> -  else if (GET_CODE (x) == PLUS
> -          && REG_P (XEXP (x, 0))
> -          && CONST_INT_P (XEXP (x, 1)))
> +  else if (PLUS_P (x) && REG_P (XEXP (x, 0)) && CONST_INT_P (XEXP
> (x, 1)))
>      mark_reg_pointer (XEXP (x, 0), BITS_PER_UNIT);
>  
>    /* OLDX may have been the address on a temporary.  Update the
> address
> @@ -572,8 +567,7 @@ use_anchored_address (rtx x)
>    /* Split the address into a base and offset.  */
>    base = XEXP (x, 0);
>    offset = 0;
> -  if (GET_CODE (base) == CONST
> -      && GET_CODE (XEXP (base, 0)) == PLUS
> +  if (GET_CODE (base) == CONST && PLUS_P (XEXP (base, 0))
>        && CONST_INT_P (XEXP (XEXP (base, 0), 1)))
>      {
>        offset += INTVAL (XEXP (XEXP (base, 0), 1));
> @@ -711,8 +705,7 @@ force_reg (machine_mode mode, rtx x)
>        }
>      else if (GET_CODE (x) == LABEL_REF)
>        align = BITS_PER_UNIT;
> -    else if (GET_CODE (x) == CONST
> -            && GET_CODE (XEXP (x, 0)) == PLUS
> +    else if (GET_CODE (x) == CONST && PLUS_P (XEXP (x, 0))
>              && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF
>              && CONST_INT_P (XEXP (XEXP (x, 0), 1)))
>        {
> diff --git a/gcc/expr.cc b/gcc/expr.cc
> index d9407432ea5..de6481c1fbe 100644
> --- a/gcc/expr.cc
> +++ b/gcc/expr.cc
> @@ -3865,9 +3865,9 @@ emit_move_resolve_push (machine_mode mode, rtx
> x)
>      {
>        rtx expr = XEXP (XEXP (x, 0), 1);
>  
> -      gcc_assert (GET_CODE (expr) == PLUS || GET_CODE (expr) ==
> MINUS);
> +      gcc_assert (PLUS_P (expr) || MINUS_P (expr));
>        poly_int64 val = rtx_to_poly_int64 (XEXP (expr, 1));
> -      if (GET_CODE (expr) == MINUS)
> +      if (MINUS_P (expr))
>         val = -val;
>        gcc_assert (known_eq (adjust, val) || known_eq (adjust, -
> val));
>        adjust = val;
> @@ -4653,7 +4653,7 @@ find_args_size_adjust (rtx_insn *insn)
>         case PRE_MODIFY:
>         case POST_MODIFY:
>           addr = XEXP (addr, 1);
> -         gcc_assert (GET_CODE (addr) == PLUS);
> +         gcc_assert (PLUS_P (addr));
>           gcc_assert (XEXP (addr, 0) == stack_pointer_rtx);
>           return rtx_to_poly_int64 (XEXP (addr, 1));
>         default:
> @@ -8170,13 +8170,12 @@ force_operand (rtx value, rtx target)
>         }
>  
>        /* Check for an addition with OP2 a constant integer and our
> first
> -         operand a PLUS of a virtual register and something else. 
> In that
> -         case, we want to emit the sum of the virtual register and
> the
> -         constant first and then add the other value.  This allows
> virtual
> -         register instantiation to simply modify the constant rather
> than
> -         creating another one around this addition.  */
> -      if (code == PLUS && CONST_INT_P (op2)
> -         && GET_CODE (XEXP (value, 0)) == PLUS
> +        operand a PLUS of a virtual register and something else.  In
> that
> +        case, we want to emit the sum of the virtual register and
> the
> +        constant first and then add the other value.  This allows
> virtual
> +        register instantiation to simply modify the constant rather
> than
> +        creating another one around this addition.  */
> +      if (code == PLUS && CONST_INT_P (op2) && PLUS_P (XEXP (value,
> 0))
>           && REG_P (XEXP (XEXP (value, 0), 0))
>           && REGNO (XEXP (XEXP (value, 0), 0)) >=
> FIRST_VIRTUAL_REGISTER
>           && REGNO (XEXP (XEXP (value, 0), 0)) <=
> LAST_VIRTUAL_REGISTER)
> @@ -8295,12 +8294,12 @@ safe_from_p (const_rtx x, tree exp, int
> top_p)
>           && (TREE_CODE (TREE_TYPE (exp)) != ARRAY_TYPE
>               || TYPE_ARRAY_MAX_SIZE (TREE_TYPE (exp)) == NULL_TREE
>               || TREE_CODE (TYPE_ARRAY_MAX_SIZE (TREE_TYPE (exp)))
> -             != INTEGER_CST)
> +                  != INTEGER_CST)
>           && GET_MODE (x) == BLKmode)
>        /* If X is in the outgoing argument area, it is always safe. 
> */
>        || (MEM_P (x)
>           && (XEXP (x, 0) == virtual_outgoing_args_rtx
> -             || (GET_CODE (XEXP (x, 0)) == PLUS
> +             || (PLUS_P (XEXP (x, 0))
>                   && XEXP (XEXP (x, 0), 0) ==
> virtual_outgoing_args_rtx))))
>      return 1;
>  
> diff --git a/gcc/final.cc b/gcc/final.cc
> index eea572238f6..f6d4a62f10f 100644
> --- a/gcc/final.cc
> +++ b/gcc/final.cc
> @@ -3061,13 +3061,14 @@ cleanup_subreg_operands (rtx_insn *insn)
>          expression directly.  */
>        if (GET_CODE (*recog_data.operand_loc[i]) == SUBREG)
>         {
> -         recog_data.operand[i] = alter_subreg
> (recog_data.operand_loc[i], true);
> +         recog_data.operand[i]
> +           = alter_subreg (recog_data.operand_loc[i], true);
>           changed = true;
>         }
> -      else if (GET_CODE (recog_data.operand[i]) == PLUS
> -              || GET_CODE (recog_data.operand[i]) == MULT
> +      else if (PLUS_P (recog_data.operand[i]) || MULT_P
> (recog_data.operand[i])
>                || MEM_P (recog_data.operand[i]))
> -       recog_data.operand[i] = walk_alter_subreg
> (recog_data.operand_loc[i], &changed);
> +       recog_data.operand[i]
> +         = walk_alter_subreg (recog_data.operand_loc[i], &changed);
>      }
>  
>    for (i = 0; i < recog_data.n_dups; i++)
> @@ -3077,10 +3078,11 @@ cleanup_subreg_operands (rtx_insn *insn)
>           *recog_data.dup_loc[i] = alter_subreg
> (recog_data.dup_loc[i], true);
>           changed = true;
>         }
> -      else if (GET_CODE (*recog_data.dup_loc[i]) == PLUS
> -              || GET_CODE (*recog_data.dup_loc[i]) == MULT
> +      else if (PLUS_P (*recog_data.dup_loc[i])
> +              || MULT_P (*recog_data.dup_loc[i])
>                || MEM_P (*recog_data.dup_loc[i]))
> -       *recog_data.dup_loc[i] = walk_alter_subreg
> (recog_data.dup_loc[i], &changed);
> +       *recog_data.dup_loc[i]
> +         = walk_alter_subreg (recog_data.dup_loc[i], &changed);
>      }
>    if (changed)
>      df_insn_rescan (insn);
> @@ -3252,9 +3254,9 @@ get_mem_expr_from_op (rtx op, int *paddressp)
>    /* First check if we have a decl for the address, then look at the
> right side
>       if it is a PLUS.  Otherwise, strip off arithmetic and keep
> looking.
>       But don't allow the address to itself be indirect.  */
> -  if ((expr = get_mem_expr_from_op (op, &inner_addressp)) && !
> inner_addressp)
> +  if ((expr = get_mem_expr_from_op (op, &inner_addressp)) &&
> !inner_addressp)
>      return expr;
> -  else if (GET_CODE (op) == PLUS
> +  else if (PLUS_P (op)
>            && (expr = get_mem_expr_from_op (XEXP (op, 1),
> &inner_addressp)))
>      return expr;
>  
> diff --git a/gcc/function.cc b/gcc/function.cc
> index 9c8773bbc59..8ab2f0e7f62 100644
> --- a/gcc/function.cc
> +++ b/gcc/function.cc
> @@ -757,10 +757,10 @@ find_temp_slot_from_address (rtx x)
>  
>    /* If we have a sum involving a register, see if it points to a
> temp
>       slot.  */
> -  if (GET_CODE (x) == PLUS && REG_P (XEXP (x, 0))
> +  if (PLUS_P (x) && REG_P (XEXP (x, 0))
>        && (p = find_temp_slot_from_address (XEXP (x, 0))) != 0)
>      return p;
> -  else if (GET_CODE (x) == PLUS && REG_P (XEXP (x, 1))
> +  else if (PLUS_P (x) && REG_P (XEXP (x, 1))
>            && (p = find_temp_slot_from_address (XEXP (x, 1))) != 0)
>      return p;
>  
> @@ -1614,8 +1614,7 @@ instantiate_virtual_regs_in_insn (rtx_insn
> *insn)
>        /* Handle a plus involving a virtual register by determining
> if the
>          operands remain valid if they're modified in place.  */
>        poly_int64 delta;
> -      if (GET_CODE (SET_SRC (set)) == PLUS
> -         && recog_data.n_operands >= 3
> +      if (PLUS_P (SET_SRC (set)) && recog_data.n_operands >= 3
>           && recog_data.operand_loc[1] == &XEXP (SET_SRC (set), 0)
>           && recog_data.operand_loc[2] == &XEXP (SET_SRC (set), 1)
>           && poly_int_rtx_p (recog_data.operand[2], &delta)
> diff --git a/gcc/fwprop.cc b/gcc/fwprop.cc
> index fc652ab9a1f..a905aff5f85 100644
> --- a/gcc/fwprop.cc
> +++ b/gcc/fwprop.cc
> @@ -120,7 +120,7 @@ can_simplify_addr (rtx addr)
>    if (CONSTANT_ADDRESS_P (addr))
>      return false;
>  
> -  if (GET_CODE (addr) == PLUS)
> +  if (PLUS_P (addr))
>      reg = XEXP (addr, 0);
>    else
>      reg = addr;
> diff --git a/gcc/haifa-sched.cc b/gcc/haifa-sched.cc
> index 4efaa94458d..0569a40fdf1 100644
> --- a/gcc/haifa-sched.cc
> +++ b/gcc/haifa-sched.cc
> @@ -378,12 +378,10 @@ static vec<rtx_insn *> scheduled_insns;
>  static int may_trap_exp (const_rtx, int);
>  
>  /* Nonzero iff the address is comprised from at most 1 register.  */
> -#define CONST_BASED_ADDRESS_P(x)                       \
> -  (REG_P (x)                                   \
> -   || ((GET_CODE (x) == PLUS || GET_CODE (x) == MINUS  \
> -       || (GET_CODE (x) == LO_SUM))                    \
> -       && (CONSTANT_P (XEXP (x, 0))                    \
> -          || CONSTANT_P (XEXP (x, 1)))))
> +#define
> CONST_BASED_ADDRESS_P(x)                                             
>   \
> +  (REG_P
> (x)                                                                  
> \
> +   || ((PLUS_P (x) || MINUS_P (x) || (GET_CODE (x) ==
> LO_SUM))                 \
> +       && (CONSTANT_P (XEXP (x, 0)) || CONSTANT_P (XEXP (x, 1)))))
>  
>  /* Returns a class that insn with GET_DEST(insn)=x may belong to,
>     as found by analyzing insn's expression.  */
> diff --git a/gcc/ifcvt.cc b/gcc/ifcvt.cc
> index eb8efb89a89..d63434c2453 100644
> --- a/gcc/ifcvt.cc
> +++ b/gcc/ifcvt.cc
> @@ -1360,16 +1360,14 @@ noce_try_store_flag_constants (struct
> noce_if_info *if_info)
>    rtx b = if_info->b;
>  
>    /* Handle cases like x := test ? y + 3 : y + 4.  */
> -  if (GET_CODE (a) == PLUS
> -      && GET_CODE (b) == PLUS
> -      && CONST_INT_P (XEXP (a, 1))
> +  if (PLUS_P (a) && PLUS_P (b) && CONST_INT_P (XEXP (a, 1))
>        && CONST_INT_P (XEXP (b, 1))
>        && rtx_equal_p (XEXP (a, 0), XEXP (b, 0))
>        /* Allow expressions that are not using the result or plain
> -         registers where we handle overlap below.  */
> +        registers where we handle overlap below.  */
>        && (REG_P (XEXP (a, 0))
>           || (noce_operand_ok (XEXP (a, 0))
> -             && ! reg_overlap_mentioned_p (if_info->x, XEXP (a,
> 0)))))
> +             && !reg_overlap_mentioned_p (if_info->x, XEXP (a,
> 0)))))
>      {
>        common = XEXP (a, 0);
>        a = XEXP (a, 1);
> @@ -1572,8 +1570,7 @@ noce_try_addcc (struct noce_if_info *if_info)
>    if (!noce_simple_bbs (if_info))
>      return FALSE;
>  
> -  if (GET_CODE (if_info->a) == PLUS
> -      && rtx_equal_p (XEXP (if_info->a, 0), if_info->b)
> +  if (PLUS_P (if_info->a) && rtx_equal_p (XEXP (if_info->a, 0),
> if_info->b)
>        && noce_reversed_cond_code (if_info) != UNKNOWN)
>      {
>        rtx cond = if_info->rev_cond;
> diff --git a/gcc/ira.cc b/gcc/ira.cc
> index d28a67b2546..e16867d4d17 100644
> --- a/gcc/ira.cc
> +++ b/gcc/ira.cc
> @@ -4163,10 +4163,10 @@ setup_reg_equiv (void)
>                 else if (function_invariant_p (x))
>                   {
>                     machine_mode mode;
> -                   
> +
>                     mode = GET_MODE (SET_DEST (set));
> -                   if (GET_CODE (x) == PLUS
> -                       || x == frame_pointer_rtx || x ==
> arg_pointer_rtx)
> +                   if (PLUS_P (x) || x == frame_pointer_rtx
> +                       || x == arg_pointer_rtx)
>                       /* This is PLUS of frame pointer and a
> constant,
>                          or fp, or argp.  */
>                       ira_reg_equiv[i].invariant = x;
> diff --git a/gcc/loop-doloop.cc b/gcc/loop-doloop.cc
> index 30b45c8071a..136776b430f 100644
> --- a/gcc/loop-doloop.cc
> +++ b/gcc/loop-doloop.cc
> @@ -204,52 +204,50 @@ doloop_condition_get (rtx_insn *doloop_pat)
>      return 0;
>  
>    if ((XEXP (condition, 0) == reg)
> -      /* For the third case:  */  
> -      || ((cc_reg != NULL_RTX)
> -         && (XEXP (condition, 0) == cc_reg)
> +      /* For the third case:  */
> +      || ((cc_reg != NULL_RTX) && (XEXP (condition, 0) == cc_reg)
>           && (reg_orig == reg))
> -      || (GET_CODE (XEXP (condition, 0)) == PLUS
> -         && XEXP (XEXP (condition, 0), 0) == reg))
> -   {
> -     if (GET_CODE (pattern) != PARALLEL)
> -     /*  For the second form we expect:
> +      || (PLUS_P (XEXP (condition, 0)) && XEXP (XEXP (condition, 0),
> 0) == reg))
> +    {
> +      if (GET_CODE (pattern) != PARALLEL)
> +       /*  For the second form we expect:
>  
> -         (set (reg) (plus (reg) (const_int -1))
> -         (set (pc) (if_then_else (reg != 0)
> -                                 (label_ref (label))
> -                                 (pc))).
> +           (set (reg) (plus (reg) (const_int -1))
> +           (set (pc) (if_then_else (reg != 0)
> +                                   (label_ref (label))
> +                                   (pc))).
>  
> -         is equivalent to the following:
> +           is equivalent to the following:
>  
> -         (parallel [(set (pc) (if_then_else (reg != 1)
> -                                            (label_ref (label))
> -                                            (pc)))
> -                     (set (reg) (plus (reg) (const_int -1)))
> -                     (additional clobbers and uses)])
> +           (parallel [(set (pc) (if_then_else (reg != 1)
> +                                              (label_ref (label))
> +                                              (pc)))
> +                       (set (reg) (plus (reg) (const_int -1)))
> +                       (additional clobbers and uses)])
>  
> -        For the third form we expect:
> +          For the third form we expect:
>  
> -        (parallel [(set (cc) (compare ((plus (reg) (const_int -1)),
> 0))
> -                   (set (reg) (plus (reg) (const_int -1)))])
> -        (set (pc) (if_then_else (cc == NE)
> -                                (label_ref (label))
> -                                (pc))) 
> +          (parallel [(set (cc) (compare ((plus (reg) (const_int -
> 1)), 0))
> +                     (set (reg) (plus (reg) (const_int -1)))])
> +          (set (pc) (if_then_else (cc == NE)
> +                                  (label_ref (label))
> +                                  (pc)))
>  
> -        which is equivalent to the following:
> +          which is equivalent to the following:
>  
> -        (parallel [(set (cc) (compare (reg,  1))
> -                   (set (reg) (plus (reg) (const_int -1)))
> -                   (set (pc) (if_then_else (NE == cc)
> -                                           (label_ref (label))
> -                                           (pc))))])
> +          (parallel [(set (cc) (compare (reg,  1))
> +                     (set (reg) (plus (reg) (const_int -1)))
> +                     (set (pc) (if_then_else (NE == cc)
> +                                             (label_ref (label))
> +                                             (pc))))])
>  
> -        So we return the second form instead for the two cases.
> +          So we return the second form instead for the two cases.
>  
> -     */
> +       */
>          condition = gen_rtx_fmt_ee (NE, VOIDmode, inc_src,
> const1_rtx);
>  
>      return condition;
> -   }
> +    }
>  
>    /* ??? If a machine uses a funny comparison, we could return a
>       canonicalized form here.  */
> @@ -417,7 +415,7 @@ doloop_simplify_count (class loop *loop,
> scalar_int_mode mode, rtx count)
>    if (GET_CODE (count) == ZERO_EXTEND)
>      {
>        rtx extop0 = XEXP (count, 0);
> -      if (GET_CODE (extop0) == PLUS)
> +      if (PLUS_P (extop0))
>         {
>           rtx addop0 = XEXP (extop0, 0);
>           rtx addop1 = XEXP (extop0, 1);
> @@ -471,10 +469,10 @@ doloop_modify (class loop *loop, class
> niter_desc *desc,
>    delete_insn (jump_insn);
>  
>    counter_reg = XEXP (condition, 0);
> -  if (GET_CODE (counter_reg) == PLUS)
> +  if (PLUS_P (counter_reg))
>      counter_reg = XEXP (counter_reg, 0);
>    /* These patterns must operate on integer counters.  */
> -  mode = as_a <scalar_int_mode> (GET_MODE (counter_reg));
> +  mode = as_a<scalar_int_mode> (GET_MODE (counter_reg));
>  
>    increment_count = false;
>    switch (GET_CODE (condition))
> diff --git a/gcc/loop-iv.cc b/gcc/loop-iv.cc
> index d639336445a..da685f15afc 100644
> --- a/gcc/loop-iv.cc
> +++ b/gcc/loop-iv.cc
> @@ -1543,35 +1543,26 @@ implies_p (rtx a, rtx b)
>      }
>  
>    /* A != N is equivalent to A - (N + 1) <u -1.  */
> -  if (GET_CODE (a) == NE
> -      && CONST_INT_P (op1)
> -      && GET_CODE (b) == LTU
> -      && opb1 == constm1_rtx
> -      && GET_CODE (opb0) == PLUS
> +  if (GET_CODE (a) == NE && CONST_INT_P (op1) && GET_CODE (b) == LTU
> +      && opb1 == constm1_rtx && PLUS_P (opb0)
>        && CONST_INT_P (XEXP (opb0, 1))
>        /* Avoid overflows.  */
>        && ((unsigned HOST_WIDE_INT) INTVAL (XEXP (opb0, 1))
> -         != ((unsigned HOST_WIDE_INT)1
> -             << (HOST_BITS_PER_WIDE_INT - 1)) - 1)
> +         != ((unsigned HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT -
> 1)) - 1)
>        && INTVAL (XEXP (opb0, 1)) + 1 == -INTVAL (op1))
>      return rtx_equal_p (op0, XEXP (opb0, 0));
>  
>    /* Likewise, A != N implies A - N > 0.  */
> -  if (GET_CODE (a) == NE
> -      && CONST_INT_P (op1))
> +  if (GET_CODE (a) == NE && CONST_INT_P (op1))
>      {
> -      if (GET_CODE (b) == GTU
> -         && GET_CODE (opb0) == PLUS
> -         && opb1 == const0_rtx
> +      if (GET_CODE (b) == GTU && PLUS_P (opb0) && opb1 == const0_rtx
>           && CONST_INT_P (XEXP (opb0, 1))
>           /* Avoid overflows.  */
>           && ((unsigned HOST_WIDE_INT) INTVAL (XEXP (opb0, 1))
>               != (HOST_WIDE_INT_1U << (HOST_BITS_PER_WIDE_INT - 1)))
>           && rtx_equal_p (XEXP (opb0, 0), op0))
>         return INTVAL (op1) == -INTVAL (XEXP (opb0, 1));
> -      if (GET_CODE (b) == GEU
> -         && GET_CODE (opb0) == PLUS
> -         && opb1 == const1_rtx
> +      if (GET_CODE (b) == GEU && PLUS_P (opb0) && opb1 == const1_rtx
>           && CONST_INT_P (XEXP (opb0, 1))
>           /* Avoid overflows.  */
>           && ((unsigned HOST_WIDE_INT) INTVAL (XEXP (opb0, 1))
> diff --git a/gcc/lra-constraints.cc b/gcc/lra-constraints.cc
> index d92ab76908c..c20407fceda 100644
> --- a/gcc/lra-constraints.cc
> +++ b/gcc/lra-constraints.cc
> @@ -608,7 +608,7 @@ canonicalize_reload_addr (rtx addr)
>    FOR_EACH_SUBRTX_VAR (iter, array, addr, NONCONST)
>      {
>        rtx x = *iter;
> -      if (GET_CODE (x) == MULT && CONST_INT_P (XEXP (x, 1)))
> +      if (MULT_P (x) && CONST_INT_P (XEXP (x, 1)))
>         {
>           const HOST_WIDE_INT ci = INTVAL (XEXP (x, 1));
>           const int pwr2 = exact_log2 (ci);
> @@ -1763,19 +1763,19 @@ simplify_operand_subreg (int nop,
> machine_mode reg_mode)
>    /* Force a reload of the SUBREG_REG if this is a constant or PLUS
> or
>       if there may be a problem accessing OPERAND in the outer
>       mode.  */
> -  if ((REG_P (reg)
> -       && REGNO (reg) >= FIRST_PSEUDO_REGISTER
> +  if ((REG_P (reg) && REGNO (reg) >= FIRST_PSEUDO_REGISTER
>         && (hard_regno = lra_get_regno_hard_regno (REGNO (reg))) >= 0
>         /* Don't reload paradoxical subregs because we could be
> looping
>           having repeatedly final regno out of hard regs range.  */
>         && (hard_regno_nregs (hard_regno, innermode)
>            >= hard_regno_nregs (hard_regno, mode))
> -       && simplify_subreg_regno (hard_regno, innermode,
> -                                SUBREG_BYTE (operand), mode) < 0
> +       && simplify_subreg_regno (hard_regno, innermode, SUBREG_BYTE
> (operand),
> +                                mode)
> +           < 0
>         /* Don't reload subreg for matching reload.  It is actually
>           valid subreg in LRA.  */
> -       && ! LRA_SUBREG_P (operand))
> -      || CONSTANT_P (reg) || GET_CODE (reg) == PLUS || MEM_P (reg))
> +       && !LRA_SUBREG_P (operand))
> +      || CONSTANT_P (reg) || PLUS_P (reg) || MEM_P (reg))
>      {
>        enum reg_class rclass;
>  
> @@ -3377,8 +3377,7 @@ equiv_address_substitution (struct address_info
> *ad)
>           *base_term = new_base_reg;
>           change_p = true;
>         }
> -      else if (GET_CODE (new_base_reg) == PLUS
> -              && REG_P (XEXP (new_base_reg, 0))
> +      else if (PLUS_P (new_base_reg) && REG_P (XEXP (new_base_reg,
> 0))
>                && poly_int_rtx_p (XEXP (new_base_reg, 1), &offset)
>                && can_add_disp_p (ad))
>         {
> @@ -3397,11 +3396,9 @@ equiv_address_substitution (struct
> address_info *ad)
>           *index_term = new_index_reg;
>           change_p = true;
>         }
> -      else if (GET_CODE (new_index_reg) == PLUS
> -              && REG_P (XEXP (new_index_reg, 0))
> +      else if (PLUS_P (new_index_reg) && REG_P (XEXP (new_index_reg,
> 0))
>                && poly_int_rtx_p (XEXP (new_index_reg, 1), &offset)
> -              && can_add_disp_p (ad)
> -              && (scale = get_index_scale (ad)))
> +              && can_add_disp_p (ad) && (scale = get_index_scale
> (ad)))
>         {
>           disp += offset * scale;
>           *index_term = XEXP (new_index_reg, 0);
> @@ -3720,11 +3717,9 @@ process_address_1 (int nop, bool check_only_p,
>        last_insn = get_last_insn ();
>        /* If we generated at least two insns, try last insn source as
>          an address.  If we succeed, we generate one less insn.  */
> -      if (REG_P (new_reg)
> -         && last_insn != insns
> +      if (REG_P (new_reg) && last_insn != insns
>           && (set = single_set (last_insn)) != NULL_RTX
> -         && GET_CODE (SET_SRC (set)) == PLUS
> -         && REG_P (XEXP (SET_SRC (set), 0))
> +         && PLUS_P (SET_SRC (set)) && REG_P (XEXP (SET_SRC (set),
> 0))
>           && CONSTANT_P (XEXP (SET_SRC (set), 1)))
>         {
>           *ad.inner = SET_SRC (set);
> @@ -3839,10 +3834,9 @@ emit_inc (enum reg_class new_rclass, rtx in,
> rtx value, poly_int64 inc_amount)
>  
>    if (GET_CODE (value) == PRE_MODIFY || GET_CODE (value) ==
> POST_MODIFY)
>      {
> -      lra_assert (GET_CODE (XEXP (value, 1)) == PLUS
> -                 || GET_CODE (XEXP (value, 1)) == MINUS);
> +      lra_assert (PLUS_P (XEXP (value, 1)) || MINUS_P (XEXP (value,
> 1)));
>        lra_assert (rtx_equal_p (XEXP (XEXP (value, 1), 0), XEXP
> (value, 0)));
> -      plus_p = GET_CODE (XEXP (value, 1)) == PLUS;
> +      plus_p = PLUS_P (XEXP (value, 1));
>        inc = XEXP (XEXP (value, 1), 1);
>      }
>    else
> diff --git a/gcc/lra-eliminations.cc b/gcc/lra-eliminations.cc
> index c630ff4af2d..ec81d272401 100644
> --- a/gcc/lra-eliminations.cc
> +++ b/gcc/lra-eliminations.cc
> @@ -213,13 +213,13 @@ form_sum (rtx x, rtx y)
>    else if (CONSTANT_P (x))
>      std::swap (x, y);
>  
> -  if (GET_CODE (x) == PLUS && CONSTANT_P (XEXP (x, 1)))
> +  if (PLUS_P (x) && CONSTANT_P (XEXP (x, 1)))
>      return form_sum (XEXP (x, 0), form_sum (XEXP (x, 1), y));
>  
>    /* Note that if the operands of Y are specified in the opposite
>       order in the recursive calls below, infinite recursion will
>       occur.  */
> -  if (GET_CODE (y) == PLUS && CONSTANT_P (XEXP (y, 1)))
> +  if (PLUS_P (y) && CONSTANT_P (XEXP (y, 1)))
>      return form_sum (form_sum (x, XEXP (y, 0)), XEXP (y, 1));
>  
>    /* If both constant, encapsulate sum.         Otherwise, just form
> sum.  A
> @@ -292,8 +292,7 @@ move_plus_up (rtx x)
>    subreg_reg = SUBREG_REG (x);
>    x_mode = GET_MODE (x);
>    subreg_reg_mode = GET_MODE (subreg_reg);
> -  if (!paradoxical_subreg_p (x)
> -      && GET_CODE (subreg_reg) == PLUS
> +  if (!paradoxical_subreg_p (x) && PLUS_P (subreg_reg)
>        && CONSTANT_P (XEXP (subreg_reg, 1))
>        && GET_MODE_CLASS (x_mode) == MODE_INT
>        && GET_MODE_CLASS (subreg_reg_mode) == MODE_INT)
> @@ -570,8 +569,7 @@ lra_eliminate_regs_1 (rtx_insn *insn, rtx x,
> machine_mode mem_mode,
>          modified.  LRA has already make sure that this does not
>          happen. The only remaining case we need to consider here is
>          that the increment value may be an eliminable register.  */
> -      if (GET_CODE (XEXP (x, 1)) == PLUS
> -         && XEXP (XEXP (x, 1), 0) == XEXP (x, 0))
> +      if (PLUS_P (XEXP (x, 1)) && XEXP (XEXP (x, 1), 0) == XEXP (x,
> 0))
>         {
>           rtx new_rtx = lra_eliminate_regs_1 (insn, XEXP (XEXP (x,
> 1), 1),
>                                               mem_mode, subst_p,
> update_p,
> @@ -744,8 +742,7 @@ mark_not_eliminable (rtx x, machine_mode
> mem_mode)
>      case PRE_MODIFY:
>        if (XEXP (x, 0) == stack_pointer_rtx
>           && ((code != PRE_MODIFY && code != POST_MODIFY)
> -             || (GET_CODE (XEXP (x, 1)) == PLUS
> -                 && XEXP (x, 0) == XEXP (XEXP (x, 1), 0)
> +             || (PLUS_P (XEXP (x, 1)) && XEXP (x, 0) == XEXP (XEXP
> (x, 1), 0)
>                   && poly_int_rtx_p (XEXP (XEXP (x, 1), 1),
> &offset))))
>         {
>           poly_int64 size = GET_MODE_SIZE (mem_mode);
> @@ -807,8 +804,7 @@ mark_not_eliminable (rtx x, machine_mode
> mem_mode)
>        return;
>  
>      case SET:
> -      if (SET_DEST (x) == stack_pointer_rtx
> -         && GET_CODE (SET_SRC (x)) == PLUS
> +      if (SET_DEST (x) == stack_pointer_rtx && PLUS_P (SET_SRC (x))
>           && XEXP (SET_SRC (x), 0) == SET_DEST (x)
>           && poly_int_rtx_p (XEXP (SET_SRC (x), 1), &offset))
>         {
> @@ -909,7 +905,7 @@ eliminate_regs_in_insn (rtx_insn *insn, bool
> replace_p, bool first_p,
>    poly_int64 offset = 0;
>    if (old_set && REG_P (SET_DEST (old_set)))
>      {
> -      if (GET_CODE (SET_SRC (old_set)) == PLUS)
> +      if (PLUS_P (SET_SRC (old_set)))
>         plus_src = SET_SRC (old_set);
>        /* First see if the source is of the form (plus (...) CST). 
> */
>        if (plus_src && poly_int_rtx_p (XEXP (plus_src, 1), &offset))
> @@ -1042,12 +1038,11 @@ eliminate_regs_in_insn (rtx_insn *insn, bool
> replace_p, bool first_p,
>       after all reloads calculating its offset.  This permits to keep
> register
>       pressure under control and helps to avoid LRA cycling in
> patalogical
>       cases.  */
> -  if (! replace_p && (set = single_set (insn)) != NULL
> -      && GET_CODE (SET_SRC (set)) == PLUS
> -      && GET_CODE (XEXP (SET_SRC (set), 0)) == PLUS)
> +  if (!replace_p && (set = single_set (insn)) != NULL && PLUS_P
> (SET_SRC (set))
> +      && PLUS_P (XEXP (SET_SRC (set), 0)))
>      {
>        rtx reg1, reg2, op1, op2;
> -      
> +
>        reg1 = op1 = XEXP (XEXP (SET_SRC (set), 0), 0);
>        reg2 = op2 = XEXP (SET_SRC (set), 1);
>        if (GET_CODE (reg1) == SUBREG)
> diff --git a/gcc/lra.cc b/gcc/lra.cc
> index 1444cb75914..cf0edd8b487 100644
> --- a/gcc/lra.cc
> +++ b/gcc/lra.cc
> @@ -355,7 +355,7 @@ lra_emit_add (rtx x, rtx y, rtx z)
>    else
>      {
>        disp = a2 = NULL_RTX;
> -      if (GET_CODE (y) == PLUS)
> +      if (PLUS_P (y))
>         {
>           a1 = XEXP (y, 0);
>           a2 = XEXP (y, 1);
> @@ -370,14 +370,14 @@ lra_emit_add (rtx x, rtx y, rtx z)
>             a2 = z;
>         }
>        index_scale = scale = NULL_RTX;
> -      if (GET_CODE (a1) == MULT)
> +      if (MULT_P (a1))
>         {
>           index_scale = a1;
>           index = XEXP (a1, 0);
>           scale = XEXP (a1, 1);
>           base = a2;
>         }
> -      else if (a2 != NULL_RTX && GET_CODE (a2) == MULT)
> +      else if (a2 != NULL_RTX && MULT_P (a2))
>         {
>           index_scale = a2;
>           index = XEXP (a2, 0);
> diff --git a/gcc/modulo-sched.cc b/gcc/modulo-sched.cc
> index 162de199da6..95f6f805e9e 100644
> --- a/gcc/modulo-sched.cc
> +++ b/gcc/modulo-sched.cc
> @@ -354,7 +354,7 @@ doloop_register_get (rtx_insn *head, rtx_insn
> *tail)
>  
>    if (REG_P (XEXP (condition, 0)))
>      reg = XEXP (condition, 0);
> -  else if (GET_CODE (XEXP (condition, 0)) == PLUS
> +  else if (PLUS_P (XEXP (condition, 0))
>            && REG_P (XEXP (XEXP (condition, 0), 0)))
>      reg = XEXP (XEXP (condition, 0), 0);
>    else
> diff --git a/gcc/postreload.cc b/gcc/postreload.cc
> index 41f61d32648..c1b2a837066 100644
> --- a/gcc/postreload.cc
> +++ b/gcc/postreload.cc
> @@ -89,9 +89,8 @@ reload_cse_simplify (rtx_insn *insn, rtx testreg)
>    /* Remember if this insn has been sp += const_int.  */
>    rtx sp_set = set_for_reg_notes (insn);
>    rtx sp_addend = NULL_RTX;
> -  if (sp_set
> -      && SET_DEST (sp_set) == stack_pointer_rtx
> -      && GET_CODE (SET_SRC (sp_set)) == PLUS
> +  if (sp_set && SET_DEST (sp_set) == stack_pointer_rtx
> +      && PLUS_P (SET_SRC (sp_set))
>        && XEXP (SET_SRC (sp_set), 0) == stack_pointer_rtx
>        && CONST_INT_P (XEXP (SET_SRC (sp_set), 1)))
>      sp_addend = XEXP (SET_SRC (sp_set), 1);
> @@ -897,9 +896,7 @@ try_replace_in_use (struct reg_use *use, rtx reg,
> rtx src)
>    else
>      {
>        rtx new_set = single_set (use_insn);
> -      if (new_set
> -         && REG_P (SET_DEST (new_set))
> -         && GET_CODE (SET_SRC (new_set)) == PLUS
> +      if (new_set && REG_P (SET_DEST (new_set)) && PLUS_P (SET_SRC
> (new_set))
>           && REG_P (XEXP (SET_SRC (new_set), 0))
>           && CONSTANT_P (XEXP (SET_SRC (new_set), 1)))
>         {
> @@ -1110,11 +1107,8 @@ reload_combine_recognize_pattern (rtx_insn
> *insn)
>       Also, explicitly check that REGX != REGY; our life information
>       does not yet show whether REGY changes in this insn.  */
>  
> -  if (GET_CODE (src) == PLUS
> -      && reg_state[regno].all_offsets_match
> -      && last_index_reg != -1
> -      && REG_P (XEXP (src, 1))
> -      && rtx_equal_p (XEXP (src, 0), reg)
> +  if (PLUS_P (src) && reg_state[regno].all_offsets_match &&
> last_index_reg != -1
> +      && REG_P (XEXP (src, 1)) && rtx_equal_p (XEXP (src, 0), reg)
>        && !rtx_equal_p (XEXP (src, 1), reg)
>        && last_label_ruid < reg_state[regno].use_ruid)
>      {
> @@ -1987,9 +1981,7 @@ reload_cse_move2add (rtx_insn *first)
>                   rtx set = NULL_RTX;
>                   if (next)
>                     set = single_set (next);
> -                 if (set
> -                     && SET_DEST (set) == reg
> -                     && GET_CODE (SET_SRC (set)) == PLUS
> +                 if (set && SET_DEST (set) == reg && PLUS_P (SET_SRC
> (set))
>                       && XEXP (SET_SRC (set), 0) == reg
>                       && CONST_INT_P (XEXP (SET_SRC (set), 1)))
>                     {
> @@ -2052,8 +2044,7 @@ reload_cse_move2add (rtx_insn *first)
>              ...
>              (set (REGY) (CONST (PLUS (REGX) (CONST_INT B-A))))  */
>           if ((GET_CODE (src) == SYMBOL_REF
> -              || (GET_CODE (src) == CONST
> -                  && GET_CODE (XEXP (src, 0)) == PLUS
> +              || (GET_CODE (src) == CONST && PLUS_P (XEXP (src, 0))
>                    && GET_CODE (XEXP (XEXP (src, 0), 0)) ==
> SYMBOL_REF
>                    && CONST_INT_P (XEXP (XEXP (src, 0), 1))))
>               && dbg_cnt (cse2_move2add))
> @@ -2193,7 +2184,7 @@ move2add_note_store (rtx dst, const_rtx set,
> void *data)
>           off = const0_rtx;
>         }
>        else if (note && GET_CODE (XEXP (note, 0)) == CONST
> -              && GET_CODE (XEXP (XEXP (note, 0), 0)) == PLUS
> +              && PLUS_P (XEXP (XEXP (note, 0), 0))
>                && GET_CODE (XEXP (XEXP (XEXP (note, 0), 0), 0)) ==
> SYMBOL_REF
>                && CONST_INT_P (XEXP (XEXP (XEXP (note, 0), 0), 1)))
>         {
> diff --git a/gcc/reginfo.cc b/gcc/reginfo.cc
> index 705779d5c18..92614074676 100644
> --- a/gcc/reginfo.cc
> +++ b/gcc/reginfo.cc
> @@ -1080,12 +1080,9 @@ reg_scan_mark_refs (rtx x, rtx_insn *insn)
>              optimizations).  So only set REG_POINTER on the
> destination
>              pseudo if this is the only set of that pseudo.  */
>           && DF_REG_DEF_COUNT (REGNO (SET_DEST (x))) == 1
> -         && ! REG_USERVAR_P (SET_DEST (x))
> -         && ! REG_POINTER (SET_DEST (x))
> -         && ((REG_P (SET_SRC (x))
> -              && REG_POINTER (SET_SRC (x)))
> -             || ((GET_CODE (SET_SRC (x)) == PLUS
> -                  || GET_CODE (SET_SRC (x)) == LO_SUM)
> +         && !REG_USERVAR_P (SET_DEST (x)) && !REG_POINTER (SET_DEST
> (x))
> +         && ((REG_P (SET_SRC (x)) && REG_POINTER (SET_SRC (x)))
> +             || ((PLUS_P (SET_SRC (x)) || GET_CODE (SET_SRC (x)) ==
> LO_SUM)
>                   && CONST_INT_P (XEXP (SET_SRC (x), 1))
>                   && REG_P (XEXP (SET_SRC (x), 0))
>                   && REG_POINTER (XEXP (SET_SRC (x), 0)))
> @@ -1096,8 +1093,7 @@ reg_scan_mark_refs (rtx x, rtx_insn *insn)
>                   && (GET_CODE (XEXP (SET_SRC (x), 0)) == CONST
>                       || GET_CODE (XEXP (SET_SRC (x), 0)) ==
> SYMBOL_REF
