------- Comment #6 from hjl at gcc dot gnu dot org  2010-07-10 15:35 -------
Subject: Bug 44659

Author: hjl
Date: Sat Jul 10 15:35:04 2010
New Revision: 162040

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162040
Log:
Fix combine to match QI cmp patterns with upper 8bit register.

gcc/

2010-07-09  H.J. Lu  <hongjiu...@intel.com>

        Backport from mainline
        2010-06-29  Eric Botcazou  <ebotca...@adacore.com>

        PR rtl-optimization/44659
        * combine.c (make_compound_operation) <SUBREG>: Do not return the
        result of force_to_mode if it partially re-expanded the compound.

gcc/testsuite/

2010-07-09  H.J. Lu  <hongjiu...@intel.com>

        Backport from mainline
        2010-06-29  H.J. Lu  <hongjiu...@intel.com>

        PR rtl-optimization/44659
        * gcc.target/i386/extract-1.c: New.
        * gcc.target/i386/extract-2.c: Likewise.
        * gcc.target/i386/extract-3.c: Likewise.
        * gcc.target/i386/extract-4.c: Likewise.
        * gcc.target/i386/extract-5.c: Likewise.
        * gcc.target/i386/extract-6.c: Likewise.

Added:
    branches/ix86/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/extract-1.c
    branches/ix86/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/extract-2.c
    branches/ix86/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/extract-3.c
    branches/ix86/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/extract-4.c
    branches/ix86/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/extract-5.c
    branches/ix86/gcc-4_5-branch/gcc/testsuite/gcc.target/i386/extract-6.c
Modified:
    branches/ix86/gcc-4_5-branch/gcc/ChangeLog.ix86
    branches/ix86/gcc-4_5-branch/gcc/combine.c
    branches/ix86/gcc-4_5-branch/gcc/testsuite/ChangeLog.ix86


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44659

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