On Sat, Jun 01, 2013 at 10:11:24AM +0200, Jakub Jelinek wrote:
> On Sat, Jun 01, 2013 at 08:39:58AM +0400, Dinar Temirbulatov wrote:
> > I am investigating the problem.
>
> I'd guess you don't want to flush on DEBUG_INSN_Ps, because then you'd flush
> differently between -g and -g0. So perhaps something like:
Now bootstrapped/regtested on x86_64-linux and i686-linux. I see you've
already reverted in the mean time, so ok for trunk this way?
2013-06-01 Jakub Jelinek <ja...@redhat.com>
PR rtl-optimization/57268
* sched-deps.c (sched_analyze_2): Don't flush_pedning_lists
if DEBUG_INSN_P (insn).
Reapply
2013-05-31 Dinar Temirbulatov <di...@kugelworks.com>
PR rtl-optimization/57268
* sched-deps.c (sched_analyze_2): Flush dependence lists if
the sum of the read and write lists exceeds MAX_PENDING_LIST_LENGTH.
--- gcc/sched-deps.c (revision 199576)
+++ gcc/sched-deps.c (revision 199575)
@@ -2690,8 +2690,15 @@
/* Always add these dependencies to pending_reads, since
this insn may be followed by a write. */
- if (!deps->readonly)
- add_insn_mem_dependence (deps, true, insn, x);
+ if (!deps->readonly)
+ {
+ if ((deps->pending_read_list_length
+ + deps->pending_write_list_length)
+ > MAX_PENDING_LIST_LENGTH
+ && !DEBUG_INSN_P (insn))
+ flush_pending_lists (deps, insn, true, true);
+ add_insn_mem_dependence (deps, true, insn, x);
+ }
sched_analyze_2 (deps, XEXP (x, 0), insn);
Jakub
