diff mbox series

dumpfile.c: use prefixes other that 'note: ' for MSG_{OPTIMIZED_LOCATIONS|MISSED_OPTIMIZATION}

Message ID 1537905614-44303-1-git-send-email-dmalcolm@redhat.com
State New
Headers show
Series dumpfile.c: use prefixes other that 'note: ' for MSG_{OPTIMIZED_LOCATIONS|MISSED_OPTIMIZATION} | expand

Commit Message

David Malcolm Sept. 25, 2018, 8 p.m. UTC
As noted at Cauldron, dumpfile.c currently emits "note: " for all kinds
of dump message, so that (after filtering) there's no distinction between
MSG_OPTIMIZED_LOCATIONS vs MSG_NOTE vs MSG_MISSED_OPTIMIZATION in the
textual output.

This patch changes dumpfile.c so that the "note: " varies to show
which MSG_* was used, with the string prefix matching that used for
filtering in -fopt-info, hence e.g.
  directive_unroll_3.f90:24:0: optimized: loop unrolled 7 times
and:
  pr19210-1.c:24:3: missed: missed loop optimization: niters analysis ends up with assumptions.

The patch adds "dg-optimized" and "dg-missed" directives for use
in the testsuite for matching these (with -fopt-info on stderr; they
don't help for dumpfile output).

The patch also converts the various problem-reporting dump messages
in coverage.c:get_coverage_counts to use MSG_MISSED_OPTIMIZATION
rather than MSG_OPTIMIZED_LOCATIONS, as the docs call out "optimized"
as
  "information when an optimization is successfully applied",
whereas "missed" is for
  "information about missed optimizations",
and problems with profile data seem to me to fall much more into the
latter category than the former.  Doing so requires converting a few
tests from using "-fopt-info" (which is implicitly
"-fopt-info-optimized-optall") to getting the "missed" optimizations.
Changing them to "-fopt-info-missed" added lots of noise from the
vectorizer, so I changed these tests to use "-fopt-info-missed-ipa".

Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.

OK for trunk?

gcc/ChangeLog:
	* coverage.c (get_coverage_counts): Convert problem-reporting dump
	messages from MSG_OPTIMIZED_LOCATIONS to MSG_MISSED_OPTIMIZATION.
	* dumpfile.c (kind_as_string): New function.
	(dump_loc): Rather than a hardcoded prefix of "note: ", use
	kind_as_string to vary the prefix based on dump_kind.
	(selftest::test_capture_of_dump_calls): Update for above.

gcc/testsuite/ChangeLog:
	* c-c++-common/unroll-1.c: Update expected output from "note" to
	"optimized".
	* c-c++-common/unroll-2.c: Likewise.
	* c-c++-common/unroll-3.c: Likewise.
	* g++.dg/tree-ssa/dom-invalid.C: Update expected output from
	dg-message to dg-missed.  Convert param from -fopt-info to
	-fopt-info-missed-ipa.
	* g++.dg/tree-ssa/pr81408.C: Update expected output from
	dg-message to dg-missed.
	* g++.dg/vect/slp-pr56812.cc: Update expected output from
	dg-message to dg-optimized.
	* gcc.dg/pr26570.c: Update expected output from dg-message to
	dg-missed.  Convert param from -fopt-info to
	-fopt-info-missed-ipa.
	* gcc.dg/pr32773.c: Likewise.
	* gcc.dg/tree-ssa/pr19210-1.c: Update expected output from
	dg-message to dg-missed.
	* gcc.dg/unroll-2.c: Update expected output from dg-message to
	dg-optimized.
	* gcc.dg/vect/nodump-vect-opt-info-1.c: Likewise.  Convert param
	from -fopt-info to -fopt-info-vec.
	* gfortran.dg/directive_unroll_1.f90: Update expected output from
	"note" to "optimized".
	* gfortran.dg/directive_unroll_2.f90: Likewise.
	* gfortran.dg/directive_unroll_3.f90: Likewise.
	* gnat.dg/unroll4.adb: Likewise.
	* lib/gcc-dg.exp (dg-optimized): New procedure.
	(dg-missed): New procedure.
---
 gcc/coverage.c                                     | 10 +++----
 gcc/dumpfile.c                                     | 33 ++++++++++++++++++----
 gcc/testsuite/c-c++-common/unroll-1.c              |  8 +++---
 gcc/testsuite/c-c++-common/unroll-2.c              |  8 +++---
 gcc/testsuite/c-c++-common/unroll-3.c              | 12 ++++----
 gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C        |  4 +--
 gcc/testsuite/g++.dg/tree-ssa/pr81408.C            |  2 +-
 gcc/testsuite/g++.dg/vect/slp-pr56812.cc           |  2 +-
 gcc/testsuite/gcc.dg/pr26570.c                     |  4 +--
 gcc/testsuite/gcc.dg/pr32773.c                     |  6 ++--
 gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c          |  8 +++---
 gcc/testsuite/gcc.dg/unroll-2.c                    |  4 +--
 gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c |  6 ++--
 gcc/testsuite/gfortran.dg/directive_unroll_1.f90   |  6 ++--
 gcc/testsuite/gfortran.dg/directive_unroll_2.f90   |  6 ++--
 gcc/testsuite/gfortran.dg/directive_unroll_3.f90   |  8 +++---
 gcc/testsuite/gnat.dg/unroll4.adb                  |  2 +-
 gcc/testsuite/lib/gcc-dg.exp                       | 20 +++++++++++++
 18 files changed, 96 insertions(+), 53 deletions(-)

Comments

Richard Biener Sept. 28, 2018, 9:11 a.m. UTC | #1
On Tue, Sep 25, 2018 at 9:12 PM David Malcolm <dmalcolm@redhat.com> wrote:
>
> As noted at Cauldron, dumpfile.c currently emits "note: " for all kinds
> of dump message, so that (after filtering) there's no distinction between
> MSG_OPTIMIZED_LOCATIONS vs MSG_NOTE vs MSG_MISSED_OPTIMIZATION in the
> textual output.
>
> This patch changes dumpfile.c so that the "note: " varies to show
> which MSG_* was used, with the string prefix matching that used for
> filtering in -fopt-info, hence e.g.
>   directive_unroll_3.f90:24:0: optimized: loop unrolled 7 times
> and:
>   pr19210-1.c:24:3: missed: missed loop optimization: niters analysis ends up with assumptions.
>
> The patch adds "dg-optimized" and "dg-missed" directives for use
> in the testsuite for matching these (with -fopt-info on stderr; they
> don't help for dumpfile output).
>
> The patch also converts the various problem-reporting dump messages
> in coverage.c:get_coverage_counts to use MSG_MISSED_OPTIMIZATION
> rather than MSG_OPTIMIZED_LOCATIONS, as the docs call out "optimized"
> as
>   "information when an optimization is successfully applied",
> whereas "missed" is for
>   "information about missed optimizations",
> and problems with profile data seem to me to fall much more into the
> latter category than the former.  Doing so requires converting a few
> tests from using "-fopt-info" (which is implicitly
> "-fopt-info-optimized-optall") to getting the "missed" optimizations.
> Changing them to "-fopt-info-missed" added lots of noise from the
> vectorizer, so I changed these tests to use "-fopt-info-missed-ipa".
>
> Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
>
> OK for trunk?

OK.

Richard.

