diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index d0825743e45e243580a2ed9c42c32f76a5c7206e..465e7d9ffe6ec607845c6baa990e8052e6cc21bb 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,8 @@ 2017-06-17 Jason Merrill <jason@redhat.com> + PR c++/60063 - -Wunused-local-typedefs and templates. + * decl2.c (is_late_template_attribute): Return false for "used". + PR c++/70844 - -Wuseless-cast and inheriting constructor. * method.c (forward_parm): Suppress warn_useless_cast. diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c index 69cb40f29983171b4facf9ecd86fc4f86e2e9653..72239ec620812fa6f889f61f24fa2a413549b7aa 100644 --- a/gcc/cp/decl2.c +++ b/gcc/cp/decl2.c @@ -1091,9 +1091,10 @@ is_late_template_attribute (tree attr, tree decl) if (is_attribute_p ("weak", name)) return true; - /* Attribute unused is applied directly, as it appertains to + /* Attributes used and unused are applied directly, as they appertain to decls. */ - if (is_attribute_p ("unused", name)) + if (is_attribute_p ("unused", name) + || is_attribute_p ("used", name)) return false; /* Attribute tls_model wants to modify the symtab. */ diff --git a/gcc/testsuite/g++.dg/warn/Wunused-local-typedefs-4.C b/gcc/testsuite/g++.dg/warn/Wunused-local-typedefs-4.C new file mode 100644 index 0000000000000000000000000000000000000000..7efe1125477ec5dc9997c3aafb2236466174c42f --- /dev/null +++ b/gcc/testsuite/g++.dg/warn/Wunused-local-typedefs-4.C @@ -0,0 +1,13 @@ +// PR c++/60063 +// { dg-options -Wunused-local-typedefs } + +template <class> struct S; + +void foo (int i) { + typedef __attribute__ ((used)) S<int> X; +} + +template <class T> +void bar (T i) { + typedef __attribute__ ((used)) S<T> Y; +}