This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/43402] [4.5 Regression] dom1 miscompiles binary search
- From: "matz at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Mar 2010 16:05:34 -0000
- Subject: [Bug tree-optimization/43402] [4.5 Regression] dom1 miscompiles binary search
- References: <bug-43402-12182@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from matz at gcc dot gnu dot org 2010-03-17 16:05 -------
Hmm, I wonder how that could cause the bug. Probably because we can't rely
on SSA form being uptodate during cfgcleanup, and hence looking up PHI
arguments is wrong, at least for those SSA names that are registered for
updating.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43402