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[Bug tree-optimization/36792] [4.4 Regression] Revision 137631 causes many failures
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Jul 2008 15:55:12 -0000
- Subject: [Bug tree-optimization/36792] [4.4 Regression] Revision 137631 causes many failures
- References: <bug-36792-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from rguenth at gcc dot gnu dot org 2008-07-17 15:55 -------
Subject: Bug 36792
Author: rguenth
Date: Thu Jul 17 15:54:27 2008
New Revision: 137927
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=137927
Log:
2008-07-16 Richard Guenther <rguenther@suse.de>
PR tree-optimization/36792
* tree-ssa-pre.c (get_or_alloc_expr_for): Handle unary
expressions inserted by SCCVN.
(do_SCCVN_insertion): Adjust comment.
(execute_pre): Allow insertion for FRE again.
* tree-ssa-sccvn.c (simplify_unary_expression): Deal with
the GIMPLE_SINGLE_RHS statemens we get.
(init_scc_vn): Init VN_INFO->expr to NULL.
Modified:
branches/gimple-tuples-branch/gcc/ChangeLog.tuples
branches/gimple-tuples-branch/gcc/tree-ssa-pre.c
branches/gimple-tuples-branch/gcc/tree-ssa-sccvn.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36792