>                       || GET_CODE (XEXP (SET_SRC (x), 0)) ==
> LABEL_REF))
> -             || ((GET_CODE (SET_SRC (x)) == PLUS
> -                  || GET_CODE (SET_SRC (x)) == LO_SUM)
> +             || ((PLUS_P (SET_SRC (x)) || GET_CODE (SET_SRC (x)) ==
> LO_SUM)
>                   && (GET_CODE (XEXP (SET_SRC (x), 1)) == CONST
>                       || GET_CODE (XEXP (SET_SRC (x), 1)) ==
> SYMBOL_REF
>                       || GET_CODE (XEXP (SET_SRC (x), 1)) ==
> LABEL_REF))
> diff --git a/gcc/reload.cc b/gcc/reload.cc
> index 3ed901e3944..f7659c2d43e 100644
> --- a/gcc/reload.cc
> +++ b/gcc/reload.cc
> @@ -846,7 +846,7 @@ reload_inner_reg_of_subreg (rtx x, machine_mode
> mode, bool output)
>    inner = SUBREG_REG (x);
>  
>    /* If INNER is a constant or PLUS, then INNER will need
> reloading.  */
> -  if (CONSTANT_P (inner) || GET_CODE (inner) == PLUS)
> +  if (CONSTANT_P (inner) || PLUS_P (inner))
>      return true;
>  
>    /* If INNER is not a hard register, then INNER will not need
> reloading.  */
> @@ -1058,33 +1058,30 @@ push_reload (rtx in, rtx out, rtx *inloc, rtx
> *outloc,
>  
>    scalar_int_mode inner_mode;
>    if (in != 0 && GET_CODE (in) == SUBREG
> -      && targetm.can_change_mode_class (GET_MODE (SUBREG_REG (in)),
> -                                       inmode, rclass)
> +      && targetm.can_change_mode_class (GET_MODE (SUBREG_REG (in)),
> inmode,
> +                                       rclass)
>        && contains_allocatable_reg_of_mode[rclass][GET_MODE
> (SUBREG_REG (in))]
>        && (strict_low
>           || (subreg_lowpart_p (in)
> -             && (CONSTANT_P (SUBREG_REG (in))
> -                 || GET_CODE (SUBREG_REG (in)) == PLUS
> +             && (CONSTANT_P (SUBREG_REG (in)) || PLUS_P (SUBREG_REG
> (in))
>                   || (((REG_P (SUBREG_REG (in))
>                         && REGNO (SUBREG_REG (in)) >=
> FIRST_PSEUDO_REGISTER)
>                        || MEM_P (SUBREG_REG (in)))
>                       && (paradoxical_subreg_p (inmode,
>                                                 GET_MODE (SUBREG_REG
> (in)))
>                           || (known_le (GET_MODE_SIZE (inmode),
> UNITS_PER_WORD)
> -                             && is_a <scalar_int_mode> (GET_MODE
> (SUBREG_REG
> -                                                                 
> (in)),
> -                                                        &inner_mode)
> +                             && is_a<scalar_int_mode> (
> +                               GET_MODE (SUBREG_REG (in)),
> &inner_mode)
>                               && GET_MODE_SIZE (inner_mode) <=
> UNITS_PER_WORD
>                               && paradoxical_subreg_p (inmode,
> inner_mode)
>                               && LOAD_EXTEND_OP (inner_mode) !=
> UNKNOWN)
>                           || (WORD_REGISTER_OPERATIONS
>                               && partial_subreg_p (inmode,
>                                                    GET_MODE
> (SUBREG_REG (in)))
> -                             && (known_equal_after_align_down
> -                                 (GET_MODE_SIZE (inmode) - 1,
> -                                  GET_MODE_SIZE (GET_MODE
> (SUBREG_REG
> -                                                           (in))) -
> 1,
> -                                  UNITS_PER_WORD)))))
> +                             && (known_equal_after_align_down (
> +                               GET_MODE_SIZE (inmode) - 1,
> +                               GET_MODE_SIZE (GET_MODE (SUBREG_REG
> (in))) - 1,
> +                               UNITS_PER_WORD)))))
>                   || (REG_P (SUBREG_REG (in))
>                       && REGNO (SUBREG_REG (in)) <
> FIRST_PSEUDO_REGISTER
>                       /* The case where out is nonzero
> @@ -1106,9 +1103,9 @@ push_reload (rtx in, rtx out, rtx *inloc, rtx
> *outloc,
>           || (REG_P (SUBREG_REG (in))
>               && REGNO (SUBREG_REG (in)) >= FIRST_PSEUDO_REGISTER
>               && reg_equiv_mem (REGNO (SUBREG_REG (in)))
> -             && (mode_dependent_address_p
> -                 (XEXP (reg_equiv_mem (REGNO (SUBREG_REG (in))), 0),
> -                  MEM_ADDR_SPACE (reg_equiv_mem (REGNO (SUBREG_REG
> (in)))))))))
> +             && (mode_dependent_address_p (
> +               XEXP (reg_equiv_mem (REGNO (SUBREG_REG (in))), 0),
> +               MEM_ADDR_SPACE (reg_equiv_mem (REGNO (SUBREG_REG
> (in)))))))))
>      {
>  #ifdef LIMIT_RELOAD_CLASS
>        in_subreg_loc = inloc;
> @@ -1146,11 +1143,9 @@ push_reload (rtx in, rtx out, rtx *inloc, rtx
> *outloc,
>                                                    SUBREG_BYTE (in),
>                                                    GET_MODE (in)),
>                               REGNO (SUBREG_REG (in)));
> -      else if (CONSTANT_P (SUBREG_REG (in))
> -               || GET_CODE (SUBREG_REG (in)) == PLUS)
> -       subreg_in_class = find_valid_class_1 (inmode,
> -                                             GET_MODE (SUBREG_REG
> (in)),
> -                                             rclass);
> +      else if (CONSTANT_P (SUBREG_REG (in)) || PLUS_P (SUBREG_REG
> (in)))
> +       subreg_in_class
> +         = find_valid_class_1 (inmode, GET_MODE (SUBREG_REG (in)),
> rclass);
>  
>        /* This relies on the fact that emit_reload_insns outputs the
>          instructions for input reloads of type RELOAD_OTHER in the
> same
> @@ -1244,7 +1239,7 @@ push_reload (rtx in, rtx out, rtx *inloc, rtx
> *outloc,
>  
>    /* If IN appears in OUT, we can't share any input-only reload for
> IN.  */
>    if (in != 0 && out != 0 && MEM_P (out)
> -      && (REG_P (in) || MEM_P (in) || GET_CODE (in) == PLUS)
> +      && (REG_P (in) || MEM_P (in) || PLUS_P (in))
>        && reg_overlap_mentioned_for_reload_p (in, XEXP (out, 0)))
>      dont_share = 1;
>  
> @@ -2399,7 +2394,7 @@ decompose (rtx x)
>  
>         if (GET_CODE (addr) == PRE_MODIFY || GET_CODE (addr) ==
> POST_MODIFY)
>           {
> -           if (GET_CODE (XEXP (addr, 1)) == PLUS
> +           if (PLUS_P (XEXP (addr, 1))
>                 && XEXP (addr, 0) == XEXP (XEXP (addr, 1), 0)
>                 && CONSTANT_P (XEXP (XEXP (addr, 1), 1)))
>               {
> @@ -2416,7 +2411,7 @@ decompose (rtx x)
>             addr = XEXP (addr, 0);
>             all_const = 1;
>           }
> -       if (GET_CODE (addr) == PLUS)
> +       if (PLUS_P (addr))
>           {
>             if (CONSTANT_P (XEXP (addr, 0)))
>               {
> @@ -2437,7 +2432,7 @@ decompose (rtx x)
>           }
>         if (GET_CODE (offset) == CONST)
>           offset = XEXP (offset, 0);
> -       if (GET_CODE (offset) == PLUS)
> +       if (PLUS_P (offset))
>           {
>             if (CONST_INT_P (XEXP (offset, 0)))
>               {
> @@ -2461,7 +2456,7 @@ decompose (rtx x)
>             offset = const0_rtx;
>           }
>  
> -       if (all_const && GET_CODE (base) == PLUS)
> +       if (all_const && PLUS_P (base))
>           base = gen_rtx_CONST (GET_MODE (base), base);
>  
>         gcc_assert (CONST_INT_P (offset));
> @@ -2849,9 +2844,9 @@ find_reloads (rtx_insn *insn, int replace, int
> ind_levels, int live_known,
>              PLUS or MULT or ASHIFT, re-recognize and try again.  */
>           if ((OBJECT_P (*recog_data.operand_loc[i])
>                || GET_CODE (*recog_data.operand_loc[i]) == SUBREG)
> -             && (GET_CODE (recog_data.operand[i]) == MULT
> +             && (MULT_P (recog_data.operand[i])
>                   || GET_CODE (recog_data.operand[i]) == ASHIFT
> -                 || GET_CODE (recog_data.operand[i]) == PLUS))
> +                 || PLUS_P (recog_data.operand[i])))
>             {
>               INSN_CODE (insn) = -1;
>               retval = find_reloads (insn, replace, ind_levels,
> live_known,
> @@ -3110,7 +3105,7 @@ find_reloads (rtx_insn *insn, int replace, int
> ind_levels, int live_known,
>                      be a problem accessing OPERAND in the outer
> mode.  */
>                   scalar_int_mode inner_mode;
>                   if (CONSTANT_P (operand)
> -                     || GET_CODE (operand) == PLUS
> +                     || PLUS_P (operand)
>                       /* We must force a reload of paradoxical
> SUBREGs
>                          of a MEM because the alignment of the inner
> value
>                          may not be enough to do the outer
> reference.  On
> @@ -3118,14 +3113,14 @@ find_reloads (rtx_insn *insn, int replace,
> int ind_levels, int live_known,
>                          the object.
>  
>                          On machines that extend byte operations and
> we have a
> -                        SUBREG where both the inner and outer modes
> are no wider
> -                        than a word and the inner mode is narrower,
> is integral,
> -                        and gets extended when loaded from memory,
> combine.cc has
> -                        made assumptions about the behavior of the
> machine in such
> -                        register access.  If the data is, in fact,
> in memory we
> -                        must always load using the size assumed to
> be in the
> -                        register and let the insn do the different-
> sized
> -                        accesses.
> +                        SUBREG where both the inner and outer modes
> are no
> +                        wider than a word and the inner mode is
> narrower, is
> +                        integral, and gets extended when loaded from
> memory,
> +                        combine.cc has made assumptions about the
> behavior of
> +                        the machine in such register access.  If the
> data is,
> +                        in fact, in memory we must always load using
> the size
> +                        assumed to be in the register and let the
> insn do the
> +                        different-sized accesses.
>  
>                          This is doubly true if
> WORD_REGISTER_OPERATIONS.  In
>                          this case eliminate_regs has left non-
> paradoxical
> @@ -3139,16 +3134,16 @@ find_reloads (rtx_insn *insn, int replace,
> int ind_levels, int live_known,
>                            || (REG_P (operand)
>                                && REGNO (operand) >=
> FIRST_PSEUDO_REGISTER))
>                           && (WORD_REGISTER_OPERATIONS
> -                             || (((maybe_lt
> -                                   (GET_MODE_BITSIZE (GET_MODE
> (operand)),
> -                                    BIGGEST_ALIGNMENT))
> -                                  && (paradoxical_subreg_p
> -                                      (operand_mode[i], GET_MODE
> (operand)))))
> +                             || (((maybe_lt (GET_MODE_BITSIZE (
> +                                               GET_MODE (operand)),
> +                                             BIGGEST_ALIGNMENT))
> +                                  && (paradoxical_subreg_p (
> +                                    operand_mode[i], GET_MODE
> (operand)))))
>                               || BYTES_BIG_ENDIAN
>                               || (known_le (GET_MODE_SIZE
> (operand_mode[i]),
>                                             UNITS_PER_WORD)
> -                                 && (is_a <scalar_int_mode>
> -                                     (GET_MODE (operand),
> &inner_mode))
> +                                 && (is_a<scalar_int_mode> (GET_MODE
> (operand),
> +                                                           
> &inner_mode))
>                                   && (GET_MODE_SIZE (inner_mode)
>                                       <= UNITS_PER_WORD)
>                                   && paradoxical_subreg_p
> (operand_mode[i],
> @@ -3163,11 +3158,10 @@ find_reloads (rtx_insn *insn, int replace,
> int ind_levels, int live_known,
>                       || (REG_P (operand)
>                           && REGNO (operand) >= FIRST_PSEUDO_REGISTER
>                           && reg_equiv_mem (REGNO (operand))
> -                         && (mode_dependent_address_p
> -                             (XEXP (reg_equiv_mem (REGNO (operand)),
> 0),
> -                              (MEM_ADDR_SPACE
> -                               (reg_equiv_mem (REGNO (operand)))))))
> -                     )
> +                         && (mode_dependent_address_p (
> +                           XEXP (reg_equiv_mem (REGNO (operand)),
> 0),
> +                           (MEM_ADDR_SPACE (
> +                             reg_equiv_mem (REGNO (operand))))))))
>                     force_reload = 1;
>                 }
>  
> @@ -3944,7 +3938,7 @@ find_reloads (rtx_insn *insn, int replace, int
> ind_levels, int live_known,
>             mode = GET_MODE (op);
>           }
>  
> -       if (GET_CODE (op) == PLUS)
> +       if (PLUS_P (op))
>           {
>             plus = op;
>             op = XEXP (op, 1);
> @@ -4927,7 +4921,7 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>               if (ind_levels > 0
>                   && strict_memory_address_addr_space_p (mode, tem,
> as)
>                   && (REG_P (XEXP (tem, 0))
> -                     || (GET_CODE (XEXP (tem, 0)) == PLUS
> +                     || (PLUS_P (XEXP (tem, 0))
>                           && REG_P (XEXP (XEXP (tem, 0), 0))
>                           && CONSTANT_P (XEXP (XEXP (tem, 0), 1)))))
>                 {
> @@ -4980,9 +4974,7 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>          So do a tree-walk to find and eliminate all such regs.  */
>  
>        /* But first quickly dispose of a common case.  */
> -      if (GET_CODE (ad) == PLUS
> -         && CONST_INT_P (XEXP (ad, 1))
> -         && REG_P (XEXP (ad, 0))
> +      if (PLUS_P (ad) && CONST_INT_P (XEXP (ad, 1)) && REG_P (XEXP
> (ad, 0))
>           && reg_equiv_constant (REGNO (XEXP (ad, 0))) == 0)
>         return 0;
>  
> @@ -5056,12 +5048,11 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>          taken care of above.  */
>  
>        if (ind_levels == 0
> -         || (GET_CODE (XEXP (tem, 0)) == SYMBOL_REF && !
> indirect_symref_ok)
> +         || (GET_CODE (XEXP (tem, 0)) == SYMBOL_REF &&
> !indirect_symref_ok)
>           || MEM_P (XEXP (tem, 0))
> -         || ! (REG_P (XEXP (tem, 0))
> -               || (GET_CODE (XEXP (tem, 0)) == PLUS
> -                   && REG_P (XEXP (XEXP (tem, 0), 0))
> -                   && CONST_INT_P (XEXP (XEXP (tem, 0), 1)))))
> +         || !(REG_P (XEXP (tem, 0))
> +              || (PLUS_P (XEXP (tem, 0)) && REG_P (XEXP (XEXP (tem,
> 0), 0))
> +                  && CONST_INT_P (XEXP (XEXP (tem, 0), 1)))))
>         {
>           /* Must use TEM here, not AD, since it is the one that will
>              have any subexpressions reloaded, if needed.  */
> @@ -5080,8 +5071,7 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>       Handle all base registers here, not just fp/ap/sp, because on
> some
>       targets (namely SH) we can also get too large displacements
> from
>       big-endian corrections.  */
> -  else if (GET_CODE (ad) == PLUS
> -          && REG_P (XEXP (ad, 0))
> +  else if (PLUS_P (ad) && REG_P (XEXP (ad, 0))
>            && REGNO (XEXP (ad, 0)) < FIRST_PSEUDO_REGISTER
>            && CONST_INT_P (XEXP (ad, 1))
>            && (regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode, as,
> PLUS,
> @@ -5089,8 +5079,8 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>                /* Similarly, if we were to reload the base register
> and the
>                   mem+offset address is still invalid, then we want
> to reload
>                   the whole address, not just the base register.  */
> -              || ! maybe_memory_address_addr_space_p
> -                    (mode, ad, as, &(XEXP (ad, 0)))))
> +              || !maybe_memory_address_addr_space_p (mode, ad, as,
> +                                                     &(XEXP (ad,
> 0)))))
>  
>      {
>        /* Unshare the MEM rtx so we can safely alter it.  */
> @@ -5160,11 +5150,10 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>        enum rtx_code inner_code;
>  
>        if (GET_CODE (ad) != PLUS)
> -         continue;
> +       continue;
>  
>        inner_code = GET_CODE (XEXP (ad, 0));
> -      if (!(GET_CODE (ad) == PLUS
> -           && CONST_INT_P (XEXP (ad, 1))
> +      if (!(PLUS_P (ad) && CONST_INT_P (XEXP (ad, 1))
>             && (inner_code == PLUS || inner_code == LO_SUM)))
>         continue;
>  
> @@ -5188,11 +5177,11 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>           rtx offset_reg;
>           enum reg_class cls;
>  
> -         offset_reg = plus_constant (GET_MODE (ad), operand,
> -                                     INTVAL (XEXP (ad, 1)));
> +         offset_reg
> +           = plus_constant (GET_MODE (ad), operand, INTVAL (XEXP
> (ad, 1)));
>  
>           /* Form the adjusted address.  */
> -         if (GET_CODE (XEXP (ad, 0)) == PLUS)
> +         if (PLUS_P (XEXP (ad, 0)))
>             ad = gen_rtx_PLUS (GET_MODE (ad),
>                                op_index == 0 ? offset_reg : addend,
>                                op_index == 0 ? addend : offset_reg);
> @@ -5220,7 +5209,7 @@ find_reloads_address (machine_mode mode, rtx
> *memrefloc, rtx ad,
>       in a sum is replaced.  */
>  
>    tem = ad;
> -  if (GET_CODE (ad) == PLUS)
> +  if (PLUS_P (ad))
>      tem = subst_indexed_address (ad);
>    if (tem != ad && strict_memory_address_addr_space_p (mode, tem,
> as))
>      {
> @@ -5358,12 +5347,12 @@ form_sum (machine_mode mode, rtx x, rtx y)
>    else if (CONSTANT_P (x))
>      tem = x, x = y, y = tem;
>  
> -  if (GET_CODE (x) == PLUS && CONSTANT_P (XEXP (x, 1)))
> +  if (PLUS_P (x) && CONSTANT_P (XEXP (x, 1)))
>      return form_sum (mode, XEXP (x, 0), form_sum (mode, XEXP (x, 1),
> y));
>  
>    /* Note that if the operands of Y are specified in the opposite
>       order in the recursive calls below, infinite recursion will
> occur.  */
> -  if (GET_CODE (y) == PLUS && CONSTANT_P (XEXP (y, 1)))
> +  if (PLUS_P (y) && CONSTANT_P (XEXP (y, 1)))
>      return form_sum (mode, form_sum (mode, x, XEXP (y, 0)), XEXP (y,
> 1));
>  
>    /* If both constant, encapsulate sum.  Otherwise, just form sum. 
> A
> @@ -5400,7 +5389,7 @@ subst_indexed_address (rtx addr)
>    rtx tem;
>    int regno;
>  
> -  if (GET_CODE (addr) == PLUS)
> +  if (PLUS_P (addr))
>      {
>        /* Try to find a register to replace.  */
>        op0 = XEXP (addr, 0), op1 = XEXP (addr, 1), op2 = 0;
> @@ -5409,24 +5398,20 @@ subst_indexed_address (rtx addr)
>           && reg_renumber[regno] < 0
>           && reg_equiv_constant (regno) != 0)
>         op0 = reg_equiv_constant (regno);
> -      else if (REG_P (op1)
> -              && (regno = REGNO (op1)) >= FIRST_PSEUDO_REGISTER
> -              && reg_renumber[regno] < 0
> -              && reg_equiv_constant (regno) != 0)
> +      else if (REG_P (op1) && (regno = REGNO (op1)) >=
> FIRST_PSEUDO_REGISTER
> +              && reg_renumber[regno] < 0 && reg_equiv_constant
> (regno) != 0)
>         op1 = reg_equiv_constant (regno);
> -      else if (GET_CODE (op0) == PLUS
> -              && (tem = subst_indexed_address (op0)) != op0)
> +      else if (PLUS_P (op0) && (tem = subst_indexed_address (op0))
> != op0)
>         op0 = tem;
> -      else if (GET_CODE (op1) == PLUS
> -              && (tem = subst_indexed_address (op1)) != op1)
> +      else if (PLUS_P (op1) && (tem = subst_indexed_address (op1))
> != op1)
>         op1 = tem;
>        else
>         return addr;
>  
>        /* Pick out up to three things to add.  */
> -      if (GET_CODE (op1) == PLUS)
> +      if (PLUS_P (op1))
>         op2 = XEXP (op1, 1), op1 = XEXP (op1, 0);
> -      else if (GET_CODE (op0) == PLUS)
> +      else if (PLUS_P (op0))
>         op2 = op1, op1 = XEXP (op0, 1), op0 = XEXP (op0, 0);
>  
>        /* Compute the sum.  */
> @@ -5693,7 +5678,7 @@ find_reloads_address_1 (machine_mode mode,
> addr_space_t as,
>            conservative and class it as RELOAD_OTHER.  */
>         if ((REG_P (XEXP (op1, 1))
>              && !REGNO_OK_FOR_INDEX_P (REGNO (XEXP (op1, 1))))
> -           || GET_CODE (XEXP (op1, 1)) == PLUS)
> +           || PLUS_P (XEXP (op1, 1)))
>           find_reloads_address_1 (mode, as, XEXP (op1, 1), 1, code,
> SCRATCH,
>                                   &XEXP (op1, 1), opnum,
> RELOAD_OTHER,
>                                   ind_levels, insn);
> @@ -6092,15 +6077,14 @@ find_reloads_address_part (rtx x, rtx *loc,
> enum reg_class rclass,
>           || targetm.preferred_reload_class (x, rclass) == NO_REGS))
>      {
>        x = force_const_mem (mode, x);
> -      find_reloads_address (mode, &x, XEXP (x, 0), &XEXP (x, 0),
> -                           opnum, type, ind_levels, 0);
> +      find_reloads_address (mode, &x, XEXP (x, 0), &XEXP (x, 0),
> opnum, type,
> +                           ind_levels, 0);
>      }
>  
> -  else if (GET_CODE (x) == PLUS
> -          && CONSTANT_P (XEXP (x, 1))
> +  else if (PLUS_P (x) && CONSTANT_P (XEXP (x, 1))
>            && (!targetm.legitimate_constant_p (GET_MODE (x), XEXP (x,
> 1))
>                || targetm.preferred_reload_class (XEXP (x, 1),
> rclass)
> -                  == NO_REGS))
> +                   == NO_REGS))
>      {
>        rtx tem;
>  
> @@ -6395,8 +6379,7 @@ find_replacement (rtx *loc)
>  
>    /* If *LOC is a PLUS, MINUS, or MULT, see if a replacement is
> scheduled for
>       what's inside and make a new rtl if so.  */
> -  if (GET_CODE (*loc) == PLUS || GET_CODE (*loc) == MINUS
> -      || GET_CODE (*loc) == MULT)
> +  if (PLUS_P (*loc) || MINUS_P (*loc) || MULT_P (*loc))
>      {
>        rtx x = find_replacement (&XEXP (*loc, 0));
>        rtx y = find_replacement (&XEXP (*loc, 1));
> @@ -6590,7 +6573,7 @@ reg_overlap_mentioned_for_reload_p (rtx x, rtx
> in)
>      return reg_mentioned_p (x, in);
>    else
>      {
> -      gcc_assert (GET_CODE (x) == PLUS);
> +      gcc_assert (PLUS_P (x));
>  
>        /* We actually want to know if X is mentioned somewhere inside
> IN.
>          We must not say that (plus (sp) (const_int 124)) is in
> @@ -6601,7 +6584,7 @@ reg_overlap_mentioned_for_reload_p (rtx x, rtx
> in)
>         in = XEXP (in, 0);
>        if (REG_P (in))
>         return 0;
> -      else if (GET_CODE (in) == PLUS)
> +      else if (PLUS_P (in))
>         return (rtx_equal_p (x, in)
>                 || reg_overlap_mentioned_for_reload_p (x, XEXP (in,
> 0))
>                 || reg_overlap_mentioned_for_reload_p (x, XEXP (in,
> 1)));
> @@ -6710,12 +6693,10 @@ find_equiv_reg (rtx goal, rtx_insn *insn,
> enum reg_class rclass, int other,
>      }
>    else if (CONSTANT_P (goal))
>      goal_const = 1;
> -  else if (GET_CODE (goal) == PLUS
> -          && XEXP (goal, 0) == stack_pointer_rtx
> +  else if (PLUS_P (goal) && XEXP (goal, 0) == stack_pointer_rtx
>            && CONSTANT_P (XEXP (goal, 1)))
>      goal_const = need_stable_sp = 1;
> -  else if (GET_CODE (goal) == PLUS
> -          && XEXP (goal, 0) == frame_pointer_rtx
> +  else if (PLUS_P (goal) && XEXP (goal, 0) == frame_pointer_rtx
>            && CONSTANT_P (XEXP (goal, 1)))
>      goal_const = 1;
>    else
> @@ -7114,9 +7095,8 @@ find_inc_amount (rtx x, rtx inced)
>            || GET_CODE (addr) == POST_INC)
>           && XEXP (addr, 0) == inced)
>         return GET_MODE_SIZE (GET_MODE (x));
> -      else if ((GET_CODE (addr) == PRE_MODIFY
> -               || GET_CODE (addr) == POST_MODIFY)
> -              && GET_CODE (XEXP (addr, 1)) == PLUS
> +      else if ((GET_CODE (addr) == PRE_MODIFY || GET_CODE (addr) ==
> POST_MODIFY)
> +              && PLUS_P (XEXP (addr, 1))
>                && XEXP (addr, 0) == XEXP (XEXP (addr, 1), 0)
>                && XEXP (addr, 0) == inced
>                && CONST_INT_P (XEXP (XEXP (addr, 1), 1)))
> diff --git a/gcc/reload1.cc b/gcc/reload1.cc
> index 728dc2a1a5c..09feb77b215 100644
> --- a/gcc/reload1.cc
> +++ b/gcc/reload1.cc
> @@ -929,8 +929,7 @@ reload (rtx_insn *first, int global)
>             else if (CONSTANT_P (XEXP (x, 0))
>                      || (REG_P (XEXP (x, 0))
>                          && REGNO (XEXP (x, 0)) <
> FIRST_PSEUDO_REGISTER)
> -                    || (GET_CODE (XEXP (x, 0)) == PLUS
> -                        && REG_P (XEXP (XEXP (x, 0), 0))
> +                    || (PLUS_P (XEXP (x, 0)) && REG_P (XEXP (XEXP
> (x, 0), 0))
>                          && (REGNO (XEXP (XEXP (x, 0), 0))
>                              < FIRST_PSEUDO_REGISTER)
>                          && CONSTANT_P (XEXP (XEXP (x, 0), 1))))
> @@ -2643,13 +2642,12 @@ eliminate_regs_1 (rtx x, machine_mode
> mem_mode, rtx insn,
>                didn't get a hard register but has a
> reg_equiv_constant,
>                we must replace the constant here since it may no
> longer
>                be in the position of any operand.  */
> -           if (GET_CODE (new0) == PLUS && REG_P (new1)
> +           if (PLUS_P (new0) && REG_P (new1)
>                 && REGNO (new1) >= FIRST_PSEUDO_REGISTER
> -               && reg_renumber[REGNO (new1)] < 0
> -               && reg_equivs
> +               && reg_renumber[REGNO (new1)] < 0 && reg_equivs
>                 && reg_equiv_constant (REGNO (new1)) != 0)
>               new1 = reg_equiv_constant (REGNO (new1));
> -           else if (GET_CODE (new1) == PLUS && REG_P (new0)
> +           else if (PLUS_P (new1) && REG_P (new0)
>                      && REGNO (new0) >= FIRST_PSEUDO_REGISTER
>                      && reg_renumber[REGNO (new0)] < 0
>                      && reg_equiv_constant (REGNO (new0)) != 0)
> @@ -2774,11 +2772,10 @@ eliminate_regs_1 (rtx x, machine_mode
> mem_mode, rtx insn,
>          elimination_effects has already make sure that this does not
>          happen.  The only remaining case we need to consider here is
>          that the increment value may be an eliminable register.  */
> -      if (GET_CODE (XEXP (x, 1)) == PLUS
> -         && XEXP (XEXP (x, 1), 0) == XEXP (x, 0))
> +      if (PLUS_P (XEXP (x, 1)) && XEXP (XEXP (x, 1), 0) == XEXP (x,
> 0))
>         {
> -         rtx new_rtx = eliminate_regs_1 (XEXP (XEXP (x, 1), 1),
> mem_mode,
> -                                         insn, true, for_costs);
> +         rtx new_rtx = eliminate_regs_1 (XEXP (XEXP (x, 1), 1),
> mem_mode, insn,
> +                                         true, for_costs);
>  
>           if (new_rtx != XEXP (XEXP (x, 1), 1))
>             return gen_rtx_fmt_ee (code, GET_MODE (x), XEXP (x, 0),
> @@ -3021,8 +3018,7 @@ elimination_effects (rtx x, machine_mode
> mem_mode)
>               ep->offset -= size;
>             else if (code == PRE_MODIFY || code == POST_MODIFY)
>               {
> -               if (GET_CODE (XEXP (x, 1)) == PLUS
> -                   && XEXP (x, 0) == XEXP (XEXP (x, 1), 0)
> +               if (PLUS_P (XEXP (x, 1)) && XEXP (x, 0) == XEXP (XEXP
> (x, 1), 0)
>                     && CONST_INT_P (XEXP (XEXP (x, 1), 1)))
>                   ep->offset -= INTVAL (XEXP (XEXP (x, 1), 1));
>                 else
> @@ -3109,8 +3105,7 @@ elimination_effects (rtx x, machine_mode
> mem_mode)
>                    this elimination can't be done.  */
>                 rtx src = SET_SRC (x);
>  
> -               if (GET_CODE (src) == PLUS
> -                   && XEXP (src, 0) == SET_DEST (x)
> +               if (PLUS_P (src) && XEXP (src, 0) == SET_DEST (x)
>                     && CONST_INT_P (XEXP (src, 1)))
>                   ep->offset -= INTVAL (XEXP (src, 1));
>                 else
> @@ -3229,11 +3224,10 @@ eliminate_regs_in_insn (rtx_insn *insn, int
> replace)
>    plus_src = plus_cst_src = 0;
>    if (old_set && REG_P (SET_DEST (old_set)))
>      {
> -      if (GET_CODE (SET_SRC (old_set)) == PLUS)
> +      if (PLUS_P (SET_SRC (old_set)))
>         plus_src = SET_SRC (old_set);
>        /* First see if the source is of the form (plus (...) CST). 
> */
> -      if (plus_src
> -         && CONST_INT_P (XEXP (plus_src, 1)))
> +      if (plus_src && CONST_INT_P (XEXP (plus_src, 1)))
>         plus_cst_src = plus_src;
>        else if (REG_P (SET_SRC (old_set))
>                || plus_src)
> @@ -3245,7 +3239,7 @@ eliminate_regs_in_insn (rtx_insn *insn, int
> replace)
>             {
>               if ((REG_NOTE_KIND (links) == REG_EQUAL
>                    || REG_NOTE_KIND (links) == REG_EQUIV)
> -                 && GET_CODE (XEXP (links, 0)) == PLUS
> +                 && PLUS_P (XEXP (links, 0))
>                   && CONST_INT_P (XEXP (XEXP (links, 0), 1)))
>                 {
>                   plus_cst_src = XEXP (links, 0);
> @@ -3435,11 +3429,9 @@ eliminate_regs_in_insn (rtx_insn *insn, int
> replace)
>          hurt in this rare case.  */
>        /* ??? Why this huge if statement - why don't we just
> rerecognize the
>          thing always?  */
> -      if (! insn_is_asm
> -         && old_set != 0
> +      if (!insn_is_asm && old_set != 0
>           && ((REG_P (SET_SRC (old_set))
> -              && (GET_CODE (new_body) != SET
> -                  || !REG_P (SET_SRC (new_body))))
> +              && (GET_CODE (new_body) != SET || !REG_P (SET_SRC
> (new_body))))
>               /* If this was a load from or store to memory, compare
>                  the MEM in recog_data.operand to the one in the
> insn.
>                  If they are not equal, then rerecognize the insn. 
> */
> @@ -3449,7 +3441,7 @@ eliminate_regs_in_insn (rtx_insn *insn, int
> replace)
>                       || (MEM_P (SET_DEST (old_set))
>                           && SET_DEST (old_set) !=
> recog_data.operand[0])))
>               /* If this was an add insn before, rerecognize.  */
> -             || GET_CODE (SET_SRC (old_set)) == PLUS))
> +             || PLUS_P (SET_SRC (old_set))))
>         {
>           int new_icode = recog (PATTERN (insn), insn, 0);
>           if (new_icode >= 0)
> @@ -3557,11 +3549,10 @@ elimination_costs_in_insn (rtx_insn *insn)
>    if (old_set && REG_P (SET_DEST (old_set)))
>      {
>        sets_reg_p = true;
> -      if (GET_CODE (SET_SRC (old_set)) == PLUS)
> +      if (PLUS_P (SET_SRC (old_set)))
>         plus_src = SET_SRC (old_set);
>        /* First see if the source is of the form (plus (...) CST). 
> */
> -      if (plus_src
> -         && CONST_INT_P (XEXP (plus_src, 1)))
> +      if (plus_src && CONST_INT_P (XEXP (plus_src, 1)))
>         plus_cst_src = plus_src;
>        else if (REG_P (SET_SRC (old_set))
>                || plus_src)
> @@ -3573,7 +3564,7 @@ elimination_costs_in_insn (rtx_insn *insn)
>             {
>               if ((REG_NOTE_KIND (links) == REG_EQUAL
>                    || REG_NOTE_KIND (links) == REG_EQUIV)
> -                 && GET_CODE (XEXP (links, 0)) == PLUS
> +                 && PLUS_P (XEXP (links, 0))
>                   && CONST_INT_P (XEXP (XEXP (links, 0), 1)))
>                 {
>                   plus_cst_src = XEXP (links, 0);
> @@ -4077,7 +4068,7 @@ init_eliminable_invariants (rtx_insn *first,
> bool do_subregs)
>                   machine_mode mode;
>  
>                   mode = GET_MODE (SET_DEST (set));
> -                 if (GET_CODE (x) == PLUS)
> +                 if (PLUS_P (x))
>                     {
>                       /* This is PLUS of frame pointer and a
> constant,
>                          and might be shared.  Unshare it.  */
> @@ -5558,14 +5549,11 @@ gen_reload_chain_without_interm_reg_p (int
> r1, int r2)
>       opposite SUBREG on OUT.  Likewise for a paradoxical SUBREG on
> OUT.  */
>    strip_paradoxical_subreg (&in, &out);
>  
> -  if (GET_CODE (in) == PLUS
> -      && (REG_P (XEXP (in, 0))
> -         || GET_CODE (XEXP (in, 0)) == SUBREG
> +  if (PLUS_P (in)
> +      && (REG_P (XEXP (in, 0)) || GET_CODE (XEXP (in, 0)) == SUBREG
>           || MEM_P (XEXP (in, 0)))
> -      && (REG_P (XEXP (in, 1))
> -         || GET_CODE (XEXP (in, 1)) == SUBREG
> -         || CONSTANT_P (XEXP (in, 1))
> -         || MEM_P (XEXP (in, 1))))
> +      && (REG_P (XEXP (in, 1)) || GET_CODE (XEXP (in, 1)) == SUBREG
> +         || CONSTANT_P (XEXP (in, 1)) || MEM_P (XEXP (in, 1))))
>      {
>        insn = emit_insn (gen_rtx_SET (out, in));
>        code = recog_memoized (insn);
> @@ -5963,7 +5951,7 @@ function_invariant_p (const_rtx x)
>      return 1;
>    if (x == frame_pointer_rtx || x == arg_pointer_rtx)
>      return 1;
> -  if (GET_CODE (x) == PLUS
> +  if (PLUS_P (x)
>        && (XEXP (x, 0) == frame_pointer_rtx || XEXP (x, 0) ==
> arg_pointer_rtx)
>        && GET_CODE (XEXP (x, 1)) == CONST_INT)
>      return 1;
> @@ -6605,16 +6593,12 @@ choose_reload_regs (class insn_chain *chain)
>             }
>  
>           /* Here's another way to see if the value is already lying
> around.  */
> -         if (inheritance
> -             && rld[r].in != 0
> -             && ! reload_inherited[r]