> gcc/ChangeLog:
>         * coverage.c (get_coverage_counts): Convert problem-reporting dump
>         messages from MSG_OPTIMIZED_LOCATIONS to MSG_MISSED_OPTIMIZATION.
>         * dumpfile.c (kind_as_string): New function.
>         (dump_loc): Rather than a hardcoded prefix of "note: ", use
>         kind_as_string to vary the prefix based on dump_kind.
>         (selftest::test_capture_of_dump_calls): Update for above.
>
> gcc/testsuite/ChangeLog:
>         * c-c++-common/unroll-1.c: Update expected output from "note" to
>         "optimized".
>         * c-c++-common/unroll-2.c: Likewise.
>         * c-c++-common/unroll-3.c: Likewise.
>         * g++.dg/tree-ssa/dom-invalid.C: Update expected output from
>         dg-message to dg-missed.  Convert param from -fopt-info to
>         -fopt-info-missed-ipa.
>         * g++.dg/tree-ssa/pr81408.C: Update expected output from
>         dg-message to dg-missed.
>         * g++.dg/vect/slp-pr56812.cc: Update expected output from
>         dg-message to dg-optimized.
>         * gcc.dg/pr26570.c: Update expected output from dg-message to
>         dg-missed.  Convert param from -fopt-info to
>         -fopt-info-missed-ipa.
>         * gcc.dg/pr32773.c: Likewise.
>         * gcc.dg/tree-ssa/pr19210-1.c: Update expected output from
>         dg-message to dg-missed.
>         * gcc.dg/unroll-2.c: Update expected output from dg-message to
>         dg-optimized.
>         * gcc.dg/vect/nodump-vect-opt-info-1.c: Likewise.  Convert param
>         from -fopt-info to -fopt-info-vec.
>         * gfortran.dg/directive_unroll_1.f90: Update expected output from
>         "note" to "optimized".
>         * gfortran.dg/directive_unroll_2.f90: Likewise.
>         * gfortran.dg/directive_unroll_3.f90: Likewise.
>         * gnat.dg/unroll4.adb: Likewise.
>         * lib/gcc-dg.exp (dg-optimized): New procedure.
>         (dg-missed): New procedure.
> ---
>  gcc/coverage.c                                     | 10 +++----
>  gcc/dumpfile.c                                     | 33 ++++++++++++++++++----
>  gcc/testsuite/c-c++-common/unroll-1.c              |  8 +++---
>  gcc/testsuite/c-c++-common/unroll-2.c              |  8 +++---
>  gcc/testsuite/c-c++-common/unroll-3.c              | 12 ++++----
>  gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C        |  4 +--
>  gcc/testsuite/g++.dg/tree-ssa/pr81408.C            |  2 +-
>  gcc/testsuite/g++.dg/vect/slp-pr56812.cc           |  2 +-
>  gcc/testsuite/gcc.dg/pr26570.c                     |  4 +--
>  gcc/testsuite/gcc.dg/pr32773.c                     |  6 ++--
>  gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c          |  8 +++---
>  gcc/testsuite/gcc.dg/unroll-2.c                    |  4 +--
>  gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c |  6 ++--
>  gcc/testsuite/gfortran.dg/directive_unroll_1.f90   |  6 ++--
>  gcc/testsuite/gfortran.dg/directive_unroll_2.f90   |  6 ++--
>  gcc/testsuite/gfortran.dg/directive_unroll_3.f90   |  8 +++---
>  gcc/testsuite/gnat.dg/unroll4.adb                  |  2 +-
>  gcc/testsuite/lib/gcc-dg.exp                       | 20 +++++++++++++
>  18 files changed, 96 insertions(+), 53 deletions(-)
>
> diff --git a/gcc/coverage.c b/gcc/coverage.c
> index 8f12778..2475495 100644
> --- a/gcc/coverage.c
> +++ b/gcc/coverage.c
> @@ -308,7 +308,7 @@ get_coverage_counts (unsigned counter, unsigned cfg_checksum,
>         {
>           dump_user_location_t loc
>             = dump_user_location_t::from_location_t (input_location);
> -         dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc,
> +         dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
>                            (flag_guess_branch_prob
>                             ? "file %s not found, execution counts estimated\n"
>                             : "file %s not found, execution counts assumed to "
> @@ -347,7 +347,7 @@ get_coverage_counts (unsigned counter, unsigned cfg_checksum,
>         {
>           dump_user_location_t loc
>             = dump_user_location_t::from_location_t (input_location);
> -          dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc,
> +          dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
>                             "use -Wno-error=coverage-mismatch to tolerate "
>                             "the mismatch but performance may drop if the "
>                             "function is hot\n");
> @@ -355,14 +355,14 @@ get_coverage_counts (unsigned counter, unsigned cfg_checksum,
>           if (!seen_error ()
>               && !warned++)
>             {
> -             dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc,
> +             dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
>                                 "coverage mismatch ignored\n");
> -             dump_printf (MSG_OPTIMIZED_LOCATIONS,
> +             dump_printf (MSG_MISSED_OPTIMIZATION,
>                             flag_guess_branch_prob
>                             ? G_("execution counts estimated\n")
>                             : G_("execution counts assumed to be zero\n"));
>               if (!flag_guess_branch_prob)
> -               dump_printf (MSG_OPTIMIZED_LOCATIONS,
> +               dump_printf (MSG_MISSED_OPTIMIZATION,
>                               "this can result in poorly optimized code\n");
>             }
>         }
> diff --git a/gcc/dumpfile.c b/gcc/dumpfile.c
> index 5655e46..db260a5 100644
> --- a/gcc/dumpfile.c
> +++ b/gcc/dumpfile.c
> @@ -437,6 +437,27 @@ dump_user_location_t::from_function_decl (tree fndecl)
>                                DECL_SOURCE_LOCATION (fndecl));
>  }
>
> +/* Extract the MSG_* component from DUMP_KIND and return a string for use
> +   as a prefix to dump messages.
> +   These match the strings in optinfo_verbosity_options and thus the
> +   "OPTIONS" within "-fopt-info-OPTIONS".  */
> +
> +static const char *
> +kind_as_string (dump_flags_t dump_kind)
> +{
> +  switch (dump_kind & MSG_ALL)
> +    {
> +    default:
> +      gcc_unreachable ();
> +    case MSG_OPTIMIZED_LOCATIONS:
> +      return "optimized";
> +    case MSG_MISSED_OPTIMIZATION:
> +      return "missed";
> +    case MSG_NOTE:
> +      return "note";
> +    }
> +}
> +
>  /* Print source location on DFILE if enabled.  */
>
>  static void
> @@ -445,13 +466,14 @@ dump_loc (dump_flags_t dump_kind, FILE *dfile, source_location loc)
>    if (dump_kind)
>      {
>        if (LOCATION_LOCUS (loc) > BUILTINS_LOCATION)
> -        fprintf (dfile, "%s:%d:%d: note: ", LOCATION_FILE (loc),
> +        fprintf (dfile, "%s:%d:%d: ", LOCATION_FILE (loc),
>                   LOCATION_LINE (loc), LOCATION_COLUMN (loc));
>        else if (current_function_decl)
> -        fprintf (dfile, "%s:%d:%d: note: ",
> +        fprintf (dfile, "%s:%d:%d: ",
>                   DECL_SOURCE_FILE (current_function_decl),
>                   DECL_SOURCE_LINE (current_function_decl),
>                   DECL_SOURCE_COLUMN (current_function_decl));
> +      fprintf (dfile, "%s: ", kind_as_string (dump_kind));
>        /* Indentation based on scope depth.  */
>        fprintf (dfile, "%*s", get_dump_scope_depth (), "");
>      }
> @@ -465,13 +487,14 @@ dump_loc (dump_flags_t dump_kind, pretty_printer *pp, source_location loc)
>    if (dump_kind)
>      {
>        if (LOCATION_LOCUS (loc) > BUILTINS_LOCATION)
> -       pp_printf (pp, "%s:%d:%d: note: ", LOCATION_FILE (loc),
> +       pp_printf (pp, "%s:%d:%d: ", LOCATION_FILE (loc),
>                    LOCATION_LINE (loc), LOCATION_COLUMN (loc));
>        else if (current_function_decl)
> -       pp_printf (pp, "%s:%d:%d: note: ",
> +       pp_printf (pp, "%s:%d:%d: ",
>                    DECL_SOURCE_FILE (current_function_decl),
>                    DECL_SOURCE_LINE (current_function_decl),
>                    DECL_SOURCE_COLUMN (current_function_decl));
> +      pp_printf (pp, "%s: ", kind_as_string (dump_kind));
>        /* Indentation based on scope depth.  */
>        for (unsigned i = 0; i < get_dump_scope_depth (); i++)
>         pp_character (pp, ' ');
> @@ -2325,7 +2348,7 @@ test_capture_of_dump_calls (const line_table_case &case_)
>      }
>      dump_printf_loc (MSG_NOTE, stmt, "msg 7\n");
>
> -    ASSERT_DUMPED_TEXT_EQ (tmp, "test.txt:5:10: note:    msg 4\n");
> +    ASSERT_DUMPED_TEXT_EQ (tmp, "test.txt:5:10: optimized:    msg 4\n");
>    }
>  }
>
> diff --git a/gcc/testsuite/c-c++-common/unroll-1.c b/gcc/testsuite/c-c++-common/unroll-1.c
> index 105a82c..fe7f4f3 100644
> --- a/gcc/testsuite/c-c++-common/unroll-1.c
> +++ b/gcc/testsuite/c-c++-common/unroll-1.c
> @@ -20,22 +20,22 @@ void test (void)
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= 15; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "21:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "21:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
>
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= j; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "26:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "26:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
>
>    #pragma GCC unroll 7
>    for (unsigned long i = 1; i <= j; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "31:.*: note: loop unrolled 3 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "31:.*: optimized: loop unrolled 3 times" "loop2_unroll" } } */
>
>    unsigned long i = 0;
>    #pragma GCC unroll 3
>    do {
>      bar(i);
>    } while (++i < 9);
> -  /* { dg-final { scan-rtl-dump "3\[79\]:.*: note: loop unrolled 2 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "3\[79\]:.*: optimized: loop unrolled 2 times" "loop2_unroll" } } */
>  }
> diff --git a/gcc/testsuite/c-c++-common/unroll-2.c b/gcc/testsuite/c-c++-common/unroll-2.c
> index a67a1d7..0bb4bbb 100644
> --- a/gcc/testsuite/c-c++-common/unroll-2.c
> +++ b/gcc/testsuite/c-c++-common/unroll-2.c
> @@ -20,22 +20,22 @@ void test (void)
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= 15; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "21:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "21:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
>
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= j; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "26:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "26:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
>
>    #pragma GCC unroll 7
>    for (unsigned long i = 1; i <= j; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "31:.*: note: loop unrolled 3 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "31:.*: optimized: loop unrolled 3 times" "loop2_unroll" } } */
>
>    unsigned long i = 0;
>    #pragma GCC unroll 3
>    do {
>      bar(i);
>    } while (++i < 9);
> -  /* { dg-final { scan-rtl-dump "3\[79\]:.*: note: loop unrolled 2 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "3\[79\]:.*: optimized: loop unrolled 2 times" "loop2_unroll" } } */
>  }
> diff --git a/gcc/testsuite/c-c++-common/unroll-3.c b/gcc/testsuite/c-c++-common/unroll-3.c
> index 6cefa75..541accb 100644
> --- a/gcc/testsuite/c-c++-common/unroll-3.c
> +++ b/gcc/testsuite/c-c++-common/unroll-3.c
> @@ -10,32 +10,32 @@ void test (void)
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= 8; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump-not "11:.*: note: loop unrolled" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump-not "11:.*: optimized: loop unrolled" "loop2_unroll" } } */
>
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= 7; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump-not "16:.*: note: loop unrolled" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump-not "16:.*: optimized: loop unrolled" "loop2_unroll" } } */
>
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= 15; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "21:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "21:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
>
>    #pragma GCC unroll 8
