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[Bug tree-optimization/61438] [4.10 Regression] ICE on valid code at -O3 on x86_64-linux-gnu in in loop_preheader_edge, at cfgloop.c:1668
- 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: Tue, 10 Jun 2014 14:19:22 +0000
- Subject: [Bug tree-optimization/61438] [4.10 Regression] ICE on valid code at -O3 on x86_64-linux-gnu in in loop_preheader_edge, at cfgloop.c:1668
- Auto-submitted: auto-generated
- References: <bug-61438-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61438
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Jun 10 14:18:50 2014
New Revision: 211413
URL: http://gcc.gnu.org/viewcvs?rev=211413&root=gcc&view=rev
Log:
2014-06-10 Richard Biener <rguenther@suse.de>
PR tree-optimization/61438
* tree-ssa-pre.c (eliminate_dom_walker): Add do_pre member.
(eliminate_dom_walker::before_dom_children): Only try to inhibit
insertion of IVs if running PRE.
(eliminate): Adjust.
(pass_pre::execute): Likewise.
(pass_fre::execute): Likewise.
* gcc.dg/torture/pr61438.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr61438.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-pre.c