1 // RUN: %clang_cc1 -no-opaque-pointers -std=c++2a -fblocks %s -triple %itanium_abi_triple -emit-llvm -o %t.ll 2 // RUN: FileCheck --input-file %t.ll %s 3 4 namespace test_func { 5 6 constexpr const char *test_default_arg(const char *f = __builtin_FUNCTION()) { 7 return f; 8 } 9 // CHECK: @[[EMPTY_STR:.+]] = private unnamed_addr constant [1 x i8] zeroinitializer 10 11 // CHECK: @_ZN9test_func6globalE = {{(dso_local )?}}global i8* getelementptr inbounds ([1 x i8], [1 x i8]* @[[EMPTY_STR]], i32 0, i32 0) 12 const char *global = test_default_arg(); 13 14 // CHECK: @_ZN9test_func10global_twoE = {{(dso_local )?}}global i8* getelementptr inbounds ([1 x i8], [1 x i8]* @[[EMPTY_STR]], i32 0, i32 0) 15 const char *global_two = __builtin_FUNCTION(); 16 17 const char * const global_three = test_default_arg(); 18 19 // CHECK: @[[STR_ONE:.+]] = private unnamed_addr constant [14 x i8] c"test_func_one\00" 20 // CHECK: @[[STR_TWO:.+]] = private unnamed_addr constant [14 x i8] c"test_func_two\00" 21 // CHECK: @[[STR_THREE:.+]] = private unnamed_addr constant [20 x i8] c"do_default_arg_test\00" 22 23 // CHECK: define {{(dso_local )?}}noundef i8* @_ZN9test_func13test_func_oneEv() 24 // CHECK: ret i8* getelementptr inbounds ([14 x i8], [14 x i8]* @[[STR_ONE]], i32 0, i32 0) 25 const char *test_func_one() { 26 return __builtin_FUNCTION(); 27 } 28 29 // CHECK: define {{(dso_local )?}}noundef i8* @_ZN9test_func13test_func_twoEv() 30 // CHECK: ret i8* getelementptr inbounds ([14 x i8], [14 x i8]* @[[STR_TWO]], i32 0, i32 0) 31 const char *test_func_two() { 32 return __builtin_FUNCTION(); 33 } 34 35 // CHECK: define {{(dso_local )?}}void @_ZN9test_func19do_default_arg_testEv() 36 // CHECK: %call = call noundef i8* @_ZN9test_func16test_default_argEPKc(i8* noundef getelementptr inbounds ([20 x i8], [20 x i8]* @[[STR_THREE]], i32 0, i32 0)) 37 void do_default_arg_test() { 38 test_default_arg(); 39 } 40 41 } // namespace test_func 42