> +         if (inheritance && rld[r].in != 0 && !reload_inherited[r]
>               && rld[r].out == 0
> -             && (CONSTANT_P (rld[r].in)
> -                 || GET_CODE (rld[r].in) == PLUS
> -                 || REG_P (rld[r].in)
> -                 || MEM_P (rld[r].in))
> +             && (CONSTANT_P (rld[r].in) || PLUS_P (rld[r].in)
> +                 || REG_P (rld[r].in) || MEM_P (rld[r].in))
>               && (rld[r].nregs == max_group_size
> -                 || ! reg_classes_intersect_p (rld[r].rclass,
> group_class)))
> +                 || !reg_classes_intersect_p (rld[r].rclass,
> group_class)))
>             search_equiv = rld[r].in;
>  
>           if (search_equiv)
> @@ -8453,14 +8437,11 @@ gen_reload (rtx out, rtx in, int opnum, enum
> reload_type type)
>  
>       ??? At some point, this whole thing needs to be rethought.  */
>  
> -  if (GET_CODE (in) == PLUS
> -      && (REG_P (XEXP (in, 0))
> -         || GET_CODE (XEXP (in, 0)) == SUBREG
> +  if (PLUS_P (in)
> +      && (REG_P (XEXP (in, 0)) || GET_CODE (XEXP (in, 0)) == SUBREG
>           || MEM_P (XEXP (in, 0)))
> -      && (REG_P (XEXP (in, 1))
> -         || GET_CODE (XEXP (in, 1)) == SUBREG
> -         || CONSTANT_P (XEXP (in, 1))
> -         || MEM_P (XEXP (in, 1))))
> +      && (REG_P (XEXP (in, 1)) || GET_CODE (XEXP (in, 1)) == SUBREG
> +         || CONSTANT_P (XEXP (in, 1)) || MEM_P (XEXP (in, 1))))
>      {
>        /* We need to compute the sum of a register or a MEM and
> another
>          register, constant, or MEM, and put it into the reload
> @@ -8991,7 +8972,7 @@ inc_for_reload (rtx reloadreg, rtx in, rtx
> value, poly_int64 inc_amount)
>  
>    if (GET_CODE (value) == PRE_MODIFY || GET_CODE (value) ==
> POST_MODIFY)
>      {
> -      gcc_assert (GET_CODE (XEXP (value, 1)) == PLUS);
> +      gcc_assert (PLUS_P (XEXP (value, 1)));
>        inc = find_replacement (&XEXP (XEXP (value, 1), 1));
>      }
>    else
> diff --git a/gcc/reorg.cc b/gcc/reorg.cc
> index 07b2045986c..9a596e042c7 100644
> --- a/gcc/reorg.cc
> +++ b/gcc/reorg.cc
> @@ -2663,12 +2663,10 @@ fill_slots_from_thread (rtx_jump_insn *insn,
> rtx condition,
>         return;
>  
>        dest = SET_DEST (pat), src = SET_SRC (pat);
> -      if ((GET_CODE (src) == PLUS || GET_CODE (src) == MINUS)
> -         && rtx_equal_p (XEXP (src, 0), dest)
> -         && (!FLOAT_MODE_P (GET_MODE (src))
> -             || flag_unsafe_math_optimizations)
> -         && ! reg_overlap_mentioned_p (dest, XEXP (src, 1))
> -         && ! side_effects_p (pat))
> +      if ((PLUS_P (src) || MINUS_P (src)) && rtx_equal_p (XEXP (src,
> 0), dest)
> +         && (!FLOAT_MODE_P (GET_MODE (src)) ||
> flag_unsafe_math_optimizations)
> +         && !reg_overlap_mentioned_p (dest, XEXP (src, 1))
> +         && !side_effects_p (pat))
>         {
>           rtx other = XEXP (src, 1);
>           rtx new_arith;
> @@ -2681,7 +2679,7 @@ fill_slots_from_thread (rtx_jump_insn *insn,
> rtx condition,
>             new_arith = gen_rtx_fmt_ee (GET_CODE (src), GET_MODE
> (src), dest,
>                                         negate_rtx (GET_MODE (src),
> other));
>           else
> -           new_arith = gen_rtx_fmt_ee (GET_CODE (src) == PLUS ?
> MINUS : PLUS,
> +           new_arith = gen_rtx_fmt_ee (PLUS_P (src) ? MINUS : PLUS,
>                                         GET_MODE (src), dest, other);
>  
>           ninsn = emit_insn_after (gen_rtx_SET (dest, new_arith),
> insn);
> diff --git a/gcc/rtl.cc b/gcc/rtl.cc
> index 86c322b19ca..460b8ed05d5 100644
> --- a/gcc/rtl.cc
> +++ b/gcc/rtl.cc
> @@ -269,12 +269,11 @@ shared_const_p (const_rtx orig)
>    /* CONST can be shared if it contains a SYMBOL_REF.  If it
> contains
>       a LABEL_REF, it isn't sharable.  */
>    poly_int64 offset;
> -  return (GET_CODE (XEXP (orig, 0)) == PLUS
> +  return (PLUS_P (XEXP (orig, 0))
>           && GET_CODE (XEXP (XEXP (orig, 0), 0)) == SYMBOL_REF
>           && poly_int_rtx_p (XEXP (XEXP (orig, 0), 1), &offset));
>  }
>  
> -
>  /* Create a new copy of an rtx.
>     Recursively copies the operands of the rtx,
>     except for those few rtx codes that are sharable.  */
> diff --git a/gcc/rtl.h b/gcc/rtl.h
> index 7a8c4709257..bf032eb57a5 100644
> --- a/gcc/rtl.h
> +++ b/gcc/rtl.h
> @@ -882,6 +882,17 @@ struct GTY(()) rtvec_def {
>  /* Predicate yielding true iff RTX is a symbol ref.  */
>  #define SYMBOL_REF_P(RTX) (GET_CODE (RTX) == SYMBOL_REF)
>  
> +/* RTL predicates for value binary operators.  */
> +/* Predicate yielding nonzero iff RTX is an addition operation.  */
> +#define PLUS_P(RTX) (GET_CODE (RTX) == PLUS)
> +
> +/* Predicate yielding nonzero iff RTX is a subtraction operation. 
> */
> +#define MINUS_P(RTX) (GET_CODE(RTX) == MINUS)
> +
> +/* Predicate yielding nonzero iff RTX is a multiplication
> operation.  */
> +#define MULT_P(RTX) (GET_CODE(RTX) == MULT)
> +
> +
>  template <>
>  template <>
>  inline bool
> diff --git a/gcc/rtlanal.cc b/gcc/rtlanal.cc
> index 56da7435a28..5266fbbdd9d 100644
> --- a/gcc/rtlanal.cc
> +++ b/gcc/rtlanal.cc
> @@ -859,11 +859,9 @@ get_integer_term (const_rtx x)
>    if (GET_CODE (x) == CONST)
>      x = XEXP (x, 0);
>  
> -  if (GET_CODE (x) == MINUS
> -      && CONST_INT_P (XEXP (x, 1)))
> -    return - INTVAL (XEXP (x, 1));
> -  if (GET_CODE (x) == PLUS
> -      && CONST_INT_P (XEXP (x, 1)))
> +  if (MINUS_P (x) && CONST_INT_P (XEXP (x, 1)))
> +    return -INTVAL (XEXP (x, 1));
> +  if (PLUS_P (x) && CONST_INT_P (XEXP (x, 1)))
>      return INTVAL (XEXP (x, 1));
>    return 0;
>  }
> @@ -878,11 +876,9 @@ get_related_value (const_rtx x)
>    if (GET_CODE (x) != CONST)
>      return 0;
>    x = XEXP (x, 0);
> -  if (GET_CODE (x) == PLUS
> -      && CONST_INT_P (XEXP (x, 1)))
> +  if (PLUS_P (x) && CONST_INT_P (XEXP (x, 1)))
>      return XEXP (x, 0);
> -  else if (GET_CODE (x) == MINUS
> -          && CONST_INT_P (XEXP (x, 1)))
> +  else if (MINUS_P (x) && CONST_INT_P (XEXP (x, 1)))
>      return XEXP (x, 0);
>    return 0;
>  }
> @@ -931,7 +927,7 @@ split_const (rtx x, rtx *base_out, rtx
> *offset_out)
>    if (GET_CODE (x) == CONST)
>      {
>        x = XEXP (x, 0);
> -      if (GET_CODE (x) == PLUS && CONST_INT_P (XEXP (x, 1)))
> +      if (PLUS_P (x) && CONST_INT_P (XEXP (x, 1)))
>         {
>           *base_out = XEXP (x, 0);
>           *offset_out = XEXP (x, 1);
> @@ -953,7 +949,7 @@ strip_offset (rtx x, poly_int64_pod *offset_out)
>    rtx test = x;
>    if (GET_CODE (test) == CONST)
>      test = XEXP (test, 0);
> -  if (GET_CODE (test) == PLUS)
> +  if (PLUS_P (test))
>      {
>        base = XEXP (test, 0);
>        test = XEXP (test, 1);
> @@ -6597,7 +6593,7 @@ decompose_automod_address (struct address_info
> *info)
>    gcc_checking_assert (info->base == info->base_term);
>  
>    rtx plus = XEXP (*info->inner, 1);
> -  gcc_assert (GET_CODE (plus) == PLUS);
> +  gcc_assert (PLUS_P (plus));
>  
>    info->base_term2 = &XEXP (plus, 0);
>    gcc_checking_assert (rtx_equal_p (*info->base_term, *info-
> >base_term2));
> @@ -6617,7 +6613,7 @@ static rtx **
>  extract_plus_operands (rtx *loc, rtx **ptr, rtx **end)
>  {
>    rtx x = *loc;
> -  if (GET_CODE (x) == PLUS)
> +  if (PLUS_P (x))
>      {
>        ptr = extract_plus_operands (&XEXP (x, 0), ptr, end);
>        ptr = extract_plus_operands (&XEXP (x, 1), ptr, end);
> @@ -6808,8 +6804,7 @@ HOST_WIDE_INT
>  get_index_scale (const struct address_info *info)
>  {
>    rtx index = *info->index;
> -  if (GET_CODE (index) == MULT
> -      && CONST_INT_P (XEXP (index, 1))
> +  if (MULT_P (index) && CONST_INT_P (XEXP (index, 1))
>        && info->index_term == &XEXP (index, 0))
>      return INTVAL (XEXP (index, 1));
>  
> diff --git a/gcc/sched-deps.cc b/gcc/sched-deps.cc
> index 948aa0c3b60..3dd05cc7b6a 100644
> --- a/gcc/sched-deps.cc
> +++ b/gcc/sched-deps.cc
> @@ -3439,9 +3439,7 @@ sched_analyze_insn (class deps_desc *deps, rtx
> x, rtx_insn *insn)
>        tmp = SET_SRC (set);
>        if (GET_CODE (tmp) == SUBREG)
>         tmp = SUBREG_REG (tmp);
> -      if ((GET_CODE (tmp) == PLUS
> -          || GET_CODE (tmp) == MINUS)
> -         && REG_P (XEXP (tmp, 0))
> +      if ((PLUS_P (tmp) || MINUS_P (tmp)) && REG_P (XEXP (tmp, 0))
>           && REGNO (XEXP (tmp, 0)) == STACK_POINTER_REGNUM
>           && dest_regno == STACK_POINTER_REGNUM)
>         src_regno = STACK_POINTER_REGNUM;
> @@ -4867,12 +4865,12 @@ find_mem (struct mem_inc_info *mii, rtx
> *address_of_x)
>        mii->mem_loc = address_of_x;
>        mii->mem_index = NULL_RTX;
>        mii->mem_constant = 0;
> -      if (GET_CODE (reg0) == PLUS && CONST_INT_P (XEXP (reg0, 1)))
> +      if (PLUS_P (reg0) && CONST_INT_P (XEXP (reg0, 1)))
>         {
>           mii->mem_constant = INTVAL (XEXP (reg0, 1));
>           reg0 = XEXP (reg0, 0);
>         }
> -      if (GET_CODE (reg0) == PLUS)
> +      if (PLUS_P (reg0))
>         {
>           mii->mem_index = XEXP (reg0, 1);
>           reg0 = XEXP (reg0, 0);
> diff --git a/gcc/simplify-rtx.cc b/gcc/simplify-rtx.cc
> index fc0d6c3ca2a..dc7383a38e3 100644
> --- a/gcc/simplify-rtx.cc
> +++ b/gcc/simplify-rtx.cc
> @@ -643,11 +643,8 @@ simplify_context::simplify_truncation
> (machine_mode mode, rtx op,
>    /* If the machine can perform operations in the truncated mode,
> distribute
>       the truncation, i.e. simplify (truncate:QI (op:SI (x:SI)
> (y:SI))) into
>       (op:QI (truncate:QI (x:SI)) (truncate:QI (y:SI))).  */
> -  if (1
> -      && (!WORD_REGISTER_OPERATIONS || precision >= BITS_PER_WORD)
> -      && (GET_CODE (op) == PLUS
> -         || GET_CODE (op) == MINUS
> -         || GET_CODE (op) == MULT))
> +  if (1 && (!WORD_REGISTER_OPERATIONS || precision >= BITS_PER_WORD)
> +      && (PLUS_P (op) || MINUS_P (op) || MULT_P (op)))
>      {
>        rtx op0 = simplify_gen_unary (TRUNCATE, mode, XEXP (op, 0),
> op_mode);
>        if (op0)
> @@ -947,8 +944,7 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>                                         XEXP (op, 0), XEXP (op, 1));
>  
>        /* (not (plus X -1)) can become (neg X).  */
> -      if (GET_CODE (op) == PLUS
> -         && XEXP (op, 1) == constm1_rtx)
> +      if (PLUS_P (op) && XEXP (op, 1) == constm1_rtx)
>         return simplify_gen_unary (NEG, mode, XEXP (op, 0), mode);
>  
>        /* Similarly, (not (neg X)) is (plus X -1).  Only do this for
> @@ -966,14 +962,12 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>         return simplify_gen_binary (XOR, mode, XEXP (op, 0), temp);
>  
>        /* (not (plus X C)) for signbit C is (xor X D) with D = ~C. 
> */
> -      if (GET_CODE (op) == PLUS
> -         && CONST_INT_P (XEXP (op, 1))
> +      if (PLUS_P (op) && CONST_INT_P (XEXP (op, 1))
>           && mode_signbit_p (mode, XEXP (op, 1))
> -         && (temp = simplify_unary_operation (NOT, mode,
> -                                              XEXP (op, 1), mode))
> != 0)
> +         && (temp = simplify_unary_operation (NOT, mode, XEXP (op,
> 1), mode))
> +              != 0)
>         return simplify_gen_binary (XOR, mode, XEXP (op, 0), temp);
>  
> -
>        /* (not (ashift 1 X)) is (rotate ~1 X).  We used to do this
> for
>          operands other than 1, but that is not valid.  We could do a
>          similar simplification for (not (lshiftrt C X)) where C is
> @@ -1079,8 +1073,7 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>         }
>  
>        /* (neg (plus X 1)) can become (not X).  */
> -      if (GET_CODE (op) == PLUS
> -         && XEXP (op, 1) == const1_rtx)
> +      if (PLUS_P (op) && XEXP (op, 1) == const1_rtx)
>         return simplify_gen_unary (NOT, mode, XEXP (op, 0), mode);
>  
>        /* Similarly, (neg (not X)) is (plus X 1).  */
> @@ -1093,13 +1086,11 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>          both +0, (minus Y X) is the same as (minus X Y).  If the
>          rounding mode is towards +infinity (or -infinity) then the
> two
>          expressions will be rounded differently.  */
> -      if (GET_CODE (op) == MINUS
> -         && !HONOR_SIGNED_ZEROS (mode)
> +      if (MINUS_P (op) && !HONOR_SIGNED_ZEROS (mode)
>           && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
>         return simplify_gen_binary (MINUS, mode, XEXP (op, 1), XEXP
> (op, 0));
>  
> -      if (GET_CODE (op) == PLUS
> -         && !HONOR_SIGNED_ZEROS (mode)
> +      if (PLUS_P (op) && !HONOR_SIGNED_ZEROS (mode)
>           && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
>         {
>           /* (neg (plus A C)) is simplified to (minus -C A).  */
> @@ -1118,8 +1109,7 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>  
>        /* (neg (mult A B)) becomes (mult A (neg B)).
>          This works even for floating-point values.  */
> -      if (GET_CODE (op) == MULT
> -         && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
> +      if (MULT_P (op) && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
>         {
>           temp = simplify_gen_unary (NEG, mode, XEXP (op, 1), mode);
>           return simplify_gen_binary (MULT, mode, XEXP (op, 0),
> temp);
> @@ -1209,8 +1199,7 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>      case TRUNCATE:
>        /* Don't optimize (lshiftrt (mult ...)) as it would interfere
>          with the umulXi3_highpart patterns.  */
> -      if (GET_CODE (op) == LSHIFTRT
> -         && GET_CODE (XEXP (op, 0)) == MULT)
> +      if (GET_CODE (op) == LSHIFTRT && MULT_P (XEXP (op, 0)))
>         break;
>  
>        if (GET_MODE_CLASS (mode) == MODE_PARTIAL_INT)
> @@ -1482,16 +1471,15 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>          becomes just the MINUS if its mode is MODE.  This allows
>          folding switch statements on machines using casesi (such as
>          the VAX).  */
> -      if (GET_CODE (op) == TRUNCATE
> -         && GET_MODE (XEXP (op, 0)) == mode
> -         && GET_CODE (XEXP (op, 0)) == MINUS
> +      if (GET_CODE (op) == TRUNCATE && GET_MODE (XEXP (op, 0)) ==
> mode
> +         && MINUS_P (XEXP (op, 0))
>           && GET_CODE (XEXP (XEXP (op, 0), 0)) == LABEL_REF
>           && GET_CODE (XEXP (XEXP (op, 0), 1)) == LABEL_REF)
>         return XEXP (op, 0);
>  
>        /* Extending a widening multiplication should be canonicalized
> to
>          a wider widening multiplication.  */
> -      if (GET_CODE (op) == MULT)
> +      if (MULT_P (op))
>         {
>           rtx lhs = XEXP (op, 0);
>           rtx rhs = XEXP (op, 1);
> @@ -1717,7 +1705,7 @@ simplify_context::simplify_unary_operation_1
> (rtx_code code, machine_mode mode,
>  
>        /* Extending a widening multiplication should be canonicalized
> to
>          a wider widening multiplication.  */
> -      if (GET_CODE (op) == MULT)
> +      if (MULT_P (op))
>         {
>           rtx lhs = XEXP (op, 0);
>           rtx rhs = XEXP (op, 1);
> @@ -2803,8 +2791,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>               coeff0 = wi::minus_one (GET_MODE_PRECISION (int_mode));
>               lhs = XEXP (lhs, 0);
>             }
> -         else if (GET_CODE (lhs) == MULT
> -                  && CONST_SCALAR_INT_P (XEXP (lhs, 1)))
> +         else if (MULT_P (lhs) && CONST_SCALAR_INT_P (XEXP (lhs,
> 1)))
>             {
>               coeff0 = rtx_mode_t (XEXP (lhs, 1), int_mode);
>               lhs = XEXP (lhs, 0);
> @@ -2824,8 +2811,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>               coeff1 = wi::minus_one (GET_MODE_PRECISION (int_mode));
>               rhs = XEXP (rhs, 0);
>             }
> -         else if (GET_CODE (rhs) == MULT
> -                  && CONST_INT_P (XEXP (rhs, 1)))
> +         else if (MULT_P (rhs) && CONST_INT_P (XEXP (rhs, 1)))
>             {
>               coeff1 = rtx_mode_t (XEXP (rhs, 1), int_mode);
>               rhs = XEXP (rhs, 0);
> @@ -2856,32 +2842,32 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>           /* Optimize (X - 1) * Y + Y to X * Y.  */
>           lhs = op0;
>           rhs = op1;
> -         if (GET_CODE (op0) == MULT)
> +         if (MULT_P (op0))
>             {
> -             if (((GET_CODE (XEXP (op0, 0)) == PLUS
> +             if (((PLUS_P (XEXP (op0, 0))
>                     && XEXP (XEXP (op0, 0), 1) == constm1_rtx)
> -                  || (GET_CODE (XEXP (op0, 0)) == MINUS
> +                  || (MINUS_P (XEXP (op0, 0))
>                        && XEXP (XEXP (op0, 0), 1) == const1_rtx))
>                   && rtx_equal_p (XEXP (op0, 1), op1))
>                 lhs = XEXP (XEXP (op0, 0), 0);
> -             else if (((GET_CODE (XEXP (op0, 1)) == PLUS
> +             else if (((PLUS_P (XEXP (op0, 1))
>                          && XEXP (XEXP (op0, 1), 1) == constm1_rtx)
> -                       || (GET_CODE (XEXP (op0, 1)) == MINUS
> +                       || (MINUS_P (XEXP (op0, 1))
>                             && XEXP (XEXP (op0, 1), 1) ==
> const1_rtx))
>                        && rtx_equal_p (XEXP (op0, 0), op1))
>                 lhs = XEXP (XEXP (op0, 1), 0);
>             }
> -         else if (GET_CODE (op1) == MULT)
> +         else if (MULT_P (op1))
>             {
> -             if (((GET_CODE (XEXP (op1, 0)) == PLUS
> +             if (((PLUS_P (XEXP (op1, 0))
>                     && XEXP (XEXP (op1, 0), 1) == constm1_rtx)
> -                  || (GET_CODE (XEXP (op1, 0)) == MINUS
> +                  || (MINUS_P (XEXP (op1, 0))
>                        && XEXP (XEXP (op1, 0), 1) == const1_rtx))
>                   && rtx_equal_p (XEXP (op1, 1), op0))
>                 rhs = XEXP (XEXP (op1, 0), 0);
> -             else if (((GET_CODE (XEXP (op1, 1)) == PLUS
> +             else if (((PLUS_P (XEXP (op1, 1))
>                          && XEXP (XEXP (op1, 1), 1) == constm1_rtx)
> -                       || (GET_CODE (XEXP (op1, 1)) == MINUS
> +                       || (MINUS_P (XEXP (op1, 1))
>                             && XEXP (XEXP (op1, 1), 1) ==
> const1_rtx))
>                        && rtx_equal_p (XEXP (op1, 0), op0))
>                 rhs = XEXP (XEXP (op1, 1), 0);
> @@ -2900,8 +2886,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>                                                          XEXP (op0,
> 1)));
>  
>        /* Canonicalize (plus (mult (neg B) C) A) to (minus A (mult B
> C)).  */
> -      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode)
> -         && GET_CODE (op0) == MULT
> +      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode) && MULT_P (op0)
>           && GET_CODE (XEXP (op0, 0)) == NEG)
>         {
>           rtx in1, in2;
> @@ -3022,8 +3007,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>               coeff0 = wi::minus_one (GET_MODE_PRECISION (int_mode));
>               lhs = XEXP (lhs, 0);
>             }
> -         else if (GET_CODE (lhs) == MULT
> -                  && CONST_SCALAR_INT_P (XEXP (lhs, 1)))
> +         else if (MULT_P (lhs) && CONST_SCALAR_INT_P (XEXP (lhs,
> 1)))
>             {
>               coeff0 = rtx_mode_t (XEXP (lhs, 1), int_mode);
>               lhs = XEXP (lhs, 0);
> @@ -3043,8 +3027,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>               negcoeff1 = wi::one (GET_MODE_PRECISION (int_mode));
>               rhs = XEXP (rhs, 0);
>             }
> -         else if (GET_CODE (rhs) == MULT
> -                  && CONST_INT_P (XEXP (rhs, 1)))
> +         else if (MULT_P (rhs) && CONST_INT_P (XEXP (rhs, 1)))
>             {
>               negcoeff1 = wi::neg (rtx_mode_t (XEXP (rhs, 1),
> int_mode));
>               rhs = XEXP (rhs, 0);
> @@ -3075,17 +3058,17 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>  
>           /* Optimize (X + 1) * Y - Y to X * Y.  */
>           lhs = op0;
> -         if (GET_CODE (op0) == MULT)
> +         if (MULT_P (op0))
>             {
> -             if (((GET_CODE (XEXP (op0, 0)) == PLUS
> +             if (((PLUS_P (XEXP (op0, 0))
>                     && XEXP (XEXP (op0, 0), 1) == const1_rtx)
> -                  || (GET_CODE (XEXP (op0, 0)) == MINUS
> +                  || (MINUS_P (XEXP (op0, 0))
>                        && XEXP (XEXP (op0, 0), 1) == constm1_rtx))
>                   && rtx_equal_p (XEXP (op0, 1), op1))
>                 lhs = XEXP (XEXP (op0, 0), 0);
> -             else if (((GET_CODE (XEXP (op0, 1)) == PLUS
> +             else if (((PLUS_P (XEXP (op0, 1))
>                          && XEXP (XEXP (op0, 1), 1) == const1_rtx)
> -                       || (GET_CODE (XEXP (op0, 1)) == MINUS
> +                       || (MINUS_P (XEXP (op0, 1))
>                             && XEXP (XEXP (op0, 1), 1) ==
> constm1_rtx))
>                        && rtx_equal_p (XEXP (op0, 0), op1))
>                 lhs = XEXP (XEXP (op0, 1), 0);
> @@ -3145,8 +3128,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>         return reversed;
>  
>        /* Canonicalize (minus A (mult (neg B) C)) to (plus (mult B C)
> A).  */
> -      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode)
> -         && GET_CODE (op1) == MULT
> +      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode) && MULT_P (op1)
>           && GET_CODE (XEXP (op1, 0)) == NEG)
>         {
>           rtx in1, in2;
> @@ -3161,8 +3143,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>  
>        /* Canonicalize (minus (neg A) (mult B C)) to
>          (minus (mult (neg B) C) A).  */
> -      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode)
> -         && GET_CODE (op1) == MULT
> +      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode) && MULT_P (op1)
>           && GET_CODE (op0) == NEG)
>         {
>           rtx in1, in2;
> @@ -3208,9 +3189,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>              just moved the NEG to the second operand,
> simplify_gen_binary
>              below could through simplify_associative_operation move
>              the NEG around again and recurse endlessly.  */
> -         if (temp
> -             && GET_CODE (op1) == MULT
> -             && GET_CODE (temp) == MULT
> +         if (temp && MULT_P (op1) && MULT_P (temp)
>               && XEXP (op1, 0) == XEXP (temp, 0)
>               && GET_CODE (XEXP (temp, 1)) == NEG
>               && XEXP (op1, 1) == XEXP (XEXP (temp, 1), 0))
> @@ -3225,9 +3204,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>              just moved the NEG to the second operand,
> simplify_gen_binary
>              below could through simplify_associative_operation move
>              the NEG around again and recurse endlessly.  */
> -         if (temp
> -             && GET_CODE (op0) == MULT
> -             && GET_CODE (temp) == MULT
> +         if (temp && MULT_P (op0) && MULT_P (temp)
>               && XEXP (op0, 0) == XEXP (temp, 0)
>               && GET_CODE (XEXP (temp, 1)) == NEG
>               && XEXP (op0, 1) == XEXP (XEXP (temp, 1), 0))
> @@ -3405,11 +3382,10 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>          the IOR as a PLUS and we can associate.  This is valid if
> OP1
>           can be safely shifted left C bits.  */
>        if (CONST_INT_P (trueop1) && GET_CODE (op0) == ASHIFTRT
> -          && GET_CODE (XEXP (op0, 0)) == PLUS
> -          && CONST_INT_P (XEXP (XEXP (op0, 0), 1))
> -          && CONST_INT_P (XEXP (op0, 1))
> -          && INTVAL (XEXP (op0, 1)) < HOST_BITS_PER_WIDE_INT)
> -        {
> +         && PLUS_P (XEXP (op0, 0)) && CONST_INT_P (XEXP (XEXP (op0,
> 0), 1))
> +         && CONST_INT_P (XEXP (op0, 1))
> +         && INTVAL (XEXP (op0, 1)) < HOST_BITS_PER_WIDE_INT)
> +       {
>           int count = INTVAL (XEXP (op0, 1));
>           HOST_WIDE_INT mask = UINTVAL (trueop1) << count;
>  
> @@ -3420,7 +3396,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>                                         plus_constant (mode, XEXP
> (op0, 0),
>                                                        mask),
>                                         XEXP (op0, 1));
> -        }
> +       }
>  
>        /* The following happens with bitfield merging.
>           (X & C) | ((X | Y) & ~C) -> X | (Y & ~C) */
> @@ -3497,8 +3473,7 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>           && mode_signbit_p (mode, op1))
>         return simplify_gen_binary (PLUS, mode, op0, op1);
>        /* (xor (plus X C1) C2) is (xor X (C1^C2)) if C1 is signbit. 
> */
> -      if (CONST_SCALAR_INT_P (op1)
> -         && GET_CODE (op0) == PLUS
> +      if (CONST_SCALAR_INT_P (op1) && PLUS_P (op0)
>           && CONST_SCALAR_INT_P (XEXP (op0, 1))
>           && mode_signbit_p (mode, XEXP (op0, 1)))
>         return simplify_gen_binary (XOR, mode, XEXP (op0, 0),
> @@ -3849,11 +3824,10 @@ simplify_context::simplify_binary_operation_1
> (rtx_code code,
>          and for - instead of + and/or ^ instead of |.
>           Also, if (N & M) == 0, then
>          (A +- N) & M -> A & M.  */
> -      if (CONST_INT_P (trueop1)
> -         && HWI_COMPUTABLE_MODE_P (mode)
> +      if (CONST_INT_P (trueop1) && HWI_COMPUTABLE_MODE_P (mode)
>           && ~UINTVAL (trueop1)
>           && (UINTVAL (trueop1) & (UINTVAL (trueop1) + 1)) == 0
> -         && (GET_CODE (op0) == PLUS || GET_CODE (op0) == MINUS))
> +         && (PLUS_P (op0) || MINUS_P (op0)))
>         {
>           rtx pmop[2];
>           int which;
> @@ -5413,8 +5387,7 @@ simplify_context::simplify_plus_minus (rtx_code
> code, machine_mode mode,
>               break;
>  
>             case CONST:
> -             if (n_ops != ARRAY_SIZE (ops)
> -                 && GET_CODE (XEXP (this_op, 0)) == PLUS
> +             if (n_ops != ARRAY_SIZE (ops) && PLUS_P (XEXP (this_op,
> 0))
>                   && CONSTANT_P (XEXP (XEXP (this_op, 0), 0))
>                   && CONSTANT_P (XEXP (XEXP (this_op, 0), 1)))
>                 {
> @@ -5672,10 +5645,8 @@ simplify_context::simplify_plus_minus
> (rtx_code code, machine_mode mode,
>  static bool
>  plus_minus_operand_p (const_rtx x)
>  {
> -  return GET_CODE (x) == PLUS
> -         || GET_CODE (x) == MINUS
> -        || (GET_CODE (x) == CONST
> -            && GET_CODE (XEXP (x, 0)) == PLUS
> +  return PLUS_P (x) || MINUS_P (x)
> +        || (GET_CODE (x) == CONST && PLUS_P (XEXP (x, 0))
>              && CONSTANT_P (XEXP (XEXP (x, 0), 0))
>              && CONSTANT_P (XEXP (XEXP (x, 0), 1)));
>  }
> @@ -5761,11 +5732,9 @@
> simplify_context::simplify_relational_operation_1 (rtx_code code,
>  
>    /* (LTU/GEU (PLUS a C) C), where C is constant, can be simplified
> to
>       (GEU/LTU a -C).  Likewise for (LTU/GEU (PLUS a C) a).  */
> -  if ((code == LTU || code == GEU)
> -      && GET_CODE (op0) == PLUS
> +  if ((code == LTU || code == GEU) && PLUS_P (op0)
>        && CONST_INT_P (XEXP (op0, 1))
> -      && (rtx_equal_p (op1, XEXP (op0, 0))
> -         || rtx_equal_p (op1, XEXP (op0, 1)))
> +      && (rtx_equal_p (op1, XEXP (op0, 0)) || rtx_equal_p (op1, XEXP
> (op0, 1)))
>        /* (LTU/GEU (PLUS a 0) 0) is not the same as (GEU/LTU a 0). */
>        && XEXP (op0, 1) != const0_rtx)
>      {
> @@ -5777,20 +5746,18 @@
> simplify_context::simplify_relational_operation_1 (rtx_code code,
>  
>    /* (GTU (PLUS a C) (C - 1)) where C is a non-zero constant can be
>       transformed into (LTU a -C).  */
> -  if (code == GTU && GET_CODE (op0) == PLUS && CONST_INT_P (op1)
> +  if (code == GTU && PLUS_P (op0) && CONST_INT_P (op1)
>        && CONST_INT_P (XEXP (op0, 1))
>        && (UINTVAL (op1) == UINTVAL (XEXP (op0, 1)) - 1)
>        && XEXP (op0, 1) != const0_rtx)
>      {
> -      rtx new_cmp
> -       = simplify_gen_unary (NEG, cmp_mode, XEXP (op0, 1),
> cmp_mode);
> +      rtx new_cmp = simplify_gen_unary (NEG, cmp_mode, XEXP (op0,
> 1), cmp_mode);
>        return simplify_gen_relational (LTU, mode, cmp_mode,
>                                        XEXP (op0, 0), new_cmp);
>      }
>  
>    /* Canonicalize (LTU/GEU (PLUS a b) b) as (LTU/GEU (PLUS a b) a). 
> */
> -  if ((code == LTU || code == GEU)
> -      && GET_CODE (op0) == PLUS
> +  if ((code == LTU || code == GEU) && PLUS_P (op0)
>        && rtx_equal_p (op1, XEXP (op0, 1))
>        /* Don't recurse "infinitely" for (LTU/GEU (PLUS b b) b).  */
>        && !rtx_equal_p (op1, XEXP (op0, 0)))
> diff --git a/gcc/var-tracking.cc b/gcc/var-tracking.cc
> index 9c40ec4fb8b..37bd7f2e017 100644
> --- a/gcc/var-tracking.cc
> +++ b/gcc/var-tracking.cc
> @@ -739,10 +739,9 @@ stack_adjust_offset_pre_post_cb (rtx, rtx op,
> rtx dest, rtx src, rtx srcoff,
>      case PRE_MODIFY:
>      case POST_MODIFY:
>        /* We handle only adjustments by constant amount.  */
> -      gcc_assert (GET_CODE (src) == PLUS
> -                 && CONST_INT_P (XEXP (src, 1))
> +      gcc_assert (PLUS_P (src) && CONST_INT_P (XEXP (src, 1))
>                   && XEXP (src, 0) == stack_pointer_rtx);
> -      ((HOST_WIDE_INT *)arg)[GET_CODE (op) == POST_MODIFY]
> +      ((HOST_WIDE_INT *) arg)[GET_CODE (op) == POST_MODIFY]
>         -= INTVAL (XEXP (src, 1));
>        return 0;
>      default:
> @@ -1149,15 +1148,13 @@ adjust_mems (rtx loc, const_rtx old_rtx, void
> *data)
>        if (tem == NULL_RTX)
>         tem = gen_rtx_raw_SUBREG (GET_MODE (loc), addr, SUBREG_BYTE
> (loc));
>      finish_subreg:
> -      if (MAY_HAVE_DEBUG_BIND_INSNS
> -         && GET_CODE (tem) == SUBREG
> -         && (GET_CODE (SUBREG_REG (tem)) == PLUS
> -             || GET_CODE (SUBREG_REG (tem)) == MINUS
> -             || GET_CODE (SUBREG_REG (tem)) == MULT
> +      if (MAY_HAVE_DEBUG_BIND_INSNS && GET_CODE (tem) == SUBREG
> +         && (PLUS_P (SUBREG_REG (tem)) || MINUS_P (SUBREG_REG (tem))
> +             || MULT_P (SUBREG_REG (tem))
>               || GET_CODE (SUBREG_REG (tem)) == ASHIFT)
> -         && is_a <scalar_int_mode> (GET_MODE (tem), &tem_mode)
> -         && is_a <scalar_int_mode> (GET_MODE (SUBREG_REG (tem)),
> -                                    &tem_subreg_mode)
> +         && is_a<scalar_int_mode> (GET_MODE (tem), &tem_mode)
> +         && is_a<scalar_int_mode> (GET_MODE (SUBREG_REG (tem)),
> +                                   &tem_subreg_mode)
>           && (GET_MODE_PRECISION (tem_mode)
>               < GET_MODE_PRECISION (tem_subreg_mode))
>           && subreg_lowpart_p (tem)
> @@ -2049,8 +2046,7 @@ negative_power_of_two_p (HOST_WIDE_INT i)
>  static rtx
>  vt_get_canonicalize_base (rtx loc)
>  {
> -  while ((GET_CODE (loc) == PLUS
> -         || GET_CODE (loc) == AND)
> +  while ((PLUS_P (loc) || GET_CODE (loc) == AND)
>          && GET_CODE (XEXP (loc, 1)) == CONST_INT
>          && (GET_CODE (loc) != AND
>              || negative_power_of_two_p (INTVAL (XEXP (loc, 1)))))
> @@ -2192,8 +2188,7 @@ vt_canonicalize_addr (dataflow_set *set, rtx
> oloc)
>  
>    while (retry)
>      {
> -      while (GET_CODE (loc) == PLUS
> -            && poly_int_rtx_p (XEXP (loc, 1), &term))
> +      while (PLUS_P (loc) && poly_int_rtx_p (XEXP (loc, 1), &term))
>         {
>           ofst += term;
>           loc = XEXP (loc, 0);
> @@ -2220,8 +2215,7 @@ vt_canonicalize_addr (dataflow_set *set, rtx
> oloc)
>             loc = get_addr_from_global_cache (loc);
>  
>           /* Consolidate plus_constants.  */
> -         while (maybe_ne (ofst, 0)
> -                && GET_CODE (loc) == PLUS
> +         while (maybe_ne (ofst, 0) && PLUS_P (loc)
>                  && poly_int_rtx_p (XEXP (loc, 1), &term))
>             {
>               ofst += term;
> @@ -8841,8 +8835,7 @@ emit_note_insn_var_location (variable **varp,
> emit_note_data *data)
>                     REG_ATTRS (new_loc) = REG_ATTRS
> (loc[n_var_parts]);
>                 }
>             }
> -         else if (MEM_P (loc[n_var_parts])
> -                  && GET_CODE (XEXP (loc2, 0)) == PLUS
> +         else if (MEM_P (loc[n_var_parts]) && PLUS_P (XEXP (loc2,
> 0))
>                    && REG_P (XEXP (XEXP (loc2, 0), 0))
>                    && poly_int_rtx_p (XEXP (XEXP (loc2, 0), 1),
> &offset2))
>             {
> @@ -10153,7 +10146,7 @@ vt_initialize (void)
>        elim = eliminate_regs (reg, VOIDmode, NULL_RTX);
>        if (elim != reg)
>         {
> -         if (GET_CODE (elim) == PLUS)
> +         if (PLUS_P (elim))
>             elim = XEXP (elim, 0);
>           if (elim == stack_pointer_rtx)
>             vt_init_cfa_base ();
> @@ -10173,7 +10166,7 @@ vt_initialize (void)
>        elim = eliminate_regs (reg, VOIDmode, NULL_RTX);
>        if (elim != reg)
>         {
> -         if (GET_CODE (elim) == PLUS)
> +         if (PLUS_P (elim))
>             {
>               fp_cfa_offset -= rtx_to_poly_int64 (XEXP (elim, 1));
>               elim = XEXP (elim, 0);
> @@ -10205,7 +10198,7 @@ vt_initialize (void)
>        elim = eliminate_regs (reg, VOIDmode, NULL_RTX);
>        if (elim != reg)
>         {
> -         if (GET_CODE (elim) == PLUS)
> +         if (PLUS_P (elim))
>             elim = XEXP (elim, 0);
>           if (elim == hard_frame_pointer_rtx)
>             vt_init_cfa_base ();
Segher Boessenkool Nov. 29, 2022, 12:09 a.m. UTC | #3
Hi!

