SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

thread int t = 0;
int m() {
  t = 1;
  return int(t);
}
void f() {
  half v = half(m());
}
program_source:4:12: error: program scope variable must reside in constant address space
thread int t = 0;
           ^
program_source:10:8: warning: unused variable 'v' [-Wunused-variable]
  half v = half(m());
       ^