diff mbox series

[1/3] VAX: Remove dead `adjacent_operands_p' function

Message ID alpine.DEB.2.21.2104211621220.44318@angie.orcam.me.uk
State Accepted
Headers show
Series VAX backend preparatory updates for switching to LRA | expand

Commit Message

Maciej W. Rozycki April 21, 2021, 9:33 p.m. UTC 
This function has never been used and it is unclear what its intended 
purpose was.

	gcc/
	* config/vax/vax-protos.h (adjacent_operands_p): Remove 
	prototype.
	* config/vax/vax.c (adjacent_operands_p): Remove.
---
 gcc/config/vax/vax-protos.h |    1 
 gcc/config/vax/vax.c        |   73 --------------------------------------------
 2 files changed, 74 deletions(-)

gcc-vax-adjacent_operands.diff
diff mbox series

Patch

Index: gcc/gcc/config/vax/vax-protos.h
===================================================================
--- gcc.orig/gcc/config/vax/vax-protos.h
+++ gcc/gcc/config/vax/vax-protos.h
@@ -24,7 +24,6 @@  extern void vax_expand_prologue (void);
 extern bool vax_acceptable_pic_operand_p (rtx, bool, bool);
 extern machine_mode vax_select_cc_mode (enum rtx_code, rtx, rtx);
 extern const char *cond_name (rtx);
-extern bool adjacent_operands_p (rtx, rtx, machine_mode);
 extern const char *rev_cond_name (rtx);
 extern void print_operand_address (FILE *, rtx);
 extern void print_operand (FILE *, rtx, int);
Index: gcc/gcc/config/vax/vax.c
===================================================================
--- gcc.orig/gcc/config/vax/vax.c
+++ gcc/gcc/config/vax/vax.c
@@ -2108,79 +2108,6 @@  vax_expand_addsub_di_operands (rtx * ope
     }
 }
 
-bool
-adjacent_operands_p (rtx lo, rtx hi, machine_mode mode)
-{
-  HOST_WIDE_INT lo_offset;
-  HOST_WIDE_INT hi_offset;
-
-  if (GET_CODE (lo) != GET_CODE (hi))
-    return false;
-
-  if (REG_P (lo))
-    return mode == SImode && REGNO (lo) + 1 == REGNO (hi);
-  if (CONST_INT_P (lo))
-    return INTVAL (hi) == 0 && UINTVAL (lo) < 64;
-  if (CONST_INT_P (lo))
-    return mode != SImode;
-
-  if (!MEM_P (lo))
-    return false;
-
-  if (MEM_VOLATILE_P (lo) || MEM_VOLATILE_P (hi))
-    return false;
-
-  lo = XEXP (lo, 0);
-  hi = XEXP (hi, 0);
-
-  if (GET_CODE (lo) == POST_INC /* || GET_CODE (lo) == PRE_DEC */)
-    return rtx_equal_p (lo, hi);
-
-  switch (GET_CODE (lo))
-    {
-    case REG:
-    case SYMBOL_REF:
-      lo_offset = 0;
-      break;
-    case CONST:
-      lo = XEXP (lo, 0);
-      /* FALLTHROUGH */
-    case PLUS:
-      if (!CONST_INT_P (XEXP (lo, 1)))
-	return false;
-      lo_offset = INTVAL (XEXP (lo, 1));
-      lo = XEXP (lo, 0);
-      break;
-    default:
-      return false;
-    }
-
-  switch (GET_CODE (hi))
-    {
-    case REG:
-    case SYMBOL_REF:
-      hi_offset = 0;
-      break;
-    case CONST:
-      hi = XEXP (hi, 0);
-      /* FALLTHROUGH */
-    case PLUS:
-      if (!CONST_INT_P (XEXP (hi, 1)))
-	return false;
-      hi_offset = INTVAL (XEXP (hi, 1));
-      hi = XEXP (hi, 0);
-      break;
-    default:
-      return false;
-    }
-
-  if (GET_CODE (lo) == MULT || GET_CODE (lo) == PLUS)
-    return false;
-
-  return rtx_equal_p (lo, hi)
-	 && hi_offset - lo_offset == GET_MODE_SIZE (mode);
-}
-
 /* Output assembler code for a block containing the constant parts
    of a trampoline, leaving space for the variable parts.  */