On Sat, Nov 26, 2022 at 09:16:13PM -0500, Charlie Sale via Gcc-patches wrote:
> This is my first contribution to GCC :) one of the beginner projects
> suggested on the website was to add and use RTL type predicates.

It says "See which ones are worth having a predicate for, and add them."

None of the operations should get a predicate, imnsho, only more
structural things.  Code using PLUS_P is way *less* readable than that
using GET_CODE directly!  It is good if important things are more
explicit, it is bad to have many names, etc.

> +	* rtl.h (PLUS_P): RTL addition predicate
> +	(MINUS_P): RTL subtraction predicate
> +	(MULT_P): RTL multiplication predicate

	* rtl.h (PLUS_P): New.

> +	* alias.cc: use RTL predicates

	* alias.cc: Use new predicates.

Send the changelog as plain text btw, not as patch; if nothing else,
such patches will never apply cleanly :-)

>  			  set_reg_known_value (regno, XEXP (note, 0));
> -			  set_reg_known_equiv_p (regno,
> -						 REG_NOTE_KIND (note) == REG_EQUIV);
> +			  set_reg_known_equiv_p (regno, REG_NOTE_KIND (note)
> +							  == REG_EQUIV);

Don't reformat unrelated code.  And certainly not to something that
violates our coding standards :-)

> -			       && (t = get_reg_known_value (REGNO (XEXP (src, 0))))
> +			       && (t = get_reg_known_value (
> +				     REGNO (XEXP (src, 0))))

Wow, this is even worse.  Why would you do this at all?  I guess you
used some automatic formatting thing that sets maximum line length to
79?  It is 80, and it is a bad idea to reformat any random code.

> -	   && (REG_P (XEXP (SET_SRC (pat), 1)))
> -	   && GET_CODE (SET_SRC (pat)) == PLUS)
> +	   && (REG_P (XEXP (SET_SRC (pat), 1))) && PLUS_P (SET_SRC (pat)))

You could have removed the superfluous extra parentheses here :-)

>  	case SUBREG:
>  	  if ((SUBREG_PROMOTED_VAR_P (x)
>  	       || (REG_P (SUBREG_REG (x)) && REG_POINTER (SUBREG_REG (x)))
> -	       || (GET_CODE (SUBREG_REG (x)) == PLUS
> -		   && REG_P (XEXP (SUBREG_REG (x), 0))
> +	       || (PLUS_P (SUBREG_REG (x)) && REG_P (XEXP (SUBREG_REG (x), 0))
>  		   && REG_POINTER (XEXP (SUBREG_REG (x), 0))
>  		   && CONST_INT_P (XEXP (SUBREG_REG (x), 1))))

There was only one && per line here on purpose.  It makes the code much
more readable.

> -  if (GET_CODE (x) == PLUS
> -      && XEXP (x, 0) == stack_pointer_rtx
> +  if (PLUS_P (x) && XEXP (x, 0) == stack_pointer_rtx
>        && CONST_INT_P (XEXP (x, 1)))

Similar here (but it is so simple here that either is easy to read of
course).

> --- a/gcc/combine.cc
> +++ b/gcc/combine.cc
> @@ -3016,19 +3016,17 @@ try_combine (rtx_insn *i3, rtx_insn *i2, rtx_insn *i1, rtx_insn *i0,
>    /* See if any of the insns is a MULT operation.  Unless one is, we will
>       reject a combination that is, since it must be slower.  Be conservative
>       here.  */
> -  if (GET_CODE (i2src) == MULT
> -      || (i1 != 0 && GET_CODE (i1src) == MULT)
> -      || (i0 != 0 && GET_CODE (i0src) == MULT)
> -      || (GET_CODE (PATTERN (i3)) == SET
> -	  && GET_CODE (SET_SRC (PATTERN (i3))) == MULT))
> +  if (MULT_P (i2src) || (i1 != 0 && MULT_P (i1src))
> +      || (i0 != 0 && MULT_P (i0src))
> +      || (GET_CODE (PATTERN (i3)) == SET && MULT_P (SET_SRC (PATTERN (i3)))))
>      have_mult = 1;

No.  All || align here.  Please leave it that way.

> -  /* If I3 has an inc, then give up if I1 or I2 uses the reg that is inc'd.
> -     We used to do this EXCEPT in one case: I3 has a post-inc in an
> -     output operand.  However, that exception can give rise to insns like
> -	mov r3,(r3)+
> -     which is a famous insn on the PDP-11 where the value of r3 used as the
> -     source was model-dependent.  Avoid this sort of thing.  */
> +    /* If I3 has an inc, then give up if I1 or I2 uses the reg that is inc'd.
> +       We used to do this EXCEPT in one case: I3 has a post-inc in an
> +       output operand.  However, that exception can give rise to insns like
> +	  mov r3,(r3)+
> +       which is a famous insn on the PDP-11 where the value of r3 used as the
> +       source was model-dependent.  Avoid this sort of thing.  */

The indentation was correct, it now isn't anymore.  There is absolutely
no reason to touch this at all anyway.  NAK.

> -  if ((FIND_REG_INC_NOTE (i2, NULL_RTX) != 0
> -       && i2_is_used + added_sets_2 > 1)
> +  if ((FIND_REG_INC_NOTE (i2, NULL_RTX) != 0 && i2_is_used + added_sets_2 > 1)

Do not touch random other code please.  If there is a reason to reformat
it (there isn't here!) do that as a separate patch.

>        || (i1 != 0 && FIND_REG_INC_NOTE (i1, NULL_RTX) != 0
> -	  && (i1_is_used + added_sets_1 + (added_sets_2 && i1_feeds_i2_n)
> -	      > 1))
> +	  && (i1_is_used + added_sets_1 + (added_sets_2 && i1_feeds_i2_n) > 1))
>        || (i0 != 0 && FIND_REG_INC_NOTE (i0, NULL_RTX) != 0
> -	  && (n_occurrences + added_sets_0
> -	      + (added_sets_1 && i0_feeds_i1_n)
> -	      + (added_sets_2 && i0_feeds_i2_n)
> +	  && (n_occurrences + added_sets_0 + (added_sets_1 && i0_feeds_i1_n)
> +		+ (added_sets_2 && i0_feeds_i2_n)
>  	      > 1))

These are way worse than they were before, and also different layou than
we use in GCC.  NAK.

> -      if (GET_CODE (XEXP (x, 0)) == PLUS
> -	  && CONST_INT_P (XEXP (XEXP (x, 0), 1))
> -	  && ! memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
> -					    MEM_ADDR_SPACE (x)))
> +      if (PLUS_P (XEXP (x, 0)) && CONST_INT_P (XEXP (XEXP (x, 0), 1))
> +	  && !memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
> +					   MEM_ADDR_SPACE (x)))

combine.c (as well as other older code) uses space-after-bang a lot.
Do not change that randomly please, because that a) makes it harder to
review the code (separate patch please!), and b) it makes it harder to
read the resulting code!  Or did you change do s/! ([a-zA-A0-9_])/!\1/
here on the whole file?

> -	  rtx_insn *seq = combine_split_insns (gen_rtx_SET (reg, XEXP (x, 0)),
> -					       subst_insn);
> +	  rtx_insn *seq
> +	    = combine_split_insns (gen_rtx_SET (reg, XEXP (x, 0)), subst_insn);

The original was better.

For big mechanical patches, please do only *one* thing per patch, so all
the patches in the series will be totally boring and much MUCH easier to
review.  But again, I think it is a mistake to make predicates for PLUS
and MINUS and such.  Sorry.  PLUS is frequent in this patch, but MINUS
and MULT are not at all, and even PLUS is not common in our code.  A few
characters shorter is nice for *very* common things, but extra
expressiveness through verbosity is worth more here, imo.


Segher
Segher Boessenkool Nov. 29, 2022, 12:36 a.m. UTC | #4
On Sun, Nov 27, 2022 at 09:21:00AM -0500, David Malcolm via Gcc-patches wrote:
> We're currently in "stage 3" of GCC 13 development, which means that
> we're focusing on bug-fixing, rather than cleanups and feature work. 
> Though exceptions can be made for low-risk work, at the discretion of
> the release managers; I've taken the liberty of CCing them.

Such global changes are incomnvenient for people who have touched any
of that code in their own patches.  If we really want to do that it
should be done early in stage 1 (when everything is broken for everyone
anyway), and should be agreed on beforehand, or really, should only be
done for obvious improvements.

This is not an obvious improvement.

> > All existings tests did pass.

I have never seen a single target where all existing tests passed.  What
we usually do is "same failures before and after the patch" :-)

> RTL is an aspect of the compiler that tends to have the most per-target
> differences, so it's especially important to be precise about which
> target(s) you built and tested on.

Not that that should matter at all for patches that do not actually
change anything, like this one should be: it should only change
notation.  That is in the nature of helper functions and helper macros.

> > Like I said, this is my first patch. 
> 
> We're sometimes not as welcoming to newcomers as we could be, so please
> bear with us.  Let me know if anything in this email is unclear.

x2 from me!

> As noted in another reply, there are lots of places in the code where
> the patch touches lines that it doesn't need to: generally formatting
> and whitespace changes.
> 
> We have over 30 years of source history which we sometimes need to look
> back on, and RTL is some of the oldest code in the compiler, so we want
> to minimize "churn" to keep tools like "git blame" useful.

Not to mention that many of those changes violated our coding style, or
even look like an automated formatter going haywire.  And, of course,
such changes should be separate patches, if done at all!


Segher
diff mbox series

Patch

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f999e2cba43..1fd2c94c873 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,46 @@ 
+2022-11-26  Charlie Sale   <softwaresale01@gmail.com>
+
+	* rtl.h (PLUS_P): RTL addition predicate
+	(MINUS_P): RTL subtraction predicate
+	(MULT_P): RTL multiplication predicate
+	* alias.cc: use RTL predicates
+	* auto-inc-dec.cc: use RTL predicates
+	* calls.cc: use RTL predicates
+	* cfgexpand.cc: use RTL predicates
+	* combine-stack-adj.cc: use RTL predicates
+	* combine.cc: use RTL predicates
+	* compare-elim.cc: use RTL predicates
+	* cse.cc: use RTL predicates
+	* cselib.cc: use RTL predicates
+	* dce.cc: use RTL predicates
+	* dwarf2cfi.cc: use RTL predicates
+	* dwarf2out.cc: use RTL predicates
+	* emit-rtl.cc: use RTL predicates
+	* explow.cc: use RTL predicates
+	* expr.cc: use RTL predicates
+	* final.cc: use RTL predicates
+	* function.cc: use RTL predicates
+	* fwprop.cc: use RTL predicates
+	* haifa-sched.cc: use RTL predicates
+	* ifcvt.cc: use RTL predicates
+	* ira.cc: use RTL predicates
+	* loop-doloop.cc: use RTL predicates
+	* loop-iv.cc: use RTL predicates
+	* lra-constraints.cc: use RTL predicates
+	* lra-eliminations.cc: use RTL predicates
+	* lra.cc: use RTL predicates
+	* modulo-sched.cc: use RTL predicates
+	* postreload.cc: use RTL predicates
+	* reginfo.cc: use RTL predicates
+	* reload.cc: use RTL predicates
+	* reload1.cc: use RTL predicates
+	* reorg.cc: use RTL predicates
+	* rtl.cc: use RTL predicates
+	* rtlanal.cc: use RTL predicates
+	* sched-deps.cc: use RTL predicates
+	* simplify-rtx.cc: use RTL predicates
+	* var-tracking.cc: use RTL predicates
+
 2022-11-25  Sandra Loosemore  <sandra@codesourcery.com>
 
 	* common.opt (fopenmp-target-simd-clone): New option.
diff --git a/gcc/alias.cc b/gcc/alias.cc
index c62837dd854..2d9bd79fe21 100644
--- a/gcc/alias.cc
+++ b/gcc/alias.cc
@@ -1473,7 +1473,7 @@  find_base_value (rtx src)
 	 otherwise.  */
       if (copying_arguments
 	  && (XEXP (src, 0) == arg_pointer_rtx
-	      || (GET_CODE (XEXP (src, 0)) == PLUS
+	      || (PLUS_P (XEXP (src, 0))
 		  && XEXP (XEXP (src, 0), 0) == arg_pointer_rtx)))
 	return arg_base_value;
       return 0;
@@ -1790,7 +1790,7 @@  canon_rtx (rtx x)
 	return canon_rtx (t);
     }
 
-  if (GET_CODE (x) == PLUS)
+  if (PLUS_P (x))
     {
       rtx x0 = canon_rtx (XEXP (x, 0));
       rtx x1 = canon_rtx (XEXP (x, 1));
@@ -2357,19 +2357,17 @@  get_addr (rtx x)
 
   if (GET_CODE (x) != VALUE)
     {
-      if ((GET_CODE (x) == PLUS || GET_CODE (x) == MINUS)
-	  && GET_CODE (XEXP (x, 0)) == VALUE
+      if ((PLUS_P (x) || MINUS_P (x)) && GET_CODE (XEXP (x, 0)) == VALUE
 	  && CONST_SCALAR_INT_P (XEXP (x, 1)))
 	{
 	  rtx op0 = get_addr (XEXP (x, 0));
 	  if (op0 != XEXP (x, 0))
 	    {
 	      poly_int64 c;
-	      if (GET_CODE (x) == PLUS
-		  && poly_int_rtx_p (XEXP (x, 1), &c))
+	      if (PLUS_P (x) && poly_int_rtx_p (XEXP (x, 1), &c))
 		return plus_constant (GET_MODE (x), op0, c);
-	      return simplify_gen_binary (GET_CODE (x), GET_MODE (x),
-					  op0, XEXP (x, 1));
+	      return simplify_gen_binary (GET_CODE (x), GET_MODE (x), op0,
+					  XEXP (x, 1));
 	    }
 	}
       return x;
@@ -2570,7 +2568,7 @@  memrefs_conflict_p (poly_int64 xsize, rtx x, poly_int64 ysize, rtx y,
   /* This code used to check for conflicts involving stack references and
      globals but the base address alias code now handles these cases.  */
 
-  if (GET_CODE (x) == PLUS)
+  if (PLUS_P (x))
     {
       /* The fact that X is canonicalized means that this
 	 PLUS rtx is canonicalized.  */
@@ -2585,7 +2583,7 @@  memrefs_conflict_p (poly_int64 xsize, rtx x, poly_int64 ysize, rtx y,
 	return memrefs_conflict_p (xsize, x0, ysize, const0_rtx, c);
 
       poly_int64 cx1, cy1;
-      if (GET_CODE (y) == PLUS)
+      if (PLUS_P (y))
 	{
 	  /* The fact that Y is canonicalized means that this
 	     PLUS rtx is canonicalized.  */
@@ -2617,7 +2615,7 @@  memrefs_conflict_p (poly_int64 xsize, rtx x, poly_int64 ysize, rtx y,
       else if (poly_int_rtx_p (x1, &cx1))
 	return memrefs_conflict_p (xsize, x0, ysize, y, c - cx1);
     }
-  else if (GET_CODE (y) == PLUS)
+  else if (PLUS_P (y))
     {
       /* The fact that Y is canonicalized means that this
 	 PLUS rtx is canonicalized.  */
@@ -3506,13 +3504,13 @@  init_alias_analysis (void)
 							XEXP (note, 0)))
 			{
 			  set_reg_known_value (regno, XEXP (note, 0));
-			  set_reg_known_equiv_p (regno,
-						 REG_NOTE_KIND (note) == REG_EQUIV);
+			  set_reg_known_equiv_p (regno, REG_NOTE_KIND (note)
+							  == REG_EQUIV);
 			}
-		      else if (DF_REG_DEF_COUNT (regno) == 1
-			       && GET_CODE (src) == PLUS
+		      else if (DF_REG_DEF_COUNT (regno) == 1 && PLUS_P (src)
 			       && REG_P (XEXP (src, 0))
-			       && (t = get_reg_known_value (REGNO (XEXP (src, 0))))
+			       && (t = get_reg_known_value (
+				     REGNO (XEXP (src, 0))))
 			       && poly_int_rtx_p (XEXP (src, 1), &offset))
 			{
 			  t = plus_constant (GET_MODE (src), t, offset);
diff --git a/gcc/auto-inc-dec.cc b/gcc/auto-inc-dec.cc
index 481e7af6895..d4ca5d8954f 100644
--- a/gcc/auto-inc-dec.cc
+++ b/gcc/auto-inc-dec.cc
@@ -882,7 +882,7 @@  parse_add_or_inc (rtx_insn *insn, bool before_mem)
     {
       /* Process a = b + c where c is a const.  */
       inc_insn.reg1_is_const = true;
-      if (GET_CODE (SET_SRC (pat)) == PLUS)
+      if (PLUS_P (SET_SRC (pat)))
 	{
 	  inc_insn.reg1 = XEXP (SET_SRC (pat), 1);
 	  inc_insn.reg1_val = INTVAL (inc_insn.reg1);
@@ -895,8 +895,7 @@  parse_add_or_inc (rtx_insn *insn, bool before_mem)
       return true;
     }
   else if ((HAVE_PRE_MODIFY_REG || HAVE_POST_MODIFY_REG)
-	   && (REG_P (XEXP (SET_SRC (pat), 1)))
-	   && GET_CODE (SET_SRC (pat)) == PLUS)
+	   && (REG_P (XEXP (SET_SRC (pat), 1))) && PLUS_P (SET_SRC (pat)))
     {
       /* Process a = b + c where c is a reg.  */
       inc_insn.reg1 = XEXP (SET_SRC (pat), 1);
@@ -964,8 +963,7 @@  find_address (rtx *address_of_x, rtx findreg)
       mem_insn.reg1 = GEN_INT (mem_insn.reg1_val);
       return -1;
     }
-  if (code == MEM && findreg == inc_insn.reg_res
-      && GET_CODE (XEXP (x, 0)) == PLUS
+  if (code == MEM && findreg == inc_insn.reg_res && PLUS_P (XEXP (x, 0))
       && rtx_equal_p (XEXP (XEXP (x, 0), 0), inc_insn.reg_res))
     {
       rtx b = XEXP (XEXP (x, 0), 1);
@@ -1357,8 +1355,7 @@  find_mem (rtx *address_of_x)
       if (find_inc (true))
 	return true;
     }
-  if (code == MEM && GET_CODE (XEXP (x, 0)) == PLUS
-      && REG_P (XEXP (XEXP (x, 0), 0)))
+  if (code == MEM && PLUS_P (XEXP (x, 0)) && REG_P (XEXP (XEXP (x, 0), 0)))
     {
       rtx reg1 = XEXP (XEXP (x, 0), 1);
       mem_insn.mem_loc = address_of_x;
diff --git a/gcc/calls.cc b/gcc/calls.cc
index 6dd6f73e978..1c00f47c8dd 100644
--- a/gcc/calls.cc
+++ b/gcc/calls.cc
@@ -1782,7 +1782,7 @@  compute_argument_addresses (struct arg_data *args, rtx argblock, int num_actuals
       int i;
       poly_int64 arg_offset = 0;
 
-      if (GET_CODE (argblock) == PLUS)
+      if (PLUS_P (argblock))
 	{
 	  arg_reg = XEXP (argblock, 0);
 	  arg_offset = rtx_to_poly_int64 (XEXP (argblock, 1));
@@ -1991,7 +1991,7 @@  internal_arg_pointer_based_exp (const_rtx rtl, bool toplevel)
     return NULL_RTX;
 
   poly_int64 offset;
-  if (GET_CODE (rtl) == PLUS && poly_int_rtx_p (XEXP (rtl, 1), &offset))
+  if (PLUS_P (rtl) && poly_int_rtx_p (XEXP (rtl, 1), &offset))
     {
       rtx val = internal_arg_pointer_based_exp (XEXP (rtl, 0), toplevel);
       if (val == NULL_RTX || val == pc_rtx)
@@ -4900,7 +4900,7 @@  store_one_arg (struct arg_data *arg, rtx argblock, int flags,
 	    {
 	      /* stack_slot is negative, but we want to index stack_usage_map
 		 with positive values.  */
-	      if (GET_CODE (XEXP (arg->stack_slot, 0)) == PLUS)
+	      if (PLUS_P (XEXP (arg->stack_slot, 0)))
 		{
 		  rtx offset = XEXP (XEXP (arg->stack_slot, 0), 1);
 		  upper_bound = -rtx_to_poly_int64 (offset) + 1;
@@ -4912,7 +4912,7 @@  store_one_arg (struct arg_data *arg, rtx argblock, int flags,
 	    }
 	  else
 	    {
-	      if (GET_CODE (XEXP (arg->stack_slot, 0)) == PLUS)
+	      if (PLUS_P (XEXP (arg->stack_slot, 0)))
 		{
 		  rtx offset = XEXP (XEXP (arg->stack_slot, 0), 1);
 		  lower_bound = rtx_to_poly_int64 (offset);
diff --git a/gcc/cfgexpand.cc b/gcc/cfgexpand.cc
index dd29ffffc03..e839f30378d 100644
--- a/gcc/cfgexpand.cc
+++ b/gcc/cfgexpand.cc
@@ -4277,8 +4277,7 @@  convert_debug_memory_address (scalar_int_mode mode, rtx x,
 	case SUBREG:
 	  if ((SUBREG_PROMOTED_VAR_P (x)
 	       || (REG_P (SUBREG_REG (x)) && REG_POINTER (SUBREG_REG (x)))
-	       || (GET_CODE (SUBREG_REG (x)) == PLUS
-		   && REG_P (XEXP (SUBREG_REG (x), 0))
+	       || (PLUS_P (SUBREG_REG (x)) && REG_P (XEXP (SUBREG_REG (x), 0))
 		   && REG_POINTER (XEXP (SUBREG_REG (x), 0))
 		   && CONST_INT_P (XEXP (SUBREG_REG (x), 1))))
 	      && GET_MODE (SUBREG_REG (x)) == mode)
@@ -4398,12 +4397,10 @@  expand_debug_parm_decl (tree decl)
       return rtl;
     }
 
-  if (incoming
-      && GET_MODE (incoming) != BLKmode
-      && !TREE_ADDRESSABLE (decl)
+  if (incoming && GET_MODE (incoming) != BLKmode && !TREE_ADDRESSABLE (decl)
       && MEM_P (incoming)
       && (XEXP (incoming, 0) == virtual_incoming_args_rtx
-	  || (GET_CODE (XEXP (incoming, 0)) == PLUS
+	  || (PLUS_P (XEXP (incoming, 0))
 	      && XEXP (XEXP (incoming, 0), 0) == virtual_incoming_args_rtx
 	      && CONST_INT_P (XEXP (XEXP (incoming, 0), 1)))))
     return copy_rtx (incoming);
@@ -4687,7 +4684,7 @@  expand_debug_expr (tree exp)
       if (TREE_CODE (exp) == MEM_REF)
 	{
 	  if (GET_CODE (op0) == DEBUG_IMPLICIT_PTR
-	      || (GET_CODE (op0) == PLUS
+	      || (PLUS_P (op0)
 		  && GET_CODE (XEXP (op0, 0)) == DEBUG_IMPLICIT_PTR))
 	    /* (mem (debug_implicit_ptr)) might confuse aliasing.
 	       Instead just use get_inner_reference.  */
@@ -5204,11 +5201,10 @@  expand_debug_expr (tree exp)
 	      && TREE_CODE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0))
 		 == ADDR_EXPR)
 	    {
-	      op0 = expand_debug_expr (TREE_OPERAND (TREE_OPERAND (exp, 0),
-						     0));
+	      op0 = expand_debug_expr (TREE_OPERAND (TREE_OPERAND (exp, 0), 0));
 	      if (op0 != NULL
 		  && (GET_CODE (op0) == DEBUG_IMPLICIT_PTR
-		      || (GET_CODE (op0) == PLUS
+		      || (PLUS_P (op0)
 			  && GET_CODE (XEXP (op0, 0)) == DEBUG_IMPLICIT_PTR
 			  && CONST_INT_P (XEXP (op0, 1)))))
 		{
diff --git a/gcc/combine-stack-adj.cc b/gcc/combine-stack-adj.cc
index e76d60a8f7e..ce3276513eb 100644
--- a/gcc/combine-stack-adj.cc
+++ b/gcc/combine-stack-adj.cc
@@ -101,8 +101,7 @@  stack_memref_p (rtx x)
 
   if (x == stack_pointer_rtx)
     return 1;
-  if (GET_CODE (x) == PLUS
-      && XEXP (x, 0) == stack_pointer_rtx
+  if (PLUS_P (x) && XEXP (x, 0) == stack_pointer_rtx
       && CONST_INT_P (XEXP (x, 1)))
     return 1;
 
@@ -570,18 +569,16 @@  combine_stack_adjustments_for_block (basic_block bb, bitmap live)
 	  HOST_WIDE_INT this_adjust = 0;
 
 	  /* Find constant additions to the stack pointer.  */
-	  if (dest == stack_pointer_rtx
-	      && GET_CODE (src) == PLUS
+	  if (dest == stack_pointer_rtx && PLUS_P (src)
 	      && XEXP (src, 0) == stack_pointer_rtx
 	      && CONST_INT_P (XEXP (src, 1)))
 	    this_adjust = INTVAL (XEXP (src, 1));
 	  /* Or such additions turned by postreload into a store of
 	     equivalent register.  */
-	  else if (dest == stack_pointer_rtx
-		   && REG_P (src)
+	  else if (dest == stack_pointer_rtx && REG_P (src)
 		   && REGNO (src) != STACK_POINTER_REGNUM)
 	    if (rtx equal = find_reg_note (insn, REG_EQUAL, NULL_RTX))
-	      if (GET_CODE (XEXP (equal, 0)) == PLUS
+	      if (PLUS_P (XEXP (equal, 0))
 		  && XEXP (XEXP (equal, 0), 0) == stack_pointer_rtx
 		  && CONST_INT_P (XEXP (XEXP (equal, 0), 1)))
 		this_adjust = INTVAL (XEXP (XEXP (equal, 0), 1));
@@ -713,27 +710,25 @@  combine_stack_adjustments_for_block (basic_block bb, bitmap live)
 	     be an allocation.  */
 	  if (MEM_P (dest)
 	      && ((STACK_GROWS_DOWNWARD
-		   ? (GET_CODE (XEXP (dest, 0)) == PRE_DEC
-		      && known_eq (last_sp_adjust,
-				   GET_MODE_SIZE (GET_MODE (dest))))
-		   : (GET_CODE (XEXP (dest, 0)) == PRE_INC
-		      && known_eq (-last_sp_adjust,
-				   GET_MODE_SIZE (GET_MODE (dest)))))
-		  || ((STACK_GROWS_DOWNWARD
-		       ? last_sp_adjust >= 0 : last_sp_adjust <= 0)
+		     ? (GET_CODE (XEXP (dest, 0)) == PRE_DEC
+			&& known_eq (last_sp_adjust,
+				     GET_MODE_SIZE (GET_MODE (dest))))
+		     : (GET_CODE (XEXP (dest, 0)) == PRE_INC
+			&& known_eq (-last_sp_adjust,
+				     GET_MODE_SIZE (GET_MODE (dest)))))
+		  || ((STACK_GROWS_DOWNWARD ? last_sp_adjust >= 0
+					    : last_sp_adjust <= 0)
 		      && GET_CODE (XEXP (dest, 0)) == PRE_MODIFY
-		      && GET_CODE (XEXP (XEXP (dest, 0), 1)) == PLUS
-		      && XEXP (XEXP (XEXP (dest, 0), 1), 0)
-			 == stack_pointer_rtx
+		      && PLUS_P (XEXP (XEXP (dest, 0), 1))
+		      && XEXP (XEXP (XEXP (dest, 0), 1), 0) == stack_pointer_rtx
 		      && GET_CODE (XEXP (XEXP (XEXP (dest, 0), 1), 1))
-		         == CONST_INT
+			   == CONST_INT
 		      && INTVAL (XEXP (XEXP (XEXP (dest, 0), 1), 1))
-		         == -last_sp_adjust))
+			   == -last_sp_adjust))
 	      && XEXP (XEXP (dest, 0), 0) == stack_pointer_rtx
 	      && !reg_mentioned_p (stack_pointer_rtx, src)
 	      && memory_address_p (GET_MODE (dest), stack_pointer_rtx)
-	      && try_apply_stack_adjustment (insn, reflist, 0,
-					     -last_sp_adjust,
+	      && try_apply_stack_adjustment (insn, reflist, 0, -last_sp_adjust,
 					     NULL, NULL))
 	    {
 	      if (last2_sp_set)
diff --git a/gcc/combine.cc b/gcc/combine.cc
index a5fabf397f7..d63455efd1f 100644
--- a/gcc/combine.cc
+++ b/gcc/combine.cc
@@ -3016,19 +3016,17 @@  try_combine (rtx_insn *i3, rtx_insn *i2, rtx_insn *i1, rtx_insn *i0,
   /* See if any of the insns is a MULT operation.  Unless one is, we will
      reject a combination that is, since it must be slower.  Be conservative
      here.  */
-  if (GET_CODE (i2src) == MULT
-      || (i1 != 0 && GET_CODE (i1src) == MULT)
-      || (i0 != 0 && GET_CODE (i0src) == MULT)
-      || (GET_CODE (PATTERN (i3)) == SET
-	  && GET_CODE (SET_SRC (PATTERN (i3))) == MULT))
+  if (MULT_P (i2src) || (i1 != 0 && MULT_P (i1src))
+      || (i0 != 0 && MULT_P (i0src))
+      || (GET_CODE (PATTERN (i3)) == SET && MULT_P (SET_SRC (PATTERN (i3)))))
     have_mult = 1;
 
-  /* If I3 has an inc, then give up if I1 or I2 uses the reg that is inc'd.
-     We used to do this EXCEPT in one case: I3 has a post-inc in an
-     output operand.  However, that exception can give rise to insns like
-	mov r3,(r3)+
-     which is a famous insn on the PDP-11 where the value of r3 used as the
-     source was model-dependent.  Avoid this sort of thing.  */
+    /* If I3 has an inc, then give up if I1 or I2 uses the reg that is inc'd.
+       We used to do this EXCEPT in one case: I3 has a post-inc in an
+       output operand.  However, that exception can give rise to insns like
+	  mov r3,(r3)+
+       which is a famous insn on the PDP-11 where the value of r3 used as the
+       source was model-dependent.  Avoid this sort of thing.  */
 
 #if 0
   if (!(GET_CODE (PATTERN (i3)) == SET
@@ -3383,15 +3381,12 @@  try_combine (rtx_insn *i3, rtx_insn *i2, rtx_insn *i1, rtx_insn *i0,
 
   /* Fail if an autoincrement side-effect has been duplicated.  Be careful
      to count all the ways that I2SRC and I1SRC can be used.  */
-  if ((FIND_REG_INC_NOTE (i2, NULL_RTX) != 0
-       && i2_is_used + added_sets_2 > 1)
+  if ((FIND_REG_INC_NOTE (i2, NULL_RTX) != 0 && i2_is_used + added_sets_2 > 1)
       || (i1 != 0 && FIND_REG_INC_NOTE (i1, NULL_RTX) != 0
-	  && (i1_is_used + added_sets_1 + (added_sets_2 && i1_feeds_i2_n)
-	      > 1))
+	  && (i1_is_used + added_sets_1 + (added_sets_2 && i1_feeds_i2_n) > 1))
       || (i0 != 0 && FIND_REG_INC_NOTE (i0, NULL_RTX) != 0
-	  && (n_occurrences + added_sets_0
-	      + (added_sets_1 && i0_feeds_i1_n)
-	      + (added_sets_2 && i0_feeds_i2_n)
+	  && (n_occurrences + added_sets_0 + (added_sets_1 && i0_feeds_i1_n)
+		+ (added_sets_2 && i0_feeds_i2_n)
 	      > 1))
       /* Fail if we tried to make a new register.  */
       || max_reg_num () != maxreg
@@ -3399,8 +3394,8 @@  try_combine (rtx_insn *i3, rtx_insn *i2, rtx_insn *i1, rtx_insn *i0,
       || GET_CODE (newpat) == CLOBBER
       /* Fail if this new pattern is a MULT and we didn't have one before
 	 at the outer level.  */
-      || (GET_CODE (newpat) == SET && GET_CODE (SET_SRC (newpat)) == MULT
-	  && ! have_mult))
+      || GET_CODE (newpat) == SET
+	   && MULT_P (GET_CODE (SET_SRC (newpat)) && !have_mult))
     {
       undo_all ();
       return 0;
@@ -3766,8 +3761,7 @@  try_combine (rtx_insn *i3, rtx_insn *i2, rtx_insn *i1, rtx_insn *i0,
 	    }
 
 	  /* Similarly for (plus (mult FOO (const_int pow2))).  */
-	  if (split_code == PLUS
-	      && GET_CODE (XEXP (*split, 0)) == MULT
+	  if (split_code == PLUS && MULT_P (XEXP (*split, 0))
 	      && CONST_INT_P (XEXP (XEXP (*split, 0), 1))
 	      && INTVAL (XEXP (XEXP (*split, 0), 1)) > 0
 	      && (i = exact_log2 (UINTVAL (XEXP (XEXP (*split, 0), 1)))) >= 0)
@@ -4880,14 +4874,13 @@  find_split_point (rtx *loc, rtx_insn *insn, bool set_src)
 	 the machine-specific way to split large constants.  We use
 	 the first pseudo-reg (one of the virtual regs) as a placeholder;
 	 it will not remain in the result.  */
-      if (GET_CODE (XEXP (x, 0)) == PLUS
-	  && CONST_INT_P (XEXP (XEXP (x, 0), 1))
-	  && ! memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
-					    MEM_ADDR_SPACE (x)))
+      if (PLUS_P (XEXP (x, 0)) && CONST_INT_P (XEXP (XEXP (x, 0), 1))
+	  && !memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
+					   MEM_ADDR_SPACE (x)))
 	{
 	  rtx reg = regno_reg_rtx[FIRST_PSEUDO_REGISTER];
-	  rtx_insn *seq = combine_split_insns (gen_rtx_SET (reg, XEXP (x, 0)),
-					       subst_insn);
+	  rtx_insn *seq
+	    = combine_split_insns (gen_rtx_SET (reg, XEXP (x, 0)), subst_insn);
 
 	  /* This should have produced two insns, each of which sets our
 	     placeholder.  If the source of the second is a valid address,
@@ -4935,12 +4928,11 @@  find_split_point (rtx *loc, rtx_insn *insn, bool set_src)
 	  /* If that didn't work and we have a nested plus, like:
 	     ((REG1 * CONST1) + REG2) + CONST2 and (REG1 + REG2) + CONST2
 	     is valid address, try to split (REG1 * CONST1).  */
-	  if (GET_CODE (XEXP (XEXP (x, 0), 0)) == PLUS
+	  if (PLUS_P (XEXP (XEXP (x, 0), 0))
 	      && !OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 0))
 	      && OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 1))
-	      && ! (GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 0)) == SUBREG
-		    && OBJECT_P (SUBREG_REG (XEXP (XEXP (XEXP (x, 0),
-							 0), 0)))))
+	      && !(GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 0)) == SUBREG
+		   && OBJECT_P (SUBREG_REG (XEXP (XEXP (XEXP (x, 0), 0), 0)))))
 	    {
 	      rtx tem = XEXP (XEXP (XEXP (x, 0), 0), 0);
 	      XEXP (XEXP (XEXP (x, 0), 0), 0) = reg;
@@ -4952,12 +4944,12 @@  find_split_point (rtx *loc, rtx_insn *insn, bool set_src)
 		}
 	      XEXP (XEXP (XEXP (x, 0), 0), 0) = tem;
 	    }
-	  else if (GET_CODE (XEXP (XEXP (x, 0), 0)) == PLUS
+	  else if (PLUS_P (XEXP (XEXP (x, 0), 0))
 		   && OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 0))
 		   && !OBJECT_P (XEXP (XEXP (XEXP (x, 0), 0), 1))
-		   && ! (GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 1)) == SUBREG
-			 && OBJECT_P (SUBREG_REG (XEXP (XEXP (XEXP (x, 0),
-							      0), 1)))))
+		   && !(GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 1)) == SUBREG
+			&& OBJECT_P (
+			  SUBREG_REG (XEXP (XEXP (XEXP (x, 0), 0), 1)))))
 	    {
 	      rtx tem = XEXP (XEXP (XEXP (x, 0), 0), 1);
 	      XEXP (XEXP (XEXP (x, 0), 0), 1) = reg;
@@ -4982,13 +4974,13 @@  find_split_point (rtx *loc, rtx_insn *insn, bool set_src)
 
       /* If we have a PLUS whose first operand is complex, try computing it
          separately by making a split there.  */
-      if (GET_CODE (XEXP (x, 0)) == PLUS
-          && ! memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
-					    MEM_ADDR_SPACE (x))
-          && ! OBJECT_P (XEXP (XEXP (x, 0), 0))
-          && ! (GET_CODE (XEXP (XEXP (x, 0), 0)) == SUBREG
-                && OBJECT_P (SUBREG_REG (XEXP (XEXP (x, 0), 0)))))
-        return &XEXP (XEXP (x, 0), 0);
+      if (PLUS_P (XEXP (x, 0))
+	  && !memory_address_addr_space_p (GET_MODE (x), XEXP (x, 0),
+					   MEM_ADDR_SPACE (x))
+	  && !OBJECT_P (XEXP (XEXP (x, 0), 0))
+	  && !(GET_CODE (XEXP (XEXP (x, 0), 0)) == SUBREG
+	       && OBJECT_P (SUBREG_REG (XEXP (XEXP (x, 0), 0)))))
+	return &XEXP (XEXP (x, 0), 0);
       break;
 
     case SET:
@@ -5239,7 +5231,7 @@  find_split_point (rtx *loc, rtx_insn *insn, bool set_src)
       /* Canonicalization can produce (minus A (mult B C)), where C is a
 	 constant.  It may be better to try splitting (plus (mult B -C) A)
 	 instead if this isn't a multiply by a power of two.  */
-      if (set_src && code == MINUS && GET_CODE (XEXP (x, 1)) == MULT
+      if (set_src && code == MINUS && MULT_P (XEXP (x, 1))
 	  && GET_CODE (XEXP (XEXP (x, 1), 1)) == CONST_INT
 	  && !pow2p_hwi (INTVAL (XEXP (XEXP (x, 1), 1))))
 	{
@@ -5259,10 +5251,10 @@  find_split_point (rtx *loc, rtx_insn *insn, bool set_src)
          the SET_SRC, we likely do not have such an instruction and it's
          worthless to try this split.  */
       if (!set_src
-	  && (GET_CODE (XEXP (x, 0)) == MULT
+	  && (MULT_P (XEXP (x, 0))
 	      || (GET_CODE (XEXP (x, 0)) == ASHIFT
 		  && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT)))
-        return loc;
+	return loc;
 
     default:
       break;
@@ -6092,7 +6084,7 @@  combine_simplify_rtx (rtx x, machine_mode op0_mode, int in_dest,
 	 the inverse distributive law to see if things simplify.  This
 	 occurs mostly in addresses, often when unrolling loops.  */
 
