r122884 - in /trunk/gcc: ChangeLog config/i386/...

[uros@gcc.gnu.org]

Author: uros
Date: Tue Mar 13 21:18:33 2007
New Revision: 122884

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122884
Log:
        * config/i386/i386.opt (mcx16, msahf): New options.
        * config/i386/i386.c (x86_cmpxchg16b, x86_sahf): Remove.
        (ix86_tune_features) [X86_TUNE_USE_SAHF]: Enable for m_GENERIC.

        * config/i386/driver-i386.c (bit_LAHF_LM): New define.
        (host_detect_local_cpu): Detect cx16 and lahf_lm cpuid bits.
        Output -mcx16 and -msahf options when corresponding bit is set.

        * doc/invoke.texi (i386 and x86-64 Options): Document -mcx16
        and -msahf options.

testsuite/ChangeLog

        * testsuite/gcc.target/i386/cmpxchg16b-1.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/i386/cmpxchg16b-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/driver-i386.c
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.h
    trunk/gcc/config/i386/i386.opt
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/ChangeLog