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make stores rtx_insn_list a vec 

gcc/ChangeLog:

2016-07-06  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.

From-SVN: r238065
This commit is contained in:
Trevor Saunders 2016-07-06 23:53:15 +00:00 committed by Trevor Saunders
parent 5c57642971
commit 0777c850bf
2 changed files with 18 additions and 13 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2016-07-06 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.
2016-07-06 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* gcse.c (struct ls_expr): Remove loads field.

22
gcc/gcse.c
View File

@ -143,6 +143,7 @@ along with GCC; see the file COPYING3. If not see
#include "df.h"
#include "tm_p.h"
#include "insn-config.h"
#include "print-rtl.h"
#include "regs.h"
#include "ira.h"
#include "recog.h"
@ -342,7 +343,7 @@ 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 +3605,7 @@ 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 +3621,7 @@ 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 +3662,7 @@ 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 +3819,7 @@ 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 +3912,10 @@ 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;