SKIP: FAILED

#include <metal_stdlib>
using namespace metal;
struct S {
  float3 v;
};

thread S P = {};
void f() {
  P.v = float3(1.0f, 2.0f, 3.0f);
  P.v[0u] = 1.0f;
  P.v[1u] = 2.0f;
  P.v[2u] = 3.0f;
}
program_source:7:10: error: program scope variable must reside in constant address space
thread S P = {};
         ^