This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug middle-end/60546] [4.8/4.9] O2 & asan enable generates wrong insns
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 17 Mar 2014 11:53:05 +0000
- Subject: [Bug middle-end/60546] [4.8/4.9] O2 & asan enable generates wrong insns
- Auto-submitted: auto-generated
- References: <bug-60546-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60546
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Meanwhile -fno-tree-dse also "fixes" this but it only prevents mayhem
downstream
(Jakub bisected this to a revision that exposed the issue, r158047). You have
to disable both tree DSE passes btw, thus it points to a pass running after
DSE2. It's not -fhoist-adjacent-loads, not RTL PRE nor RTL loop invariant
motion
or the scheduler.