------- Comment #2 from abel at gcc dot gnu dot org 2009-12-25 10:44 -------
Confirmed. This needs my uncommitted patch from
http://gcc.gnu.org/ml/gcc-patches/2008-09/msg01931.html (which is correctly
saving and restoring can_issue_more variable in the presence of multiple
scheduling points) amended by the below fix by Alexander, as the original patch
failed to update one place. The -fsched-pressure flag has anything to do with
the bug only because on ppc64 it results in the different value of issue_rate.
Again we will need help with testing this on ppc64 as a combined patch with
other bugfixes.
diff --git a/gcc/sel-sched.c b/gcc/sel-sched.c
--- a/gcc/sel-sched.c
+++ b/gcc/sel-sched.c
@@ -4103,7 +4104,7 @@ invoke_reorder_hooks (fence_t fence)
ran_hook = true;
}
else
- issue_more = issue_rate;
+ issue_more = FENCE_ISSUE_MORE (fence);
--
abel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |abel at gcc dot gnu dot org,
| |amonakov at gcc dot gnu dot
| |org
AssignedTo|unassigned at gcc dot gnu |abel at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-12-25 10:44:11
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42389
