[Bug c++/79585] spurious -Wunused-variable on a pointer with attribute unused in function template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79585 Jason Merrill changed: What|Removed |Added Target Milestone|10.0|9.4 Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #5 from Jason Merrill --- Fixed for 9.4/10.
[Bug c++/79585] spurious -Wunused-variable on a pointer with attribute unused in function template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79585 --- Comment #4 from CVS Commits --- The releases/gcc-9 branch has been updated by Jason Merrill : https://gcc.gnu.org/g:aa988998be8f85334665a6b049d5d9139408c250 commit r9-8550-gaa988998be8f85334665a6b049d5d9139408c250 Author: Jason Merrill 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 2020-01-27 Jason Merrill PR c++/90750 PR c++/79585 * decl.c (grokdeclarator): Move dependent attribute to decl. * decl2.c (splice_template_attributes): No longer static.
[Bug c++/79585] spurious -Wunused-variable on a pointer with attribute unused in function template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79585 --- Comment #3 from CVS Commits --- The master branch has been updated by Jason Merrill : https://gcc.gnu.org/g:5f1cd1da1a805c3d00332da45c3ab78a3931af63 commit r10-7998-g5f1cd1da1a805c3d00332da45c3ab78a3931af63 Author: Jason Merrill 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 PR c++/90750 PR c++/79585 * decl.c (grokdeclarator): Move dependent attribute to decl. * decl2.c (splice_template_attributes): No longer static.
[Bug c++/79585] spurious -Wunused-variable on a pointer with attribute unused in function template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79585 Jason Merrill changed: What|Removed |Added Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org Target Milestone|--- |10.0 CC||jason at gcc dot gnu.org Status|NEW |ASSIGNED
[Bug c++/79585] spurious -Wunused-variable on a pointer with attribute unused in function template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79585 Eric Gallager changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2017-08-22 CC||egallager at gcc dot gnu.org Ever confirmed|0 |1 Known to fail||4.0.1, 8.0 --- Comment #2 from Eric Gallager --- Confirmed.
[Bug c++/79585] spurious -Wunused-variable on a pointer with attribute unused in function template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79585 Martin Sebor changed: What|Removed |Added Keywords||diagnostic Known to fail||4.1.3, 4.2.2, 4.3.2, 4.6.0, ||5.3.0, 6.3.0, 7.0 --- Comment #1 from Martin Sebor --- The same spurious warning goes at least as far back as GCC 4. Clang doesn't have the problem.
