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[haifa-sched] PR rtl-optimization/68236: Exit early from autoprefetcher lookahead if not in haifa sched 

PR rtl-optimization/68236
	* haifa-sched.c (autopref_multipass_dfa_lookahead_guard): Return 0
	if insn_queue doesn't exist.
	(haifa_sched_finish): Reset insn_queue to NULL.

From-SVN: r230088
This commit is contained in:
Kyrylo Tkachov 2015-11-10 09:22:58 +00:00 committed by Kyrylo Tkachov
parent 0d20a76b28
commit df554b0e49
2 changed files with 12 additions and 1 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2015-11-10 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR rtl-optimization/68236
* haifa-sched.c (autopref_multipass_dfa_lookahead_guard): Return 0
if insn_queue doesn't exist.
(haifa_sched_finish): Reset insn_queue to NULL.
2015-11-10 Robert Suchanek <robert.suchanek@imgtec.com>
* regrename.c (create_new_chain): Initialize renamed and tied_chain.

6
gcc/haifa-sched.c
View File

@ -5803,7 +5803,10 @@ autopref_multipass_dfa_lookahead_guard (rtx_insn *insn1, int ready_index)
{
int r = 0;
if (PARAM_VALUE (PARAM_SCHED_AUTOPREF_QUEUE_DEPTH) <= 0)
/* Exit early if the param forbids this or if we're not entering here through
normal haifa scheduling. This can happen if selective scheduling is
explicitly enabled. */
if (!insn_queue || PARAM_VALUE (PARAM_SCHED_AUTOPREF_QUEUE_DEPTH) <= 0)
return 0;
if (sched_verbose >= 2 && ready_index == 0)
@ -7477,6 +7480,7 @@ haifa_sched_finish (void)
sched_deps_finish ();
sched_finish_luids ();
current_sched_info = NULL;
insn_queue = NULL;
sched_finish ();
}