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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/56962] [4.8/4.9 Regression] SLSR caused miscompilation of fftw
Date: Mon, 15 Apr 2013 15:02:00 -0000
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X-Bugzilla-Component: tree-optimization
X-Bugzilla-Keywords: wrong-code
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56962

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-04-15 15:02:43 UTC ---
Author: jakub
Date: Mon Apr 15 14:56:36 2013
New Revision: 197978

URL: http://gcc.gnu.org/viewcvs?rev=197978&root=gcc&view=rev
Log:
    PR tree-optimization/56962
    * gimple-ssa-strength-reduction.c (record_increment): Only set
    initializer if gimple_assign_rhs_code is {,POINTER_}PLUS_EXPR and
    either rhs1 or rhs2 is equal to c->base_expr.

    * gcc.c-torture/execute/pr56962.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr56962.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-ssa-strength-reduction.c
    trunk/gcc/testsuite/ChangeLog

Author: jakub
Date: Mon Apr 15 15:00:06 2013
New Revision: 197979

URL: http://gcc.gnu.org/viewcvs?rev=197979&root=gcc&view=rev
Log:
    PR tree-optimization/56962
    * gimple-ssa-strength-reduction.c (record_increment): Only set
    initializer if gimple_assign_rhs_code is {,POINTER_}PLUS_EXPR and
    either rhs1 or rhs2 is equal to c->base_expr.

    * gcc.c-torture/execute/pr56962.c: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr56962.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/gimple-ssa-strength-reduction.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog