[Bug target/53383] Allow -mpreferred-stack-boundary=3 on x86-64

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383

--- Comment #16 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2012-06-22 17:11:10 UTC ---
Author: hjl
Date: Fri Jun 22 17:10:58 2012
New Revision: 188893

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188893
Log:
Allow -mpreferred-stack-boundary=3 on x86-64

    PR target/53383
    * doc/invoke.texi: Add a warning for -mpreferred-stack-boundary=3.

    * config/i386/i386.c (ix86_option_override_internal): Allow
    -mpreferred-stack-boundary=3 for 64-bit if SSE is disabled.

    * config/i386/i386.h (MIN_STACK_BOUNDARY): Set to 64 for 64-bit
    if SSE is disabled.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.h
    trunk/gcc/doc/invoke.texi