[Bug c++/79585] spurious -Wunused-variable on a pointer with attribute unused in function template
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Apr 27 21:22:01 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79585
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:
https://gcc.gnu.org/g:5f1cd1da1a805c3d00332da45c3ab78a3931af63
commit r10-7998-g5f1cd1da1a805c3d00332da45c3ab78a3931af63
Author: Jason Merrill <jason@redhat.com>
Date: Mon Jan 27 05:45:01 2020 -0500
c++: Avoid ICE with dependent attribute on type.
We previously happened to accept this testcase, but never actually did
anything useful with the attribute. The patch for PR86379 stopped using
TREE_TYPE as USING_DECL_SCOPE, so 'using A::b' no longer had TREE_TYPE set,
so the language-independent decl_attributes started crashing on it.
GNU attributes are more flexible in their placement than C++11 attributes,
so if we encounter a dependent GNU attribute that syntactically appertains
to a type rather than the declaration as a whole, move it to the
declaration; that's almost certainly what the user meant, anyway.
gcc/cp/ChangeLog
2020-04-27 Jason Merrill <jason@redhat.com>
PR c++/90750
PR c++/79585
* decl.c (grokdeclarator): Move dependent attribute to decl.
* decl2.c (splice_template_attributes): No longer static.
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