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[Bug tree-optimization/21705] FRE does not eliminate a redundant pure call.
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 May 2005 18:53:43 -0000
- Subject: [Bug tree-optimization/21705] FRE does not eliminate a redundant pure call.
- References: <20050522023410.21705.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-25 18:53 -------
Subject: Bug 21705
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: dberlin@gcc.gnu.org 2005-05-25 18:53:25
Modified files:
gcc : ChangeLog tree-ssa-pre.c
Added files:
gcc/testsuite/gcc.dg/tree-ssa: ssa-pre-14.c
Log message:
2005-05-25 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/21705
* tree-ssa-pre.c (in_fre): New static variable.
(create_value_expr_from): Recursively value number reference ops
in argument lists.
(can_value_number_call): Temporary restrict only exists for
PRE, not FRE.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8896&r2=2.8897
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-pre.c.diff?cvsroot=gcc&r1=2.90&r2=2.91
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-14.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21705