cxx11-user-defined-literal.cpp
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// RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s
struct S { S(); ~S(); S(const S &); void operator()(int); };
using size_t = decltype(sizeof(int));
S operator"" _x(const char *, size_t);
S operator"" _y(wchar_t);
S operator"" _z(unsigned long long);
S operator"" _f(long double);
S operator"" _r(const char *);
template<char...Cs> S operator"" _t() { return S(); }
// CHECK: @[[s_foo:.*]] = {{.*}} constant [4 x i8] c"foo\00"
// CHECK: @[[s_bar:.*]] = {{.*}} constant [4 x i8] c"bar\00"
// CHECK: @[[s_123:.*]] = {{.*}} constant [4 x i8] c"123\00"
// CHECK: @[[s_4_9:.*]] = {{.*}} constant [4 x i8] c"4.9\00"
// CHECK: @[[s_0xffffeeee:.*]] = {{.*}} constant [11 x i8] c"0xffffeeee\00"
void f() {
// CHECK: call void @_Zli2_xPKcm({{.*}}, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @[[s_foo]], i64 0, i64 0), i64 3)
// CHECK: call void @_Zli2_xPKcm({{.*}}, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @[[s_bar]], i64 0, i64 0), i64 3)
// CHECK: call void @_Zli2_yw({{.*}} 97)
// CHECK: call void @_Zli2_zy({{.*}} 42)
// CHECK: call void @_Zli2_fe({{.*}} x86_fp80 0xK3FFF8000000000000000)
// CHECK: call void @_ZN1SD1Ev({{.*}})
// CHECK: call void @_ZN1SD1Ev({{.*}})
// CHECK: call void @_ZN1SD1Ev({{.*}})
// CHECK: call void @_ZN1SD1Ev({{.*}})
// CHECK: call void @_ZN1SD1Ev({{.*}})
"foo"_x, "bar"_x, L'a'_y, 42_z, 1.0_f;
// CHECK: call void @_Zli2_rPKc({{.*}}, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @[[s_123]], i64 0, i64 0))
// CHECK: call void @_Zli2_rPKc({{.*}}, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @[[s_4_9]], i64 0, i64 0))
// CHECK: call void @_Zli2_rPKc({{.*}}, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @[[s_0xffffeeee]], i64 0, i64 0))
// CHECK: call void @_ZN1SD1Ev({{.*}})
// CHECK: call void @_ZN1SD1Ev({{.*}})
// CHECK: call void @_ZN1SD1Ev({{.*}})
123_r, 4.9_r, 0xffff\
eeee_r;
// FIXME: This mangling is insane. Maybe we should have a special case for
// char parameter packs?
// CHECK: call void @_Zli2_tIJLc48ELc120ELc49ELc50ELc51ELc52ELc53ELc54ELc55ELc56EEE1Sv({{.*}})
// CHECK: call void @_ZN1SD1Ev({{.*}})
0x12345678_t;
}
// CHECK: define {{.*}} @_Zli2_tIJLc48ELc120ELc49ELc50ELc51ELc52ELc53ELc54ELc55ELc56EEE1Sv(
template<typename T> auto g(T t) -> decltype("foo"_x(t)) { return "foo"_x(t); }
template<typename T> auto i(T t) -> decltype(operator"" _x("foo", 3)(t)) { return operator"" _x("foo", 3)(t); }
void h() {
g(42);
i(42);
}
// CHECK: define {{.*}} @_Z1hv()
// CHECK: call void @_Z1gIiEDTclclL_Zli2_xPKcmELA4_S0_ELm3EEfp_EET_(i32 42)
// CHECK: call void @_Z1iIiEDTclclL_Zli2_xPKcmELA4_S0_ELi3EEfp_EET_(i32 42)
// CHECK: define {{.*}} @_Z1gIiEDTclclL_Zli2_xPKcmELA4_S0_ELm3EEfp_EET_(i32
// CHECK: call void @_Zli2_xPKcm({{.*}}, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @{{.*}}, i64 0, i64 0), i64 3)
// CHECK: call void @_ZN1SclEi
// CHECK: call void @_ZN1SD1Ev
// CHECK: define {{.*}} @_Z1iIiEDTclclL_Zli2_xPKcmELA4_S0_ELi3EEfp_EET_(i32
// CHECK: call void @_Zli2_xPKcm({{.*}}, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @{{.*}}, i64 0, i64 0), i64 3)
// CHECK: call void @_ZN1SclEi
// CHECK: call void @_ZN1SD1Ev