This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/28868] [4.2/4.3/4.4 Regression] Not eliminating the PHIs which have the same arguments
- 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: 4 Feb 2009 10:14:52 -0000
- Subject: [Bug tree-optimization/28868] [4.2/4.3/4.4 Regression] Not eliminating the PHIs which have the same arguments
- References: <bug-28868-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #15 from rguenth at gcc dot gnu dot org 2009-02-04 10:14 -------
I think this is bug is a valid request for FRE to eliminate redundant PHI
nodes:
<bb 4>:
# c_1 = PHI <a_4(D)(2), b_7(D)(3)>
# d_2 = PHI <a_4(D)(2), b_7(D)(3)>
D.1599_10 = c_1 + d_2;
There are no two same PHI nodes in PR23821.
I am going to fix this one.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2007-08-06 15:30:40 |2009-02-04 10:14:52
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28868