[Bug target/30778] [4.3 Regression] invalid code generation for memset() with -mtune=k8

[hubicka at gcc dot gnu dot org]

------- Comment #8 from hubicka at gcc dot gnu dot org  2007-02-25 17:37 -------
Subject: Bug 30778

Author: hubicka
Date: Sun Feb 25 17:37:37 2007
New Revision: 122313

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122313
Log:
        PR target/30778
        * i386.c (counter_mode): New function.
        (expand_set_or_movmem_via_loop): Use it.
        (expand_movmem_epilogue): Likewise; fix pasto.
        (ix86_expand_movmem): Do emit guard even for constant counts.
        (ix86_expand_setmem): Likewise.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr30778.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30778