| // RUN: %clang_cc1 -std=c++20 %S/Inputs/cxx20-module-std-subst-2a.cpp -triple %itanium_abi_triple -emit-module-interface -o %t |
| // RUN: %clang_cc1 -std=c++20 %s -triple %itanium_abi_triple -fmodule-file=%t -emit-llvm -o - | FileCheck %s |
| |
| export module Foo; |
| import RenameString; |
| |
| namespace std { |
| template <typename T> struct char_traits {}; |
| } // namespace std |
| |
| // use Sb mangling, not Ss as this is not global-module std::char_traits |
| // std::char_traits. |
| // CHECK-DAG: void @_ZW3Foo1fRSbIcStS_11char_traitsIcESaIcEE( |
| void f(str<char, std::char_traits<char>> &s) { |
| } |
