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[Bug middle-end/59993] [4.9 Regression] ICE: SSA corruption
- 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: Thu, 30 Jan 2014 18:28:51 +0000
- Subject: [Bug middle-end/59993] [4.9 Regression] ICE: SSA corruption
- Auto-submitted: auto-generated
- References: <bug-59993-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59993
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Jan 30 18:28:19 2014
New Revision: 207316
URL: http://gcc.gnu.org/viewcvs?rev=207316&root=gcc&view=rev
Log:
2014-01-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/59993
* tree-ssa-forwprop.c (associate_pointerplus): Check we
can propagate form the earlier stmt and avoid the transform
when the intermediate result is needed.
* gcc.dg/torture/pr59993.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr59993.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-forwprop.c