SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

thread bool u = true;
void f() {
  half const v = half(u);
}
program_source:4:13: error: program scope variable must reside in constant address space
thread bool u = true;
            ^
program_source:6:14: warning: unused variable 'v' [-Wunused-variable]
  half const v = half(u);
             ^