diff mbox

[2/6] remove unused loads rtx_insn_list

Message ID 1466418128-21257-3-git-send-email-tbsaunde+gcc@tbsaunde.org
State New
Headers show

Commit Message

tbsaunde+gcc@tbsaunde.org June 20, 2016, 10:22 a.m. UTC 
From: Trevor Saunders <tbsaunde+gcc@tbsaunde.org>

gcc/ChangeLog:

2016-06-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* gcse.c (struct ls_expr): Remove loads field.
	(ldst_entry): Adjust.
	(free_ldst_entry): Likewise.
	(print_ldst_list): Likewise.
	(compute_ld_motion_mems): Likewise.
---
 gcc/gcse.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)
diff mbox

Patch

diff --git a/gcc/gcse.c b/gcc/gcse.c
index a3a7dc3..127a65a 100644
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -342,7 +342,6 @@  struct ls_expr
   struct gcse_expr * expr;	/* Gcse expression reference for LM.  */
   rtx pattern;			/* Pattern of this mem.  */
   rtx pattern_regs;		/* List of registers mentioned by the mem.  */
-  rtx_insn_list *loads;		/* INSN list of loads seen.  */
   rtx_insn_list *stores;	/* INSN list of stores seen.  */
   struct ls_expr * next;	/* Next in the list.  */
   int invalid;			/* Invalid for some reason.  */
@@ -3605,7 +3604,6 @@  ldst_entry (rtx x)
   ptr->expr         = NULL;
   ptr->pattern      = x;
   ptr->pattern_regs = NULL_RTX;
-  ptr->loads        = NULL;
   ptr->stores       = NULL;
   ptr->reaching_reg = NULL_RTX;
   ptr->invalid      = 0;
@@ -3622,7 +3620,6 @@  ldst_entry (rtx x)
 static void
 free_ldst_entry (struct ls_expr * ptr)
 {
-  free_INSN_LIST_list (& ptr->loads);
   free_INSN_LIST_list (& ptr->stores);
 
   free (ptr);
@@ -3663,13 +3660,6 @@  print_ldst_list (FILE * file)
 
       print_rtl (file, ptr->pattern);
 
-      fprintf (file, "\n	 Loads : ");
-
-      if (ptr->loads)
-	print_rtl (file, ptr->loads);
-      else
-	fprintf (file, "(nil)");
-
       fprintf (file, "\n	Stores : ");
 
       if (ptr->stores)
@@ -3801,9 +3791,7 @@  compute_ld_motion_mems (void)
 		  if (MEM_P (src) && simple_mem (src))
 		    {
 		      ptr = ldst_entry (src);
-		      if (REG_P (dest))
-			ptr->loads = alloc_INSN_LIST (insn, ptr->loads);
-		      else
+		      if (!REG_P (dest))
 			ptr->invalid = 1;
 		    }
 		  else