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[PATCH 04/18] remove unused loads rtx_insn_list
- From: tbsaunde+gcc at tbsaunde dot org
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 20 Apr 2016 02:22:08 -0400
- Subject: [PATCH 04/18] remove unused loads rtx_insn_list
- Authentication-results: sourceware.org; auth=none
- References: <1461133342-10794-1-git-send-email-tbsaunde+gcc at tbsaunde dot org>
From: Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
gcc/ChangeLog:
2016-04-19 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 --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
--
2.7.4