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