This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/30930] [4.3 Regression] vector can cause to create an extra variable, DECL_GIMPLE_REG_P not recomputed
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Jan 2008 14:46:12 -0000
- Subject: [Bug tree-optimization/30930] [4.3 Regression] vector can cause to create an extra variable, DECL_GIMPLE_REG_P not recomputed
- References: <bug-30930-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from rguenth at gcc dot gnu dot org 2008-01-13 14:46 -------
It indeed works on the 4.2 branch where the loads magically disappear with the
first may_alias pass. Possibly because it doesn't pay attention to whether
DECL_GIMPLE_REG is set or not.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |missed-optimization
Known to work| |4.2.3
Last reconfirmed|0000-00-00 00:00:00 |2008-01-13 14:46:12
date| |
Summary|[4.3 Regression] vector can |[4.3 Regression] vector can
|cause to create an extra |cause to create an extra
|variable |variable, DECL_GIMPLE_REG_P
| |not recomputed
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30930