// RUN: %clang_cc1 -verify -Wno-return-type -Wno-main -std=c++2a -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s // expected-no-diagnostics namespace test1 { template <bool> struct S {}; template <typename> concept C = true; template <typename T = int> S<C<T>> f0() { return S<C<T>>{}; } template S<C<int>> f0<>(); // CHECK: @_ZN5test12f0IiEENS_1SIL_ZNS_1CIT_EEEEEv( } template <bool> struct S {}; template <typename> concept C = true; template <typename T = int> S<C<T>> f0() { return S<C<T>>{}; } template S<C<int>> f0<>(); // CHECK: @_Z2f0IiE1SIL_Z1CIT_EEEv(