| // RUN: %clang_cc1 -std=c++20 -triple x86_64-apple-macosx10.7.0 -emit-llvm -o - %s -w | FileCheck %s | 
 |  | 
 | template <typename T> | 
 | auto ft1() { | 
 |   return []<typename U = T>(T p1 = [] { return T{}; } (), | 
 |                             U p2 = [] { return U{}; } ()) { return p1+p2; }; | 
 | } | 
 | void test_ft1() { | 
 |   // CHECK: call noundef i32 @_ZZZ3ft1IiEDavENKUlTyiT_E_clIiEEDaiS0_Ed0_NKUlvE_clEv | 
 |   // CHECK: call noundef i32 @_ZZZ3ft1IiEDavENKUlTyiT_E_clIiEEDaiS0_Ed_NKUlvE_clEv | 
 |   // CHECK: call noundef i32 @_ZZ3ft1IiEDavENKUlTyiT_E_clIiEEDaiS0_ | 
 |   ft1<int>()(); | 
 | } | 
 | // CHECK-LABEL: define linkonce_odr noundef i32 @_ZZ3ft1IiEDavENKUlTyiT_E_clIiEEDaiS0_ | 
 | // CHECK-LABEL: define linkonce_odr noundef i32 @_ZZZ3ft1IiEDavENKUlTyiT_E_clIiEEDaiS0_Ed0_NKUlvE_clEv | 
 | // CHECK-LABEL: define linkonce_odr noundef i32 @_ZZZ3ft1IiEDavENKUlTyiT_E_clIiEEDaiS0_Ed_NKUlvE_clEv | 
 |  | 
 | template <typename T> | 
 | auto vt1 = []<typename U = T>(T p1 = [] { return T{}; } (), | 
 |                               U p2 = [] { return U{}; } ()) { return p1+p2; }; | 
 | void test_vt1() { | 
 |   // CHECK: call noundef i32 @_ZZNK3vt1IiEMUlTyiT_E_clIiEEDaiS1_Ed0_NKUlvE_clEv | 
 |   // CHECK: call noundef i32 @_ZZNK3vt1IiEMUlTyiT_E_clIiEEDaiS1_Ed_NKUlvE_clEv | 
 |   // CHECK: call noundef i32 @_ZNK3vt1IiEMUlTyiT_E_clIiEEDaiS1_ | 
 |   vt1<int>(); | 
 | } | 
 | // CHECK-LABEL: define linkonce_odr noundef i32 @_ZNK3vt1IiEMUlTyiT_E_clIiEEDaiS1_ | 
 | // CHECK-LABEL: define linkonce_odr noundef i32 @_ZZNK3vt1IiEMUlTyiT_E_clIiEEDaiS1_Ed0_NKUlvE_clEv | 
 | // CHECK-LABEL: define linkonce_odr noundef i32 @_ZZNK3vt1IiEMUlTyiT_E_clIiEEDaiS1_Ed_NKUlvE_clEv |