re PR target/8322 (SSE2 intrinsics broken?)

re PR target/8322 (SSE2 intrinsics broken?)

	* i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Remove 'H'
	* i386.md (movsf*, movdf*): Use 'C' instead of 'H'
	* md.texi (machine dependent constraints): Document 'C'

	* simplify-rtx.c (simplify_subreg): Fix const_int->vector subregging.

	* i386.c (ix86_expand_vector_move): Fix.

	* i386.c (ix86_expand_builtin): Use sse2_maskmovdqu_rex64.
	* i386.md (sse2_maskmovdqu_rex64): New pattern

	PR target/8322
	* xmmintrin.h (_mm_stream_pi, _mm_stream_pd): Fix cast.
	(ix86_init_mmx_sse_builtins): Fix type.

From-SVN: r58631