1 // RUN: %clang_cc1 -verify -Wno-return-type -Wno-main -std=c++2a -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s
2 // expected-no-diagnostics
3 
4 namespace test1 {
5 template <bool> struct S {};
6 template <typename> concept C = true;
7 template <typename T = int> S<C<T>> f0() { return S<C<T>>{}; }
8 template S<C<int>> f0<>();
9 // CHECK: @_ZN5test12f0IiEENS_1SIL_ZNS_1CIT_EEEEEv(
10 }
11 
12 template <bool> struct S {};
13 template <typename> concept C = true;
14 template <typename T = int> S<C<T>> f0() { return S<C<T>>{}; }
15 template S<C<int>> f0<>();
16 // CHECK: @_Z2f0IiE1SIL_Z1CIT_EEEv(
17