>    for (unsigned long i = 1; i <= j; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "26:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "26:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
>
>    #pragma GCC unroll 7
>    for (unsigned long i = 1; i <= j; ++i)
>      bar(i);
> -  /* { dg-final { scan-rtl-dump "31:.*: note: loop unrolled 3 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "31:.*: optimized: loop unrolled 3 times" "loop2_unroll" } } */
>
>    unsigned long i = 0;
>    #pragma GCC unroll 3
>    do {
>      bar(i);
>    } while (++i < 9);
> -  /* { dg-final { scan-rtl-dump "3\[79\]:.*: note: loop unrolled 2 times" "loop2_unroll" } } */
> +  /* { dg-final { scan-rtl-dump "3\[79\]:.*: optimized: loop unrolled 2 times" "loop2_unroll" } } */
>  }
> diff --git a/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C b/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C
> index 41343ee..056d6ed 100644
> --- a/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C
> +++ b/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C
> @@ -1,7 +1,7 @@
>  // PR tree-optimization/39557
>  // invalid post-dom info leads to infinite loop
>  // { dg-do run }
> -// { dg-options "-Wall -fno-exceptions -O2 -fprofile-use -fopt-info -fno-rtti" }
> +// { dg-options "-Wall -fno-exceptions -O2 -fprofile-use -fopt-info-missed-ipa -fno-rtti" }
>
>  struct C
>  {
> @@ -49,4 +49,4 @@ main ()
>  {
>   E e;
>   e.bar ();
> -} // { dg-message  "note: file" }
> +} // { dg-missed "file .* not found" }
> diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr81408.C b/gcc/testsuite/g++.dg/tree-ssa/pr81408.C
> index 89d6e55..39e32fd 100644
> --- a/gcc/testsuite/g++.dg/tree-ssa/pr81408.C
> +++ b/gcc/testsuite/g++.dg/tree-ssa/pr81408.C
> @@ -86,7 +86,7 @@ a::H t;
>  void
>  ShowHelpListCommands ()
>  {
> -  for (auto c : t) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
> +  for (auto c : t) /* { dg-missed "missed loop optimization: niters analysis .*" } */
>      a::ax << c.ay << a::av;
>  }
>
> diff --git a/gcc/testsuite/g++.dg/vect/slp-pr56812.cc b/gcc/testsuite/g++.dg/vect/slp-pr56812.cc
> index 08b0981..3e7a495 100644
> --- a/gcc/testsuite/g++.dg/vect/slp-pr56812.cc
> +++ b/gcc/testsuite/g++.dg/vect/slp-pr56812.cc
> @@ -14,6 +14,6 @@ public:
>  void mydata::Set (float x)
>  {
>    /* We want to vectorize this either as loop or basic-block.  */
> -  for (int i=0; i<upper(); i++) /* { dg-message "note: \[^\n\]* vectorized" } */
> +  for (int i=0; i<upper(); i++) /* { dg-optimized "\[^\n\]* vectorized" } */
>      data[i] = x;
>  }
> diff --git a/gcc/testsuite/gcc.dg/pr26570.c b/gcc/testsuite/gcc.dg/pr26570.c
> index 8ce8a44..e267055 100644
> --- a/gcc/testsuite/gcc.dg/pr26570.c
> +++ b/gcc/testsuite/gcc.dg/pr26570.c
> @@ -1,8 +1,8 @@
>  /* { dg-do compile } */
> -/* { dg-options "-O2 -fprofile-generate -fprofile-use -fopt-info" } */
> +/* { dg-options "-O2 -fprofile-generate -fprofile-use -fopt-info-missed-ipa" } */
>  /* { dg-require-profiling "-fprofile-generate" } */
>
>  unsigned test (unsigned a, unsigned b)
>  {
>    return a / b;
> -} /* { dg-message "note: \[^\n\]*execution counts estimated" } */
> +} /* { dg-missed "\[^\n\]*execution counts estimated" } */
> diff --git a/gcc/testsuite/gcc.dg/pr32773.c b/gcc/testsuite/gcc.dg/pr32773.c
> index 19a9019..edfcb3a 100644
> --- a/gcc/testsuite/gcc.dg/pr32773.c
> +++ b/gcc/testsuite/gcc.dg/pr32773.c
> @@ -1,9 +1,9 @@
>  /* { dg-do compile } */
> -/* { dg-options "-O -fprofile-use -fopt-info" } */
> -/* { dg-options "-O -m4 -fprofile-use -fopt-info" { target sh-*-* } } */
> +/* { dg-options "-O -fprofile-use -fopt-info-missed-ipa" } */
> +/* { dg-options "-O -m4 -fprofile-use -fopt-info-missed-ipa" { target sh-*-* } } */
>
>  void foo (int *p)
>  {
>    if (p)
>      *p = 0;
> -} /* { dg-message "note: \[^\n\]*execution counts estimated" } */
> +} /* { dg-missed "\[^\n\]*execution counts estimated" } */
> diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c b/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c
> index 9162d15..50d86a0 100644
> --- a/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c
> +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c
> @@ -6,10 +6,10 @@ void
>  f (unsigned n)
>  {
>    unsigned k;
> -  for(k = 0;k <= n;k++) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
> +  for(k = 0;k <= n;k++) /* { dg-missed "missed loop optimization: niters analysis .*" } */
>      g();
>
> -  for(k = 0;k <= n;k += 4) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
> +  for(k = 0;k <= n;k += 4) /* { dg-missed "missed loop optimization: niters analysis .*" } */
>      g();
>
>    /* We used to get warning for this loop.  However, since then # of iterations
> @@ -21,9 +21,9 @@ f (unsigned n)
>      g();
>
>    /* So we need the following loop, instead.  */
> -  for(k = 4;k <= n;k += 5) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
> +  for(k = 4;k <= n;k += 5) /* { dg-missed "missed loop optimization: niters analysis .*" } */
>      g();
>
> -  for(k = 15;k >= n;k--) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
> +  for(k = 15;k >= n;k--) /* { dg-missed "missed loop optimization: niters analysis .*" } */
>      g();
>  }
> diff --git a/gcc/testsuite/gcc.dg/unroll-2.c b/gcc/testsuite/gcc.dg/unroll-2.c
> index 46126c3..8baceaa 100644
> --- a/gcc/testsuite/gcc.dg/unroll-2.c
> +++ b/gcc/testsuite/gcc.dg/unroll-2.c
> @@ -15,7 +15,7 @@ int foo(void)
>  {
>    int i;
>    bar();
> -  for (i = 0; i < 2; i++) /* { dg-message "note: loop with 2 iterations completely unrolled" } */
> +  for (i = 0; i < 2; i++) /* { dg-optimized "loop with 2 iterations completely unrolled" } */
>    {
>       a[i]= b[i] + 1;
>    }
> @@ -25,7 +25,7 @@ int foo(void)
>  int foo2(void)
>  {
>    int i;
> -  for (i = 0; i < 2; i++) /* { dg-message "note: loop with 2 iterations completely unrolled" } */
> +  for (i = 0; i < 2; i++) /* { dg-optimized "loop with 2 iterations completely unrolled" } */
>    {
>       a[i]= b[i] + 1;
>    }
> diff --git a/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c b/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c
> index 0b14b8e..258e378 100644
> --- a/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c
> +++ b/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c
> @@ -1,11 +1,11 @@
>  /* { dg-do compile { target vect_int } } */
> -/* { dg-additional-options "-std=c99 -fopt-info -O3" } */
> +/* { dg-additional-options "-std=c99 -fopt-info-vec -O3" } */
>
>  void
>  vadd (int *dst, int *op1, int *op2, int count)
>  {
> -/* { dg-message "loop vectorized" "" { target *-*-* } .+2 } */
> -/* { dg-message "loop versioned for vectorization because of possible aliasing" "" { target *-*-* } .+1 } */
> +/* { dg-optimized "loop vectorized" "" { target *-*-* } .+2 } */
> +/* { dg-optimized "loop versioned for vectorization because of possible aliasing" "" { target *-*-* } .+1 } */
>    for (int i = 0; i < count; ++i)
>      dst[i] = op1[i] + op2[i];
>  }
> diff --git a/gcc/testsuite/gfortran.dg/directive_unroll_1.f90 b/gcc/testsuite/gfortran.dg/directive_unroll_1.f90
> index 85b3671..d758ad7 100644
> --- a/gcc/testsuite/gfortran.dg/directive_unroll_1.f90
> +++ b/gcc/testsuite/gfortran.dg/directive_unroll_1.f90
> @@ -24,7 +24,7 @@ subroutine test2(a, n)
>    DO i=1, n, 1
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "24:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "24:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test2
>
>  subroutine test3(a, n)
> @@ -36,7 +36,7 @@ subroutine test3(a, n)
>    DO i=n, 1, -1
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "36:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "36:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test3
>
>  subroutine test4(a, n)
> @@ -48,5 +48,5 @@ subroutine test4(a, n)
>    DO i=1, n, 2
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "48:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "48:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test4
> diff --git a/gcc/testsuite/gfortran.dg/directive_unroll_2.f90 b/gcc/testsuite/gfortran.dg/directive_unroll_2.f90
> index 6dff8fa..c726227 100644
> --- a/gcc/testsuite/gfortran.dg/directive_unroll_2.f90
> +++ b/gcc/testsuite/gfortran.dg/directive_unroll_2.f90
> @@ -24,7 +24,7 @@ subroutine test2(a, n)
>    DO i=1, n, 1
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "24:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "24:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test2
>
>  subroutine test3(a, n)
> @@ -36,7 +36,7 @@ subroutine test3(a, n)
>    DO i=n, 1, -1
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "36:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "36:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test3
>
>  subroutine test4(a, n)
> @@ -48,5 +48,5 @@ subroutine test4(a, n)
>    DO i=1, n, 2
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "48:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "48:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test4
> diff --git a/gcc/testsuite/gfortran.dg/directive_unroll_3.f90 b/gcc/testsuite/gfortran.dg/directive_unroll_3.f90
> index 4e3ec09..59a8e02 100644
> --- a/gcc/testsuite/gfortran.dg/directive_unroll_3.f90
> +++ b/gcc/testsuite/gfortran.dg/directive_unroll_3.f90
> @@ -12,7 +12,7 @@ subroutine test1(a)
>    DO i=1, 8, 1
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump-not "12:.: note: loop unrolled" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump-not "12:.: optimized: loop unrolled" "loop2_unroll" } }
>  end subroutine test1
>
>  subroutine test2(a, n)
> @@ -24,7 +24,7 @@ subroutine test2(a, n)
>    DO i=1, n, 1
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "24:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "24:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test2
>
>  subroutine test3(a, n)
> @@ -36,7 +36,7 @@ subroutine test3(a, n)
>    DO i=n, 1, -1
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "36:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "36:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test3
>
>  subroutine test4(a, n)
> @@ -48,5 +48,5 @@ subroutine test4(a, n)
>    DO i=1, n, 2
>      call dummy(a(i))
>    ENDDO
> -! { dg-final { scan-rtl-dump "48:.: note: loop unrolled 7 times" "loop2_unroll" } }
> +! { dg-final { scan-rtl-dump "48:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
>  end subroutine test4
> diff --git a/gcc/testsuite/gnat.dg/unroll4.adb b/gcc/testsuite/gnat.dg/unroll4.adb
> index d9b763a..0cea4e8 100644
> --- a/gcc/testsuite/gnat.dg/unroll4.adb
> +++ b/gcc/testsuite/gnat.dg/unroll4.adb
> @@ -23,4 +23,4 @@ package body Unroll4 is
>
>  end Unroll4;
>
> --- { dg-final { scan-rtl-dump-times "note: loop unrolled 7 times" 2 "loop2_unroll" } }
> +-- { dg-final { scan-rtl-dump-times "optimized: loop unrolled 7 times" 2 "loop2_unroll" } }
> diff --git a/gcc/testsuite/lib/gcc-dg.exp b/gcc/testsuite/lib/gcc-dg.exp
> index 24d0b00..c33a50c 100644
> --- a/gcc/testsuite/lib/gcc-dg.exp
> +++ b/gcc/testsuite/lib/gcc-dg.exp
> @@ -1194,6 +1194,26 @@ proc dg-locus { args } {
>      verbose "process-message:\n${dg-messages}" 2
>  }
>
> +# Handle output from -fopt-info for MSG_OPTIMIZED_LOCATIONS:
> +# a successful optimization.
> +
> +proc dg-optimized { args } {
> +    # Make this variable available here and to the saved proc.
> +    upvar dg-messages dg-messages
> +
> +    process-message saved-dg-error "optimized: " "$args"
> +}
> +
> +# Handle output from -fopt-info for MSG_MISSED_OPTIMIZATION:
> +# a missed optimization.
> +
> +proc dg-missed { args } {
> +    # Make this variable available here and to the saved proc.
> +    upvar dg-messages dg-messages
> +
> +    process-message saved-dg-error "missed: " "$args"
> +}
> +
>  # Check the existence of a gdb in the path, and return true if there
>  # is one.
>  #
> --
> 1.8.5.3
>
Andreas Schwab Sept. 29, 2018, 10:12 p.m. UTC | #2
That produces extra output that breaks a few tests.

