This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/50213] [4.6/4.7 Regression] Regression in space-optimized code relative to 4.5.x
- 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: Wed, 07 Sep 2011 09:31:02 +0000
- Subject: [Bug tree-optimization/50213] [4.6/4.7 Regression] Regression in space-optimized code relative to 4.5.x
- Auto-submitted: auto-generated
- References: <bug-50213-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50213
--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-09-07 09:31:02 UTC ---
Other simple heuristic would be to not propagate the IV increment (see what
DOM does in simple_iv_increment_p). I'm going to test a patch like that.