#include <metal_stdlib>

using namespace metal;
constant float4x4 m = float4x4(float4(0.0f, 1.0f, 2.0f, 3.0f), float4(4.0f, 5.0f, 6.0f, 7.0f), float4(8.0f, 9.0f, 10.0f, 11.0f), float4(12.0f, 13.0f, 14.0f, 15.0f));

float4x4 f() {
  float4x4 const m_1 = float4x4(float4(0.0f, 1.0f, 2.0f, 3.0f), float4(4.0f, 5.0f, 6.0f, 7.0f), float4(8.0f, 9.0f, 10.0f, 11.0f), float4(12.0f, 13.0f, 14.0f, 15.0f));
  return float4x4(float4(0.0f, 1.0f, 2.0f, 3.0f), float4(4.0f, 5.0f, 6.0f, 7.0f), float4(8.0f, 9.0f, 10.0f, 11.0f), float4(12.0f, 13.0f, 14.0f, 15.0f));
}