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[PATCH 05/18] make stores rtx_insn_list a vec
- From: tbsaunde+gcc at tbsaunde dot org
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 20 Apr 2016 02:22:09 -0400
- Subject: [PATCH 05/18] make stores rtx_insn_list a vec
- 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): make stores field a vector.
(ldst_entry): Adjust.
(free_ldst_entry): Likewise.
(print_ldst_list): Likewise.
(compute_ld_motion_mems): Likewise.
(update_ld_motion_stores): Likewise.
---
gcc/gcse.c | 21 ++++++++-------------
1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/gcc/gcse.c b/gcc/gcse.c
index 127a65a..e7ffa8b 100644
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -342,7 +342,7 @@ 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 *stores; /* INSN list of stores seen. */
+ vec<rtx_insn *> stores; /* INSN list of stores seen. */
struct ls_expr * next; /* Next in the list. */
int invalid; /* Invalid for some reason. */
int index; /* If it maps to a bitmap index. */
@@ -3604,7 +3604,7 @@ ldst_entry (rtx x)
ptr->expr = NULL;
ptr->pattern = x;
ptr->pattern_regs = NULL_RTX;
- ptr->stores = NULL;
+ ptr->stores .create (0);
ptr->reaching_reg = NULL_RTX;
ptr->invalid = 0;
ptr->index = 0;
@@ -3620,7 +3620,7 @@ ldst_entry (rtx x)
static void
free_ldst_entry (struct ls_expr * ptr)
{
- free_INSN_LIST_list (& ptr->stores);
+ ptr->stores.release ();
free (ptr);
}
@@ -3661,11 +3661,7 @@ print_ldst_list (FILE * file)
print_rtl (file, ptr->pattern);
fprintf (file, "\n Stores : ");
-
- if (ptr->stores)
- print_rtl (file, ptr->stores);
- else
- fprintf (file, "(nil)");
+ print_rtx_insn_vec (file, ptr->stores);
fprintf (file, "\n\n");
}
@@ -3822,7 +3818,7 @@ compute_ld_motion_mems (void)
returns 0 for all REGs. */
&& can_assign_to_reg_without_clobbers_p (src,
src_mode))
- ptr->stores = alloc_INSN_LIST (insn, ptr->stores);
+ ptr->stores.safe_push (insn);
else
ptr->invalid = 1;
}
@@ -3915,11 +3911,10 @@ update_ld_motion_stores (struct gcse_expr * expr)
where reg is the reaching reg used in the load. We checked in
compute_ld_motion_mems that we can replace (set mem expr) with
(set reg expr) in that insn. */
- rtx list = mem_ptr->stores;
-
- for ( ; list != NULL_RTX; list = XEXP (list, 1))
+ rtx_insn *insn;
+ unsigned int i;
+ FOR_EACH_VEC_ELT_REVERSE (mem_ptr->stores, i, insn)
{
- rtx_insn *insn = as_a <rtx_insn *> (XEXP (list, 0));
rtx pat = PATTERN (insn);
rtx src = SET_SRC (pat);
rtx reg = expr->reaching_reg;
--
2.7.4