-      if (GET_CODE (XEXP (x, 0)) == PLUS)
+      if (PLUS_P (XEXP (x, 0)))
 	{
 	  rtx result = distribute_and_simplify_rtx (x, 0);
 	  if (result)
@@ -6584,23 +6576,20 @@  simplify_if_then_else (rtx x)
       scalar_int_mode m = int_mode;
       rtx z = 0, c1 = NULL_RTX;
 
-      if ((GET_CODE (t) == PLUS || GET_CODE (t) == MINUS
-	   || GET_CODE (t) == IOR || GET_CODE (t) == XOR
-	   || GET_CODE (t) == ASHIFT
+      if ((PLUS_P (t) || MINUS_P (t) || GET_CODE (t) == IOR
+	   || GET_CODE (t) == XOR || GET_CODE (t) == ASHIFT
 	   || GET_CODE (t) == LSHIFTRT || GET_CODE (t) == ASHIFTRT)
 	  && rtx_equal_p (XEXP (t, 0), f))
 	c1 = XEXP (t, 1), op = GET_CODE (t), z = f;
 
       /* If an identity-zero op is commutative, check whether there
 	 would be a match if we swapped the operands.  */
-      else if ((GET_CODE (t) == PLUS || GET_CODE (t) == IOR
-		|| GET_CODE (t) == XOR)
+      else if ((PLUS_P (t) || GET_CODE (t) == IOR || GET_CODE (t) == XOR)
 	       && rtx_equal_p (XEXP (t, 1), f))
 	c1 = XEXP (t, 0), op = GET_CODE (t), z = f;
       else if (GET_CODE (t) == SIGN_EXTEND
-	       && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
-	       && (GET_CODE (XEXP (t, 0)) == PLUS
-		   || GET_CODE (XEXP (t, 0)) == MINUS
+	       && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
+	       && (PLUS_P (XEXP (t, 0)) || MINUS_P (XEXP (t, 0))
 		   || GET_CODE (XEXP (t, 0)) == IOR
 		   || GET_CODE (XEXP (t, 0)) == XOR
 		   || GET_CODE (XEXP (t, 0)) == ASHIFT
@@ -6610,35 +6599,31 @@  simplify_if_then_else (rtx x)
 	       && subreg_lowpart_p (XEXP (XEXP (t, 0), 0))
 	       && rtx_equal_p (SUBREG_REG (XEXP (XEXP (t, 0), 0)), f)
 	       && (num_sign_bit_copies (f, GET_MODE (f))
-		   > (unsigned int)
-		     (GET_MODE_PRECISION (int_mode)
-		      - GET_MODE_PRECISION (inner_mode))))
+		   > (unsigned int) (GET_MODE_PRECISION (int_mode)
+				     - GET_MODE_PRECISION (inner_mode))))
 	{
 	  c1 = XEXP (XEXP (t, 0), 1); z = f; op = GET_CODE (XEXP (t, 0));
 	  extend_op = SIGN_EXTEND;
 	  m = inner_mode;
 	}
       else if (GET_CODE (t) == SIGN_EXTEND
-	       && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
-	       && (GET_CODE (XEXP (t, 0)) == PLUS
-		   || GET_CODE (XEXP (t, 0)) == IOR
+	       && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
+	       && (PLUS_P (XEXP (t, 0)) || GET_CODE (XEXP (t, 0)) == IOR
 		   || GET_CODE (XEXP (t, 0)) == XOR)
 	       && GET_CODE (XEXP (XEXP (t, 0), 1)) == SUBREG
 	       && subreg_lowpart_p (XEXP (XEXP (t, 0), 1))
 	       && rtx_equal_p (SUBREG_REG (XEXP (XEXP (t, 0), 1)), f)
 	       && (num_sign_bit_copies (f, GET_MODE (f))
-		   > (unsigned int)
-		     (GET_MODE_PRECISION (int_mode)
-		      - GET_MODE_PRECISION (inner_mode))))
+		   > (unsigned int) (GET_MODE_PRECISION (int_mode)
+				     - GET_MODE_PRECISION (inner_mode))))
 	{
 	  c1 = XEXP (XEXP (t, 0), 0); z = f; op = GET_CODE (XEXP (t, 0));
 	  extend_op = SIGN_EXTEND;
 	  m = inner_mode;
 	}
       else if (GET_CODE (t) == ZERO_EXTEND
-	       && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
-	       && (GET_CODE (XEXP (t, 0)) == PLUS
-		   || GET_CODE (XEXP (t, 0)) == MINUS
+	       && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
+	       && (PLUS_P (XEXP (t, 0)) || MINUS_P (XEXP (t, 0))
 		   || GET_CODE (XEXP (t, 0)) == IOR
 		   || GET_CODE (XEXP (t, 0)) == XOR
 		   || GET_CODE (XEXP (t, 0)) == ASHIFT
@@ -6657,9 +6642,8 @@  simplify_if_then_else (rtx x)
 	  m = inner_mode;
 	}
       else if (GET_CODE (t) == ZERO_EXTEND
-	       && is_a <scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
-	       && (GET_CODE (XEXP (t, 0)) == PLUS
-		   || GET_CODE (XEXP (t, 0)) == IOR
+	       && is_a<scalar_int_mode> (GET_MODE (XEXP (t, 0)), &inner_mode)
+	       && (PLUS_P (XEXP (t, 0)) || GET_CODE (XEXP (t, 0)) == IOR
 		   || GET_CODE (XEXP (t, 0)) == XOR)
 	       && GET_CODE (XEXP (XEXP (t, 0), 1)) == SUBREG
 	       && HWI_COMPUTABLE_MODE_P (int_mode)
@@ -7386,8 +7370,7 @@  expand_field_assignment (const_rtx x)
 	    {
 	      if (CONST_INT_P (pos))
 		pos = GEN_INT (inner_len - len - INTVAL (pos));
-	      else if (GET_CODE (pos) == MINUS
-		       && CONST_INT_P (XEXP (pos, 1))
+	      else if (MINUS_P (pos) && CONST_INT_P (XEXP (pos, 1))
 		       && INTVAL (XEXP (pos, 1)) == inner_len - len)
 		/* If position is ADJUST - X, new position is X.  */
 		pos = XEXP (pos, 0);
@@ -7541,9 +7524,8 @@  make_extraction (machine_mode mode, rtx inner, HOST_WIDE_INT pos,
       if (new_rtx != 0)
 	return gen_rtx_ASHIFT (mode, new_rtx, XEXP (inner, 1));
     }
-  else if (GET_CODE (inner) == MULT
-	   && CONST_INT_P (XEXP (inner, 1))
-	   && pos_rtx == 0 && pos == 0)
+  else if (MULT_P (inner) && CONST_INT_P (XEXP (inner, 1)) && pos_rtx == 0
+	   && pos == 0)
     {
       /* We're extracting the least significant bits of an rtx
 	 (mult X (const_int 2^C)), where LEN > C.  Extract the
@@ -8017,19 +7999,18 @@  make_compound_operation_int (scalar_int_mode mode, rtx *x_ptr,
       rhs = XEXP (x, 1);
       lhs = make_compound_operation (lhs, next_code);
       rhs = make_compound_operation (rhs, next_code);
-      if (GET_CODE (lhs) == MULT && GET_CODE (XEXP (lhs, 0)) == NEG)
+      if (MULT_P (lhs) && GET_CODE (XEXP (lhs, 0)) == NEG)
 	{
 	  tem = simplify_gen_binary (MULT, mode, XEXP (XEXP (lhs, 0), 0),
 				     XEXP (lhs, 1));
 	  new_rtx = simplify_gen_binary (MINUS, mode, rhs, tem);
 	}
-      else if (GET_CODE (lhs) == MULT
+      else if (MULT_P (lhs)
 	       && (CONST_INT_P (XEXP (lhs, 1)) && INTVAL (XEXP (lhs, 1)) < 0))
 	{
 	  tem = simplify_gen_binary (MULT, mode, XEXP (lhs, 0),
 				     simplify_gen_unary (NEG, mode,
-							 XEXP (lhs, 1),
-							 mode));
+							 XEXP (lhs, 1), mode));
 	  new_rtx = simplify_gen_binary (MINUS, mode, rhs, tem);
 	}
       else
@@ -8045,19 +8026,18 @@  make_compound_operation_int (scalar_int_mode mode, rtx *x_ptr,
       rhs = XEXP (x, 1);
       lhs = make_compound_operation (lhs, next_code);
       rhs = make_compound_operation (rhs, next_code);
-      if (GET_CODE (rhs) == MULT && GET_CODE (XEXP (rhs, 0)) == NEG)
+      if (MULT_P (rhs) && GET_CODE (XEXP (rhs, 0)) == NEG)
 	{
 	  tem = simplify_gen_binary (MULT, mode, XEXP (XEXP (rhs, 0), 0),
 				     XEXP (rhs, 1));
 	  return simplify_gen_binary (PLUS, mode, tem, lhs);
 	}
-      else if (GET_CODE (rhs) == MULT
+      else if (MULT_P (rhs)
 	       && (CONST_INT_P (XEXP (rhs, 1)) && INTVAL (XEXP (rhs, 1)) < 0))
 	{
 	  tem = simplify_gen_binary (MULT, mode, XEXP (rhs, 0),
 				     simplify_gen_unary (NEG, mode,
-							 XEXP (rhs, 1),
-							 mode));
+							 XEXP (rhs, 1), mode));
 	  return simplify_gen_binary (PLUS, mode, tem, lhs);
 	}
       else
@@ -9288,11 +9268,10 @@  if_then_else_cond (rtx x, rtx *ptrue, rtx *pfalse)
       /* See if we have PLUS, IOR, XOR, MINUS or UMAX, where one of the
 	 operands is zero when the other is nonzero, and vice-versa,
 	 and STORE_FLAG_VALUE is 1 or -1.  */
-
       if ((STORE_FLAG_VALUE == 1 || STORE_FLAG_VALUE == -1)
 	  && (code == PLUS || code == IOR || code == XOR || code == MINUS
 	      || code == UMAX)
-	  && GET_CODE (XEXP (x, 0)) == MULT && GET_CODE (XEXP (x, 1)) == MULT)
+	  && MULT_P (XEXP (x, 0)) && MULT_P (XEXP (x, 1)))
 	{
 	  rtx op0 = XEXP (XEXP (x, 0), 1);
 	  rtx op1 = XEXP (XEXP (x, 1), 1);
@@ -9300,8 +9279,7 @@  if_then_else_cond (rtx x, rtx *ptrue, rtx *pfalse)
 	  cond0 = XEXP (XEXP (x, 0), 0);
 	  cond1 = XEXP (XEXP (x, 1), 0);
 
-	  if (COMPARISON_P (cond0)
-	      && COMPARISON_P (cond1)
+	  if (COMPARISON_P (cond0) && COMPARISON_P (cond1)
 	      && SCALAR_INT_MODE_P (mode)
 	      && ((GET_CODE (cond0) == reversed_comparison_code (cond1, NULL)
 		   && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 0))
@@ -9310,15 +9288,14 @@  if_then_else_cond (rtx x, rtx *ptrue, rtx *pfalse)
 		       == reversed_comparison_code (cond1, NULL))
 		      && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 1))
 		      && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 0))))
-	      && ! side_effects_p (x))
+	      && !side_effects_p (x))
 	    {
 	      *ptrue = simplify_gen_binary (MULT, mode, op0, const_true_rtx);
-	      *pfalse = simplify_gen_binary (MULT, mode,
-					     (code == MINUS
-					      ? simplify_gen_unary (NEG, mode,
-								    op1, mode)
-					      : op1),
-					      const_true_rtx);
+	      *pfalse = simplify_gen_binary (
+		MULT, mode,
+		(code == MINUS ? simplify_gen_unary (NEG, mode, op1, mode)
+			       : op1),
+		const_true_rtx);
 	      return cond0;
 	    }
 	}
@@ -9327,25 +9304,24 @@  if_then_else_cond (rtx x, rtx *ptrue, rtx *pfalse)
 	 is always zero.  */
       if ((STORE_FLAG_VALUE == 1 || STORE_FLAG_VALUE == -1)
 	  && (code == MULT || code == AND || code == UMIN)
-	  && GET_CODE (XEXP (x, 0)) == MULT && GET_CODE (XEXP (x, 1)) == MULT)
-	{
-	  cond0 = XEXP (XEXP (x, 0), 0);
-	  cond1 = XEXP (XEXP (x, 1), 0);
-
-	  if (COMPARISON_P (cond0)
-	      && COMPARISON_P (cond1)
-	      && ((GET_CODE (cond0) == reversed_comparison_code (cond1, NULL)
-		   && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 0))
-		   && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 1)))
-		  || ((swap_condition (GET_CODE (cond0))
-		       == reversed_comparison_code (cond1, NULL))
-		      && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 1))
-		      && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 0))))
-	      && ! side_effects_p (x))
-	    {
-	      *ptrue = *pfalse = const0_rtx;
-	      return cond0;
-	    }
+    && MULT_P (XEXP (x, 0)) && MULT_P (XEXP (x, 1))
+	{
+	cond0 = XEXP (XEXP (x, 0), 0);
+	cond1 = XEXP (XEXP (x, 1), 0);
+
+	if (COMPARISON_P (cond0) && COMPARISON_P (cond1)
+	    && ((GET_CODE (cond0) == reversed_comparison_code (cond1, NULL)
+		 && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 0))
+		 && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 1)))
+		|| ((swap_condition (GET_CODE (cond0))
+		     == reversed_comparison_code (cond1, NULL))
+		    && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 1))
+		    && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 0))))
+	    && !side_effects_p (x))
+	  {
+	    *ptrue = *pfalse = const0_rtx;
+	    return cond0;
+	  }
 	}
     }
 
@@ -10100,7 +10076,7 @@  simplify_and_const_int_1 (scalar_int_mode mode, rtx varop,
      the AND and see if one of the operands simplifies to zero.  If so, we
      may eliminate it.  */
 
-  if (GET_CODE (varop) == PLUS
+  if (PLUS_P (varop)
       && pow2p_hwi (constop + 1))
     {
       rtx o0, o1;
@@ -10939,7 +10915,7 @@  simplify_shift_const_1 (enum rtx_code code, machine_mode result_mode,
 	     and STORE_FLAG_VALUE is 1 or we have a logical shift with
 	     STORE_FLAG_VALUE of -1, we have a (neg (le X 0)) operation.  */
 
-	  if (GET_CODE (varop) == IOR && GET_CODE (XEXP (varop, 0)) == PLUS
+	  if (GET_CODE (varop) == IOR && PLUS_P (XEXP (varop, 0))
 	      && XEXP (XEXP (varop, 0), 1) == constm1_rtx
 	      && (STORE_FLAG_VALUE == 1 || STORE_FLAG_VALUE == -1)
 	      && (code == LSHIFTRT || code == ASHIFTRT)
@@ -10947,8 +10923,7 @@  simplify_shift_const_1 (enum rtx_code code, machine_mode result_mode,
 	      && rtx_equal_p (XEXP (XEXP (varop, 0), 0), XEXP (varop, 1)))
 	    {
 	      count = 0;
-	      varop = gen_rtx_LE (int_varop_mode, XEXP (varop, 1),
-				  const0_rtx);
+	      varop = gen_rtx_LE (int_varop_mode, XEXP (varop, 1), const0_rtx);
 
 	      if (STORE_FLAG_VALUE == 1 ? code == ASHIFTRT : code == LSHIFTRT)
 		varop = gen_rtx_NEG (int_varop_mode, varop);
@@ -12402,33 +12377,33 @@  simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1)
 	      && is_a <scalar_int_mode> (GET_MODE (SUBREG_REG (op0)),
 					 &inner_mode)
 	      && GET_MODE_PRECISION (inner_mode) > mode_width
-	      && GET_CODE (SUBREG_REG (op0)) == PLUS
+	      && PLUS_P (SUBREG_REG (op0))
 	      && CONST_INT_P (XEXP (SUBREG_REG (op0), 1)))
 	    {
 	      rtx a = XEXP (SUBREG_REG (op0), 0);
 	      HOST_WIDE_INT c1 = -INTVAL (XEXP (SUBREG_REG (op0), 1));
 
 	      if ((c1 > 0
-		   && (unsigned HOST_WIDE_INT) c1
-		       < HOST_WIDE_INT_1U << (mode_width - 1)
+		   && (unsigned HOST_WIDE_INT) c1 < HOST_WIDE_INT_1U
+						      << (mode_width - 1)
 		   && (equality_comparison_p || unsigned_comparison_p)
 		   /* (A - C1) zero-extends if it is positive and sign-extends
 		      if it is negative, C2 both zero- and sign-extends.  */
-		   && (((nonzero_bits (a, inner_mode)
-			 & ~GET_MODE_MASK (mode)) == 0
+		   && (((nonzero_bits (a, inner_mode) & ~GET_MODE_MASK (mode))
+			  == 0
 			&& const_op >= 0)
 		       /* (A - C1) sign-extends if it is positive and 1-extends
 			  if it is negative, C2 both sign- and 1-extends.  */
 		       || (num_sign_bit_copies (a, inner_mode)
-			   > (unsigned int) (GET_MODE_PRECISION (inner_mode)
-					     - mode_width)
+			     > (unsigned int) (GET_MODE_PRECISION (inner_mode)
+					       - mode_width)
 			   && const_op < 0)))
-		  || ((unsigned HOST_WIDE_INT) c1
-		       < HOST_WIDE_INT_1U << (mode_width - 2)
+		  || ((unsigned HOST_WIDE_INT) c1 < HOST_WIDE_INT_1U
+						      << (mode_width - 2)
 		      /* (A - C1) always sign-extends, like C2.  */
 		      && num_sign_bit_copies (a, inner_mode)
-			 > (unsigned int) (GET_MODE_PRECISION (inner_mode)
-					   - (mode_width - 1))))
+			   > (unsigned int) (GET_MODE_PRECISION (inner_mode)
+					     - (mode_width - 1))))
 		{
 		  op0 = SUBREG_REG (op0);
 		  continue;
@@ -12559,7 +12534,7 @@  simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1)
 	case IOR:
 	  /* The sign bit of (ior (plus X (const_int -1)) X) is nonzero
 	     iff X <= 0.  */
-	  if (sign_bit_comparison_p && GET_CODE (XEXP (op0, 0)) == PLUS
+	  if (sign_bit_comparison_p && PLUS_P (XEXP (op0, 0))
 	      && XEXP (XEXP (op0, 0), 1) == constm1_rtx
 	      && rtx_equal_p (XEXP (XEXP (op0, 0), 0), XEXP (op0, 1)))
 	    {
@@ -12812,14 +12787,12 @@  simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1)
 	  /* Likewise if OP0 is a PLUS of a sign extension with a
 	     constant, which is usually represented with the PLUS
 	     between the shifts.  */
-	  if (! unsigned_comparison_p
-	      && CONST_INT_P (XEXP (op0, 1))
-	      && GET_CODE (XEXP (op0, 0)) == PLUS
-	      && CONST_INT_P (XEXP (XEXP (op0, 0), 1))
+	  if (!unsigned_comparison_p && CONST_INT_P (XEXP (op0, 1))
+	      && PLUS_P (XEXP (op0, 0)) && CONST_INT_P (XEXP (XEXP (op0, 0), 1))
 	      && GET_CODE (XEXP (XEXP (op0, 0), 0)) == ASHIFT
 	      && XEXP (op0, 1) == XEXP (XEXP (XEXP (op0, 0), 0), 1)
 	      && (int_mode_for_size (mode_width - INTVAL (XEXP (op0, 1)), 1)
-		  .exists (&tmode))
+		    .exists (&tmode))
 	      && (((unsigned HOST_WIDE_INT) const_op
 		   + (GET_MODE_MASK (tmode) >> 1) + 1)
 		  <= GET_MODE_MASK (tmode)))
diff --git a/gcc/compare-elim.cc b/gcc/compare-elim.cc
index 4a23202f8ff..9427b81dc9e 100644
--- a/gcc/compare-elim.cc
+++ b/gcc/compare-elim.cc
@@ -831,8 +831,7 @@  try_eliminate_compare (struct comparison *cmp)
 	   (minus:SI (reg:SI) (reg:SI))))
       (set (reg:CC flags)
 	   (compare:CC (reg:SI) (reg:SI)))] */
-  else if (REG_P (in_b)
-	   && GET_CODE (SET_SRC (x)) == MINUS
+  else if (REG_P (in_b) && MINUS_P (SET_SRC (x))
 	   && rtx_equal_p (XEXP (SET_SRC (x), 0), in_a)
 	   && rtx_equal_p (XEXP (SET_SRC (x), 1), in_b))
     cmp_a = in_a;
diff --git a/gcc/cse.cc b/gcc/cse.cc
index b13afd4ba72..cf542cbd72c 100644
--- a/gcc/cse.cc
+++ b/gcc/cse.cc
@@ -1264,8 +1264,7 @@  find_reg_offset_for_const (struct table_elt *anchor_elt, HOST_WIDE_INT offs,
 	return match;
 
       if (REG_P (elt->exp)
-	  || (GET_CODE (elt->exp) == PLUS
-	      && REG_P (XEXP (elt->exp, 0))
+	  || (PLUS_P (elt->exp) && REG_P (XEXP (elt->exp, 0))
 	      && GET_CODE (XEXP (elt->exp, 1)) == CONST_INT))
 	{
 	  rtx x;
@@ -1276,9 +1275,8 @@  find_reg_offset_for_const (struct table_elt *anchor_elt, HOST_WIDE_INT offs,
 
 	  x = plus_constant (GET_MODE (elt->exp), elt->exp, offs);
 	  if (REG_P (x)
-	      || (GET_CODE (x) == PLUS
-		  && IN_RANGE (INTVAL (XEXP (x, 1)),
-			       -targetm.const_anchor,
+	      || (PLUS_P (x)
+		  && IN_RANGE (INTVAL (XEXP (x, 1)), -targetm.const_anchor,
 			       targetm.const_anchor - 1)))
 	    {
 	      match = x;
@@ -3492,40 +3490,48 @@  fold_rtx (rtx x, rtx_insn *insn)
 	     ADDR_DIFF_VEC table.  */
 	  if (const_arg1 && GET_CODE (const_arg1) == LABEL_REF)
 	    {
-	      rtx y
-		= GET_CODE (folded_arg0) == MINUS ? folded_arg0
-		: lookup_as_function (folded_arg0, MINUS);
+	      rtx y = MINUS_P (folded_arg0)
+			? folded_arg0
+			: lookup_as_function (folded_arg0, MINUS);
 
 	      if (y != 0 && GET_CODE (XEXP (y, 1)) == LABEL_REF
-		  && label_ref_label (XEXP (y, 1)) == label_ref_label (const_arg1))
+		  && label_ref_label (XEXP (y, 1))
+		       == label_ref_label (const_arg1))
 		return XEXP (y, 0);
 
 	      /* Now try for a CONST of a MINUS like the above.  */
-	      if ((y = (GET_CODE (folded_arg0) == CONST ? folded_arg0
-			: lookup_as_function (folded_arg0, CONST))) != 0
-		  && GET_CODE (XEXP (y, 0)) == MINUS
+	      if ((y = (GET_CODE (folded_arg0) == CONST
+			  ? folded_arg0
+			  : lookup_as_function (folded_arg0, CONST)))
+		    != 0
+		  && MINUS_P (XEXP (y, 0))
 		  && GET_CODE (XEXP (XEXP (y, 0), 1)) == LABEL_REF
-		  && label_ref_label (XEXP (XEXP (y, 0), 1)) == label_ref_label (const_arg1))
+		  && label_ref_label (XEXP (XEXP (y, 0), 1))
+		       == label_ref_label (const_arg1))
 		return XEXP (XEXP (y, 0), 0);
 	    }
 
 	  /* Likewise if the operands are in the other order.  */
 	  if (const_arg0 && GET_CODE (const_arg0) == LABEL_REF)
 	    {
-	      rtx y
-		= GET_CODE (folded_arg1) == MINUS ? folded_arg1
-		: lookup_as_function (folded_arg1, MINUS);
+	      rtx y = MINUS_P (folded_arg1)
+			? folded_arg1
+			: lookup_as_function (folded_arg1, MINUS);
 
 	      if (y != 0 && GET_CODE (XEXP (y, 1)) == LABEL_REF
-		  && label_ref_label (XEXP (y, 1)) == label_ref_label (const_arg0))
+		  && label_ref_label (XEXP (y, 1))
+		       == label_ref_label (const_arg0))
 		return XEXP (y, 0);
 
 	      /* Now try for a CONST of a MINUS like the above.  */
-	      if ((y = (GET_CODE (folded_arg1) == CONST ? folded_arg1
-			: lookup_as_function (folded_arg1, CONST))) != 0
-		  && GET_CODE (XEXP (y, 0)) == MINUS
+	      if ((y = (GET_CODE (folded_arg1) == CONST
+			  ? folded_arg1
+			  : lookup_as_function (folded_arg1, CONST)))
+		    != 0
+		  && MINUS_P (XEXP (y, 0))
 		  && GET_CODE (XEXP (XEXP (y, 0), 1)) == LABEL_REF
-		  && label_ref_label (XEXP (XEXP (y, 0), 1)) == label_ref_label (const_arg0))
+		  && label_ref_label (XEXP (XEXP (y, 0), 1))
+		       == label_ref_label (const_arg0))
 		return XEXP (XEXP (y, 0), 0);
 	    }
 
@@ -4817,7 +4823,7 @@  cse_insn (rtx_insn *insn)
 	      /* Consider (minus (label_ref L1) (label_ref L2)) as
 		 "constant" here so we will record it. This allows us
 		 to fold switch statements when an ADDR_DIFF_VEC is used.  */
-	      || (GET_CODE (src_folded) == MINUS
+	      || (MINUS_P (src_folded)
 		  && GET_CODE (XEXP (src_folded, 0)) == LABEL_REF
 		  && GET_CODE (XEXP (src_folded, 1)) == LABEL_REF)))
 	src_const = src_folded, src_const_elt = elt;
@@ -5364,9 +5370,10 @@  cse_insn (rtx_insn *insn)
 		   && (GET_CODE (XEXP (trial, 0)) == TRUNCATE
 		       /* Likewise on IA-64, except without the
 			  truncate.  */
-		       || (GET_CODE (XEXP (trial, 0)) == MINUS
+		       || (MINUS_P (XEXP (trial, 0))
 			   && GET_CODE (XEXP (XEXP (trial, 0), 0)) == LABEL_REF
-			   && GET_CODE (XEXP (XEXP (trial, 0), 1)) == LABEL_REF)))
+			   && GET_CODE (XEXP (XEXP (trial, 0), 1))
+				== LABEL_REF)))
 	    /* Do nothing for this case.  */
 	    ;
 
@@ -5489,14 +5496,9 @@  cse_insn (rtx_insn *insn)
 	 Avoid a REG_EQUAL note for (CONST (MINUS (LABEL_REF) (LABEL_REF)))
 	 which can be created for a reference to a compile time computable
 	 entry in a jump table.  */
-      if (n_sets == 1
-	  && REG_P (dest)
-	  && src_const
-	  && !REG_P (src_const)
-	  && !(GET_CODE (src_const) == SUBREG
-	       && REG_P (SUBREG_REG (src_const)))
-	  && !(GET_CODE (src_const) == CONST
-	       && GET_CODE (XEXP (src_const, 0)) == MINUS
+      if (n_sets == 1 && REG_P (dest) && src_const && !REG_P (src_const)
+	  && !(GET_CODE (src_const) == SUBREG && REG_P (SUBREG_REG (src_const)))
+	  && !(GET_CODE (src_const) == CONST && MINUS_P (XEXP (src_const, 0))
 	       && GET_CODE (XEXP (XEXP (src_const, 0), 0)) == LABEL_REF
 	       && GET_CODE (XEXP (XEXP (src_const, 0), 1)) == LABEL_REF)
 	  && !rtx_equal_p (src, src_const))
diff --git a/gcc/cselib.cc b/gcc/cselib.cc
index 2abc763a3f8..9d7ea8ae320 100644
--- a/gcc/cselib.cc
+++ b/gcc/cselib.cc
@@ -481,8 +481,7 @@  invariant_or_equiv_p (cselib_val *v)
 	return true;
 
       /* (plus (value V) (const_int C)) is invariant iff V is invariant.  */
-      if (GET_CODE (v->locs->loc) == PLUS
-	  && CONST_INT_P (XEXP (v->locs->loc, 1))
+      if (PLUS_P (v->locs->loc) && CONST_INT_P (XEXP (v->locs->loc, 1))
 	  && GET_CODE (XEXP (v->locs->loc, 0)) == VALUE
 	  && invariant_or_equiv_p (CSELIB_VAL_PTR (XEXP (v->locs->loc, 0))))
 	return true;
@@ -547,10 +546,9 @@  cselib_reset_table (unsigned int num)
 
       /* If cfa_base is sp + const_int, need to preserve also the
 	 SP_DERIVED_VALUE_P value.  */
-      for (struct elt_loc_list *l = cfa_base_preserved_val->locs;
-	   l; l = l->next)
-	if (GET_CODE (l->loc) == PLUS
-	    && GET_CODE (XEXP (l->loc, 0)) == VALUE
+      for (struct elt_loc_list *l = cfa_base_preserved_val->locs; l;
+	   l = l->next)
+	if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
 	    && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
 	    && CONST_INT_P (XEXP (l->loc, 1)))
 	  {
@@ -893,8 +891,7 @@  autoinc_split (rtx x, rtx *off, machine_mode memmode)
 	      return e->val_rtx;
 	    }
 	  for (struct elt_loc_list *l = e->locs; l; l = l->next)
-	    if (GET_CODE (l->loc) == PLUS
-		&& GET_CODE (XEXP (l->loc, 0)) == VALUE
+	    if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
 		&& SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
 		&& CONST_INT_P (XEXP (l->loc, 1)))
 	      {
@@ -1015,9 +1012,7 @@  rtx_equal_for_cselib_1 (rtx x, rtx y, machine_mode memmode, int depth)
     return 0;
 
   if (GET_CODE (x) != GET_CODE (y)
-      || (GET_CODE (x) == PLUS
-	  && GET_MODE (x) == Pmode
-	  && CONST_INT_P (XEXP (x, 1))
+      || (PLUS_P (x) && GET_MODE (x) == Pmode && CONST_INT_P (XEXP (x, 1))
 	  && CONST_INT_P (XEXP (y, 1))))
     {
       rtx xorig = x, yorig = y;
@@ -1238,10 +1233,9 @@  cselib_hash_plus_const_int (rtx x, HOST_WIDE_INT c, int create,
   if (! e)
     return 0;
 
-  if (! SP_DERIVED_VALUE_P (e->val_rtx))
+  if (!SP_DERIVED_VALUE_P (e->val_rtx))
     for (struct elt_loc_list *l = e->locs; l; l = l->next)
-      if (GET_CODE (l->loc) == PLUS
-	  && GET_CODE (XEXP (l->loc, 0)) == VALUE
+      if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
 	  && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
 	  && CONST_INT_P (XEXP (l->loc, 1)))
 	{
@@ -2195,10 +2189,9 @@  cselib_subst_to_values (rtx x, machine_mode memmode)
 	    {
 	      if (SP_DERIVED_VALUE_P (t) && XEXP (x, 1) == const0_rtx)
 		return t;
-	      for (struct elt_loc_list *l = CSELIB_VAL_PTR (t)->locs;
-		   l; l = l->next)
-		if (GET_CODE (l->loc) == PLUS
-		    && GET_CODE (XEXP (l->loc, 0)) == VALUE
+	      for (struct elt_loc_list *l = CSELIB_VAL_PTR (t)->locs; l;
+		   l = l->next)
+		if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
 		    && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
 		    && CONST_INT_P (XEXP (l->loc, 1)))
 		  return plus_constant (Pmode, l->loc, INTVAL (XEXP (x, 1)));
@@ -2774,8 +2767,7 @@  cselib_record_sp_cfa_base_equiv (HOST_WIDE_INT offset, rtx_insn *insn)
 	sp_derived_value = l->loc;
 	break;
       }
-    else if (GET_CODE (l->loc) == PLUS
-	     && GET_CODE (XEXP (l->loc, 0)) == VALUE
+    else if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
 	     && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
 	     && CONST_INT_P (XEXP (l->loc, 1)))
       {
@@ -2803,8 +2795,7 @@  cselib_sp_derived_value_p (cselib_val *v)
 {
   if (!SP_DERIVED_VALUE_P (v->val_rtx))
     for (struct elt_loc_list *l = v->locs; l; l = l->next)
-      if (GET_CODE (l->loc) == PLUS
-	  && GET_CODE (XEXP (l->loc, 0)) == VALUE
+      if (PLUS_P (l->loc) && GET_CODE (XEXP (l->loc, 0)) == VALUE
 	  && SP_DERIVED_VALUE_P (XEXP (l->loc, 0))
 	  && CONST_INT_P (XEXP (l->loc, 1)))
 	v = CSELIB_VAL_PTR (XEXP (l->loc, 0));
@@ -2813,7 +2804,7 @@  cselib_sp_derived_value_p (cselib_val *v)
   for (struct elt_loc_list *l = v->locs; l; l = l->next)
     if (l->loc == cfa_base_preserved_val->val_rtx)
       return true;
-    else if (GET_CODE (l->loc) == PLUS
+    else if (PLUS_P (l->loc)
 	     && XEXP (l->loc, 0) == cfa_base_preserved_val->val_rtx
 	     && CONST_INT_P (XEXP (l->loc, 1)))
       return true;
diff --git a/gcc/dce.cc b/gcc/dce.cc
index 64aa0aa471d..6157f2630f6 100644
--- a/gcc/dce.cc
+++ b/gcc/dce.cc
@@ -300,9 +300,7 @@  sp_based_mem_offset (rtx_call_insn *call_insn, const_rtx mem, bool fast)
 {
   HOST_WIDE_INT off = 0;
   rtx addr = XEXP (mem, 0);
-  if (GET_CODE (addr) == PLUS
-      && REG_P (XEXP (addr, 0))
-      && CONST_INT_P (XEXP (addr, 1)))
+  if (PLUS_P (addr) && REG_P (XEXP (addr, 0)) && CONST_INT_P (XEXP (addr, 1)))
     {
       off = INTVAL (XEXP (addr, 1));
       addr = XEXP (addr, 0);
diff --git a/gcc/dwarf2cfi.cc b/gcc/dwarf2cfi.cc
index bef3165e691..457a6487d64 100644
--- a/gcc/dwarf2cfi.cc
+++ b/gcc/dwarf2cfi.cc
@@ -2094,7 +2094,7 @@  dwarf2out_frame_debug_expr (rtx expr)
 
 	    gcc_assert (REG_P (XEXP (XEXP (dest, 0), 0)));
 	    offset = rtx_to_poly_int64 (XEXP (XEXP (dest, 0), 1));
-	    if (GET_CODE (XEXP (dest, 0)) == MINUS)
+	    if (MINUS_P (XEXP (dest, 0)))
 	      offset = -offset;
 
 	    regno = dwf_cfa_reg (XEXP (XEXP (dest, 0), 0));
diff --git a/gcc/dwarf2out.cc b/gcc/dwarf2out.cc
index e81044b8c48..92ca8e3b081 100644
--- a/gcc/dwarf2out.cc
+++ b/gcc/dwarf2out.cc
@@ -14906,10 +14906,10 @@  based_loc_descr (rtx reg, poly_int64 offset,
 static inline int
 is_based_loc (const_rtx rtl)
 {
-  return (GET_CODE (rtl) == PLUS
-	  && ((REG_P (XEXP (rtl, 0))
-	       && REGNO (XEXP (rtl, 0)) < FIRST_PSEUDO_REGISTER
-	       && CONST_INT_P (XEXP (rtl, 1)))));
+  return (
+    PLUS_P (rtl)
+    && ((REG_P (XEXP (rtl, 0)) && REGNO (XEXP (rtl, 0)) < FIRST_PSEUDO_REGISTER
+	 && CONST_INT_P (XEXP (rtl, 1)))));
 }
 
 /* Try to handle TLS MEMs, for which mem_loc_descriptor on XEXP (mem, 0)
@@ -30686,8 +30686,7 @@  optimize_one_addr_into_implicit_ptr (dw_loc_descr_ref loc)
   dw_die_ref ref = NULL;
   tree decl;
 
