llvm-project/clang/test/CodeGenCXX/x86-64-abi-sret-vs-2word-st...

30 lines
592 B
C++

// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
// XTARGET: x86
// PR4242
// (PR 4242 bug is on 64-bit only, test passes on x86-32 as well)
struct S {
void* data[3];
};
struct T {
void* data[2];
};
// CHECK: %struct.T* byval
extern "C" S fail(int, int, int, int, T t, void* p) {
S s;
s.data[0] = t.data[0];
s.data[1] = t.data[1];
s.data[2] = p;
return s;
}
// CHECK: %struct.T* byval
extern "C" S* succeed(S* sret, int, int, int, int, T t, void* p) {
sret->data[0] = t.data[0];
sret->data[1] = t.data[1];
sret->data[2] = p;
return sret;
}