g++.dg/vect/pr33426-ivdep-2.cc  -std=c++11 (test for excess errors)
g++.dg/vect/pr33426-ivdep-2.cc  -std=c++14 (test for excess errors)
g++.dg/vect/pr33426-ivdep-2.cc  -std=c++98 (test for excess errors)
g++.dg/vect/pr33426-ivdep-3.cc   (test for excess errors)
g++.dg/vect/pr33426-ivdep-4.cc   (test for excess errors)
g++.dg/vect/pr33426-ivdep.cc  -std=c++11 (test for excess errors)
g++.dg/vect/pr33426-ivdep.cc  -std=c++14 (test for excess errors)
g++.dg/vect/pr33426-ivdep.cc  -std=c++98 (test for excess errors)
gcc.dg/vect/nodump-vect-opt-info-1.c (test for excess errors)
gcc.dg/vect/vect-ivdep-1.c (test for excess errors)
gcc.dg/vect/vect-ivdep-1.c -flto -ffat-lto-objects (test for excess errors)
gcc.dg/vect/vect-ivdep-2.c (test for excess errors)
gcc.dg/vect/vect-ivdep-2.c -flto -ffat-lto-objects (test for excess errors)

FAIL: gcc.dg/vect/vect-ivdep-1.c (test for excess errors)
Excess errors:
/usr/local/gcc/gcc-20180929/gcc/testsuite/gcc.dg/vect/vect-ivdep-1.c:11:3: optimized:  loop versioned for vectorization to enhance alignment

Andreas.
David Malcolm Oct. 1, 2018, 2:13 p.m. UTC | #3
On Sun, 2018-09-30 at 00:12 +0200, Andreas Schwab wrote:
> That produces extra output that breaks a few tests.
> 
> g++.dg/vect/pr33426-ivdep-2.cc  -std=c++11 (test for excess errors)
> g++.dg/vect/pr33426-ivdep-2.cc  -std=c++14 (test for excess errors)
> g++.dg/vect/pr33426-ivdep-2.cc  -std=c++98 (test for excess errors)
> g++.dg/vect/pr33426-ivdep-3.cc   (test for excess errors)
> g++.dg/vect/pr33426-ivdep-4.cc   (test for excess errors)
> g++.dg/vect/pr33426-ivdep.cc  -std=c++11 (test for excess errors)
> g++.dg/vect/pr33426-ivdep.cc  -std=c++14 (test for excess errors)
> g++.dg/vect/pr33426-ivdep.cc  -std=c++98 (test for excess errors)
> gcc.dg/vect/nodump-vect-opt-info-1.c (test for excess errors)
> gcc.dg/vect/vect-ivdep-1.c (test for excess errors)
> gcc.dg/vect/vect-ivdep-1.c -flto -ffat-lto-objects (test for excess
> errors)
> gcc.dg/vect/vect-ivdep-2.c (test for excess errors)
> gcc.dg/vect/vect-ivdep-2.c -flto -ffat-lto-objects (test for excess
> errors)
> 
> FAIL: gcc.dg/vect/vect-ivdep-1.c (test for excess errors)
> Excess errors:
> /usr/local/gcc/gcc-20180929/gcc/testsuite/gcc.dg/vect/vect-ivdep-
> 1.c:11:3: optimized:  loop versioned for vectorization to enhance
> alignment

Thanks for the report; sorry about the breakage.

