SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

thread half2x4 u = half2x4(half4(1.0h, 2.0h, 3.0h, 4.0h), half4(5.0h, 6.0h, 7.0h, 8.0h));
void f() {
  float2x4 v = float2x4(u);
}
program_source:4:16: error: program scope variable must reside in constant address space
thread half2x4 u = half2x4(half4(1.0h, 2.0h, 3.0h, 4.0h), half4(5.0h, 6.0h, 7.0h, 8.0h));
               ^
program_source:6:12: warning: unused variable 'v' [-Wunused-variable]
  float2x4 v = float2x4(u);
           ^