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b817be038d
This fixes an ICE taking place in cp_default_conversion because we got a SCOPE_REF that doesn't have a type and so checking INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P (TREE_TYPE (exp)) will crash. This happens since the recent Joseph's change in decl_attributes whereby we don't skip C++11 attributes on types. [dcl.align] is clear that alignas applied to a function is ill-formed. That should be fixed, and we have PR90847 for that. But I think a more appropriate fix at this stage would be the following: in a template we want to splice dependent attributes and save them for later, and by doing so avoid this crash. PR c++/93530 - ICE on invalid alignas in a template. * decl.c (grokdeclarator): Call cplus_decl_attributes instead of decl_attributes. * g++.dg/cpp0x/alignas18.C: New test.
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