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[Bug tree-optimization/61787] wrong code at -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: Mon, 14 Jul 2014 10:51:20 +0000
- Subject: [Bug tree-optimization/61787] wrong code at -Os on x86_64-linux-gnu
- Auto-submitted: auto-generated
- References: <bug-61787-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61787
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Jul 14 10:50:46 2014
New Revision: 212513
URL: https://gcc.gnu.org/viewcvs?rev=212513&root=gcc&view=rev
Log:
2014-07-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/61757
PR tree-optimization/61783
PR tree-optimization/61787
* tree-ssa-dom.c (record_equality): Revert canonicalization
change and add comment.
(propagate_rhs_into_lhs): Revert previous fix, removing
loop depth restriction again.
* gcc.dg/torture/pr61757.c: New testcase.
* gcc.dg/torture/pr61787.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr61757.c
trunk/gcc/testsuite/gcc.dg/torture/pr61787.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-dom.c