1// RUN: %clang_cc1 -emit-llvm -o - %s | grep memcpy
2// PR1421
3
4struct A {
5 char c;
6 int i;
7};
8
9struct B {
10 int c;
11 unsigned char x;
12};
13
14union U { struct A a; struct B b; };
15
16void check(union U *u, union U *v) {
17 *u = *v;
18}
19