Message ID | 53E51420.8060705@redhat.com |
---|---|
State | New |
Headers | show |
On Fri, Aug 08, 2014 at 02:17:04PM -0400, Jason Merrill wrote: > --- a/gcc/cp/pt.c > +++ b/gcc/cp/pt.c > @@ -7813,6 +7813,12 @@ lookup_template_class_1 (tree d1, tree arglist, tree in_decl, tree context, > } > } > > + if (OVERLOAD_TYPE_P (t) > + && !DECL_ALIAS_TEMPLATE_P (gen_tmpl)) > + if (tree attributes > + = lookup_attribute ("abi_tag", TYPE_ATTRIBUTES (template_type))) > + TYPE_ATTRIBUTES (t) = attributes; Doesn't this copy the first abi_tag attribute and all following attributes in the chain? If other attributes are possible at this point, shouldn't the above be done only if TYPE_CHAIN (attributes) == NULL_TREE and otherwise (perhaps in a loop) copy each abi_tag attribute individually? Jakub
commit b5879e54d61597e2255fd6a25affcb24862f2844 Author: Jason Merrill <jason@redhat.com> Date: Fri Aug 8 10:16:43 2014 -0400 * pt.c (lookup_template_class_1): Copy abi_tag. diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c index 30d8950..2592172 100644 --- a/gcc/cp/pt.c +++ b/gcc/cp/pt.c @@ -7813,6 +7813,12 @@ lookup_template_class_1 (tree d1, tree arglist, tree in_decl, tree context, } } + if (OVERLOAD_TYPE_P (t) + && !DECL_ALIAS_TEMPLATE_P (gen_tmpl)) + if (tree attributes + = lookup_attribute ("abi_tag", TYPE_ATTRIBUTES (template_type))) + TYPE_ATTRIBUTES (t) = attributes; + /* Let's consider the explicit specialization of a member of a class template specialization that is implicitly instantiated, e.g.: diff --git a/gcc/testsuite/g++.dg/abi/abi-tag8.C b/gcc/testsuite/g++.dg/abi/abi-tag8.C new file mode 100644 index 0000000..0a6eb58 --- /dev/null +++ b/gcc/testsuite/g++.dg/abi/abi-tag8.C @@ -0,0 +1,9 @@ +// { dg-options "-Wabi-tag" } + +template<class T> +struct __attribute ((__abi_tag__("cxx11"))) list // { dg-message "list" } +{ }; + +struct X { // { dg-warning "abi tag" } + list<int> l; // { dg-message "X::l" } +};