SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

thread bool t = false;
bool m() {
  t = true;
  return bool(t);
}
void f() {
  uint v = uint(m());
}
program_source:4:13: error: program scope variable must reside in constant address space
thread bool t = false;
            ^
program_source:10:8: warning: unused variable 'v' [-Wunused-variable]
  uint v = uint(m());
       ^