#include <metal_stdlib>

using namespace metal;
void f() {
  float4x4 const m = float4x4(float4(1.0f, 1.0f, 1.0f, 1.0f), float4(1.0f, 1.0f, 1.0f, 1.0f), float4(1.0f, 1.0f, 1.0f, 1.0f), float4(1.0f, 1.0f, 1.0f, 1.0f));
  float4 const v1 = m[0];
  float const a = v1[0];
}