49 lines
768 B
C++
49 lines
768 B
C++
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
|
|
struct A {
|
|
void f();
|
|
|
|
int a;
|
|
};
|
|
|
|
struct B : A {
|
|
double b;
|
|
};
|
|
|
|
void f() {
|
|
B b;
|
|
|
|
b.f();
|
|
}
|
|
|
|
// CHECK: define %struct.B* @_Z1fP1A(%struct.A* %a) [[NUW:#[0-9]+]]
|
|
B *f(A *a) {
|
|
// CHECK-NOT: br label
|
|
// CHECK: ret %struct.B*
|
|
return static_cast<B*>(a);
|
|
}
|
|
|
|
// PR5965
|
|
namespace PR5965 {
|
|
|
|
// CHECK: define %struct.A* @_ZN6PR59651fEP1B(%struct.B* %b) [[NUW]]
|
|
A *f(B* b) {
|
|
// CHECK-NOT: br label
|
|
// CHECK: ret %struct.A*
|
|
return b;
|
|
}
|
|
|
|
}
|
|
|
|
// Don't crash on a derived-to-base conversion of an r-value
|
|
// aggregate.
|
|
namespace test3 {
|
|
struct A {};
|
|
struct B : A {};
|
|
|
|
void foo(A a);
|
|
void test() {
|
|
foo(B());
|
|
}
|
|
}
|
|
|
|
// CHECK: attributes [[NUW]] = { nounwind{{.*}} }
|