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[Bug tree-optimization/67221] [6 Regression] ICE at -Os and above on x86_64-linux-gnu: Segmentation fault (program cc1)
- 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 Aug 2015 14:18:05 +0000
- Subject: [Bug tree-optimization/67221] [6 Regression] ICE at -Os and above on x86_64-linux-gnu: Segmentation fault (program cc1)
- Auto-submitted: auto-generated
- References: <bug-67221-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67221
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Aug 17 14:17:33 2015
New Revision: 226938
URL: https://gcc.gnu.org/viewcvs?rev=226938&root=gcc&view=rev
Log:
2015-08-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/67221
* tree-ssa-sccvn.c (visit_phi): Keep all-TOP args TOP.
(sccvn_dom_walker::before_dom_children): Mark backedges of
non-executable blocks as not executable.
* gcc.dg/torture/pr67221.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr67221.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-sccvn.c