-  if (GET_CODE (rtl) == CONST
-      && GET_CODE (XEXP (rtl, 0)) == PLUS
+  if (GET_CODE (rtl) == CONST && PLUS_P (XEXP (rtl, 0))
       && CONST_INT_P (XEXP (XEXP (rtl, 0), 1)))
     {
       offset = INTVAL (XEXP (XEXP (rtl, 0), 1));
diff --git a/gcc/emit-rtl.cc b/gcc/emit-rtl.cc
index f25fb70ab97..54e793bc949 100644
--- a/gcc/emit-rtl.cc
+++ b/gcc/emit-rtl.cc
@@ -2514,10 +2514,8 @@  offset_address (rtx memref, rtx offset, unsigned HOST_WIDE_INT pow2)
      being able to recognize the magic around pic_offset_table_rtx.
      This stuff is fragile, and is yet another example of why it is
      bad to expose PIC machinery too early.  */
-  if (! memory_address_addr_space_p (GET_MODE (memref), new_rtx,
-				     attrs.addrspace)
-      && GET_CODE (addr) == PLUS
-      && XEXP (addr, 0) == pic_offset_table_rtx)
+  if (!memory_address_addr_space_p (GET_MODE (memref), new_rtx, attrs.addrspace)
+      && PLUS_P (addr) && XEXP (addr, 0) == pic_offset_table_rtx)
     {
       addr = force_reg (GET_MODE (addr), addr);
       new_rtx = simplify_gen_binary (PLUS, address_mode, addr, offset);
diff --git a/gcc/explow.cc b/gcc/explow.cc
index 568e0eb1a15..73435df1531 100644
--- a/gcc/explow.cc
+++ b/gcc/explow.cc
@@ -268,11 +268,9 @@  static rtx
 break_out_memory_refs (rtx x)
 {
   if (MEM_P (x)
-      || (CONSTANT_P (x) && CONSTANT_ADDRESS_P (x)
-	  && GET_MODE (x) != VOIDmode))
+      || (CONSTANT_P (x) && CONSTANT_ADDRESS_P (x) && GET_MODE (x) != VOIDmode))
     x = force_reg (GET_MODE (x), x);
-  else if (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS
-	   || GET_CODE (x) == MULT)
+  else if (PLUS_P (x) || MINUS_P (x) || MULT_P (x))
     {
       rtx op0 = break_out_memory_refs (XEXP (x, 0));
       rtx op1 = break_out_memory_refs (XEXP (x, 1));
@@ -363,13 +361,12 @@  convert_memory_address_addr_space_1 (scalar_int_mode to_mode ATTRIBUTE_UNUSED,
 	 narrower. Inside a CONST RTL, this is safe for both pointers
 	 zero or sign extended as pointers cannot wrap. */
       if (GET_MODE_SIZE (to_mode) < GET_MODE_SIZE (from_mode)
-	  || (GET_CODE (x) == PLUS
-	      && CONST_INT_P (XEXP (x, 1))
+	  || (PLUS_P (x) && CONST_INT_P (XEXP (x, 1))
 	      && ((in_const && POINTERS_EXTEND_UNSIGNED != 0)
-		  || XEXP (x, 1) == convert_memory_address_addr_space_1
-				     (to_mode, XEXP (x, 1), as, in_const,
-				      no_emit)
-                  || POINTERS_EXTEND_UNSIGNED < 0)))
+		  || XEXP (x, 1)
+		       == convert_memory_address_addr_space_1 (
+			 to_mode, XEXP (x, 1), as, in_const, no_emit)
+		  || POINTERS_EXTEND_UNSIGNED < 0)))
 	{
 	  temp = convert_memory_address_addr_space_1 (to_mode, XEXP (x, 0),
 						      as, in_const, no_emit);
@@ -483,7 +480,7 @@  memory_address_addr_space (machine_mode mode, rtx x, addr_space_t as)
 	 and index off of it.  We do this because it often makes
 	 shorter code, and because the addresses thus generated
 	 in registers often become common subexpressions.  */
-      if (GET_CODE (x) == PLUS)
+      if (PLUS_P (x))
 	{
 	  rtx constant_term = const0_rtx;
 	  rtx y = eliminate_constant_term (x, &constant_term);
@@ -500,7 +497,7 @@  memory_address_addr_space (machine_mode mode, rtx x, addr_space_t as)
 	    }
 	}
 
-      else if (GET_CODE (x) == MULT || GET_CODE (x) == MINUS)
+      else if (MINUS_P (x) || MULT_P (x))
 	x = force_operand (x, NULL_RTX);
 
       /* If we have a register that's an invalid address,
@@ -523,9 +520,7 @@  memory_address_addr_space (machine_mode mode, rtx x, addr_space_t as)
     return x;
   else if (REG_P (x))
     mark_reg_pointer (x, BITS_PER_UNIT);
-  else if (GET_CODE (x) == PLUS
-	   && REG_P (XEXP (x, 0))
-	   && CONST_INT_P (XEXP (x, 1)))
+  else if (PLUS_P (x) && REG_P (XEXP (x, 0)) && CONST_INT_P (XEXP (x, 1)))
     mark_reg_pointer (XEXP (x, 0), BITS_PER_UNIT);
 
   /* OLDX may have been the address on a temporary.  Update the address
@@ -572,8 +567,7 @@  use_anchored_address (rtx x)
   /* Split the address into a base and offset.  */
   base = XEXP (x, 0);
   offset = 0;
-  if (GET_CODE (base) == CONST
-      && GET_CODE (XEXP (base, 0)) == PLUS
+  if (GET_CODE (base) == CONST && PLUS_P (XEXP (base, 0))
       && CONST_INT_P (XEXP (XEXP (base, 0), 1)))
     {
       offset += INTVAL (XEXP (XEXP (base, 0), 1));
@@ -711,8 +705,7 @@  force_reg (machine_mode mode, rtx x)
       }
     else if (GET_CODE (x) == LABEL_REF)
       align = BITS_PER_UNIT;
-    else if (GET_CODE (x) == CONST
-	     && GET_CODE (XEXP (x, 0)) == PLUS
+    else if (GET_CODE (x) == CONST && PLUS_P (XEXP (x, 0))
 	     && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF
 	     && CONST_INT_P (XEXP (XEXP (x, 0), 1)))
       {
diff --git a/gcc/expr.cc b/gcc/expr.cc
index d9407432ea5..de6481c1fbe 100644
--- a/gcc/expr.cc
+++ b/gcc/expr.cc
@@ -3865,9 +3865,9 @@  emit_move_resolve_push (machine_mode mode, rtx x)
     {
       rtx expr = XEXP (XEXP (x, 0), 1);
 
-      gcc_assert (GET_CODE (expr) == PLUS || GET_CODE (expr) == MINUS);
+      gcc_assert (PLUS_P (expr) || MINUS_P (expr));
       poly_int64 val = rtx_to_poly_int64 (XEXP (expr, 1));
-      if (GET_CODE (expr) == MINUS)
+      if (MINUS_P (expr))
 	val = -val;
       gcc_assert (known_eq (adjust, val) || known_eq (adjust, -val));
       adjust = val;
@@ -4653,7 +4653,7 @@  find_args_size_adjust (rtx_insn *insn)
 	case PRE_MODIFY:
 	case POST_MODIFY:
 	  addr = XEXP (addr, 1);
-	  gcc_assert (GET_CODE (addr) == PLUS);
+	  gcc_assert (PLUS_P (addr));
 	  gcc_assert (XEXP (addr, 0) == stack_pointer_rtx);
 	  return rtx_to_poly_int64 (XEXP (addr, 1));
 	default:
@@ -8170,13 +8170,12 @@  force_operand (rtx value, rtx target)
 	}
 
       /* Check for an addition with OP2 a constant integer and our first
-         operand a PLUS of a virtual register and something else.  In that
-         case, we want to emit the sum of the virtual register and the
-         constant first and then add the other value.  This allows virtual
-         register instantiation to simply modify the constant rather than
-         creating another one around this addition.  */
-      if (code == PLUS && CONST_INT_P (op2)
-	  && GET_CODE (XEXP (value, 0)) == PLUS
+	 operand a PLUS of a virtual register and something else.  In that
+	 case, we want to emit the sum of the virtual register and the
+	 constant first and then add the other value.  This allows virtual
+	 register instantiation to simply modify the constant rather than
+	 creating another one around this addition.  */
+      if (code == PLUS && CONST_INT_P (op2) && PLUS_P (XEXP (value, 0))
 	  && REG_P (XEXP (XEXP (value, 0), 0))
 	  && REGNO (XEXP (XEXP (value, 0), 0)) >= FIRST_VIRTUAL_REGISTER
 	  && REGNO (XEXP (XEXP (value, 0), 0)) <= LAST_VIRTUAL_REGISTER)
@@ -8295,12 +8294,12 @@  safe_from_p (const_rtx x, tree exp, int top_p)
 	  && (TREE_CODE (TREE_TYPE (exp)) != ARRAY_TYPE
 	      || TYPE_ARRAY_MAX_SIZE (TREE_TYPE (exp)) == NULL_TREE
 	      || TREE_CODE (TYPE_ARRAY_MAX_SIZE (TREE_TYPE (exp)))
-	      != INTEGER_CST)
+		   != INTEGER_CST)
 	  && GET_MODE (x) == BLKmode)
       /* If X is in the outgoing argument area, it is always safe.  */
       || (MEM_P (x)
 	  && (XEXP (x, 0) == virtual_outgoing_args_rtx
-	      || (GET_CODE (XEXP (x, 0)) == PLUS
+	      || (PLUS_P (XEXP (x, 0))
 		  && XEXP (XEXP (x, 0), 0) == virtual_outgoing_args_rtx))))
     return 1;
 
diff --git a/gcc/final.cc b/gcc/final.cc
index eea572238f6..f6d4a62f10f 100644
--- a/gcc/final.cc
+++ b/gcc/final.cc
@@ -3061,13 +3061,14 @@  cleanup_subreg_operands (rtx_insn *insn)
 	 expression directly.  */
       if (GET_CODE (*recog_data.operand_loc[i]) == SUBREG)
 	{
-	  recog_data.operand[i] = alter_subreg (recog_data.operand_loc[i], true);
+	  recog_data.operand[i]
+	    = alter_subreg (recog_data.operand_loc[i], true);
 	  changed = true;
 	}
-      else if (GET_CODE (recog_data.operand[i]) == PLUS
-	       || GET_CODE (recog_data.operand[i]) == MULT
+      else if (PLUS_P (recog_data.operand[i]) || MULT_P (recog_data.operand[i])
 	       || MEM_P (recog_data.operand[i]))
-	recog_data.operand[i] = walk_alter_subreg (recog_data.operand_loc[i], &changed);
+	recog_data.operand[i]
+	  = walk_alter_subreg (recog_data.operand_loc[i], &changed);
     }
 
   for (i = 0; i < recog_data.n_dups; i++)
@@ -3077,10 +3078,11 @@  cleanup_subreg_operands (rtx_insn *insn)
 	  *recog_data.dup_loc[i] = alter_subreg (recog_data.dup_loc[i], true);
 	  changed = true;
 	}
-      else if (GET_CODE (*recog_data.dup_loc[i]) == PLUS
-	       || GET_CODE (*recog_data.dup_loc[i]) == MULT
+      else if (PLUS_P (*recog_data.dup_loc[i])
+	       || MULT_P (*recog_data.dup_loc[i])
 	       || MEM_P (*recog_data.dup_loc[i]))
-	*recog_data.dup_loc[i] = walk_alter_subreg (recog_data.dup_loc[i], &changed);
+	*recog_data.dup_loc[i]
+	  = walk_alter_subreg (recog_data.dup_loc[i], &changed);
     }
   if (changed)
     df_insn_rescan (insn);
@@ -3252,9 +3254,9 @@  get_mem_expr_from_op (rtx op, int *paddressp)
   /* First check if we have a decl for the address, then look at the right side
      if it is a PLUS.  Otherwise, strip off arithmetic and keep looking.
      But don't allow the address to itself be indirect.  */
-  if ((expr = get_mem_expr_from_op (op, &inner_addressp)) && ! inner_addressp)
+  if ((expr = get_mem_expr_from_op (op, &inner_addressp)) && !inner_addressp)
     return expr;
-  else if (GET_CODE (op) == PLUS
+  else if (PLUS_P (op)
 	   && (expr = get_mem_expr_from_op (XEXP (op, 1), &inner_addressp)))
     return expr;
 
diff --git a/gcc/function.cc b/gcc/function.cc
index 9c8773bbc59..8ab2f0e7f62 100644
--- a/gcc/function.cc
+++ b/gcc/function.cc
@@ -757,10 +757,10 @@  find_temp_slot_from_address (rtx x)
 
   /* If we have a sum involving a register, see if it points to a temp
      slot.  */
-  if (GET_CODE (x) == PLUS && REG_P (XEXP (x, 0))
+  if (PLUS_P (x) && REG_P (XEXP (x, 0))
       && (p = find_temp_slot_from_address (XEXP (x, 0))) != 0)
     return p;
-  else if (GET_CODE (x) == PLUS && REG_P (XEXP (x, 1))
+  else if (PLUS_P (x) && REG_P (XEXP (x, 1))
 	   && (p = find_temp_slot_from_address (XEXP (x, 1))) != 0)
     return p;
 
@@ -1614,8 +1614,7 @@  instantiate_virtual_regs_in_insn (rtx_insn *insn)
       /* Handle a plus involving a virtual register by determining if the
 	 operands remain valid if they're modified in place.  */
       poly_int64 delta;
-      if (GET_CODE (SET_SRC (set)) == PLUS
-	  && recog_data.n_operands >= 3
+      if (PLUS_P (SET_SRC (set)) && recog_data.n_operands >= 3
 	  && recog_data.operand_loc[1] == &XEXP (SET_SRC (set), 0)
 	  && recog_data.operand_loc[2] == &XEXP (SET_SRC (set), 1)
 	  && poly_int_rtx_p (recog_data.operand[2], &delta)
diff --git a/gcc/fwprop.cc b/gcc/fwprop.cc
index fc652ab9a1f..a905aff5f85 100644
--- a/gcc/fwprop.cc
+++ b/gcc/fwprop.cc
@@ -120,7 +120,7 @@  can_simplify_addr (rtx addr)
   if (CONSTANT_ADDRESS_P (addr))
     return false;
 
-  if (GET_CODE (addr) == PLUS)
+  if (PLUS_P (addr))
     reg = XEXP (addr, 0);
   else
     reg = addr;
diff --git a/gcc/haifa-sched.cc b/gcc/haifa-sched.cc
index 4efaa94458d..0569a40fdf1 100644
--- a/gcc/haifa-sched.cc
+++ b/gcc/haifa-sched.cc
@@ -378,12 +378,10 @@  static vec<rtx_insn *> scheduled_insns;
 static int may_trap_exp (const_rtx, int);
 
 /* Nonzero iff the address is comprised from at most 1 register.  */
-#define CONST_BASED_ADDRESS_P(x)			\
-  (REG_P (x)					\
-   || ((GET_CODE (x) == PLUS || GET_CODE (x) == MINUS	\
-	|| (GET_CODE (x) == LO_SUM))			\
-       && (CONSTANT_P (XEXP (x, 0))			\
-	   || CONSTANT_P (XEXP (x, 1)))))
+#define CONST_BASED_ADDRESS_P(x)                                               \
+  (REG_P (x)                                                                   \
+   || ((PLUS_P (x) || MINUS_P (x) || (GET_CODE (x) == LO_SUM))                 \
+       && (CONSTANT_P (XEXP (x, 0)) || CONSTANT_P (XEXP (x, 1)))))
 
 /* Returns a class that insn with GET_DEST(insn)=x may belong to,
    as found by analyzing insn's expression.  */
diff --git a/gcc/ifcvt.cc b/gcc/ifcvt.cc
index eb8efb89a89..d63434c2453 100644
--- a/gcc/ifcvt.cc
+++ b/gcc/ifcvt.cc
@@ -1360,16 +1360,14 @@  noce_try_store_flag_constants (struct noce_if_info *if_info)
   rtx b = if_info->b;
 
   /* Handle cases like x := test ? y + 3 : y + 4.  */
-  if (GET_CODE (a) == PLUS
-      && GET_CODE (b) == PLUS
-      && CONST_INT_P (XEXP (a, 1))
+  if (PLUS_P (a) && PLUS_P (b) && CONST_INT_P (XEXP (a, 1))
       && CONST_INT_P (XEXP (b, 1))
       && rtx_equal_p (XEXP (a, 0), XEXP (b, 0))
       /* Allow expressions that are not using the result or plain
-         registers where we handle overlap below.  */
+	 registers where we handle overlap below.  */
       && (REG_P (XEXP (a, 0))
 	  || (noce_operand_ok (XEXP (a, 0))
-	      && ! reg_overlap_mentioned_p (if_info->x, XEXP (a, 0)))))
+	      && !reg_overlap_mentioned_p (if_info->x, XEXP (a, 0)))))
     {
       common = XEXP (a, 0);
       a = XEXP (a, 1);
@@ -1572,8 +1570,7 @@  noce_try_addcc (struct noce_if_info *if_info)
   if (!noce_simple_bbs (if_info))
     return FALSE;
 
-  if (GET_CODE (if_info->a) == PLUS
-      && rtx_equal_p (XEXP (if_info->a, 0), if_info->b)
+  if (PLUS_P (if_info->a) && rtx_equal_p (XEXP (if_info->a, 0), if_info->b)
       && noce_reversed_cond_code (if_info) != UNKNOWN)
     {
       rtx cond = if_info->rev_cond;
diff --git a/gcc/ira.cc b/gcc/ira.cc
index d28a67b2546..e16867d4d17 100644
--- a/gcc/ira.cc
+++ b/gcc/ira.cc
@@ -4163,10 +4163,10 @@  setup_reg_equiv (void)
 		else if (function_invariant_p (x))
 		  {
 		    machine_mode mode;
-		    
+
 		    mode = GET_MODE (SET_DEST (set));
-		    if (GET_CODE (x) == PLUS
-			|| x == frame_pointer_rtx || x == arg_pointer_rtx)
+		    if (PLUS_P (x) || x == frame_pointer_rtx
+			|| x == arg_pointer_rtx)
 		      /* This is PLUS of frame pointer and a constant,
 			 or fp, or argp.  */
 		      ira_reg_equiv[i].invariant = x;
diff --git a/gcc/loop-doloop.cc b/gcc/loop-doloop.cc
index 30b45c8071a..136776b430f 100644
--- a/gcc/loop-doloop.cc
+++ b/gcc/loop-doloop.cc
@@ -204,52 +204,50 @@  doloop_condition_get (rtx_insn *doloop_pat)
     return 0;
 
   if ((XEXP (condition, 0) == reg)
-      /* For the third case:  */  
-      || ((cc_reg != NULL_RTX)
-	  && (XEXP (condition, 0) == cc_reg)
+      /* For the third case:  */
+      || ((cc_reg != NULL_RTX) && (XEXP (condition, 0) == cc_reg)
 	  && (reg_orig == reg))
-      || (GET_CODE (XEXP (condition, 0)) == PLUS
-	  && XEXP (XEXP (condition, 0), 0) == reg))
-   {
-     if (GET_CODE (pattern) != PARALLEL)
-     /*  For the second form we expect:
+      || (PLUS_P (XEXP (condition, 0)) && XEXP (XEXP (condition, 0), 0) == reg))
+    {
+      if (GET_CODE (pattern) != PARALLEL)
+	/*  For the second form we expect:
 
-         (set (reg) (plus (reg) (const_int -1))
-         (set (pc) (if_then_else (reg != 0)
-                                 (label_ref (label))
-                                 (pc))).
+	    (set (reg) (plus (reg) (const_int -1))
+	    (set (pc) (if_then_else (reg != 0)
+				    (label_ref (label))
+				    (pc))).
 
-         is equivalent to the following:
+	    is equivalent to the following:
 
-         (parallel [(set (pc) (if_then_else (reg != 1)
-                                            (label_ref (label))
-                                            (pc)))
-                     (set (reg) (plus (reg) (const_int -1)))
-                     (additional clobbers and uses)])
+	    (parallel [(set (pc) (if_then_else (reg != 1)
+					       (label_ref (label))
+					       (pc)))
+			(set (reg) (plus (reg) (const_int -1)))
+			(additional clobbers and uses)])
 
-        For the third form we expect:
+	   For the third form we expect:
 
-        (parallel [(set (cc) (compare ((plus (reg) (const_int -1)), 0))
-                   (set (reg) (plus (reg) (const_int -1)))])
-        (set (pc) (if_then_else (cc == NE)
-                                (label_ref (label))
-                                (pc))) 
+	   (parallel [(set (cc) (compare ((plus (reg) (const_int -1)), 0))
+		      (set (reg) (plus (reg) (const_int -1)))])
+	   (set (pc) (if_then_else (cc == NE)
+				   (label_ref (label))
+				   (pc)))
 
-        which is equivalent to the following:
+	   which is equivalent to the following:
 
-        (parallel [(set (cc) (compare (reg,  1))
-                   (set (reg) (plus (reg) (const_int -1)))
-                   (set (pc) (if_then_else (NE == cc)
-                                           (label_ref (label))
-                                           (pc))))])
+	   (parallel [(set (cc) (compare (reg,  1))
+		      (set (reg) (plus (reg) (const_int -1)))
+		      (set (pc) (if_then_else (NE == cc)
+					      (label_ref (label))
+					      (pc))))])
 
-        So we return the second form instead for the two cases.
+	   So we return the second form instead for the two cases.
 
-     */
+	*/
         condition = gen_rtx_fmt_ee (NE, VOIDmode, inc_src, const1_rtx);
 
     return condition;
-   }
+    }
 
   /* ??? If a machine uses a funny comparison, we could return a
      canonicalized form here.  */
@@ -417,7 +415,7 @@  doloop_simplify_count (class loop *loop, scalar_int_mode mode, rtx count)
   if (GET_CODE (count) == ZERO_EXTEND)
     {
       rtx extop0 = XEXP (count, 0);
-      if (GET_CODE (extop0) == PLUS)
+      if (PLUS_P (extop0))
 	{
 	  rtx addop0 = XEXP (extop0, 0);
 	  rtx addop1 = XEXP (extop0, 1);
@@ -471,10 +469,10 @@  doloop_modify (class loop *loop, class niter_desc *desc,
   delete_insn (jump_insn);
 
   counter_reg = XEXP (condition, 0);
-  if (GET_CODE (counter_reg) == PLUS)
+  if (PLUS_P (counter_reg))
     counter_reg = XEXP (counter_reg, 0);
   /* These patterns must operate on integer counters.  */
-  mode = as_a <scalar_int_mode> (GET_MODE (counter_reg));
+  mode = as_a<scalar_int_mode> (GET_MODE (counter_reg));
 
   increment_count = false;
   switch (GET_CODE (condition))
diff --git a/gcc/loop-iv.cc b/gcc/loop-iv.cc
index d639336445a..da685f15afc 100644
--- a/gcc/loop-iv.cc
+++ b/gcc/loop-iv.cc
@@ -1543,35 +1543,26 @@  implies_p (rtx a, rtx b)
     }
 
   /* A != N is equivalent to A - (N + 1) <u -1.  */
-  if (GET_CODE (a) == NE
-      && CONST_INT_P (op1)
-      && GET_CODE (b) == LTU
-      && opb1 == constm1_rtx
-      && GET_CODE (opb0) == PLUS
+  if (GET_CODE (a) == NE && CONST_INT_P (op1) && GET_CODE (b) == LTU
+      && opb1 == constm1_rtx && PLUS_P (opb0)
       && CONST_INT_P (XEXP (opb0, 1))
       /* Avoid overflows.  */
       && ((unsigned HOST_WIDE_INT) INTVAL (XEXP (opb0, 1))
-	  != ((unsigned HOST_WIDE_INT)1
-	      << (HOST_BITS_PER_WIDE_INT - 1)) - 1)
+	  != ((unsigned HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT - 1)) - 1)
       && INTVAL (XEXP (opb0, 1)) + 1 == -INTVAL (op1))
     return rtx_equal_p (op0, XEXP (opb0, 0));
 
   /* Likewise, A != N implies A - N > 0.  */
-  if (GET_CODE (a) == NE
-      && CONST_INT_P (op1))
+  if (GET_CODE (a) == NE && CONST_INT_P (op1))
     {
-      if (GET_CODE (b) == GTU
-	  && GET_CODE (opb0) == PLUS
-	  && opb1 == const0_rtx
+      if (GET_CODE (b) == GTU && PLUS_P (opb0) && opb1 == const0_rtx
 	  && CONST_INT_P (XEXP (opb0, 1))
 	  /* Avoid overflows.  */
 	  && ((unsigned HOST_WIDE_INT) INTVAL (XEXP (opb0, 1))
 	      != (HOST_WIDE_INT_1U << (HOST_BITS_PER_WIDE_INT - 1)))
 	  && rtx_equal_p (XEXP (opb0, 0), op0))
 	return INTVAL (op1) == -INTVAL (XEXP (opb0, 1));
-      if (GET_CODE (b) == GEU
-	  && GET_CODE (opb0) == PLUS
-	  && opb1 == const1_rtx
+      if (GET_CODE (b) == GEU && PLUS_P (opb0) && opb1 == const1_rtx
 	  && CONST_INT_P (XEXP (opb0, 1))
 	  /* Avoid overflows.  */
 	  && ((unsigned HOST_WIDE_INT) INTVAL (XEXP (opb0, 1))
diff --git a/gcc/lra-constraints.cc b/gcc/lra-constraints.cc
index d92ab76908c..c20407fceda 100644
--- a/gcc/lra-constraints.cc
+++ b/gcc/lra-constraints.cc
@@ -608,7 +608,7 @@  canonicalize_reload_addr (rtx addr)
   FOR_EACH_SUBRTX_VAR (iter, array, addr, NONCONST)
     {
       rtx x = *iter;
-      if (GET_CODE (x) == MULT && CONST_INT_P (XEXP (x, 1)))
+      if (MULT_P (x) && CONST_INT_P (XEXP (x, 1)))
 	{
 	  const HOST_WIDE_INT ci = INTVAL (XEXP (x, 1));
 	  const int pwr2 = exact_log2 (ci);
@@ -1763,19 +1763,19 @@  simplify_operand_subreg (int nop, machine_mode reg_mode)
   /* Force a reload of the SUBREG_REG if this is a constant or PLUS or
      if there may be a problem accessing OPERAND in the outer
      mode.  */
-  if ((REG_P (reg)
-       && REGNO (reg) >= FIRST_PSEUDO_REGISTER
+  if ((REG_P (reg) && REGNO (reg) >= FIRST_PSEUDO_REGISTER
        && (hard_regno = lra_get_regno_hard_regno (REGNO (reg))) >= 0
        /* Don't reload paradoxical subregs because we could be looping
 	  having repeatedly final regno out of hard regs range.  */
        && (hard_regno_nregs (hard_regno, innermode)
 	   >= hard_regno_nregs (hard_regno, mode))
-       && simplify_subreg_regno (hard_regno, innermode,
-				 SUBREG_BYTE (operand), mode) < 0
+       && simplify_subreg_regno (hard_regno, innermode, SUBREG_BYTE (operand),
+				 mode)
+	    < 0
        /* Don't reload subreg for matching reload.  It is actually
 	  valid subreg in LRA.  */
-       && ! LRA_SUBREG_P (operand))
-      || CONSTANT_P (reg) || GET_CODE (reg) == PLUS || MEM_P (reg))
+       && !LRA_SUBREG_P (operand))
+      || CONSTANT_P (reg) || PLUS_P (reg) || MEM_P (reg))
     {
       enum reg_class rclass;
 
@@ -3377,8 +3377,7 @@  equiv_address_substitution (struct address_info *ad)
 	  *base_term = new_base_reg;
 	  change_p = true;
 	}
-      else if (GET_CODE (new_base_reg) == PLUS
-	       && REG_P (XEXP (new_base_reg, 0))
+      else if (PLUS_P (new_base_reg) && REG_P (XEXP (new_base_reg, 0))
 	       && poly_int_rtx_p (XEXP (new_base_reg, 1), &offset)
 	       && can_add_disp_p (ad))
 	{
@@ -3397,11 +3396,9 @@  equiv_address_substitution (struct address_info *ad)
 	  *index_term = new_index_reg;
 	  change_p = true;
 	}
-      else if (GET_CODE (new_index_reg) == PLUS
-	       && REG_P (XEXP (new_index_reg, 0))
+      else if (PLUS_P (new_index_reg) && REG_P (XEXP (new_index_reg, 0))
 	       && poly_int_rtx_p (XEXP (new_index_reg, 1), &offset)
-	       && can_add_disp_p (ad)
-	       && (scale = get_index_scale (ad)))
+	       && can_add_disp_p (ad) && (scale = get_index_scale (ad)))
 	{
 	  disp += offset * scale;
 	  *index_term = XEXP (new_index_reg, 0);
@@ -3720,11 +3717,9 @@  process_address_1 (int nop, bool check_only_p,
       last_insn = get_last_insn ();
       /* If we generated at least two insns, try last insn source as
 	 an address.  If we succeed, we generate one less insn.  */
-      if (REG_P (new_reg)
-	  && last_insn != insns
+      if (REG_P (new_reg) && last_insn != insns
 	  && (set = single_set (last_insn)) != NULL_RTX
-	  && GET_CODE (SET_SRC (set)) == PLUS
-	  && REG_P (XEXP (SET_SRC (set), 0))
+	  && PLUS_P (SET_SRC (set)) && REG_P (XEXP (SET_SRC (set), 0))
 	  && CONSTANT_P (XEXP (SET_SRC (set), 1)))
 	{
 	  *ad.inner = SET_SRC (set);
@@ -3839,10 +3834,9 @@  emit_inc (enum reg_class new_rclass, rtx in, rtx value, poly_int64 inc_amount)
 
   if (GET_CODE (value) == PRE_MODIFY || GET_CODE (value) == POST_MODIFY)
     {
-      lra_assert (GET_CODE (XEXP (value, 1)) == PLUS
-		  || GET_CODE (XEXP (value, 1)) == MINUS);
+      lra_assert (PLUS_P (XEXP (value, 1)) || MINUS_P (XEXP (value, 1)));
       lra_assert (rtx_equal_p (XEXP (XEXP (value, 1), 0), XEXP (value, 0)));
-      plus_p = GET_CODE (XEXP (value, 1)) == PLUS;
+      plus_p = PLUS_P (XEXP (value, 1));
       inc = XEXP (XEXP (value, 1), 1);
     }
   else
diff --git a/gcc/lra-eliminations.cc b/gcc/lra-eliminations.cc
index c630ff4af2d..ec81d272401 100644
--- a/gcc/lra-eliminations.cc
+++ b/gcc/lra-eliminations.cc
@@ -213,13 +213,13 @@  form_sum (rtx x, rtx y)
   else if (CONSTANT_P (x))
     std::swap (x, y);
 
-  if (GET_CODE (x) == PLUS && CONSTANT_P (XEXP (x, 1)))
+  if (PLUS_P (x) && CONSTANT_P (XEXP (x, 1)))
     return form_sum (XEXP (x, 0), form_sum (XEXP (x, 1), y));
 
   /* Note that if the operands of Y are specified in the opposite
      order in the recursive calls below, infinite recursion will
      occur.  */
-  if (GET_CODE (y) == PLUS && CONSTANT_P (XEXP (y, 1)))
+  if (PLUS_P (y) && CONSTANT_P (XEXP (y, 1)))
     return form_sum (form_sum (x, XEXP (y, 0)), XEXP (y, 1));
 
   /* If both constant, encapsulate sum.	 Otherwise, just form sum.  A
@@ -292,8 +292,7 @@  move_plus_up (rtx x)
   subreg_reg = SUBREG_REG (x);
   x_mode = GET_MODE (x);
   subreg_reg_mode = GET_MODE (subreg_reg);
-  if (!paradoxical_subreg_p (x)
-      && GET_CODE (subreg_reg) == PLUS
+  if (!paradoxical_subreg_p (x) && PLUS_P (subreg_reg)
       && CONSTANT_P (XEXP (subreg_reg, 1))
       && GET_MODE_CLASS (x_mode) == MODE_INT
       && GET_MODE_CLASS (subreg_reg_mode) == MODE_INT)
@@ -570,8 +569,7 @@  lra_eliminate_regs_1 (rtx_insn *insn, rtx x, machine_mode mem_mode,
 	 modified.  LRA has already make sure that this does not
 	 happen. The only remaining case we need to consider here is
 	 that the increment value may be an eliminable register.  */
-      if (GET_CODE (XEXP (x, 1)) == PLUS
-	  && XEXP (XEXP (x, 1), 0) == XEXP (x, 0))
+      if (PLUS_P (XEXP (x, 1)) && XEXP (XEXP (x, 1), 0) == XEXP (x, 0))
 	{
 	  rtx new_rtx = lra_eliminate_regs_1 (insn, XEXP (XEXP (x, 1), 1),
 					      mem_mode, subst_p, update_p,
@@ -744,8 +742,7 @@  mark_not_eliminable (rtx x, machine_mode mem_mode)
     case PRE_MODIFY:
       if (XEXP (x, 0) == stack_pointer_rtx
 	  && ((code != PRE_MODIFY && code != POST_MODIFY)
-	      || (GET_CODE (XEXP (x, 1)) == PLUS
-		  && XEXP (x, 0) == XEXP (XEXP (x, 1), 0)
+	      || (PLUS_P (XEXP (x, 1)) && XEXP (x, 0) == XEXP (XEXP (x, 1), 0)
 		  && poly_int_rtx_p (XEXP (XEXP (x, 1), 1), &offset))))
 	{
 	  poly_int64 size = GET_MODE_SIZE (mem_mode);
@@ -807,8 +804,7 @@  mark_not_eliminable (rtx x, machine_mode mem_mode)
       return;
 
     case SET:
-      if (SET_DEST (x) == stack_pointer_rtx
-	  && GET_CODE (SET_SRC (x)) == PLUS
+      if (SET_DEST (x) == stack_pointer_rtx && PLUS_P (SET_SRC (x))
 	  && XEXP (SET_SRC (x), 0) == SET_DEST (x)
 	  && poly_int_rtx_p (XEXP (SET_SRC (x), 1), &offset))
 	{
@@ -909,7 +905,7 @@  eliminate_regs_in_insn (rtx_insn *insn, bool replace_p, bool first_p,
   poly_int64 offset = 0;
   if (old_set && REG_P (SET_DEST (old_set)))
     {
-      if (GET_CODE (SET_SRC (old_set)) == PLUS)
+      if (PLUS_P (SET_SRC (old_set)))
 	plus_src = SET_SRC (old_set);
       /* First see if the source is of the form (plus (...) CST).  */
       if (plus_src && poly_int_rtx_p (XEXP (plus_src, 1), &offset))
@@ -1042,12 +1038,11 @@  eliminate_regs_in_insn (rtx_insn *insn, bool replace_p, bool first_p,
      after all reloads calculating its offset.  This permits to keep register
      pressure under control and helps to avoid LRA cycling in patalogical
      cases.  */
-  if (! replace_p && (set = single_set (insn)) != NULL
-      && GET_CODE (SET_SRC (set)) == PLUS
-      && GET_CODE (XEXP (SET_SRC (set), 0)) == PLUS)
+  if (!replace_p && (set = single_set (insn)) != NULL && PLUS_P (SET_SRC (set))
+      && PLUS_P (XEXP (SET_SRC (set), 0)))
     {
       rtx reg1, reg2, op1, op2;
-      
+
       reg1 = op1 = XEXP (XEXP (SET_SRC (set), 0), 0);
       reg2 = op2 = XEXP (SET_SRC (set), 1);
       if (GET_CODE (reg1) == SUBREG)
diff --git a/gcc/lra.cc b/gcc/lra.cc
index 1444cb75914..cf0edd8b487 100644
--- a/gcc/lra.cc
+++ b/gcc/lra.cc
@@ -355,7 +355,7 @@  lra_emit_add (rtx x, rtx y, rtx z)
   else
     {
       disp = a2 = NULL_RTX;
-      if (GET_CODE (y) == PLUS)
+      if (PLUS_P (y))
 	{
 	  a1 = XEXP (y, 0);
 	  a2 = XEXP (y, 1);
@@ -370,14 +370,14 @@  lra_emit_add (rtx x, rtx y, rtx z)
 	    a2 = z;
 	}
       index_scale = scale = NULL_RTX;
-      if (GET_CODE (a1) == MULT)
+      if (MULT_P (a1))
 	{
 	  index_scale = a1;
 	  index = XEXP (a1, 0);
 	  scale = XEXP (a1, 1);
 	  base = a2;
 	}
-      else if (a2 != NULL_RTX && GET_CODE (a2) == MULT)
+      else if (a2 != NULL_RTX && MULT_P (a2))
 	{
 	  index_scale = a2;
 	  index = XEXP (a2, 0);
diff --git a/gcc/modulo-sched.cc b/gcc/modulo-sched.cc
index 162de199da6..95f6f805e9e 100644
--- a/gcc/modulo-sched.cc
+++ b/gcc/modulo-sched.cc
@@ -354,7 +354,7 @@  doloop_register_get (rtx_insn *head, rtx_insn *tail)
 
   if (REG_P (XEXP (condition, 0)))
     reg = XEXP (condition, 0);
-  else if (GET_CODE (XEXP (condition, 0)) == PLUS
+  else if (PLUS_P (XEXP (condition, 0))
 	   && REG_P (XEXP (XEXP (condition, 0), 0)))
     reg = XEXP (XEXP (condition, 0), 0);
   else
diff --git a/gcc/postreload.cc b/gcc/postreload.cc
index 41f61d32648..c1b2a837066 100644
--- a/gcc/postreload.cc
+++ b/gcc/postreload.cc
@@ -89,9 +89,8 @@  reload_cse_simplify (rtx_insn *insn, rtx testreg)
   /* Remember if this insn has been sp += const_int.  */
   rtx sp_set = set_for_reg_notes (insn);
   rtx sp_addend = NULL_RTX;
-  if (sp_set
-      && SET_DEST (sp_set) == stack_pointer_rtx
-      && GET_CODE (SET_SRC (sp_set)) == PLUS
+  if (sp_set && SET_DEST (sp_set) == stack_pointer_rtx
+      && PLUS_P (SET_SRC (sp_set))
       && XEXP (SET_SRC (sp_set), 0) == stack_pointer_rtx
       && CONST_INT_P (XEXP (SET_SRC (sp_set), 1)))
     sp_addend = XEXP (SET_SRC (sp_set), 1);
@@ -897,9 +896,7 @@  try_replace_in_use (struct reg_use *use, rtx reg, rtx src)
   else
     {
       rtx new_set = single_set (use_insn);
-      if (new_set
-	  && REG_P (SET_DEST (new_set))
-	  && GET_CODE (SET_SRC (new_set)) == PLUS
+      if (new_set && REG_P (SET_DEST (new_set)) && PLUS_P (SET_SRC (new_set))
 	  && REG_P (XEXP (SET_SRC (new_set), 0))
 	  && CONSTANT_P (XEXP (SET_SRC (new_set), 1)))
 	{
@@ -1110,11 +1107,8 @@  reload_combine_recognize_pattern (rtx_insn *insn)
      Also, explicitly check that REGX != REGY; our life information
      does not yet show whether REGY changes in this insn.  */
 
