1 // RUN: %clang_cc1 -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
test_default_arg(const char * f=__builtin_FUNCTION ())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 ptr @[[EMPTY_STR]]
12 const char *global = test_default_arg();
13
14 // CHECK: @_ZN9test_func10global_twoE = {{(dso_local )?}}global ptr @[[EMPTY_STR]]
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 ptr @_ZN9test_func13test_func_oneEv()
24 // CHECK: ret ptr @[[STR_ONE]]
test_func_one()25 const char *test_func_one() {
26 return __builtin_FUNCTION();
27 }
28
29 // CHECK: define {{(dso_local )?}}noundef ptr @_ZN9test_func13test_func_twoEv()
30 // CHECK: ret ptr @[[STR_TWO]]
test_func_two()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 ptr @_ZN9test_func16test_default_argEPKc(ptr noundef @[[STR_THREE]])
do_default_arg_test()37 void do_default_arg_test() {
38 test_default_arg();
39 }
40
41 } // namespace test_func
42