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[Bug tree-optimization/32919] [4.3 Regression] SSA corruption because of abnormal edges and PRE
- From: "drow at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Aug 2007 16:53:20 -0000
- Subject: [Bug tree-optimization/32919] [4.3 Regression] SSA corruption because of abnormal edges and PRE
- References: <bug-32919-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from drow at gcc dot gnu dot org 2007-08-01 16:53 -------
Subject: Bug 32919
Author: drow
Date: Wed Aug 1 16:53:01 2007
New Revision: 127132
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127132
Log:
PR tree-optimization/32919
* tree-ssa-sccvn.c (visit_phi): Do not visit abnormal PHIs.
* tree-ssa-coalesce.c (ssa_conflicts_dump): New.
(coalesce_ssa_name): Call it.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr32919.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-coalesce.c
trunk/gcc/tree-ssa-sccvn.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32919