What target is this for?  I'm not seeing these issues on x86_64-pc-
linux-gnu.

I think that what's happening is that my patch changed various existing
dump messages from -fopt-info from being "note: " to being "optimized:
" or "missed: ".

gcc/testsuite/lib/prune.exp has:

    # Ignore informational notes.
    regsub -all "(^|\n)\[^\n\]*: note: \[^\n\]*" $text "" text

which strips out all notes after dg-message directives have been
checked.  Presumably these pre-existing "note: " dump messages were
being ignored, and are no longer matching that pattern.

I can see two approaches to fixing this:

(a) extend those lines in prune.exp to also ignore "optimized: " and
"missed: "

(b) figure out the criteria for when these messages appear, and add new
 dg-optimized and dg-missed directives to the tests in questions, with
suitable filters.

Is there a link to the .log files somewhere so I can see the precise
messages in question?  (e.g. are they all "loop versioned for
vectorization to enhance alignment"?).

Thanks, and sorry again about the breakage.
Dave
Andreas Schwab Oct. 1, 2018, 2:20 p.m. UTC | #4
On Okt 01 2018, David Malcolm <dmalcolm@redhat.com> wrote:

> Is there a link to the .log files somewhere so I can see the precise
> messages in question?  (e.g. are they all "loop versioned for
> vectorization to enhance alignment"?).

Yes, they are all the same message.

Andreas.
Rainer Orth Oct. 4, 2018, 11:30 a.m. UTC | #5
Hi Andreas,

> On Okt 01 2018, David Malcolm <dmalcolm@redhat.com> wrote:
>
>> Is there a link to the .log files somewhere so I can see the precise
>> messages in question?  (e.g. are they all "loop versioned for
>> vectorization to enhance alignment"?).
>
> Yes, they are all the same message.

just for the record: I'm seeing exactly the same on Solaris/SPARC (32
and 64-bit).

	Rainer
Rainer Orth Dec. 5, 2018, 1:57 p.m. UTC | #6
Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> writes:

> Hi Andreas,
>
>> On Okt 01 2018, David Malcolm <dmalcolm@redhat.com> wrote:
>>
>>> Is there a link to the .log files somewhere so I can see the precise
>>> messages in question?  (e.g. are they all "loop versioned for
>>> vectorization to enhance alignment"?).
>>
>> Yes, they are all the same message.
>
> just for the record: I'm seeing exactly the same on Solaris/SPARC (32
> and 64-bit).

I've now filed PR testsuite/88369 for this issue.

	Rainer
Thomas Schwinge Nov. 6, 2020, 8:38 a.m. UTC | #7
Hi!

On 2018-09-25T16:00:14-0400, David Malcolm <dmalcolm@redhat.com> wrote:
> As noted at Cauldron, dumpfile.c currently emits "note: " for all kinds
> of dump message, so that (after filtering) there's no distinction between
> MSG_OPTIMIZED_LOCATIONS vs MSG_NOTE vs MSG_MISSED_OPTIMIZATION in the
> textual output.
>
> This patch changes dumpfile.c so that the "note: " varies to show
> which MSG_* was used, with the string prefix matching that used for
> filtering in -fopt-info, hence e.g.
>   directive_unroll_3.f90:24:0: optimized: loop unrolled 7 times
> and:
>   pr19210-1.c:24:3: missed: missed loop optimization: niters analysis ends up with assumptions.
>
> The patch adds "dg-optimized" and "dg-missed" directives for use
> in the testsuite for matching these (with -fopt-info on stderr; they
> don't help for dumpfile output).

Thanks, this is very useful.


I just ran into a problem regarding these two:

> --- a/gcc/testsuite/lib/gcc-dg.exp
> +++ b/gcc/testsuite/lib/gcc-dg.exp

> +# Handle output from -fopt-info for MSG_OPTIMIZED_LOCATIONS:
> +# a successful optimization.
> +
> +proc dg-optimized { args } {
> +    # Make this variable available here and to the saved proc.
> +    upvar dg-messages dg-messages
> +
> +    process-message saved-dg-error "optimized: " "$args"
> +}
> +
> +# Handle output from -fopt-info for MSG_MISSED_OPTIMIZATION:
> +# a missed optimization.
> +
> +proc dg-missed { args } {
> +    # Make this variable available here and to the saved proc.
> +    upvar dg-messages dg-messages
> +
> +    process-message saved-dg-error "missed: " "$args"
> +}

If, in addition to the usual line location checking, you'd like to do
column location checking ("[column]: " prefix before the actual
diagnostic), and the actual diagnostic doesn't begin with whitespace,
then this currently fails.  To address this, OK to push the attached
patch "[testsuite] Enable column location checking for 'dg-optimized',
'dg-missed'" -- with or without the demonstrator
'gcc.dg/vect/nodump-vect-opt-info-1.c',
'gcc.dg/vect/nodump-vect-opt-info-2.c' changes, your call?  (I still have
to run this through regression testing.)


Grüße
 Thomas


-----------------
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Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Alexander Walter
Thomas Schwinge Nov. 6, 2020, 8:50 a.m. UTC | #8
Hi!

On 2018-09-25T16:00:14-0400, David Malcolm <dmalcolm@redhat.com> wrote:
> The patch adds "dg-optimized" and "dg-missed" directives

Another small thing I just noticed:

> --- a/gcc/testsuite/lib/gcc-dg.exp
> +++ b/gcc/testsuite/lib/gcc-dg.exp

> +# Handle output from -fopt-info for MSG_OPTIMIZED_LOCATIONS:
> +# a successful optimization.
> +
> +proc dg-optimized { args } {
> +    # Make this variable available here and to the saved proc.
> +    upvar dg-messages dg-messages
> +
> +    process-message saved-dg-error "optimized: " "$args"
> +}
> +
> +# Handle output from -fopt-info for MSG_MISSED_OPTIMIZATION:
> +# a missed optimization.
> +
> +proc dg-missed { args } {
> +    # Make this variable available here and to the saved proc.
> +    upvar dg-messages dg-messages
> +
> +    process-message saved-dg-error "missed: " "$args"
> +}

These currently print "(test for *errors*, line [...])".  However, these
diagnostics are not actually error diagnostics (fatal, meaning: causes
compilation to fail) but rather warning diagnostics (non-fatal, doesn't
cause compilation to fail).  Thus, same as 'dg-message', these should use
'saved-dg-warning' instead of 'saved-dg-error', which will print: "(test
for *warnings*, line [...])".  OK to change that after regression
testing?


Grüße
 Thomas
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Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Alexander Walter
Jeff Law Nov. 13, 2020, 10:06 p.m. UTC | #9
On 11/6/20 1:38 AM, Thomas Schwinge wrote:
> Hi!
>
> On 2018-09-25T16:00:14-0400, David Malcolm <dmalcolm@redhat.com> wrote:
>> As noted at Cauldron, dumpfile.c currently emits "note: " for all kinds
>> of dump message, so that (after filtering) there's no distinction between
>> MSG_OPTIMIZED_LOCATIONS vs MSG_NOTE vs MSG_MISSED_OPTIMIZATION in the
>> textual output.
>>
>> This patch changes dumpfile.c so that the "note: " varies to show
>> which MSG_* was used, with the string prefix matching that used for
>> filtering in -fopt-info, hence e.g.
>>   directive_unroll_3.f90:24:0: optimized: loop unrolled 7 times
>> and:
>>   pr19210-1.c:24:3: missed: missed loop optimization: niters analysis ends up with assumptions.
>>
>> The patch adds "dg-optimized" and "dg-missed" directives for use
>> in the testsuite for matching these (with -fopt-info on stderr; they
>> don't help for dumpfile output).
> Thanks, this is very useful.
>
>
> I just ran into a problem regarding these two:
>
>> --- a/gcc/testsuite/lib/gcc-dg.exp
>> +++ b/gcc/testsuite/lib/gcc-dg.exp
>> +# Handle output from -fopt-info for MSG_OPTIMIZED_LOCATIONS:
>> +# a successful optimization.
>> +
>> +proc dg-optimized { args } {
>> +    # Make this variable available here and to the saved proc.
>> +    upvar dg-messages dg-messages
>> +
>> +    process-message saved-dg-error "optimized: " "$args"
>> +}
>> +
>> +# Handle output from -fopt-info for MSG_MISSED_OPTIMIZATION:
>> +# a missed optimization.
>> +
>> +proc dg-missed { args } {
>> +    # Make this variable available here and to the saved proc.
>> +    upvar dg-messages dg-messages
>> +
>> +    process-message saved-dg-error "missed: " "$args"
>> +}
> If, in addition to the usual line location checking, you'd like to do
> column location checking ("[column]: " prefix before the actual
> diagnostic), and the actual diagnostic doesn't begin with whitespace,
> then this currently fails.  To address this, OK to push the attached
> patch "[testsuite] Enable column location checking for 'dg-optimized',
> 'dg-missed'" -- with or without the demonstrator
> 'gcc.dg/vect/nodump-vect-opt-info-1.c',
> 'gcc.dg/vect/nodump-vect-opt-info-2.c' changes, your call?  (I still have
> to run this through regression testing.)
>
>
> Grüße
>  Thomas
>
>
> -----------------
> Mentor Graphics (Deutschland) GmbH, Arnulfstraße 201, 80634 München / Germany
> Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Alexander Walter
>
> 0001-testsuite-Enable-column-location-checking-for-dg-opt.patch
>
> From f3046b8bea6a2a6489dd10d72cb038b92aa4fc38 Mon Sep 17 00:00:00 2001
> From: Thomas Schwinge <thomas@codesourcery.com>
> Date: Fri, 6 Nov 2020 09:18:06 +0100
> Subject: [PATCH] [testsuite] Enable column location checking for
>  'dg-optimized', 'dg-missed'
>
> 'process-message' would like the 'msgprefix' argument without trailing space.
>
> This is a bug-fix for commit ed2d9d3720adef3a260b8a55e17e744352a901fc
> "dumpfile.c: use prefixes other than 'note: ' for
> MSG_{OPTIMIZED_LOCATIONS|MISSED_OPTIMIZATION}", which added 'dg-optimized',
> 'dg-missed'.
>
> 	gcc/testsuite/
> 	* lib/gcc-dg.exp (dg-optimized, dg-missed): Fix 'process-message'
> 	call.
> 	* gcc.dg/vect/nodump-vect-opt-info-1.c: Demonstrate.
> 	* gcc.dg/vect/nodump-vect-opt-info-2.c: Likewise.