-  if (GET_CODE (src) == PLUS
-      && reg_state[regno].all_offsets_match
-      && last_index_reg != -1
-      && REG_P (XEXP (src, 1))
-      && rtx_equal_p (XEXP (src, 0), reg)
+  if (PLUS_P (src) && reg_state[regno].all_offsets_match && last_index_reg != -1
+      && REG_P (XEXP (src, 1)) && rtx_equal_p (XEXP (src, 0), reg)
       && !rtx_equal_p (XEXP (src, 1), reg)
       && last_label_ruid < reg_state[regno].use_ruid)
     {
@@ -1987,9 +1981,7 @@  reload_cse_move2add (rtx_insn *first)
 		  rtx set = NULL_RTX;
 		  if (next)
 		    set = single_set (next);
-		  if (set
-		      && SET_DEST (set) == reg
-		      && GET_CODE (SET_SRC (set)) == PLUS
+		  if (set && SET_DEST (set) == reg && PLUS_P (SET_SRC (set))
 		      && XEXP (SET_SRC (set), 0) == reg
 		      && CONST_INT_P (XEXP (SET_SRC (set), 1)))
 		    {
@@ -2052,8 +2044,7 @@  reload_cse_move2add (rtx_insn *first)
 	     ...
 	     (set (REGY) (CONST (PLUS (REGX) (CONST_INT B-A))))  */
 	  if ((GET_CODE (src) == SYMBOL_REF
-	       || (GET_CODE (src) == CONST
-		   && GET_CODE (XEXP (src, 0)) == PLUS
+	       || (GET_CODE (src) == CONST && PLUS_P (XEXP (src, 0))
 		   && GET_CODE (XEXP (XEXP (src, 0), 0)) == SYMBOL_REF
 		   && CONST_INT_P (XEXP (XEXP (src, 0), 1))))
 	      && dbg_cnt (cse2_move2add))
@@ -2193,7 +2184,7 @@  move2add_note_store (rtx dst, const_rtx set, void *data)
 	  off = const0_rtx;
 	}
       else if (note && GET_CODE (XEXP (note, 0)) == CONST
-	       && GET_CODE (XEXP (XEXP (note, 0), 0)) == PLUS
+	       && PLUS_P (XEXP (XEXP (note, 0), 0))
 	       && GET_CODE (XEXP (XEXP (XEXP (note, 0), 0), 0)) == SYMBOL_REF
 	       && CONST_INT_P (XEXP (XEXP (XEXP (note, 0), 0), 1)))
 	{
diff --git a/gcc/reginfo.cc b/gcc/reginfo.cc
index 705779d5c18..92614074676 100644
--- a/gcc/reginfo.cc
+++ b/gcc/reginfo.cc
@@ -1080,12 +1080,9 @@  reg_scan_mark_refs (rtx x, rtx_insn *insn)
 	     optimizations).  So only set REG_POINTER on the destination
 	     pseudo if this is the only set of that pseudo.  */
 	  && DF_REG_DEF_COUNT (REGNO (SET_DEST (x))) == 1
-	  && ! REG_USERVAR_P (SET_DEST (x))
-	  && ! REG_POINTER (SET_DEST (x))
-	  && ((REG_P (SET_SRC (x))
-	       && REG_POINTER (SET_SRC (x)))
-	      || ((GET_CODE (SET_SRC (x)) == PLUS
-		   || GET_CODE (SET_SRC (x)) == LO_SUM)
+	  && !REG_USERVAR_P (SET_DEST (x)) && !REG_POINTER (SET_DEST (x))
+	  && ((REG_P (SET_SRC (x)) && REG_POINTER (SET_SRC (x)))
+	      || ((PLUS_P (SET_SRC (x)) || GET_CODE (SET_SRC (x)) == LO_SUM)
 		  && CONST_INT_P (XEXP (SET_SRC (x), 1))
 		  && REG_P (XEXP (SET_SRC (x), 0))
 		  && REG_POINTER (XEXP (SET_SRC (x), 0)))
@@ -1096,8 +1093,7 @@  reg_scan_mark_refs (rtx x, rtx_insn *insn)
 		  && (GET_CODE (XEXP (SET_SRC (x), 0)) == CONST
 		      || GET_CODE (XEXP (SET_SRC (x), 0)) == SYMBOL_REF
 		      || GET_CODE (XEXP (SET_SRC (x), 0)) == LABEL_REF))
-	      || ((GET_CODE (SET_SRC (x)) == PLUS
-		   || GET_CODE (SET_SRC (x)) == LO_SUM)
+	      || ((PLUS_P (SET_SRC (x)) || GET_CODE (SET_SRC (x)) == LO_SUM)
 		  && (GET_CODE (XEXP (SET_SRC (x), 1)) == CONST
 		      || GET_CODE (XEXP (SET_SRC (x), 1)) == SYMBOL_REF
 		      || GET_CODE (XEXP (SET_SRC (x), 1)) == LABEL_REF))
diff --git a/gcc/reload.cc b/gcc/reload.cc
index 3ed901e3944..f7659c2d43e 100644
--- a/gcc/reload.cc
+++ b/gcc/reload.cc
@@ -846,7 +846,7 @@  reload_inner_reg_of_subreg (rtx x, machine_mode mode, bool output)
   inner = SUBREG_REG (x);
 
   /* If INNER is a constant or PLUS, then INNER will need reloading.  */
-  if (CONSTANT_P (inner) || GET_CODE (inner) == PLUS)
+  if (CONSTANT_P (inner) || PLUS_P (inner))
     return true;
 
   /* If INNER is not a hard register, then INNER will not need reloading.  */
@@ -1058,33 +1058,30 @@  push_reload (rtx in, rtx out, rtx *inloc, rtx *outloc,
 
   scalar_int_mode inner_mode;
   if (in != 0 && GET_CODE (in) == SUBREG
-      && targetm.can_change_mode_class (GET_MODE (SUBREG_REG (in)),
-					inmode, rclass)
+      && targetm.can_change_mode_class (GET_MODE (SUBREG_REG (in)), inmode,
+					rclass)
       && contains_allocatable_reg_of_mode[rclass][GET_MODE (SUBREG_REG (in))]
       && (strict_low
 	  || (subreg_lowpart_p (in)
-	      && (CONSTANT_P (SUBREG_REG (in))
-		  || GET_CODE (SUBREG_REG (in)) == PLUS
+	      && (CONSTANT_P (SUBREG_REG (in)) || PLUS_P (SUBREG_REG (in))
 		  || (((REG_P (SUBREG_REG (in))
 			&& REGNO (SUBREG_REG (in)) >= FIRST_PSEUDO_REGISTER)
 		       || MEM_P (SUBREG_REG (in)))
 		      && (paradoxical_subreg_p (inmode,
 						GET_MODE (SUBREG_REG (in)))
 			  || (known_le (GET_MODE_SIZE (inmode), UNITS_PER_WORD)
-			      && is_a <scalar_int_mode> (GET_MODE (SUBREG_REG
-								   (in)),
-							 &inner_mode)
+			      && is_a<scalar_int_mode> (
+				GET_MODE (SUBREG_REG (in)), &inner_mode)
 			      && GET_MODE_SIZE (inner_mode) <= UNITS_PER_WORD
 			      && paradoxical_subreg_p (inmode, inner_mode)
 			      && LOAD_EXTEND_OP (inner_mode) != UNKNOWN)
 			  || (WORD_REGISTER_OPERATIONS
 			      && partial_subreg_p (inmode,
 						   GET_MODE (SUBREG_REG (in)))
-			      && (known_equal_after_align_down
-				  (GET_MODE_SIZE (inmode) - 1,
-				   GET_MODE_SIZE (GET_MODE (SUBREG_REG
-							    (in))) - 1,
-				   UNITS_PER_WORD)))))
+			      && (known_equal_after_align_down (
+				GET_MODE_SIZE (inmode) - 1,
+				GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))) - 1,
+				UNITS_PER_WORD)))))
 		  || (REG_P (SUBREG_REG (in))
 		      && REGNO (SUBREG_REG (in)) < FIRST_PSEUDO_REGISTER
 		      /* The case where out is nonzero
@@ -1106,9 +1103,9 @@  push_reload (rtx in, rtx out, rtx *inloc, rtx *outloc,
 	  || (REG_P (SUBREG_REG (in))
 	      && REGNO (SUBREG_REG (in)) >= FIRST_PSEUDO_REGISTER
 	      && reg_equiv_mem (REGNO (SUBREG_REG (in)))
-	      && (mode_dependent_address_p
-		  (XEXP (reg_equiv_mem (REGNO (SUBREG_REG (in))), 0),
-		   MEM_ADDR_SPACE (reg_equiv_mem (REGNO (SUBREG_REG (in)))))))))
+	      && (mode_dependent_address_p (
+		XEXP (reg_equiv_mem (REGNO (SUBREG_REG (in))), 0),
+		MEM_ADDR_SPACE (reg_equiv_mem (REGNO (SUBREG_REG (in)))))))))
     {
 #ifdef LIMIT_RELOAD_CLASS
       in_subreg_loc = inloc;
@@ -1146,11 +1143,9 @@  push_reload (rtx in, rtx out, rtx *inloc, rtx *outloc,
 						   SUBREG_BYTE (in),
 						   GET_MODE (in)),
 			      REGNO (SUBREG_REG (in)));
-      else if (CONSTANT_P (SUBREG_REG (in))
-               || GET_CODE (SUBREG_REG (in)) == PLUS)
-	subreg_in_class = find_valid_class_1 (inmode,
-					      GET_MODE (SUBREG_REG (in)),
-					      rclass);
+      else if (CONSTANT_P (SUBREG_REG (in)) || PLUS_P (SUBREG_REG (in)))
+	subreg_in_class
+	  = find_valid_class_1 (inmode, GET_MODE (SUBREG_REG (in)), rclass);
 
       /* This relies on the fact that emit_reload_insns outputs the
 	 instructions for input reloads of type RELOAD_OTHER in the same
@@ -1244,7 +1239,7 @@  push_reload (rtx in, rtx out, rtx *inloc, rtx *outloc,
 
   /* If IN appears in OUT, we can't share any input-only reload for IN.  */
   if (in != 0 && out != 0 && MEM_P (out)
-      && (REG_P (in) || MEM_P (in) || GET_CODE (in) == PLUS)
+      && (REG_P (in) || MEM_P (in) || PLUS_P (in))
       && reg_overlap_mentioned_for_reload_p (in, XEXP (out, 0)))
     dont_share = 1;
 
@@ -2399,7 +2394,7 @@  decompose (rtx x)
 
 	if (GET_CODE (addr) == PRE_MODIFY || GET_CODE (addr) == POST_MODIFY)
 	  {
-	    if (GET_CODE (XEXP (addr, 1)) == PLUS
+	    if (PLUS_P (XEXP (addr, 1))
 		&& XEXP (addr, 0) == XEXP (XEXP (addr, 1), 0)
 		&& CONSTANT_P (XEXP (XEXP (addr, 1), 1)))
 	      {
@@ -2416,7 +2411,7 @@  decompose (rtx x)
 	    addr = XEXP (addr, 0);
 	    all_const = 1;
 	  }
-	if (GET_CODE (addr) == PLUS)
+	if (PLUS_P (addr))
 	  {
 	    if (CONSTANT_P (XEXP (addr, 0)))
 	      {
@@ -2437,7 +2432,7 @@  decompose (rtx x)
 	  }
 	if (GET_CODE (offset) == CONST)
 	  offset = XEXP (offset, 0);
-	if (GET_CODE (offset) == PLUS)
+	if (PLUS_P (offset))
 	  {
 	    if (CONST_INT_P (XEXP (offset, 0)))
 	      {
@@ -2461,7 +2456,7 @@  decompose (rtx x)
 	    offset = const0_rtx;
 	  }
 
-	if (all_const && GET_CODE (base) == PLUS)
+	if (all_const && PLUS_P (base))
 	  base = gen_rtx_CONST (GET_MODE (base), base);
 
 	gcc_assert (CONST_INT_P (offset));
@@ -2849,9 +2844,9 @@  find_reloads (rtx_insn *insn, int replace, int ind_levels, int live_known,
 	     PLUS or MULT or ASHIFT, re-recognize and try again.  */
 	  if ((OBJECT_P (*recog_data.operand_loc[i])
 	       || GET_CODE (*recog_data.operand_loc[i]) == SUBREG)
-	      && (GET_CODE (recog_data.operand[i]) == MULT
+	      && (MULT_P (recog_data.operand[i])
 		  || GET_CODE (recog_data.operand[i]) == ASHIFT
-		  || GET_CODE (recog_data.operand[i]) == PLUS))
+		  || PLUS_P (recog_data.operand[i])))
 	    {
 	      INSN_CODE (insn) = -1;
 	      retval = find_reloads (insn, replace, ind_levels, live_known,
@@ -3110,7 +3105,7 @@  find_reloads (rtx_insn *insn, int replace, int ind_levels, int live_known,
 		     be a problem accessing OPERAND in the outer mode.  */
 		  scalar_int_mode inner_mode;
 		  if (CONSTANT_P (operand)
-		      || GET_CODE (operand) == PLUS
+		      || PLUS_P (operand)
 		      /* We must force a reload of paradoxical SUBREGs
 			 of a MEM because the alignment of the inner value
 			 may not be enough to do the outer reference.  On
@@ -3118,14 +3113,14 @@  find_reloads (rtx_insn *insn, int replace, int ind_levels, int live_known,
 			 the object.
 
 			 On machines that extend byte operations and we have a
-			 SUBREG where both the inner and outer modes are no wider
-			 than a word and the inner mode is narrower, is integral,
-			 and gets extended when loaded from memory, combine.cc has
-			 made assumptions about the behavior of the machine in such
-			 register access.  If the data is, in fact, in memory we
-			 must always load using the size assumed to be in the
-			 register and let the insn do the different-sized
-			 accesses.
+			 SUBREG where both the inner and outer modes are no
+			 wider than a word and the inner mode is narrower, is
+			 integral, and gets extended when loaded from memory,
+			 combine.cc has made assumptions about the behavior of
+			 the machine in such register access.  If the data is,
+			 in fact, in memory we must always load using the size
+			 assumed to be in the register and let the insn do the
+			 different-sized accesses.
 
 			 This is doubly true if WORD_REGISTER_OPERATIONS.  In
 			 this case eliminate_regs has left non-paradoxical
@@ -3139,16 +3134,16 @@  find_reloads (rtx_insn *insn, int replace, int ind_levels, int live_known,
 			   || (REG_P (operand)
 			       && REGNO (operand) >= FIRST_PSEUDO_REGISTER))
 			  && (WORD_REGISTER_OPERATIONS
-			      || (((maybe_lt
-				    (GET_MODE_BITSIZE (GET_MODE (operand)),
-				     BIGGEST_ALIGNMENT))
-				   && (paradoxical_subreg_p
-				       (operand_mode[i], GET_MODE (operand)))))
+			      || (((maybe_lt (GET_MODE_BITSIZE (
+						GET_MODE (operand)),
+					      BIGGEST_ALIGNMENT))
+				   && (paradoxical_subreg_p (
+				     operand_mode[i], GET_MODE (operand)))))
 			      || BYTES_BIG_ENDIAN
 			      || (known_le (GET_MODE_SIZE (operand_mode[i]),
 					    UNITS_PER_WORD)
-				  && (is_a <scalar_int_mode>
-				      (GET_MODE (operand), &inner_mode))
+				  && (is_a<scalar_int_mode> (GET_MODE (operand),
+							     &inner_mode))
 				  && (GET_MODE_SIZE (inner_mode)
 				      <= UNITS_PER_WORD)
 				  && paradoxical_subreg_p (operand_mode[i],
@@ -3163,11 +3158,10 @@  find_reloads (rtx_insn *insn, int replace, int ind_levels, int live_known,
 		      || (REG_P (operand)
 			  && REGNO (operand) >= FIRST_PSEUDO_REGISTER
 			  && reg_equiv_mem (REGNO (operand))
-			  && (mode_dependent_address_p
-			      (XEXP (reg_equiv_mem (REGNO (operand)), 0),
-			       (MEM_ADDR_SPACE
-				(reg_equiv_mem (REGNO (operand)))))))
-		      )
+			  && (mode_dependent_address_p (
+			    XEXP (reg_equiv_mem (REGNO (operand)), 0),
+			    (MEM_ADDR_SPACE (
+			      reg_equiv_mem (REGNO (operand))))))))
 		    force_reload = 1;
 		}
 
@@ -3944,7 +3938,7 @@  find_reloads (rtx_insn *insn, int replace, int ind_levels, int live_known,
 	    mode = GET_MODE (op);
 	  }
 
-	if (GET_CODE (op) == PLUS)
+	if (PLUS_P (op))
 	  {
 	    plus = op;
 	    op = XEXP (op, 1);
@@ -4927,7 +4921,7 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
 	      if (ind_levels > 0
 		  && strict_memory_address_addr_space_p (mode, tem, as)
 		  && (REG_P (XEXP (tem, 0))
-		      || (GET_CODE (XEXP (tem, 0)) == PLUS
+		      || (PLUS_P (XEXP (tem, 0))
 			  && REG_P (XEXP (XEXP (tem, 0), 0))
 			  && CONSTANT_P (XEXP (XEXP (tem, 0), 1)))))
 		{
@@ -4980,9 +4974,7 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
 	 So do a tree-walk to find and eliminate all such regs.  */
 
       /* But first quickly dispose of a common case.  */
-      if (GET_CODE (ad) == PLUS
-	  && CONST_INT_P (XEXP (ad, 1))
-	  && REG_P (XEXP (ad, 0))
+      if (PLUS_P (ad) && CONST_INT_P (XEXP (ad, 1)) && REG_P (XEXP (ad, 0))
 	  && reg_equiv_constant (REGNO (XEXP (ad, 0))) == 0)
 	return 0;
 
@@ -5056,12 +5048,11 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
 	 taken care of above.  */
 
       if (ind_levels == 0
-	  || (GET_CODE (XEXP (tem, 0)) == SYMBOL_REF && ! indirect_symref_ok)
+	  || (GET_CODE (XEXP (tem, 0)) == SYMBOL_REF && !indirect_symref_ok)
 	  || MEM_P (XEXP (tem, 0))
-	  || ! (REG_P (XEXP (tem, 0))
-		|| (GET_CODE (XEXP (tem, 0)) == PLUS
-		    && REG_P (XEXP (XEXP (tem, 0), 0))
-		    && CONST_INT_P (XEXP (XEXP (tem, 0), 1)))))
+	  || !(REG_P (XEXP (tem, 0))
+	       || (PLUS_P (XEXP (tem, 0)) && REG_P (XEXP (XEXP (tem, 0), 0))
+		   && CONST_INT_P (XEXP (XEXP (tem, 0), 1)))))
 	{
 	  /* Must use TEM here, not AD, since it is the one that will
 	     have any subexpressions reloaded, if needed.  */
@@ -5080,8 +5071,7 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
      Handle all base registers here, not just fp/ap/sp, because on some
      targets (namely SH) we can also get too large displacements from
      big-endian corrections.  */
-  else if (GET_CODE (ad) == PLUS
-	   && REG_P (XEXP (ad, 0))
+  else if (PLUS_P (ad) && REG_P (XEXP (ad, 0))
 	   && REGNO (XEXP (ad, 0)) < FIRST_PSEUDO_REGISTER
 	   && CONST_INT_P (XEXP (ad, 1))
 	   && (regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode, as, PLUS,
@@ -5089,8 +5079,8 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
 	       /* Similarly, if we were to reload the base register and the
 		  mem+offset address is still invalid, then we want to reload
 		  the whole address, not just the base register.  */
-	       || ! maybe_memory_address_addr_space_p
-		     (mode, ad, as, &(XEXP (ad, 0)))))
+	       || !maybe_memory_address_addr_space_p (mode, ad, as,
+						      &(XEXP (ad, 0)))))
 
     {
       /* Unshare the MEM rtx so we can safely alter it.  */
@@ -5160,11 +5150,10 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
       enum rtx_code inner_code;
 
       if (GET_CODE (ad) != PLUS)
-	  continue;
+	continue;
 
       inner_code = GET_CODE (XEXP (ad, 0));
-      if (!(GET_CODE (ad) == PLUS
-	    && CONST_INT_P (XEXP (ad, 1))
+      if (!(PLUS_P (ad) && CONST_INT_P (XEXP (ad, 1))
 	    && (inner_code == PLUS || inner_code == LO_SUM)))
 	continue;
 
@@ -5188,11 +5177,11 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
 	  rtx offset_reg;
 	  enum reg_class cls;
 
-	  offset_reg = plus_constant (GET_MODE (ad), operand,
-				      INTVAL (XEXP (ad, 1)));
+	  offset_reg
+	    = plus_constant (GET_MODE (ad), operand, INTVAL (XEXP (ad, 1)));
 
 	  /* Form the adjusted address.  */
-	  if (GET_CODE (XEXP (ad, 0)) == PLUS)
+	  if (PLUS_P (XEXP (ad, 0)))
 	    ad = gen_rtx_PLUS (GET_MODE (ad),
 			       op_index == 0 ? offset_reg : addend,
 			       op_index == 0 ? addend : offset_reg);
@@ -5220,7 +5209,7 @@  find_reloads_address (machine_mode mode, rtx *memrefloc, rtx ad,
      in a sum is replaced.  */
 
   tem = ad;
-  if (GET_CODE (ad) == PLUS)
+  if (PLUS_P (ad))
     tem = subst_indexed_address (ad);
   if (tem != ad && strict_memory_address_addr_space_p (mode, tem, as))
     {
@@ -5358,12 +5347,12 @@  form_sum (machine_mode mode, rtx x, rtx y)
   else if (CONSTANT_P (x))
     tem = x, x = y, y = tem;
 
-  if (GET_CODE (x) == PLUS && CONSTANT_P (XEXP (x, 1)))
+  if (PLUS_P (x) && CONSTANT_P (XEXP (x, 1)))
     return form_sum (mode, XEXP (x, 0), form_sum (mode, XEXP (x, 1), y));
 
   /* Note that if the operands of Y are specified in the opposite
      order in the recursive calls below, infinite recursion will occur.  */
-  if (GET_CODE (y) == PLUS && CONSTANT_P (XEXP (y, 1)))
+  if (PLUS_P (y) && CONSTANT_P (XEXP (y, 1)))
     return form_sum (mode, form_sum (mode, x, XEXP (y, 0)), XEXP (y, 1));
 
   /* If both constant, encapsulate sum.  Otherwise, just form sum.  A
@@ -5400,7 +5389,7 @@  subst_indexed_address (rtx addr)
   rtx tem;
   int regno;
 
-  if (GET_CODE (addr) == PLUS)
+  if (PLUS_P (addr))
     {
       /* Try to find a register to replace.  */
       op0 = XEXP (addr, 0), op1 = XEXP (addr, 1), op2 = 0;
@@ -5409,24 +5398,20 @@  subst_indexed_address (rtx addr)
 	  && reg_renumber[regno] < 0
 	  && reg_equiv_constant (regno) != 0)
 	op0 = reg_equiv_constant (regno);
-      else if (REG_P (op1)
-	       && (regno = REGNO (op1)) >= FIRST_PSEUDO_REGISTER
-	       && reg_renumber[regno] < 0
-	       && reg_equiv_constant (regno) != 0)
+      else if (REG_P (op1) && (regno = REGNO (op1)) >= FIRST_PSEUDO_REGISTER
+	       && reg_renumber[regno] < 0 && reg_equiv_constant (regno) != 0)
 	op1 = reg_equiv_constant (regno);
-      else if (GET_CODE (op0) == PLUS
-	       && (tem = subst_indexed_address (op0)) != op0)
+      else if (PLUS_P (op0) && (tem = subst_indexed_address (op0)) != op0)
 	op0 = tem;
-      else if (GET_CODE (op1) == PLUS
-	       && (tem = subst_indexed_address (op1)) != op1)
+      else if (PLUS_P (op1) && (tem = subst_indexed_address (op1)) != op1)
 	op1 = tem;
       else
 	return addr;
 
       /* Pick out up to three things to add.  */
-      if (GET_CODE (op1) == PLUS)
+      if (PLUS_P (op1))
 	op2 = XEXP (op1, 1), op1 = XEXP (op1, 0);
-      else if (GET_CODE (op0) == PLUS)
+      else if (PLUS_P (op0))
 	op2 = op1, op1 = XEXP (op0, 1), op0 = XEXP (op0, 0);
 
       /* Compute the sum.  */
@@ -5693,7 +5678,7 @@  find_reloads_address_1 (machine_mode mode, addr_space_t as,
 	   conservative and class it as RELOAD_OTHER.  */
 	if ((REG_P (XEXP (op1, 1))
 	     && !REGNO_OK_FOR_INDEX_P (REGNO (XEXP (op1, 1))))
-	    || GET_CODE (XEXP (op1, 1)) == PLUS)
+	    || PLUS_P (XEXP (op1, 1)))
 	  find_reloads_address_1 (mode, as, XEXP (op1, 1), 1, code, SCRATCH,
 				  &XEXP (op1, 1), opnum, RELOAD_OTHER,
 				  ind_levels, insn);
@@ -6092,15 +6077,14 @@  find_reloads_address_part (rtx x, rtx *loc, enum reg_class rclass,
 	  || targetm.preferred_reload_class (x, rclass) == NO_REGS))
     {
       x = force_const_mem (mode, x);
-      find_reloads_address (mode, &x, XEXP (x, 0), &XEXP (x, 0),
-			    opnum, type, ind_levels, 0);
+      find_reloads_address (mode, &x, XEXP (x, 0), &XEXP (x, 0), opnum, type,
+			    ind_levels, 0);
     }
 
-  else if (GET_CODE (x) == PLUS
-	   && CONSTANT_P (XEXP (x, 1))
+  else if (PLUS_P (x) && CONSTANT_P (XEXP (x, 1))
 	   && (!targetm.legitimate_constant_p (GET_MODE (x), XEXP (x, 1))
 	       || targetm.preferred_reload_class (XEXP (x, 1), rclass)
-		   == NO_REGS))
+		    == NO_REGS))
     {
       rtx tem;
 
@@ -6395,8 +6379,7 @@  find_replacement (rtx *loc)
 
   /* If *LOC is a PLUS, MINUS, or MULT, see if a replacement is scheduled for
      what's inside and make a new rtl if so.  */
-  if (GET_CODE (*loc) == PLUS || GET_CODE (*loc) == MINUS
-      || GET_CODE (*loc) == MULT)
+  if (PLUS_P (*loc) || MINUS_P (*loc) || MULT_P (*loc))
     {
       rtx x = find_replacement (&XEXP (*loc, 0));
       rtx y = find_replacement (&XEXP (*loc, 1));
@@ -6590,7 +6573,7 @@  reg_overlap_mentioned_for_reload_p (rtx x, rtx in)
     return reg_mentioned_p (x, in);
   else
     {
-      gcc_assert (GET_CODE (x) == PLUS);
+      gcc_assert (PLUS_P (x));
 
       /* We actually want to know if X is mentioned somewhere inside IN.
 	 We must not say that (plus (sp) (const_int 124)) is in
@@ -6601,7 +6584,7 @@  reg_overlap_mentioned_for_reload_p (rtx x, rtx in)
 	in = XEXP (in, 0);
       if (REG_P (in))
 	return 0;
-      else if (GET_CODE (in) == PLUS)
+      else if (PLUS_P (in))
 	return (rtx_equal_p (x, in)
 		|| reg_overlap_mentioned_for_reload_p (x, XEXP (in, 0))
 		|| reg_overlap_mentioned_for_reload_p (x, XEXP (in, 1)));
@@ -6710,12 +6693,10 @@  find_equiv_reg (rtx goal, rtx_insn *insn, enum reg_class rclass, int other,
     }
   else if (CONSTANT_P (goal))
     goal_const = 1;
-  else if (GET_CODE (goal) == PLUS
-	   && XEXP (goal, 0) == stack_pointer_rtx
+  else if (PLUS_P (goal) && XEXP (goal, 0) == stack_pointer_rtx
 	   && CONSTANT_P (XEXP (goal, 1)))
     goal_const = need_stable_sp = 1;
-  else if (GET_CODE (goal) == PLUS
-	   && XEXP (goal, 0) == frame_pointer_rtx
+  else if (PLUS_P (goal) && XEXP (goal, 0) == frame_pointer_rtx
 	   && CONSTANT_P (XEXP (goal, 1)))
     goal_const = 1;
   else
@@ -7114,9 +7095,8 @@  find_inc_amount (rtx x, rtx inced)
 	   || GET_CODE (addr) == POST_INC)
 	  && XEXP (addr, 0) == inced)
 	return GET_MODE_SIZE (GET_MODE (x));
-      else if ((GET_CODE (addr) == PRE_MODIFY
-		|| GET_CODE (addr) == POST_MODIFY)
-	       && GET_CODE (XEXP (addr, 1)) == PLUS
+      else if ((GET_CODE (addr) == PRE_MODIFY || GET_CODE (addr) == POST_MODIFY)
+	       && PLUS_P (XEXP (addr, 1))
 	       && XEXP (addr, 0) == XEXP (XEXP (addr, 1), 0)
 	       && XEXP (addr, 0) == inced
 	       && CONST_INT_P (XEXP (XEXP (addr, 1), 1)))
diff --git a/gcc/reload1.cc b/gcc/reload1.cc
index 728dc2a1a5c..09feb77b215 100644
--- a/gcc/reload1.cc
+++ b/gcc/reload1.cc
@@ -929,8 +929,7 @@  reload (rtx_insn *first, int global)
 	    else if (CONSTANT_P (XEXP (x, 0))
 		     || (REG_P (XEXP (x, 0))
 			 && REGNO (XEXP (x, 0)) < FIRST_PSEUDO_REGISTER)
-		     || (GET_CODE (XEXP (x, 0)) == PLUS
-			 && REG_P (XEXP (XEXP (x, 0), 0))
+		     || (PLUS_P (XEXP (x, 0)) && REG_P (XEXP (XEXP (x, 0), 0))
 			 && (REGNO (XEXP (XEXP (x, 0), 0))
 			     < FIRST_PSEUDO_REGISTER)
 			 && CONSTANT_P (XEXP (XEXP (x, 0), 1))))
@@ -2643,13 +2642,12 @@  eliminate_regs_1 (rtx x, machine_mode mem_mode, rtx insn,
 	       didn't get a hard register but has a reg_equiv_constant,
 	       we must replace the constant here since it may no longer
 	       be in the position of any operand.  */
-	    if (GET_CODE (new0) == PLUS && REG_P (new1)
+	    if (PLUS_P (new0) && REG_P (new1)
 		&& REGNO (new1) >= FIRST_PSEUDO_REGISTER
-		&& reg_renumber[REGNO (new1)] < 0
-		&& reg_equivs
+		&& reg_renumber[REGNO (new1)] < 0 && reg_equivs
 		&& reg_equiv_constant (REGNO (new1)) != 0)
 	      new1 = reg_equiv_constant (REGNO (new1));
-	    else if (GET_CODE (new1) == PLUS && REG_P (new0)
+	    else if (PLUS_P (new1) && REG_P (new0)
 		     && REGNO (new0) >= FIRST_PSEUDO_REGISTER
 		     && reg_renumber[REGNO (new0)] < 0
 		     && reg_equiv_constant (REGNO (new0)) != 0)
@@ -2774,11 +2772,10 @@  eliminate_regs_1 (rtx x, machine_mode mem_mode, rtx insn,
 	 elimination_effects has already make sure that this does not
 	 happen.  The only remaining case we need to consider here is
 	 that the increment value may be an eliminable register.  */
-      if (GET_CODE (XEXP (x, 1)) == PLUS
-	  && XEXP (XEXP (x, 1), 0) == XEXP (x, 0))
+      if (PLUS_P (XEXP (x, 1)) && XEXP (XEXP (x, 1), 0) == XEXP (x, 0))
 	{
-	  rtx new_rtx = eliminate_regs_1 (XEXP (XEXP (x, 1), 1), mem_mode,
-					  insn, true, for_costs);
+	  rtx new_rtx = eliminate_regs_1 (XEXP (XEXP (x, 1), 1), mem_mode, insn,
+					  true, for_costs);
 
 	  if (new_rtx != XEXP (XEXP (x, 1), 1))
 	    return gen_rtx_fmt_ee (code, GET_MODE (x), XEXP (x, 0),
@@ -3021,8 +3018,7 @@  elimination_effects (rtx x, machine_mode mem_mode)
 	      ep->offset -= size;
 	    else if (code == PRE_MODIFY || code == POST_MODIFY)
 	      {
-		if (GET_CODE (XEXP (x, 1)) == PLUS
-		    && XEXP (x, 0) == XEXP (XEXP (x, 1), 0)
+		if (PLUS_P (XEXP (x, 1)) && XEXP (x, 0) == XEXP (XEXP (x, 1), 0)
 		    && CONST_INT_P (XEXP (XEXP (x, 1), 1)))
 		  ep->offset -= INTVAL (XEXP (XEXP (x, 1), 1));
 		else
@@ -3109,8 +3105,7 @@  elimination_effects (rtx x, machine_mode mem_mode)
 		   this elimination can't be done.  */
 		rtx src = SET_SRC (x);
 
-		if (GET_CODE (src) == PLUS
-		    && XEXP (src, 0) == SET_DEST (x)
+		if (PLUS_P (src) && XEXP (src, 0) == SET_DEST (x)
 		    && CONST_INT_P (XEXP (src, 1)))
 		  ep->offset -= INTVAL (XEXP (src, 1));
 		else
@@ -3229,11 +3224,10 @@  eliminate_regs_in_insn (rtx_insn *insn, int replace)
   plus_src = plus_cst_src = 0;
   if (old_set && REG_P (SET_DEST (old_set)))
     {
-      if (GET_CODE (SET_SRC (old_set)) == PLUS)
+      if (PLUS_P (SET_SRC (old_set)))
 	plus_src = SET_SRC (old_set);
       /* First see if the source is of the form (plus (...) CST).  */
-      if (plus_src
-	  && CONST_INT_P (XEXP (plus_src, 1)))
+      if (plus_src && CONST_INT_P (XEXP (plus_src, 1)))
 	plus_cst_src = plus_src;
       else if (REG_P (SET_SRC (old_set))
 	       || plus_src)
@@ -3245,7 +3239,7 @@  eliminate_regs_in_insn (rtx_insn *insn, int replace)
 	    {
 	      if ((REG_NOTE_KIND (links) == REG_EQUAL
 		   || REG_NOTE_KIND (links) == REG_EQUIV)
-		  && GET_CODE (XEXP (links, 0)) == PLUS
+		  && PLUS_P (XEXP (links, 0))
 		  && CONST_INT_P (XEXP (XEXP (links, 0), 1)))
 		{
 		  plus_cst_src = XEXP (links, 0);
@@ -3435,11 +3429,9 @@  eliminate_regs_in_insn (rtx_insn *insn, int replace)
 	 hurt in this rare case.  */
       /* ??? Why this huge if statement - why don't we just rerecognize the
 	 thing always?  */
-      if (! insn_is_asm
-	  && old_set != 0
+      if (!insn_is_asm && old_set != 0
 	  && ((REG_P (SET_SRC (old_set))
-	       && (GET_CODE (new_body) != SET
-		   || !REG_P (SET_SRC (new_body))))
+	       && (GET_CODE (new_body) != SET || !REG_P (SET_SRC (new_body))))
 	      /* If this was a load from or store to memory, compare
 		 the MEM in recog_data.operand to the one in the insn.
 		 If they are not equal, then rerecognize the insn.  */
@@ -3449,7 +3441,7 @@  eliminate_regs_in_insn (rtx_insn *insn, int replace)
 		      || (MEM_P (SET_DEST (old_set))
 			  && SET_DEST (old_set) != recog_data.operand[0])))
 	      /* If this was an add insn before, rerecognize.  */
-	      || GET_CODE (SET_SRC (old_set)) == PLUS))
+	      || PLUS_P (SET_SRC (old_set))))
 	{
 	  int new_icode = recog (PATTERN (insn), insn, 0);
 	  if (new_icode >= 0)
@@ -3557,11 +3549,10 @@  elimination_costs_in_insn (rtx_insn *insn)
   if (old_set && REG_P (SET_DEST (old_set)))
     {
       sets_reg_p = true;
-      if (GET_CODE (SET_SRC (old_set)) == PLUS)
+      if (PLUS_P (SET_SRC (old_set)))
 	plus_src = SET_SRC (old_set);
       /* First see if the source is of the form (plus (...) CST).  */
-      if (plus_src
-	  && CONST_INT_P (XEXP (plus_src, 1)))
+      if (plus_src && CONST_INT_P (XEXP (plus_src, 1)))
 	plus_cst_src = plus_src;
       else if (REG_P (SET_SRC (old_set))
 	       || plus_src)
@@ -3573,7 +3564,7 @@  elimination_costs_in_insn (rtx_insn *insn)
 	    {
 	      if ((REG_NOTE_KIND (links) == REG_EQUAL
 		   || REG_NOTE_KIND (links) == REG_EQUIV)
-		  && GET_CODE (XEXP (links, 0)) == PLUS
+		  && PLUS_P (XEXP (links, 0))
 		  && CONST_INT_P (XEXP (XEXP (links, 0), 1)))
 		{
 		  plus_cst_src = XEXP (links, 0);
@@ -4077,7 +4068,7 @@  init_eliminable_invariants (rtx_insn *first, bool do_subregs)
 		  machine_mode mode;
 
 		  mode = GET_MODE (SET_DEST (set));
-		  if (GET_CODE (x) == PLUS)
+		  if (PLUS_P (x))
 		    {
 		      /* This is PLUS of frame pointer and a constant,
 			 and might be shared.  Unshare it.  */
@@ -5558,14 +5549,11 @@  gen_reload_chain_without_interm_reg_p (int r1, int r2)
      opposite SUBREG on OUT.  Likewise for a paradoxical SUBREG on OUT.  */
   strip_paradoxical_subreg (&in, &out);
 
-  if (GET_CODE (in) == PLUS
-      && (REG_P (XEXP (in, 0))
-	  || GET_CODE (XEXP (in, 0)) == SUBREG
+  if (PLUS_P (in)
+      && (REG_P (XEXP (in, 0)) || GET_CODE (XEXP (in, 0)) == SUBREG
 	  || MEM_P (XEXP (in, 0)))
-      && (REG_P (XEXP (in, 1))
-	  || GET_CODE (XEXP (in, 1)) == SUBREG
-	  || CONSTANT_P (XEXP (in, 1))
-	  || MEM_P (XEXP (in, 1))))
+      && (REG_P (XEXP (in, 1)) || GET_CODE (XEXP (in, 1)) == SUBREG
+	  || CONSTANT_P (XEXP (in, 1)) || MEM_P (XEXP (in, 1))))
     {
       insn = emit_insn (gen_rtx_SET (out, in));
       code = recog_memoized (insn);
@@ -5963,7 +5951,7 @@  function_invariant_p (const_rtx x)
     return 1;
   if (x == frame_pointer_rtx || x == arg_pointer_rtx)
     return 1;
-  if (GET_CODE (x) == PLUS
+  if (PLUS_P (x)
       && (XEXP (x, 0) == frame_pointer_rtx || XEXP (x, 0) == arg_pointer_rtx)
       && GET_CODE (XEXP (x, 1)) == CONST_INT)
     return 1;
@@ -6605,16 +6593,12 @@  choose_reload_regs (class insn_chain *chain)
 	    }
 
