r179608 - in /trunk/gcc: ChangeLog config/i386/...

[matz@gcc.gnu.org]

Author: matz
Date: Thu Oct  6 13:27:47 2011
New Revision: 179608

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179608
Log:
	* i386/i386.opt (recip_mask, recip_mask_explicit,
	x_recip_mask_explicit): New variables and cl_target member.
	(mrecip=): New option.
	* i386/i386.h (RECIP_MASK_DIV, RECIP_MASK_SQRT, RECIP_MASK_VEC_DIV,
	RECIP_MASK_VEC_SQRT, RECIP_MASK_ALL, RECIP_MASK_NONE): New bitmasks.
	(TARGET_RECIP_DIV, TARGET_RECIP_SQRT, TARGET_RECIP_VEC_DIV,
	TARGET_RECIP_VEC_SQRT): New tests.
	* i386/i386.md (divsf3): Check TARGET_RECIP_DIV.
	(sqrt<mode>2): Check TARGET_RECIP_SQRT.
	* i386/sse.md (div<mode>3): Check TARGET_RECIP_VEC_DIV.
	(sqrt<mode>2): Check TARGET_RECIP_VEC_SQRT.
	* i386/i386.c (ix86_option_override_internal): Set recip_mask
	for -mrecip and -mrecip=options.
	(ix86_function_specific_save): Save recip_mask_explicit.
	(ix86_function_specific_restore): Restore recip_mask_explicit.

	* doc/invoke.texi (ix86 Options): Document the new option.

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