OK

jeff
Jeff Law Nov. 13, 2020, 10:06 p.m. UTC | #10
On 11/6/20 1:50 AM, Thomas Schwinge wrote:
> Hi!
>
> On 2018-09-25T16:00:14-0400, David Malcolm <dmalcolm@redhat.com> wrote:
>> The patch adds "dg-optimized" and "dg-missed" directives
> Another small thing I just noticed:
>
>> --- a/gcc/testsuite/lib/gcc-dg.exp
>> +++ b/gcc/testsuite/lib/gcc-dg.exp
>> +# Handle output from -fopt-info for MSG_OPTIMIZED_LOCATIONS:
>> +# a successful optimization.
>> +
>> +proc dg-optimized { args } {
>> +    # Make this variable available here and to the saved proc.
>> +    upvar dg-messages dg-messages
>> +
>> +    process-message saved-dg-error "optimized: " "$args"
>> +}
>> +
>> +# Handle output from -fopt-info for MSG_MISSED_OPTIMIZATION:
>> +# a missed optimization.
>> +
>> +proc dg-missed { args } {
>> +    # Make this variable available here and to the saved proc.
>> +    upvar dg-messages dg-messages
>> +
>> +    process-message saved-dg-error "missed: " "$args"
>> +}
> These currently print "(test for *errors*, line [...])".  However, these
> diagnostics are not actually error diagnostics (fatal, meaning: causes
> compilation to fail) but rather warning diagnostics (non-fatal, doesn't
> cause compilation to fail).  Thus, same as 'dg-message', these should use
> 'saved-dg-warning' instead of 'saved-dg-error', which will print: "(test
> for *warnings*, line [...])".  OK to change that after regression
> testing?

Yes.

jeff
Thomas Schwinge Nov. 24, 2020, 9:46 a.m. UTC | #11
Hi!

On 2020-11-13T15:06:24-0700, Jeff Law <law@redhat.com> wrote:
> On 11/6/20 1:38 AM, Thomas Schwinge wrote:
>> Subject: [PATCH] [testsuite] Enable column location checking for
>>  'dg-optimized', 'dg-missed'

> OK

Thanks, pushed "[testsuite] Enable column location checking for
'dg-optimized', 'dg-missed'" to master branch in commit
24b553d0f73ffea2551a77c67859ad6fe44110a6, and backported to
releases/gcc-10 branch in commit
f696775c43cc38233b037bf677f72b9b9c0b2cba, and releases/gcc-9 branch in
commit c71d97549d4dca17d452b4a47e406c5f6b2a1a56, see attached.
(Functionality not present in releases/gcc-8 branch.)


Grüße
 Thomas


-----------------
Mentor Graphics (Deutschland) GmbH, Arnulfstraße 201, 80634 München / Germany
Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Alexander Walter
Thomas Schwinge Nov. 24, 2020, 9:51 a.m. UTC | #12
Hi!

On 2020-11-13T15:06:45-0700, Jeff Law <law@redhat.com> wrote:
> On 11/6/20 1:50 AM, Thomas Schwinge wrote:
>> On 2018-09-25T16:00:14-0400, David Malcolm <dmalcolm@redhat.com> wrote:
>>> The patch adds "dg-optimized" and "dg-missed" directives

>> These currently print "(test for *errors*, line [...])".  However, these
>> diagnostics are not actually error diagnostics (fatal, meaning: causes
>> compilation to fail) but rather warning diagnostics (non-fatal, doesn't
>> cause compilation to fail).  Thus, same as 'dg-message', these should use
>> 'saved-dg-warning' instead of 'saved-dg-error', which will print: "(test
>> for *warnings*, line [...])".  OK to change that after regression
>> testing?
>
> Yes.

Thanks, pushed "[testsuite] Emit 'warning' instead of 'error' diagnostics
for 'dg-optimized', 'dg-missed'" to master branch in commit
54f72078fc05b865601645edafbc6b21701ea546, and backported to
releases/gcc-10 branch in commit
51bec3f6aa1218aeaa8e5e8cdef28fe712ba2902, and releases/gcc-9 branch in
commit b5eabef5daa1393763f2f6df6562d0c4c8ef63ab, see attached.
(Functionality not present in releases/gcc-8 branch.)


Grüße
 Thomas


-----------------
Mentor Graphics (Deutschland) GmbH, Arnulfstraße 201, 80634 München / Germany
Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Alexander Walter
diff mbox series

Patch

diff --git a/gcc/coverage.c b/gcc/coverage.c
index 8f12778..2475495 100644
--- a/gcc/coverage.c
+++ b/gcc/coverage.c
@@ -308,7 +308,7 @@  get_coverage_counts (unsigned counter, unsigned cfg_checksum,
 	{
 	  dump_user_location_t loc
 	    = dump_user_location_t::from_location_t (input_location);
-	  dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc,
+	  dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
 			   (flag_guess_branch_prob
 			    ? "file %s not found, execution counts estimated\n"
 			    : "file %s not found, execution counts assumed to "
@@ -347,7 +347,7 @@  get_coverage_counts (unsigned counter, unsigned cfg_checksum,
 	{
 	  dump_user_location_t loc
 	    = dump_user_location_t::from_location_t (input_location);
-          dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc,
+          dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
                            "use -Wno-error=coverage-mismatch to tolerate "
                            "the mismatch but performance may drop if the "
                            "function is hot\n");
@@ -355,14 +355,14 @@  get_coverage_counts (unsigned counter, unsigned cfg_checksum,
 	  if (!seen_error ()
 	      && !warned++)
 	    {
-	      dump_printf_loc (MSG_OPTIMIZED_LOCATIONS, loc,
+	      dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
                                "coverage mismatch ignored\n");
-	      dump_printf (MSG_OPTIMIZED_LOCATIONS,
+	      dump_printf (MSG_MISSED_OPTIMIZATION,
                            flag_guess_branch_prob
                            ? G_("execution counts estimated\n")
                            : G_("execution counts assumed to be zero\n"));
 	      if (!flag_guess_branch_prob)
-		dump_printf (MSG_OPTIMIZED_LOCATIONS,
+		dump_printf (MSG_MISSED_OPTIMIZATION,
                              "this can result in poorly optimized code\n");
 	    }
 	}
diff --git a/gcc/dumpfile.c b/gcc/dumpfile.c
index 5655e46..db260a5 100644
--- a/gcc/dumpfile.c
+++ b/gcc/dumpfile.c
@@ -437,6 +437,27 @@  dump_user_location_t::from_function_decl (tree fndecl)
 			       DECL_SOURCE_LOCATION (fndecl));
 }
 
