i386: Correct *vec_extractv2si_zext_mem

The second and third alternatives in *vec_extractv2si_zext_mem don't
require MMX.  But the second one requires SSE2.

	* config/i386/mmx.md (*vec_extractv2si_zext_mem): Doesn't require
	MMX.  Add isa attribute.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268963 138bc75d-0d04-0410-961f-82ee72b054a4
2 files changed