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2008-07-15 Richard Guenther <rguenther@suse.de> PR middle-end/36369 * c-common.c (strict_aliasing_warning): Do not warn for TYPE_REF_CAN_ALIAS_ALL pointers. (c_common_get_alias_set): may_alias types are not special. * tree.c (build_pointer_type_for_mode): Look up the may_alias attribute and set can_ref_all accordingly. (build_reference_type_for_mode): Likewise. * doc/extend.texi (may_alias): Clarify. * gcc.dg/Wstrict-aliasing-bogus-ref-all.c: New testcase. From-SVN: r137843
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