+/* Extract the MSG_* component from DUMP_KIND and return a string for use
+   as a prefix to dump messages.
+   These match the strings in optinfo_verbosity_options and thus the
+   "OPTIONS" within "-fopt-info-OPTIONS".  */
+
+static const char *
+kind_as_string (dump_flags_t dump_kind)
+{
+  switch (dump_kind & MSG_ALL)
+    {
+    default:
+      gcc_unreachable ();
+    case MSG_OPTIMIZED_LOCATIONS:
+      return "optimized";
+    case MSG_MISSED_OPTIMIZATION:
+      return "missed";
+    case MSG_NOTE:
+      return "note";
+    }
+}
+
 /* Print source location on DFILE if enabled.  */
 
 static void
@@ -445,13 +466,14 @@  dump_loc (dump_flags_t dump_kind, FILE *dfile, source_location loc)
   if (dump_kind)
     {
       if (LOCATION_LOCUS (loc) > BUILTINS_LOCATION)
-        fprintf (dfile, "%s:%d:%d: note: ", LOCATION_FILE (loc),
+        fprintf (dfile, "%s:%d:%d: ", LOCATION_FILE (loc),
                  LOCATION_LINE (loc), LOCATION_COLUMN (loc));
       else if (current_function_decl)
-        fprintf (dfile, "%s:%d:%d: note: ",
+        fprintf (dfile, "%s:%d:%d: ",
                  DECL_SOURCE_FILE (current_function_decl),
                  DECL_SOURCE_LINE (current_function_decl),
                  DECL_SOURCE_COLUMN (current_function_decl));
+      fprintf (dfile, "%s: ", kind_as_string (dump_kind));
       /* Indentation based on scope depth.  */
       fprintf (dfile, "%*s", get_dump_scope_depth (), "");
     }
@@ -465,13 +487,14 @@  dump_loc (dump_flags_t dump_kind, pretty_printer *pp, source_location loc)
   if (dump_kind)
     {
       if (LOCATION_LOCUS (loc) > BUILTINS_LOCATION)
-	pp_printf (pp, "%s:%d:%d: note: ", LOCATION_FILE (loc),
+	pp_printf (pp, "%s:%d:%d: ", LOCATION_FILE (loc),
 		   LOCATION_LINE (loc), LOCATION_COLUMN (loc));
       else if (current_function_decl)
-	pp_printf (pp, "%s:%d:%d: note: ",
+	pp_printf (pp, "%s:%d:%d: ",
 		   DECL_SOURCE_FILE (current_function_decl),
 		   DECL_SOURCE_LINE (current_function_decl),
 		   DECL_SOURCE_COLUMN (current_function_decl));
+      pp_printf (pp, "%s: ", kind_as_string (dump_kind));
       /* Indentation based on scope depth.  */
       for (unsigned i = 0; i < get_dump_scope_depth (); i++)
 	pp_character (pp, ' ');
@@ -2325,7 +2348,7 @@  test_capture_of_dump_calls (const line_table_case &case_)
     }
     dump_printf_loc (MSG_NOTE, stmt, "msg 7\n");
 
-    ASSERT_DUMPED_TEXT_EQ (tmp, "test.txt:5:10: note:    msg 4\n");
+    ASSERT_DUMPED_TEXT_EQ (tmp, "test.txt:5:10: optimized:    msg 4\n");
   }
 }
 
diff --git a/gcc/testsuite/c-c++-common/unroll-1.c b/gcc/testsuite/c-c++-common/unroll-1.c
index 105a82c..fe7f4f3 100644
--- a/gcc/testsuite/c-c++-common/unroll-1.c
+++ b/gcc/testsuite/c-c++-common/unroll-1.c
@@ -20,22 +20,22 @@  void test (void)
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= 15; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "21:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "21:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
 
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= j; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "26:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "26:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
 
   #pragma GCC unroll 7
   for (unsigned long i = 1; i <= j; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "31:.*: note: loop unrolled 3 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "31:.*: optimized: loop unrolled 3 times" "loop2_unroll" } } */
 
   unsigned long i = 0;
   #pragma GCC unroll 3
   do {
     bar(i);
   } while (++i < 9);
-  /* { dg-final { scan-rtl-dump "3\[79\]:.*: note: loop unrolled 2 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "3\[79\]:.*: optimized: loop unrolled 2 times" "loop2_unroll" } } */
 }
diff --git a/gcc/testsuite/c-c++-common/unroll-2.c b/gcc/testsuite/c-c++-common/unroll-2.c
index a67a1d7..0bb4bbb 100644
--- a/gcc/testsuite/c-c++-common/unroll-2.c
+++ b/gcc/testsuite/c-c++-common/unroll-2.c
@@ -20,22 +20,22 @@  void test (void)
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= 15; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "21:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "21:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
 
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= j; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "26:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "26:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
 
   #pragma GCC unroll 7
   for (unsigned long i = 1; i <= j; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "31:.*: note: loop unrolled 3 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "31:.*: optimized: loop unrolled 3 times" "loop2_unroll" } } */
 
   unsigned long i = 0;
   #pragma GCC unroll 3
   do {
     bar(i);
   } while (++i < 9);
-  /* { dg-final { scan-rtl-dump "3\[79\]:.*: note: loop unrolled 2 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "3\[79\]:.*: optimized: loop unrolled 2 times" "loop2_unroll" } } */
 }
diff --git a/gcc/testsuite/c-c++-common/unroll-3.c b/gcc/testsuite/c-c++-common/unroll-3.c
index 6cefa75..541accb 100644
--- a/gcc/testsuite/c-c++-common/unroll-3.c
+++ b/gcc/testsuite/c-c++-common/unroll-3.c
@@ -10,32 +10,32 @@  void test (void)
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= 8; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump-not "11:.*: note: loop unrolled" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump-not "11:.*: optimized: loop unrolled" "loop2_unroll" } } */
 
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= 7; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump-not "16:.*: note: loop unrolled" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump-not "16:.*: optimized: loop unrolled" "loop2_unroll" } } */
 
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= 15; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "21:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "21:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
 
   #pragma GCC unroll 8
   for (unsigned long i = 1; i <= j; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "26:.*: note: loop unrolled 7 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "26:.*: optimized: loop unrolled 7 times" "loop2_unroll" } } */
 
   #pragma GCC unroll 7
   for (unsigned long i = 1; i <= j; ++i)
     bar(i);
-  /* { dg-final { scan-rtl-dump "31:.*: note: loop unrolled 3 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "31:.*: optimized: loop unrolled 3 times" "loop2_unroll" } } */
 
   unsigned long i = 0;
   #pragma GCC unroll 3
   do {
     bar(i);
   } while (++i < 9);
-  /* { dg-final { scan-rtl-dump "3\[79\]:.*: note: loop unrolled 2 times" "loop2_unroll" } } */
+  /* { dg-final { scan-rtl-dump "3\[79\]:.*: optimized: loop unrolled 2 times" "loop2_unroll" } } */
 }
diff --git a/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C b/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C
index 41343ee..056d6ed 100644
--- a/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C
+++ b/gcc/testsuite/g++.dg/tree-ssa/dom-invalid.C
@@ -1,7 +1,7 @@ 
 // PR tree-optimization/39557
 // invalid post-dom info leads to infinite loop
 // { dg-do run }
-// { dg-options "-Wall -fno-exceptions -O2 -fprofile-use -fopt-info -fno-rtti" }
+// { dg-options "-Wall -fno-exceptions -O2 -fprofile-use -fopt-info-missed-ipa -fno-rtti" }
 
 struct C
 {
@@ -49,4 +49,4 @@  main ()
 {
  E e;
  e.bar ();
-} // { dg-message  "note: file" }
+} // { dg-missed "file .* not found" }
diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr81408.C b/gcc/testsuite/g++.dg/tree-ssa/pr81408.C
index 89d6e55..39e32fd 100644
--- a/gcc/testsuite/g++.dg/tree-ssa/pr81408.C
+++ b/gcc/testsuite/g++.dg/tree-ssa/pr81408.C
@@ -86,7 +86,7 @@  a::H t;
 void
 ShowHelpListCommands ()
 {
-  for (auto c : t) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
+  for (auto c : t) /* { dg-missed "missed loop optimization: niters analysis .*" } */
     a::ax << c.ay << a::av;
 }
 
diff --git a/gcc/testsuite/g++.dg/vect/slp-pr56812.cc b/gcc/testsuite/g++.dg/vect/slp-pr56812.cc
index 08b0981..3e7a495 100644
--- a/gcc/testsuite/g++.dg/vect/slp-pr56812.cc
+++ b/gcc/testsuite/g++.dg/vect/slp-pr56812.cc
@@ -14,6 +14,6 @@  public:
 void mydata::Set (float x)
 {
   /* We want to vectorize this either as loop or basic-block.  */
-  for (int i=0; i<upper(); i++) /* { dg-message "note: \[^\n\]* vectorized" } */
+  for (int i=0; i<upper(); i++) /* { dg-optimized "\[^\n\]* vectorized" } */
     data[i] = x;
 }
diff --git a/gcc/testsuite/gcc.dg/pr26570.c b/gcc/testsuite/gcc.dg/pr26570.c
index 8ce8a44..e267055 100644
--- a/gcc/testsuite/gcc.dg/pr26570.c
+++ b/gcc/testsuite/gcc.dg/pr26570.c
@@ -1,8 +1,8 @@ 
 /* { dg-do compile } */
-/* { dg-options "-O2 -fprofile-generate -fprofile-use -fopt-info" } */
+/* { dg-options "-O2 -fprofile-generate -fprofile-use -fopt-info-missed-ipa" } */
 /* { dg-require-profiling "-fprofile-generate" } */
 
 unsigned test (unsigned a, unsigned b)
 {
   return a / b;
-} /* { dg-message "note: \[^\n\]*execution counts estimated" } */
+} /* { dg-missed "\[^\n\]*execution counts estimated" } */
diff --git a/gcc/testsuite/gcc.dg/pr32773.c b/gcc/testsuite/gcc.dg/pr32773.c
index 19a9019..edfcb3a 100644
--- a/gcc/testsuite/gcc.dg/pr32773.c
+++ b/gcc/testsuite/gcc.dg/pr32773.c
@@ -1,9 +1,9 @@ 
 /* { dg-do compile } */
-/* { dg-options "-O -fprofile-use -fopt-info" } */
-/* { dg-options "-O -m4 -fprofile-use -fopt-info" { target sh-*-* } } */
+/* { dg-options "-O -fprofile-use -fopt-info-missed-ipa" } */
+/* { dg-options "-O -m4 -fprofile-use -fopt-info-missed-ipa" { target sh-*-* } } */
 
 void foo (int *p)
 {
   if (p)
     *p = 0;
-} /* { dg-message "note: \[^\n\]*execution counts estimated" } */
+} /* { dg-missed "\[^\n\]*execution counts estimated" } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c b/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c
index 9162d15..50d86a0 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c
@@ -6,10 +6,10 @@  void
 f (unsigned n)
 {
   unsigned k;
-  for(k = 0;k <= n;k++) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
+  for(k = 0;k <= n;k++) /* { dg-missed "missed loop optimization: niters analysis .*" } */
     g();
 
