[Bug rtl-optimization/43438] [4.3 Regression] possible wrong code bug

[rguenth at gcc dot gnu dot org]

------- Comment #13 from rguenth at gcc dot gnu dot org  2010-04-20 13:10 -------
Subject: Bug 43438

Author: rguenth
Date: Tue Apr 20 13:09:42 2010
New Revision: 158555

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158555
Log:
2010-04-20  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/43438
        * combine.c (make_extraction): Properly zero-/sign-extend an
        extraction of the low part of a CONST_INT.

        * gcc.c-torture/execute/pr43438.c: New testcase.

Added:
    branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/execute/pr43438.c
Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/combine.c
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43438