SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

thread int t = 0;
int4 m() {
  t = 1;
  return int4(t);
}
void f() {
  uint4 v = uint4(m());
}
program_source:4:12: error: program scope variable must reside in constant address space
thread int t = 0;
           ^
program_source:10:9: warning: unused variable 'v' [-Wunused-variable]
  uint4 v = uint4(m());
        ^