 	  /* Here's another way to see if the value is already lying around.  */
-	  if (inheritance
-	      && rld[r].in != 0
-	      && ! reload_inherited[r]
+	  if (inheritance && rld[r].in != 0 && !reload_inherited[r]
 	      && rld[r].out == 0
-	      && (CONSTANT_P (rld[r].in)
-		  || GET_CODE (rld[r].in) == PLUS
-		  || REG_P (rld[r].in)
-		  || MEM_P (rld[r].in))
+	      && (CONSTANT_P (rld[r].in) || PLUS_P (rld[r].in)
+		  || REG_P (rld[r].in) || MEM_P (rld[r].in))
 	      && (rld[r].nregs == max_group_size
-		  || ! reg_classes_intersect_p (rld[r].rclass, group_class)))
+		  || !reg_classes_intersect_p (rld[r].rclass, group_class)))
 	    search_equiv = rld[r].in;
 
 	  if (search_equiv)
@@ -8453,14 +8437,11 @@  gen_reload (rtx out, rtx in, int opnum, enum reload_type type)
 
      ??? At some point, this whole thing needs to be rethought.  */
 
-  if (GET_CODE (in) == PLUS
-      && (REG_P (XEXP (in, 0))
-	  || GET_CODE (XEXP (in, 0)) == SUBREG
+  if (PLUS_P (in)
+      && (REG_P (XEXP (in, 0)) || GET_CODE (XEXP (in, 0)) == SUBREG
 	  || MEM_P (XEXP (in, 0)))
-      && (REG_P (XEXP (in, 1))
-	  || GET_CODE (XEXP (in, 1)) == SUBREG
-	  || CONSTANT_P (XEXP (in, 1))
-	  || MEM_P (XEXP (in, 1))))
+      && (REG_P (XEXP (in, 1)) || GET_CODE (XEXP (in, 1)) == SUBREG
+	  || CONSTANT_P (XEXP (in, 1)) || MEM_P (XEXP (in, 1))))
     {
       /* We need to compute the sum of a register or a MEM and another
 	 register, constant, or MEM, and put it into the reload
@@ -8991,7 +8972,7 @@  inc_for_reload (rtx reloadreg, rtx in, rtx value, poly_int64 inc_amount)
 
   if (GET_CODE (value) == PRE_MODIFY || GET_CODE (value) == POST_MODIFY)
     {
-      gcc_assert (GET_CODE (XEXP (value, 1)) == PLUS);
+      gcc_assert (PLUS_P (XEXP (value, 1)));
       inc = find_replacement (&XEXP (XEXP (value, 1), 1));
     }
   else
diff --git a/gcc/reorg.cc b/gcc/reorg.cc
index 07b2045986c..9a596e042c7 100644
--- a/gcc/reorg.cc
+++ b/gcc/reorg.cc
@@ -2663,12 +2663,10 @@  fill_slots_from_thread (rtx_jump_insn *insn, rtx condition,
 	return;
 
       dest = SET_DEST (pat), src = SET_SRC (pat);
-      if ((GET_CODE (src) == PLUS || GET_CODE (src) == MINUS)
-	  && rtx_equal_p (XEXP (src, 0), dest)
-	  && (!FLOAT_MODE_P (GET_MODE (src))
-	      || flag_unsafe_math_optimizations)
-	  && ! reg_overlap_mentioned_p (dest, XEXP (src, 1))
-	  && ! side_effects_p (pat))
+      if ((PLUS_P (src) || MINUS_P (src)) && rtx_equal_p (XEXP (src, 0), dest)
+	  && (!FLOAT_MODE_P (GET_MODE (src)) || flag_unsafe_math_optimizations)
+	  && !reg_overlap_mentioned_p (dest, XEXP (src, 1))
+	  && !side_effects_p (pat))
 	{
 	  rtx other = XEXP (src, 1);
 	  rtx new_arith;
@@ -2681,7 +2679,7 @@  fill_slots_from_thread (rtx_jump_insn *insn, rtx condition,
 	    new_arith = gen_rtx_fmt_ee (GET_CODE (src), GET_MODE (src), dest,
 					negate_rtx (GET_MODE (src), other));
 	  else
-	    new_arith = gen_rtx_fmt_ee (GET_CODE (src) == PLUS ? MINUS : PLUS,
+	    new_arith = gen_rtx_fmt_ee (PLUS_P (src) ? MINUS : PLUS,
 					GET_MODE (src), dest, other);
 
 	  ninsn = emit_insn_after (gen_rtx_SET (dest, new_arith), insn);
diff --git a/gcc/rtl.cc b/gcc/rtl.cc
index 86c322b19ca..460b8ed05d5 100644
--- a/gcc/rtl.cc
+++ b/gcc/rtl.cc
@@ -269,12 +269,11 @@  shared_const_p (const_rtx orig)
   /* CONST can be shared if it contains a SYMBOL_REF.  If it contains
      a LABEL_REF, it isn't sharable.  */
   poly_int64 offset;
-  return (GET_CODE (XEXP (orig, 0)) == PLUS
+  return (PLUS_P (XEXP (orig, 0))
 	  && GET_CODE (XEXP (XEXP (orig, 0), 0)) == SYMBOL_REF
 	  && poly_int_rtx_p (XEXP (XEXP (orig, 0), 1), &offset));
 }
 
-
 /* Create a new copy of an rtx.
    Recursively copies the operands of the rtx,
    except for those few rtx codes that are sharable.  */
diff --git a/gcc/rtl.h b/gcc/rtl.h
index 7a8c4709257..bf032eb57a5 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -882,6 +882,17 @@  struct GTY(()) rtvec_def {
 /* Predicate yielding true iff RTX is a symbol ref.  */
 #define SYMBOL_REF_P(RTX) (GET_CODE (RTX) == SYMBOL_REF)
 
+/* RTL predicates for value binary operators.  */
+/* Predicate yielding nonzero iff RTX is an addition operation.  */
+#define PLUS_P(RTX) (GET_CODE (RTX) == PLUS)
+
+/* Predicate yielding nonzero iff RTX is a subtraction operation.  */
+#define MINUS_P(RTX) (GET_CODE(RTX) == MINUS)
+
+/* Predicate yielding nonzero iff RTX is a multiplication operation.  */
+#define MULT_P(RTX) (GET_CODE(RTX) == MULT)
+
+
 template <>
 template <>
 inline bool
diff --git a/gcc/rtlanal.cc b/gcc/rtlanal.cc
index 56da7435a28..5266fbbdd9d 100644
--- a/gcc/rtlanal.cc
+++ b/gcc/rtlanal.cc
@@ -859,11 +859,9 @@  get_integer_term (const_rtx x)
   if (GET_CODE (x) == CONST)
     x = XEXP (x, 0);
 
-  if (GET_CODE (x) == MINUS
-      && CONST_INT_P (XEXP (x, 1)))
-    return - INTVAL (XEXP (x, 1));
-  if (GET_CODE (x) == PLUS
-      && CONST_INT_P (XEXP (x, 1)))
+  if (MINUS_P (x) && CONST_INT_P (XEXP (x, 1)))
+    return -INTVAL (XEXP (x, 1));
+  if (PLUS_P (x) && CONST_INT_P (XEXP (x, 1)))
     return INTVAL (XEXP (x, 1));
   return 0;
 }
@@ -878,11 +876,9 @@  get_related_value (const_rtx x)
   if (GET_CODE (x) != CONST)
     return 0;
   x = XEXP (x, 0);
-  if (GET_CODE (x) == PLUS
-      && CONST_INT_P (XEXP (x, 1)))
+  if (PLUS_P (x) && CONST_INT_P (XEXP (x, 1)))
     return XEXP (x, 0);
-  else if (GET_CODE (x) == MINUS
-	   && CONST_INT_P (XEXP (x, 1)))
+  else if (MINUS_P (x) && CONST_INT_P (XEXP (x, 1)))
     return XEXP (x, 0);
   return 0;
 }
@@ -931,7 +927,7 @@  split_const (rtx x, rtx *base_out, rtx *offset_out)
   if (GET_CODE (x) == CONST)
     {
       x = XEXP (x, 0);
-      if (GET_CODE (x) == PLUS && CONST_INT_P (XEXP (x, 1)))
+      if (PLUS_P (x) && CONST_INT_P (XEXP (x, 1)))
 	{
 	  *base_out = XEXP (x, 0);
 	  *offset_out = XEXP (x, 1);
@@ -953,7 +949,7 @@  strip_offset (rtx x, poly_int64_pod *offset_out)
   rtx test = x;
   if (GET_CODE (test) == CONST)
     test = XEXP (test, 0);
-  if (GET_CODE (test) == PLUS)
+  if (PLUS_P (test))
     {
       base = XEXP (test, 0);
       test = XEXP (test, 1);
@@ -6597,7 +6593,7 @@  decompose_automod_address (struct address_info *info)
   gcc_checking_assert (info->base == info->base_term);
 
   rtx plus = XEXP (*info->inner, 1);
-  gcc_assert (GET_CODE (plus) == PLUS);
+  gcc_assert (PLUS_P (plus));
 
   info->base_term2 = &XEXP (plus, 0);
   gcc_checking_assert (rtx_equal_p (*info->base_term, *info->base_term2));
@@ -6617,7 +6613,7 @@  static rtx **
 extract_plus_operands (rtx *loc, rtx **ptr, rtx **end)
 {
   rtx x = *loc;
-  if (GET_CODE (x) == PLUS)
+  if (PLUS_P (x))
     {
       ptr = extract_plus_operands (&XEXP (x, 0), ptr, end);
       ptr = extract_plus_operands (&XEXP (x, 1), ptr, end);
@@ -6808,8 +6804,7 @@  HOST_WIDE_INT
 get_index_scale (const struct address_info *info)
 {
   rtx index = *info->index;
-  if (GET_CODE (index) == MULT
-      && CONST_INT_P (XEXP (index, 1))
+  if (MULT_P (index) && CONST_INT_P (XEXP (index, 1))
       && info->index_term == &XEXP (index, 0))
     return INTVAL (XEXP (index, 1));
 
diff --git a/gcc/sched-deps.cc b/gcc/sched-deps.cc
index 948aa0c3b60..3dd05cc7b6a 100644
--- a/gcc/sched-deps.cc
+++ b/gcc/sched-deps.cc
@@ -3439,9 +3439,7 @@  sched_analyze_insn (class deps_desc *deps, rtx x, rtx_insn *insn)
       tmp = SET_SRC (set);
       if (GET_CODE (tmp) == SUBREG)
 	tmp = SUBREG_REG (tmp);
-      if ((GET_CODE (tmp) == PLUS
-	   || GET_CODE (tmp) == MINUS)
-	  && REG_P (XEXP (tmp, 0))
+      if ((PLUS_P (tmp) || MINUS_P (tmp)) && REG_P (XEXP (tmp, 0))
 	  && REGNO (XEXP (tmp, 0)) == STACK_POINTER_REGNUM
 	  && dest_regno == STACK_POINTER_REGNUM)
 	src_regno = STACK_POINTER_REGNUM;
@@ -4867,12 +4865,12 @@  find_mem (struct mem_inc_info *mii, rtx *address_of_x)
       mii->mem_loc = address_of_x;
       mii->mem_index = NULL_RTX;
       mii->mem_constant = 0;
-      if (GET_CODE (reg0) == PLUS && CONST_INT_P (XEXP (reg0, 1)))
+      if (PLUS_P (reg0) && CONST_INT_P (XEXP (reg0, 1)))
 	{
 	  mii->mem_constant = INTVAL (XEXP (reg0, 1));
 	  reg0 = XEXP (reg0, 0);
 	}
-      if (GET_CODE (reg0) == PLUS)
+      if (PLUS_P (reg0))
 	{
 	  mii->mem_index = XEXP (reg0, 1);
 	  reg0 = XEXP (reg0, 0);
diff --git a/gcc/simplify-rtx.cc b/gcc/simplify-rtx.cc
index fc0d6c3ca2a..dc7383a38e3 100644
--- a/gcc/simplify-rtx.cc
+++ b/gcc/simplify-rtx.cc
@@ -643,11 +643,8 @@  simplify_context::simplify_truncation (machine_mode mode, rtx op,
   /* If the machine can perform operations in the truncated mode, distribute
      the truncation, i.e. simplify (truncate:QI (op:SI (x:SI) (y:SI))) into
      (op:QI (truncate:QI (x:SI)) (truncate:QI (y:SI))).  */
-  if (1
-      && (!WORD_REGISTER_OPERATIONS || precision >= BITS_PER_WORD)
-      && (GET_CODE (op) == PLUS
-	  || GET_CODE (op) == MINUS
-	  || GET_CODE (op) == MULT))
+  if (1 && (!WORD_REGISTER_OPERATIONS || precision >= BITS_PER_WORD)
+      && (PLUS_P (op) || MINUS_P (op) || MULT_P (op)))
     {
       rtx op0 = simplify_gen_unary (TRUNCATE, mode, XEXP (op, 0), op_mode);
       if (op0)
@@ -947,8 +944,7 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
 					XEXP (op, 0), XEXP (op, 1));
 
       /* (not (plus X -1)) can become (neg X).  */
-      if (GET_CODE (op) == PLUS
-	  && XEXP (op, 1) == constm1_rtx)
+      if (PLUS_P (op) && XEXP (op, 1) == constm1_rtx)
 	return simplify_gen_unary (NEG, mode, XEXP (op, 0), mode);
 
       /* Similarly, (not (neg X)) is (plus X -1).  Only do this for
@@ -966,14 +962,12 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
 	return simplify_gen_binary (XOR, mode, XEXP (op, 0), temp);
 
       /* (not (plus X C)) for signbit C is (xor X D) with D = ~C.  */
-      if (GET_CODE (op) == PLUS
-	  && CONST_INT_P (XEXP (op, 1))
+      if (PLUS_P (op) && CONST_INT_P (XEXP (op, 1))
 	  && mode_signbit_p (mode, XEXP (op, 1))
-	  && (temp = simplify_unary_operation (NOT, mode,
-					       XEXP (op, 1), mode)) != 0)
+	  && (temp = simplify_unary_operation (NOT, mode, XEXP (op, 1), mode))
+	       != 0)
 	return simplify_gen_binary (XOR, mode, XEXP (op, 0), temp);
 
-
       /* (not (ashift 1 X)) is (rotate ~1 X).  We used to do this for
 	 operands other than 1, but that is not valid.  We could do a
 	 similar simplification for (not (lshiftrt C X)) where C is
@@ -1079,8 +1073,7 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
 	}
 
       /* (neg (plus X 1)) can become (not X).  */
-      if (GET_CODE (op) == PLUS
-	  && XEXP (op, 1) == const1_rtx)
+      if (PLUS_P (op) && XEXP (op, 1) == const1_rtx)
 	return simplify_gen_unary (NOT, mode, XEXP (op, 0), mode);
 
       /* Similarly, (neg (not X)) is (plus X 1).  */
@@ -1093,13 +1086,11 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
 	 both +0, (minus Y X) is the same as (minus X Y).  If the
 	 rounding mode is towards +infinity (or -infinity) then the two
 	 expressions will be rounded differently.  */
-      if (GET_CODE (op) == MINUS
-	  && !HONOR_SIGNED_ZEROS (mode)
+      if (MINUS_P (op) && !HONOR_SIGNED_ZEROS (mode)
 	  && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
 	return simplify_gen_binary (MINUS, mode, XEXP (op, 1), XEXP (op, 0));
 
-      if (GET_CODE (op) == PLUS
-	  && !HONOR_SIGNED_ZEROS (mode)
+      if (PLUS_P (op) && !HONOR_SIGNED_ZEROS (mode)
 	  && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
 	{
 	  /* (neg (plus A C)) is simplified to (minus -C A).  */
@@ -1118,8 +1109,7 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
 
       /* (neg (mult A B)) becomes (mult A (neg B)).
 	 This works even for floating-point values.  */
-      if (GET_CODE (op) == MULT
-	  && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
+      if (MULT_P (op) && !HONOR_SIGN_DEPENDENT_ROUNDING (mode))
 	{
 	  temp = simplify_gen_unary (NEG, mode, XEXP (op, 1), mode);
 	  return simplify_gen_binary (MULT, mode, XEXP (op, 0), temp);
@@ -1209,8 +1199,7 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
     case TRUNCATE:
       /* Don't optimize (lshiftrt (mult ...)) as it would interfere
 	 with the umulXi3_highpart patterns.  */
-      if (GET_CODE (op) == LSHIFTRT
-	  && GET_CODE (XEXP (op, 0)) == MULT)
+      if (GET_CODE (op) == LSHIFTRT && MULT_P (XEXP (op, 0)))
 	break;
 
       if (GET_MODE_CLASS (mode) == MODE_PARTIAL_INT)
@@ -1482,16 +1471,15 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
 	 becomes just the MINUS if its mode is MODE.  This allows
 	 folding switch statements on machines using casesi (such as
 	 the VAX).  */
-      if (GET_CODE (op) == TRUNCATE
-	  && GET_MODE (XEXP (op, 0)) == mode
-	  && GET_CODE (XEXP (op, 0)) == MINUS
+      if (GET_CODE (op) == TRUNCATE && GET_MODE (XEXP (op, 0)) == mode
+	  && MINUS_P (XEXP (op, 0))
 	  && GET_CODE (XEXP (XEXP (op, 0), 0)) == LABEL_REF
 	  && GET_CODE (XEXP (XEXP (op, 0), 1)) == LABEL_REF)
 	return XEXP (op, 0);
 
       /* Extending a widening multiplication should be canonicalized to
 	 a wider widening multiplication.  */
-      if (GET_CODE (op) == MULT)
+      if (MULT_P (op))
 	{
 	  rtx lhs = XEXP (op, 0);
 	  rtx rhs = XEXP (op, 1);
@@ -1717,7 +1705,7 @@  simplify_context::simplify_unary_operation_1 (rtx_code code, machine_mode mode,
 
       /* Extending a widening multiplication should be canonicalized to
 	 a wider widening multiplication.  */
-      if (GET_CODE (op) == MULT)
+      if (MULT_P (op))
 	{
 	  rtx lhs = XEXP (op, 0);
 	  rtx rhs = XEXP (op, 1);
@@ -2803,8 +2791,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	      coeff0 = wi::minus_one (GET_MODE_PRECISION (int_mode));
 	      lhs = XEXP (lhs, 0);
 	    }
-	  else if (GET_CODE (lhs) == MULT
-		   && CONST_SCALAR_INT_P (XEXP (lhs, 1)))
+	  else if (MULT_P (lhs) && CONST_SCALAR_INT_P (XEXP (lhs, 1)))
 	    {
 	      coeff0 = rtx_mode_t (XEXP (lhs, 1), int_mode);
 	      lhs = XEXP (lhs, 0);
@@ -2824,8 +2811,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	      coeff1 = wi::minus_one (GET_MODE_PRECISION (int_mode));
 	      rhs = XEXP (rhs, 0);
 	    }
-	  else if (GET_CODE (rhs) == MULT
-		   && CONST_INT_P (XEXP (rhs, 1)))
+	  else if (MULT_P (rhs) && CONST_INT_P (XEXP (rhs, 1)))
 	    {
 	      coeff1 = rtx_mode_t (XEXP (rhs, 1), int_mode);
 	      rhs = XEXP (rhs, 0);
@@ -2856,32 +2842,32 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	  /* Optimize (X - 1) * Y + Y to X * Y.  */
 	  lhs = op0;
 	  rhs = op1;
-	  if (GET_CODE (op0) == MULT)
+	  if (MULT_P (op0))
 	    {
-	      if (((GET_CODE (XEXP (op0, 0)) == PLUS
+	      if (((PLUS_P (XEXP (op0, 0))
 		    && XEXP (XEXP (op0, 0), 1) == constm1_rtx)
-		   || (GET_CODE (XEXP (op0, 0)) == MINUS
+		   || (MINUS_P (XEXP (op0, 0))
 		       && XEXP (XEXP (op0, 0), 1) == const1_rtx))
 		  && rtx_equal_p (XEXP (op0, 1), op1))
 		lhs = XEXP (XEXP (op0, 0), 0);
-	      else if (((GET_CODE (XEXP (op0, 1)) == PLUS
+	      else if (((PLUS_P (XEXP (op0, 1))
 			 && XEXP (XEXP (op0, 1), 1) == constm1_rtx)
-			|| (GET_CODE (XEXP (op0, 1)) == MINUS
+			|| (MINUS_P (XEXP (op0, 1))
 			    && XEXP (XEXP (op0, 1), 1) == const1_rtx))
 		       && rtx_equal_p (XEXP (op0, 0), op1))
 		lhs = XEXP (XEXP (op0, 1), 0);
 	    }
-	  else if (GET_CODE (op1) == MULT)
+	  else if (MULT_P (op1))
 	    {
-	      if (((GET_CODE (XEXP (op1, 0)) == PLUS
+	      if (((PLUS_P (XEXP (op1, 0))
 		    && XEXP (XEXP (op1, 0), 1) == constm1_rtx)
-		   || (GET_CODE (XEXP (op1, 0)) == MINUS
+		   || (MINUS_P (XEXP (op1, 0))
 		       && XEXP (XEXP (op1, 0), 1) == const1_rtx))
 		  && rtx_equal_p (XEXP (op1, 1), op0))
 		rhs = XEXP (XEXP (op1, 0), 0);
-	      else if (((GET_CODE (XEXP (op1, 1)) == PLUS
+	      else if (((PLUS_P (XEXP (op1, 1))
 			 && XEXP (XEXP (op1, 1), 1) == constm1_rtx)
-			|| (GET_CODE (XEXP (op1, 1)) == MINUS
+			|| (MINUS_P (XEXP (op1, 1))
 			    && XEXP (XEXP (op1, 1), 1) == const1_rtx))
 		       && rtx_equal_p (XEXP (op1, 0), op0))
 		rhs = XEXP (XEXP (op1, 1), 0);
@@ -2900,8 +2886,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 							 XEXP (op0, 1)));
 
       /* Canonicalize (plus (mult (neg B) C) A) to (minus A (mult B C)).  */
-      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode)
-	  && GET_CODE (op0) == MULT
+      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode) && MULT_P (op0)
 	  && GET_CODE (XEXP (op0, 0)) == NEG)
 	{
 	  rtx in1, in2;
@@ -3022,8 +3007,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	      coeff0 = wi::minus_one (GET_MODE_PRECISION (int_mode));
 	      lhs = XEXP (lhs, 0);
 	    }
-	  else if (GET_CODE (lhs) == MULT
-		   && CONST_SCALAR_INT_P (XEXP (lhs, 1)))
+	  else if (MULT_P (lhs) && CONST_SCALAR_INT_P (XEXP (lhs, 1)))
 	    {
 	      coeff0 = rtx_mode_t (XEXP (lhs, 1), int_mode);
 	      lhs = XEXP (lhs, 0);
@@ -3043,8 +3027,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	      negcoeff1 = wi::one (GET_MODE_PRECISION (int_mode));
 	      rhs = XEXP (rhs, 0);
 	    }
-	  else if (GET_CODE (rhs) == MULT
-		   && CONST_INT_P (XEXP (rhs, 1)))
+	  else if (MULT_P (rhs) && CONST_INT_P (XEXP (rhs, 1)))
 	    {
 	      negcoeff1 = wi::neg (rtx_mode_t (XEXP (rhs, 1), int_mode));
 	      rhs = XEXP (rhs, 0);
@@ -3075,17 +3058,17 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 
 	  /* Optimize (X + 1) * Y - Y to X * Y.  */
 	  lhs = op0;
-	  if (GET_CODE (op0) == MULT)
+	  if (MULT_P (op0))
 	    {
-	      if (((GET_CODE (XEXP (op0, 0)) == PLUS
+	      if (((PLUS_P (XEXP (op0, 0))
 		    && XEXP (XEXP (op0, 0), 1) == const1_rtx)
-		   || (GET_CODE (XEXP (op0, 0)) == MINUS
+		   || (MINUS_P (XEXP (op0, 0))
 		       && XEXP (XEXP (op0, 0), 1) == constm1_rtx))
 		  && rtx_equal_p (XEXP (op0, 1), op1))
 		lhs = XEXP (XEXP (op0, 0), 0);
-	      else if (((GET_CODE (XEXP (op0, 1)) == PLUS
+	      else if (((PLUS_P (XEXP (op0, 1))
 			 && XEXP (XEXP (op0, 1), 1) == const1_rtx)
-			|| (GET_CODE (XEXP (op0, 1)) == MINUS
+			|| (MINUS_P (XEXP (op0, 1))
 			    && XEXP (XEXP (op0, 1), 1) == constm1_rtx))
 		       && rtx_equal_p (XEXP (op0, 0), op1))
 		lhs = XEXP (XEXP (op0, 1), 0);
@@ -3145,8 +3128,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	return reversed;
 
       /* Canonicalize (minus A (mult (neg B) C)) to (plus (mult B C) A).  */
-      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode)
-	  && GET_CODE (op1) == MULT
+      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode) && MULT_P (op1)
 	  && GET_CODE (XEXP (op1, 0)) == NEG)
 	{
 	  rtx in1, in2;
@@ -3161,8 +3143,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 
       /* Canonicalize (minus (neg A) (mult B C)) to
 	 (minus (mult (neg B) C) A).  */
-      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode)
-	  && GET_CODE (op1) == MULT
+      if (!HONOR_SIGN_DEPENDENT_ROUNDING (mode) && MULT_P (op1)
 	  && GET_CODE (op0) == NEG)
 	{
 	  rtx in1, in2;
@@ -3208,9 +3189,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	     just moved the NEG to the second operand, simplify_gen_binary
 	     below could through simplify_associative_operation move
 	     the NEG around again and recurse endlessly.  */
-	  if (temp
-	      && GET_CODE (op1) == MULT
-	      && GET_CODE (temp) == MULT
+	  if (temp && MULT_P (op1) && MULT_P (temp)
 	      && XEXP (op1, 0) == XEXP (temp, 0)
 	      && GET_CODE (XEXP (temp, 1)) == NEG
 	      && XEXP (op1, 1) == XEXP (XEXP (temp, 1), 0))
@@ -3225,9 +3204,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	     just moved the NEG to the second operand, simplify_gen_binary
 	     below could through simplify_associative_operation move
 	     the NEG around again and recurse endlessly.  */
-	  if (temp
-	      && GET_CODE (op0) == MULT
-	      && GET_CODE (temp) == MULT
+	  if (temp && MULT_P (op0) && MULT_P (temp)
 	      && XEXP (op0, 0) == XEXP (temp, 0)
 	      && GET_CODE (XEXP (temp, 1)) == NEG
 	      && XEXP (op0, 1) == XEXP (XEXP (temp, 1), 0))
@@ -3405,11 +3382,10 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	 the IOR as a PLUS and we can associate.  This is valid if OP1
          can be safely shifted left C bits.  */
       if (CONST_INT_P (trueop1) && GET_CODE (op0) == ASHIFTRT
-          && GET_CODE (XEXP (op0, 0)) == PLUS
-          && CONST_INT_P (XEXP (XEXP (op0, 0), 1))
-          && CONST_INT_P (XEXP (op0, 1))
-          && INTVAL (XEXP (op0, 1)) < HOST_BITS_PER_WIDE_INT)
-        {
+	  && PLUS_P (XEXP (op0, 0)) && CONST_INT_P (XEXP (XEXP (op0, 0), 1))
+	  && CONST_INT_P (XEXP (op0, 1))
+	  && INTVAL (XEXP (op0, 1)) < HOST_BITS_PER_WIDE_INT)
+	{
 	  int count = INTVAL (XEXP (op0, 1));
 	  HOST_WIDE_INT mask = UINTVAL (trueop1) << count;
 
@@ -3420,7 +3396,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 					plus_constant (mode, XEXP (op0, 0),
 						       mask),
 					XEXP (op0, 1));
-        }
+	}
 
       /* The following happens with bitfield merging.
          (X & C) | ((X | Y) & ~C) -> X | (Y & ~C) */
@@ -3497,8 +3473,7 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	  && mode_signbit_p (mode, op1))
 	return simplify_gen_binary (PLUS, mode, op0, op1);
       /* (xor (plus X C1) C2) is (xor X (C1^C2)) if C1 is signbit.  */
-      if (CONST_SCALAR_INT_P (op1)
-	  && GET_CODE (op0) == PLUS
+      if (CONST_SCALAR_INT_P (op1) && PLUS_P (op0)
 	  && CONST_SCALAR_INT_P (XEXP (op0, 1))
 	  && mode_signbit_p (mode, XEXP (op0, 1)))
 	return simplify_gen_binary (XOR, mode, XEXP (op0, 0),
@@ -3849,11 +3824,10 @@  simplify_context::simplify_binary_operation_1 (rtx_code code,
 	 and for - instead of + and/or ^ instead of |.
          Also, if (N & M) == 0, then
 	 (A +- N) & M -> A & M.  */
-      if (CONST_INT_P (trueop1)
-	  && HWI_COMPUTABLE_MODE_P (mode)
+      if (CONST_INT_P (trueop1) && HWI_COMPUTABLE_MODE_P (mode)
 	  && ~UINTVAL (trueop1)
 	  && (UINTVAL (trueop1) & (UINTVAL (trueop1) + 1)) == 0
-	  && (GET_CODE (op0) == PLUS || GET_CODE (op0) == MINUS))
+	  && (PLUS_P (op0) || MINUS_P (op0)))
 	{
 	  rtx pmop[2];
 	  int which;
@@ -5413,8 +5387,7 @@  simplify_context::simplify_plus_minus (rtx_code code, machine_mode mode,
 	      break;
 
 	    case CONST:
-	      if (n_ops != ARRAY_SIZE (ops)
-		  && GET_CODE (XEXP (this_op, 0)) == PLUS
+	      if (n_ops != ARRAY_SIZE (ops) && PLUS_P (XEXP (this_op, 0))
 		  && CONSTANT_P (XEXP (XEXP (this_op, 0), 0))
 		  && CONSTANT_P (XEXP (XEXP (this_op, 0), 1)))
 		{
@@ -5672,10 +5645,8 @@  simplify_context::simplify_plus_minus (rtx_code code, machine_mode mode,
 static bool
 plus_minus_operand_p (const_rtx x)
 {
-  return GET_CODE (x) == PLUS
-         || GET_CODE (x) == MINUS
-	 || (GET_CODE (x) == CONST
-	     && GET_CODE (XEXP (x, 0)) == PLUS
+  return PLUS_P (x) || MINUS_P (x)
+	 || (GET_CODE (x) == CONST && PLUS_P (XEXP (x, 0))
 	     && CONSTANT_P (XEXP (XEXP (x, 0), 0))
 	     && CONSTANT_P (XEXP (XEXP (x, 0), 1)));
 }
@@ -5761,11 +5732,9 @@  simplify_context::simplify_relational_operation_1 (rtx_code code,
 
   /* (LTU/GEU (PLUS a C) C), where C is constant, can be simplified to
      (GEU/LTU a -C).  Likewise for (LTU/GEU (PLUS a C) a).  */
-  if ((code == LTU || code == GEU)
-      && GET_CODE (op0) == PLUS
+  if ((code == LTU || code == GEU) && PLUS_P (op0)
       && CONST_INT_P (XEXP (op0, 1))
-      && (rtx_equal_p (op1, XEXP (op0, 0))
-	  || rtx_equal_p (op1, XEXP (op0, 1)))
+      && (rtx_equal_p (op1, XEXP (op0, 0)) || rtx_equal_p (op1, XEXP (op0, 1)))
       /* (LTU/GEU (PLUS a 0) 0) is not the same as (GEU/LTU a 0). */
       && XEXP (op0, 1) != const0_rtx)
     {
@@ -5777,20 +5746,18 @@  simplify_context::simplify_relational_operation_1 (rtx_code code,
 
   /* (GTU (PLUS a C) (C - 1)) where C is a non-zero constant can be
      transformed into (LTU a -C).  */
-  if (code == GTU && GET_CODE (op0) == PLUS && CONST_INT_P (op1)
+  if (code == GTU && PLUS_P (op0) && CONST_INT_P (op1)
       && CONST_INT_P (XEXP (op0, 1))
       && (UINTVAL (op1) == UINTVAL (XEXP (op0, 1)) - 1)
       && XEXP (op0, 1) != const0_rtx)
     {
-      rtx new_cmp
-	= simplify_gen_unary (NEG, cmp_mode, XEXP (op0, 1), cmp_mode);
+      rtx new_cmp = simplify_gen_unary (NEG, cmp_mode, XEXP (op0, 1), cmp_mode);
       return simplify_gen_relational (LTU, mode, cmp_mode,
 				       XEXP (op0, 0), new_cmp);
     }
 
   /* Canonicalize (LTU/GEU (PLUS a b) b) as (LTU/GEU (PLUS a b) a).  */
-  if ((code == LTU || code == GEU)
-      && GET_CODE (op0) == PLUS
+  if ((code == LTU || code == GEU) && PLUS_P (op0)
       && rtx_equal_p (op1, XEXP (op0, 1))
       /* Don't recurse "infinitely" for (LTU/GEU (PLUS b b) b).  */
       && !rtx_equal_p (op1, XEXP (op0, 0)))
diff --git a/gcc/var-tracking.cc b/gcc/var-tracking.cc
index 9c40ec4fb8b..37bd7f2e017 100644
--- a/gcc/var-tracking.cc
+++ b/gcc/var-tracking.cc
@@ -739,10 +739,9 @@  stack_adjust_offset_pre_post_cb (rtx, rtx op, rtx dest, rtx src, rtx srcoff,
     case PRE_MODIFY:
     case POST_MODIFY:
       /* We handle only adjustments by constant amount.  */
-      gcc_assert (GET_CODE (src) == PLUS
-		  && CONST_INT_P (XEXP (src, 1))
+      gcc_assert (PLUS_P (src) && CONST_INT_P (XEXP (src, 1))
 		  && XEXP (src, 0) == stack_pointer_rtx);
-      ((HOST_WIDE_INT *)arg)[GET_CODE (op) == POST_MODIFY]
+      ((HOST_WIDE_INT *) arg)[GET_CODE (op) == POST_MODIFY]
 	-= INTVAL (XEXP (src, 1));
       return 0;
     default:
@@ -1149,15 +1148,13 @@  adjust_mems (rtx loc, const_rtx old_rtx, void *data)
       if (tem == NULL_RTX)
 	tem = gen_rtx_raw_SUBREG (GET_MODE (loc), addr, SUBREG_BYTE (loc));
     finish_subreg:
-      if (MAY_HAVE_DEBUG_BIND_INSNS
-	  && GET_CODE (tem) == SUBREG
-	  && (GET_CODE (SUBREG_REG (tem)) == PLUS
-	      || GET_CODE (SUBREG_REG (tem)) == MINUS
-	      || GET_CODE (SUBREG_REG (tem)) == MULT
+      if (MAY_HAVE_DEBUG_BIND_INSNS && GET_CODE (tem) == SUBREG
+	  && (PLUS_P (SUBREG_REG (tem)) || MINUS_P (SUBREG_REG (tem))
+	      || MULT_P (SUBREG_REG (tem))
 	      || GET_CODE (SUBREG_REG (tem)) == ASHIFT)
-	  && is_a <scalar_int_mode> (GET_MODE (tem), &tem_mode)
-	  && is_a <scalar_int_mode> (GET_MODE (SUBREG_REG (tem)),
-				     &tem_subreg_mode)
+	  && is_a<scalar_int_mode> (GET_MODE (tem), &tem_mode)
+	  && is_a<scalar_int_mode> (GET_MODE (SUBREG_REG (tem)),
+				    &tem_subreg_mode)
 	  && (GET_MODE_PRECISION (tem_mode)
 	      < GET_MODE_PRECISION (tem_subreg_mode))
 	  && subreg_lowpart_p (tem)
@@ -2049,8 +2046,7 @@  negative_power_of_two_p (HOST_WIDE_INT i)
 static rtx
 vt_get_canonicalize_base (rtx loc)
 {
-  while ((GET_CODE (loc) == PLUS
-	  || GET_CODE (loc) == AND)
+  while ((PLUS_P (loc) || GET_CODE (loc) == AND)
 	 && GET_CODE (XEXP (loc, 1)) == CONST_INT
 	 && (GET_CODE (loc) != AND
 	     || negative_power_of_two_p (INTVAL (XEXP (loc, 1)))))
@@ -2192,8 +2188,7 @@  vt_canonicalize_addr (dataflow_set *set, rtx oloc)
 
   while (retry)
     {
-      while (GET_CODE (loc) == PLUS
-	     && poly_int_rtx_p (XEXP (loc, 1), &term))
+      while (PLUS_P (loc) && poly_int_rtx_p (XEXP (loc, 1), &term))
 	{
 	  ofst += term;
 	  loc = XEXP (loc, 0);
@@ -2220,8 +2215,7 @@  vt_canonicalize_addr (dataflow_set *set, rtx oloc)
 	    loc = get_addr_from_global_cache (loc);
 
 	  /* Consolidate plus_constants.  */
-	  while (maybe_ne (ofst, 0)
-		 && GET_CODE (loc) == PLUS
+	  while (maybe_ne (ofst, 0) && PLUS_P (loc)
 		 && poly_int_rtx_p (XEXP (loc, 1), &term))
 	    {
 	      ofst += term;
@@ -8841,8 +8835,7 @@  emit_note_insn_var_location (variable **varp, emit_note_data *data)
 		    REG_ATTRS (new_loc) = REG_ATTRS (loc[n_var_parts]);
 		}
 	    }
-	  else if (MEM_P (loc[n_var_parts])
-		   && GET_CODE (XEXP (loc2, 0)) == PLUS
+	  else if (MEM_P (loc[n_var_parts]) && PLUS_P (XEXP (loc2, 0))
 		   && REG_P (XEXP (XEXP (loc2, 0), 0))
 		   && poly_int_rtx_p (XEXP (XEXP (loc2, 0), 1), &offset2))
 	    {
@@ -10153,7 +10146,7 @@  vt_initialize (void)
       elim = eliminate_regs (reg, VOIDmode, NULL_RTX);
       if (elim != reg)
 	{
-	  if (GET_CODE (elim) == PLUS)
+	  if (PLUS_P (elim))
 	    elim = XEXP (elim, 0);
 	  if (elim == stack_pointer_rtx)
 	    vt_init_cfa_base ();
@@ -10173,7 +10166,7 @@  vt_initialize (void)
       elim = eliminate_regs (reg, VOIDmode, NULL_RTX);
       if (elim != reg)
 	{
-	  if (GET_CODE (elim) == PLUS)
+	  if (PLUS_P (elim))
 	    {
 	      fp_cfa_offset -= rtx_to_poly_int64 (XEXP (elim, 1));
 	      elim = XEXP (elim, 0);
@@ -10205,7 +10198,7 @@  vt_initialize (void)
       elim = eliminate_regs (reg, VOIDmode, NULL_RTX);
       if (elim != reg)
 	{
-	  if (GET_CODE (elim) == PLUS)
+	  if (PLUS_P (elim))
 	    elim = XEXP (elim, 0);
 	  if (elim == hard_frame_pointer_rtx)
 	    vt_init_cfa_base ();