SKIP: FAILED

[numthreads(1, 1, 1)]
void unused_entry_point() {
  return;
}

static matrix<float16_t, 4, 4> u = matrix<float16_t, 4, 4>(vector<float16_t, 4>(float16_t(1.0h), float16_t(2.0h), float16_t(3.0h), float16_t(4.0h)), vector<float16_t, 4>(float16_t(5.0h), float16_t(6.0h), float16_t(7.0h), float16_t(8.0h)), vector<float16_t, 4>(float16_t(9.0h), float16_t(10.0h), float16_t(11.0h), float16_t(12.0h)), vector<float16_t, 4>(float16_t(13.0h), float16_t(14.0h), float16_t(15.0h), float16_t(16.0h)));

void f() {
  float4x4 v = float4x4(u);
}
FXC validation failure:
D:\Projects\RampUp\dawn\test\tint\expressions\type_conv\Shader@0x0000024F4DC87730(6,15-23): error X3000: syntax error: unexpected token 'float16_t'