SKIP: FAILED

#include <metal_stdlib>
using namespace metal;
struct S {
  half3 v;
};

thread S P = {};
void f() {
  P.v = half3(1.0h, 2.0h, 3.0h);
  P.v[0u] = 1.0h;
  P.v[1u] = 2.0h;
  P.v[2u] = 3.0h;
}
program_source:7:10: error: program scope variable must reside in constant address space
thread S P = {};
         ^