-  for(k = 0;k <= n;k += 4) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
+  for(k = 0;k <= n;k += 4) /* { dg-missed "missed loop optimization: niters analysis .*" } */
     g();
 
   /* We used to get warning for this loop.  However, since then # of iterations
@@ -21,9 +21,9 @@  f (unsigned n)
     g();
 
   /* So we need the following loop, instead.  */
-  for(k = 4;k <= n;k += 5) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
+  for(k = 4;k <= n;k += 5) /* { dg-missed "missed loop optimization: niters analysis .*" } */
     g();
   
-  for(k = 15;k >= n;k--) /* { dg-message "note: missed loop optimization: niters analysis .*" } */
+  for(k = 15;k >= n;k--) /* { dg-missed "missed loop optimization: niters analysis .*" } */
     g();
 }
diff --git a/gcc/testsuite/gcc.dg/unroll-2.c b/gcc/testsuite/gcc.dg/unroll-2.c
index 46126c3..8baceaa 100644
--- a/gcc/testsuite/gcc.dg/unroll-2.c
+++ b/gcc/testsuite/gcc.dg/unroll-2.c
@@ -15,7 +15,7 @@  int foo(void)
 {
   int i;
   bar();
-  for (i = 0; i < 2; i++) /* { dg-message "note: loop with 2 iterations completely unrolled" } */
+  for (i = 0; i < 2; i++) /* { dg-optimized "loop with 2 iterations completely unrolled" } */
   {
      a[i]= b[i] + 1;
   }
@@ -25,7 +25,7 @@  int foo(void)
 int foo2(void)
 {
   int i;
-  for (i = 0; i < 2; i++) /* { dg-message "note: loop with 2 iterations completely unrolled" } */
+  for (i = 0; i < 2; i++) /* { dg-optimized "loop with 2 iterations completely unrolled" } */
   {
      a[i]= b[i] + 1;
   }
diff --git a/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c b/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c
index 0b14b8e..258e378 100644
--- a/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c
+++ b/gcc/testsuite/gcc.dg/vect/nodump-vect-opt-info-1.c
@@ -1,11 +1,11 @@ 
 /* { dg-do compile { target vect_int } } */
-/* { dg-additional-options "-std=c99 -fopt-info -O3" } */
+/* { dg-additional-options "-std=c99 -fopt-info-vec -O3" } */
 
 void
 vadd (int *dst, int *op1, int *op2, int count)
 {
-/* { dg-message "loop vectorized" "" { target *-*-* } .+2 } */
-/* { dg-message "loop versioned for vectorization because of possible aliasing" "" { target *-*-* } .+1 } */
+/* { dg-optimized "loop vectorized" "" { target *-*-* } .+2 } */
+/* { dg-optimized "loop versioned for vectorization because of possible aliasing" "" { target *-*-* } .+1 } */
   for (int i = 0; i < count; ++i)
     dst[i] = op1[i] + op2[i];
 }
diff --git a/gcc/testsuite/gfortran.dg/directive_unroll_1.f90 b/gcc/testsuite/gfortran.dg/directive_unroll_1.f90
index 85b3671..d758ad7 100644
--- a/gcc/testsuite/gfortran.dg/directive_unroll_1.f90
+++ b/gcc/testsuite/gfortran.dg/directive_unroll_1.f90
@@ -24,7 +24,7 @@  subroutine test2(a, n)
   DO i=1, n, 1
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "24:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "24:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test2
 
 subroutine test3(a, n)
@@ -36,7 +36,7 @@  subroutine test3(a, n)
   DO i=n, 1, -1
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "36:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "36:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test3
 
 subroutine test4(a, n)
@@ -48,5 +48,5 @@  subroutine test4(a, n)
   DO i=1, n, 2
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "48:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "48:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test4
diff --git a/gcc/testsuite/gfortran.dg/directive_unroll_2.f90 b/gcc/testsuite/gfortran.dg/directive_unroll_2.f90
index 6dff8fa..c726227 100644
--- a/gcc/testsuite/gfortran.dg/directive_unroll_2.f90
+++ b/gcc/testsuite/gfortran.dg/directive_unroll_2.f90
@@ -24,7 +24,7 @@  subroutine test2(a, n)
   DO i=1, n, 1
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "24:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "24:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test2
 
 subroutine test3(a, n)
@@ -36,7 +36,7 @@  subroutine test3(a, n)
   DO i=n, 1, -1
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "36:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "36:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test3
 
 subroutine test4(a, n)
@@ -48,5 +48,5 @@  subroutine test4(a, n)
   DO i=1, n, 2
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "48:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "48:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test4
diff --git a/gcc/testsuite/gfortran.dg/directive_unroll_3.f90 b/gcc/testsuite/gfortran.dg/directive_unroll_3.f90
index 4e3ec09..59a8e02 100644
--- a/gcc/testsuite/gfortran.dg/directive_unroll_3.f90
+++ b/gcc/testsuite/gfortran.dg/directive_unroll_3.f90
@@ -12,7 +12,7 @@  subroutine test1(a)
   DO i=1, 8, 1
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump-not "12:.: note: loop unrolled" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump-not "12:.: optimized: loop unrolled" "loop2_unroll" } }
 end subroutine test1
 
 subroutine test2(a, n)
@@ -24,7 +24,7 @@  subroutine test2(a, n)
   DO i=1, n, 1
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "24:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "24:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test2
 
 subroutine test3(a, n)
@@ -36,7 +36,7 @@  subroutine test3(a, n)
   DO i=n, 1, -1
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "36:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "36:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test3
 
 subroutine test4(a, n)
@@ -48,5 +48,5 @@  subroutine test4(a, n)
   DO i=1, n, 2
     call dummy(a(i))
   ENDDO
-! { dg-final { scan-rtl-dump "48:.: note: loop unrolled 7 times" "loop2_unroll" } }
+! { dg-final { scan-rtl-dump "48:.: optimized: loop unrolled 7 times" "loop2_unroll" } }
 end subroutine test4
diff --git a/gcc/testsuite/gnat.dg/unroll4.adb b/gcc/testsuite/gnat.dg/unroll4.adb
index d9b763a..0cea4e8 100644
--- a/gcc/testsuite/gnat.dg/unroll4.adb
+++ b/gcc/testsuite/gnat.dg/unroll4.adb
@@ -23,4 +23,4 @@  package body Unroll4 is
 
 end Unroll4;
 
--- { dg-final { scan-rtl-dump-times "note: loop unrolled 7 times" 2 "loop2_unroll" } }
+-- { dg-final { scan-rtl-dump-times "optimized: loop unrolled 7 times" 2 "loop2_unroll" } }
diff --git a/gcc/testsuite/lib/gcc-dg.exp b/gcc/testsuite/lib/gcc-dg.exp
index 24d0b00..c33a50c 100644
--- a/gcc/testsuite/lib/gcc-dg.exp
+++ b/gcc/testsuite/lib/gcc-dg.exp
@@ -1194,6 +1194,26 @@  proc dg-locus { args } {
     verbose "process-message:\n${dg-messages}" 2
 }
 
+# Handle output from -fopt-info for MSG_OPTIMIZED_LOCATIONS:
+# a successful optimization.
+
+proc dg-optimized { args } {
+    # Make this variable available here and to the saved proc.
+    upvar dg-messages dg-messages
+
+    process-message saved-dg-error "optimized: " "$args"
+}
+
+# Handle output from -fopt-info for MSG_MISSED_OPTIMIZATION:
+# a missed optimization.
+
+proc dg-missed { args } {
+    # Make this variable available here and to the saved proc.
+    upvar dg-messages dg-messages
+
+    process-message saved-dg-error "missed: " "$args"
+}
+
 # Check the existence of a gdb in the path, and return true if there
 # is one.
 #