clang/test/CodeGenCXX/template-anonymous-types.cpp

38 строки
1.1 KiB
C++

// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm -o - | FileCheck %s
struct S {
enum { FOO = 42 };
enum { BAR = 42 };
};
template <typename T> struct X {
T value;
X(T t) : value(t) {}
int f() { return value; }
};
template <typename T> int f(T t) {
X<T> x(t);
return x.f();
}
void test() {
// Look for two instantiations, entirely internal to this TU, one for FOO's
// type and one for BAR's.
// CHECK: define internal i32 @"_Z1fIN1S3$_0EEiT_"(i32 %t)
(void)f(S::FOO);
// CHECK: define internal i32 @"_Z1fIN1S3$_1EEiT_"(i32 %t)
(void)f(S::BAR);
// Now check for the class template instantiations. Annoyingly, they are in
// reverse order.
//
// BAR's instantiation of X:
// CHECK: define internal i32 @"_ZN1XIN1S3$_1EE1fEv"(%struct.X* %this)
// CHECK: define internal void @"_ZN1XIN1S3$_1EEC2ES1_"(%struct.X* %this, i32 %t) unnamed_addr
//
// FOO's instantiation of X:
// CHECK: define internal i32 @"_ZN1XIN1S3$_0EE1fEv"(%struct.X* %this)
// CHECK: define internal void @"_ZN1XIN1S3$_0EEC2ES1_"(%struct.X* %this, i32 %t) unnamed_addr
}