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[Bug target/27883] [4.0/4.1/4.2 regression] in schedule_insns, at sched-rgn.c:3038 on mips
- From: "wilson at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Jul 2006 01:41:55 -0000
- Subject: [Bug target/27883] [4.0/4.1/4.2 regression] in schedule_insns, at sched-rgn.c:3038 on mips
- References: <bug-27883-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from wilson at gcc dot gnu dot org 2006-07-11 01:41 -------
Created an attachment (id=11857)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11857&action=view)
Delete old REG_DEAD notes before creating new ones.
This works for the testcase, but is otherwise untested. This just deletes the
old REG_DEAD notes for a local life update before creating new ones. I believe
this could be made simpler by eliminating UPDATE_LIFE_GLOBAL_RM_NOTES, and then
calling count_or_remove_death_notes if PROP_DEATH_NOTES is set for both global
and local updates. However, assuming we want what is on dataflow-branch, it
seems better to go with a safer non-conflicting patch for now, and let
dataflow-branch be the long term fix.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27883