[Bug rtl-optimization/57300] [4.8/4.9 Regression] statement in expression miscompiled at -O3 in 32-bit mode

["jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57300

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

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

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri May 17 15:22:24 2013
New Revision: 199018

URL: http://gcc.gnu.org/viewcvs?rev=199018&root=gcc&view=rev
Log:
    PR rtl-optimization/57281
    PR rtl-optimization/57300
    * config/i386/i386.md (extendsidi2_1 dead reg splitter): Remove.
    (extendsidi2_1 peephole2s): Add instead 2 new peephole2s, that undo
    what the other splitter did if the registers are dead.

    * gcc.dg/pr57300.c: New test.
    * gcc.c-torture/execute/pr57281.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr57281.c
    trunk/gcc/testsuite/gcc.dg/pr57300.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog

Author: jakub
Date: Fri May 17 15:32:50 2013
New Revision: 199021

URL: http://gcc.gnu.org/viewcvs?rev=199021&root=gcc&view=rev
Log:
    PR rtl-optimization/57281
    PR rtl-optimization/57300
    * config/i386/i386.md (extendsidi2_1 dead reg splitter): Remove.
    (extendsidi2_1 peephole2s): Add instead 2 new peephole2s, that undo
    what the other splitter did if the registers are dead.

    * gcc.dg/pr57300.c: New test.
    * gcc.c-torture/execute/pr57281.c: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr57281.c
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/pr57300.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/config/i386/i386.md
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog