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[Bug tree-optimization/61452] [4.8/4.9/4.10 Regression] hang at -O1 and -Os on x86_64-linux-gnu
- 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, 11 Jun 2014 11:17:53 +0000
- Subject: [Bug tree-optimization/61452] [4.8/4.9/4.10 Regression] hang at -O1 and -Os on x86_64-linux-gnu
- Auto-submitted: auto-generated
- References: <bug-61452-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61452
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jun 11 11:17:21 2014
New Revision: 211450
URL: http://gcc.gnu.org/viewcvs?rev=211450&root=gcc&view=rev
Log:
2014-06-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/61452
* tree-ssa-sccvn.c (visit_phi): Remove pointless setting of
expr and has_constants in case we found a leader.
(simplify_binary_expression): Always valueize operands first.
(simplify_unary_expression): Likewise.
* gcc.dg/torture/pr61452.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr61452.c
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-sccvn.c