cbuffer cbuffer_u : register(b0, space0) {
  uint4 u[4];
};

void a(float2x2 a_1[4]) {
}

void b(float2x2 m) {
}

void c(float2 v) {
}

void d(float f_1) {
}

float2x2 tint_symbol_1(uint4 buffer[4], uint offset) {
  const uint scalar_offset = ((offset + 0u)) / 4;
  uint4 ubo_load = buffer[scalar_offset / 4];
  const uint scalar_offset_1 = ((offset + 8u)) / 4;
  uint4 ubo_load_1 = buffer[scalar_offset_1 / 4];
  return float2x2(asfloat(((scalar_offset & 2) ? ubo_load.zw : ubo_load.xy)), asfloat(((scalar_offset_1 & 2) ? ubo_load_1.zw : ubo_load_1.xy)));
}

typedef float2x2 tint_symbol_ret[4];
tint_symbol_ret tint_symbol(uint4 buffer[4], uint offset) {
  float2x2 arr[4] = (float2x2[4])0;
  {
    [loop] for(uint i = 0u; (i < 4u); i = (i + 1u)) {
      arr[i] = tint_symbol_1(buffer, (offset + (i * 16u)));
    }
  }
  return arr;
}

[numthreads(1, 1, 1)]
void f() {
  a(tint_symbol(u, 0u));
  b(tint_symbol_1(u, 16u));
  c(asfloat(u[1].xy).yx);
  d(asfloat(u[1].xy).yx.x);
  return;
}
