c, d *byte
	}

	type test struct {
		rcvr, typ                  Type
		size, argsize, retOffset   uintptr
		stack, gc, inRegs, outRegs []byte // pointer bitmap: 1 is pointer, 0 is scalar
		intRegs, floatRegs         int
		floatRegSize               uintptr
	}
	tests := []test{
		{
			typ:       ValueOf(func(a, b string) string { return "" }).Type(),
			size:      6 * goarch.PtrSize,