SKIP: FAILED

struct modf_result_vec2_f32 {
  float2 fract;
  float2 whole;
};


[numthreads(1, 1, 1)]
void main() {
  float2 runtime_in = float2(1.25f, 3.75f);
  modf_result_vec2_f32 res = {float2(0.25f, 0.75f), float2(1.0f, 3.0f)};
  modf_result_vec2_f32 v = modf(runtime_in);
  res = v;
  modf_result_vec2_f32 v_1 = {float2(0.25f, 0.75f), float2(1.0f, 3.0f)};
  res = v_1;
  float2 fract = res.fract;
  float2 whole = res.whole;
}

DXC validation failure:
hlsl.hlsl:11:28: error: use of undeclared identifier 'modf'
  modf_result_vec2_f32 v = modf(runtime_in);
                           ^


tint executable returned error: exit status 1