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sched-deps.c (add_dependence_list_and_free): Simplify. 

* sched-deps.c (add_dependence_list_and_free): Simplify.
	(flush_pending_list_and_free): Fix a hack that was fixing a hack.  Free
	lists when add_dependence_list_and_free doesn't free them.

From-SVN: r190733
This commit is contained in:
Maxim Kuvyrkov 2012-08-27 22:11:48 +00:00 committed by Maxim Kuvyrkov
parent 28591f4a8c
commit 8febe3fad2
2 changed files with 18 additions and 12 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2012-08-27 Maxim Kuvyrkov <maxim@codesourcery.com>
* sched-deps.c (add_dependence_list_and_free): Simplify.
(flush_pending_list_and_free): Fix a hack that was fixing a hack. Free
lists when add_dependence_list_and_free doesn't free them.
2012-08-27 Uros Bizjak <ubizjak@gmail.com>
PR target/46254

24
gcc/sched-deps.c
View File

@ -1564,24 +1564,15 @@ static void
add_dependence_list_and_free (struct deps_desc *deps, rtx insn, rtx *listp,
int uncond, enum reg_note dep_type)
{
rtx list, next;
add_dependence_list (insn, *listp, uncond, dep_type);
/* We don't want to short-circuit dependencies involving debug
insns, because they may cause actual dependencies to be
disregarded. */
if (deps->readonly || DEBUG_INSN_P (insn))
{
add_dependence_list (insn, *listp, uncond, dep_type);
return;
}
return;
for (list = *listp, *listp = NULL; list ; list = next)
{
next = XEXP (list, 1);
if (uncond || ! sched_insns_conditions_mutex_p (insn, XEXP (list, 0)))
add_dependence (insn, XEXP (list, 0), dep_type);
free_INSN_LIST_node (list);
}
free_INSN_LIST_list (listp);
}
/* Remove all occurrences of INSN from LIST. Return the number of
@ -1765,6 +1756,15 @@ flush_pending_lists (struct deps_desc *deps, rtx insn, int for_read,
add_dependence_list_and_free (deps, insn, &deps->pending_jump_insns, 1,
REG_DEP_ANTI);
if (DEBUG_INSN_P (insn))
{
if (for_write)
free_INSN_LIST_list (&deps->pending_read_insns);
free_INSN_LIST_list (&deps->pending_write_insns);
free_INSN_LIST_list (&deps->last_pending_memory_flush);
free_INSN_LIST_list (&deps->pending_jump_insns);
}
if (!deps->readonly)
{
free_EXPR_LIST_list (&deps->pending_write_mems);