re PR middle-end/37042 (Strict-aliasing warnings are printed for _mm_load_si128, even though __m128i is __attribute__((__may_alias__)).)

2008-08-07  Richard Guenther  <rguenther@suse.de>

	PR middle-end/37042
	* tree-ssa-alias-warnings.c (nonstandard_alias_p): Ref-all
	pointers can access anything.

	* gcc.dg/Wstrict-aliasing-bogus-ref-all-2.c: New testcase.

From-SVN: r138837