[x86] GFNI enabling[1/4]

Fri, 13 Oct 2017 00:04:11 -0700 

Hi,

gcc/
        * gcc/common/config/i386/i386-common.c (OPTION_MASK_ISA_GFNI_SET,
        (OPTION_MASK_ISA_GFNI_UNSET): New.
        (ix86_handle_option): Handle OPT_mgfni.
        * gcc/config/i386/cpuid.h (bit_GFNI): New.
        * gcc/config/i386/driver-i386.c (host_detect_local_cpu): Detect gfni.
        * gcc/config/i386/i386-c.c (ix86_target_macros_internal): Define 
__GFNI__.
        * gcc/config/i386/i386.c (ix86_target_string): Add -mgfni.
        (ix86_valid_target_attribute_inner_p): Add OPT_mgfni.
        * gcc/config/i386/i386.h (TARGET_GFNI, TARGET_GFNI_P): New.
        * gcc/config/i386/i386.opt: Add mgfni.

Here is the first patch of GFNI isaset enabling. It adds new option -mgfni for 
GFNI isaset and cpuid bit.
Docs for new instructions and isasets are here:
https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf
Ok for trunk? 

Thanks,
Julia

Attachment: 0001-gfni-option.patch
Description: 0001-gfni-option.patch

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