[Bug rtl-optimization/34490] [4.3 Regression] r128833 causes miscompilation of glibc clock_gettime.c

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2007-12-18 00:13 -------
Subject: Bug 34490

Author: jakub
Date: Tue Dec 18 00:13:29 2007
New Revision: 131023

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131023
Log:
        PR rtl-optimization/34490
        * simplify-rtx.c (simplify_const_relational_operation): If !sign,
        don't reduce mmin/mmax using num_sign_bit_copies.

        * gcc.c-torture/execute/20071216-1.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/20071216-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/simplify-rtx.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34490