SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

thread half4x4 u = half4x4(half4(1.0h, 2.0h, 3.0h, 4.0h), half4(5.0h, 6.0h, 7.0h, 8.0h), half4(9.0h, 10.0h, 11.0h, 12.0h), half4(13.0h, 14.0h, 15.0h, 16.0h));
void f() {
  float4x4 v = float4x4(u);
}
program_source:4:16: error: program scope variable must reside in constant address space
thread half4x4 u = half4x4(half4(1.0h, 2.0h, 3.0h, 4.0h), half4(5.0h, 6.0h, 7.0h, 8.0h), half4(9.0h, 10.0h, 11.0h, 12.0h), half4(13.0h, 14.0h, 15.0h, 16.0h));
               ^
program_source:6:12: warning: unused variable 'v' [-Wunused-variable]
  float4x4 v = float4x4(u);
           ^