Bootstrapped and regtested on x86_64-pc-linux-gnu, does this look OK for trunk? Do we want to condition this on abi_check (19)?
-- >8 -- As with other declaration attributes, we need to look through TEMPLATE_DECL when looking up the abi_tag attribute. PR c++/109715 gcc/cp/ChangeLog: * mangle.cc (get_abi_tags): Look through TEMPLATE_DECL. gcc/testsuite/ChangeLog: * g++.dg/abi/abi-tag25.C: New test. --- gcc/cp/mangle.cc | 3 +++ gcc/testsuite/g++.dg/abi/abi-tag25.C | 17 +++++++++++++++++ 2 files changed, 20 insertions(+) create mode 100644 gcc/testsuite/g++.dg/abi/abi-tag25.C diff --git a/gcc/cp/mangle.cc b/gcc/cp/mangle.cc index 0684f0e6038..1fbd879c116 100644 --- a/gcc/cp/mangle.cc +++ b/gcc/cp/mangle.cc @@ -527,6 +527,9 @@ get_abi_tags (tree t) if (!t || TREE_CODE (t) == NAMESPACE_DECL) return NULL_TREE; + if (TREE_CODE (t) == TEMPLATE_DECL && DECL_TEMPLATE_RESULT (t)) + t = DECL_TEMPLATE_RESULT (t); + if (DECL_P (t) && DECL_DECLARES_TYPE_P (t)) t = TREE_TYPE (t); diff --git a/gcc/testsuite/g++.dg/abi/abi-tag25.C b/gcc/testsuite/g++.dg/abi/abi-tag25.C new file mode 100644 index 00000000000..9847f0dccc8 --- /dev/null +++ b/gcc/testsuite/g++.dg/abi/abi-tag25.C @@ -0,0 +1,17 @@ +// PR c++/109715 +// { dg-do compile { target c++11 } } + +template<class T> +[[gnu::abi_tag("foo")]] void fun() { } + +template void fun<int>(); + +#if __cpp_variable_templates +template<class T> +[[gnu::abi_tag("foo")]] int var = 0; + +template int var<int>; +#endif + +// { dg-final { scan-assembler "_Z3funB3fooIiEvv" } } +// { dg-final { scan-assembler "_Z3varB3fooIiE" { target c++14 } } } -- 2.43.0.76.g1a87c842ec