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[Bug tree-optimization/65053] [5 Regression] PostgreSQL miscompilation
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 13 Feb 2015 23:21:02 +0000
- Subject: [Bug tree-optimization/65053] [5 Regression] PostgreSQL miscompilation
- Auto-submitted: auto-generated
- References: <bug-65053-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65053
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Feb 13 23:20:31 2015
New Revision: 220700
URL: https://gcc.gnu.org/viewcvs?rev=220700&root=gcc&view=rev
Log:
PR tree-optimization/65053
* tree-ssa-phiopt.c (value_replacement): When moving assign before
cond, either reset VR on lhs or set it to phi result VR.
* gcc.c-torture/execute/pr65053-1.c: New test.
* gcc.c-torture/execute/pr65053-2.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr65053-1.c
trunk/gcc/testsuite/gcc.c-torture/execute/pr65053-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-phiopt.c