c.int32 = c.Ident("int32")
	c.int64 = c.Ident("int64")
	c.uint8 = c.Ident("uint8")
	c.uint16 = c.Ident("uint16")
	c.uint32 = c.Ident("uint32")
	c.uint64 = c.Ident("uint64")
	c.uintptr = c.Ident("uintptr")
	c.float32 = c.Ident("float32")
	c.float64 = c.Ident("float64")
	c.complex64 = c.Ident("complex64")
	c.complex128 = c.Ident("complex128")
	c.void = c.Ident("void")
	c.string = c.Ident("string")

//
//	b1:
//	  v4 = ArgIntReg <uintptr> {s+8} [0] : BX
//	  v5 = ArgIntReg <int> {used} [0] : CX
//
// While this is an accurate picture of the live incoming params,
// we also want to have debug locations for non-live params (or
// their non-live pieces), e.g. something like
//
//	b1:
//	  v9 = ArgIntReg <*uint8> {s+0} [0] : AX
//	  v4 = ArgIntReg <uintptr> {s+8} [0] : BX
//	  v5 = ArgIntReg <int> {used} [0] : CX

	fmt.Fprint(fgo2, "//go:cgo_unsafe_args\n")
	conf.Fprint(fgo2, fset, d)
	fmt.Fprint(fgo2, " {\n")

	// NOTE: Using uintptr to hide from escape analysis.
	arg := "0"
	if len(paramnames) > 0 {
		arg = "uintptr(unsafe.Pointer(&p0))"
	} else if !void {
		arg = "uintptr(unsafe.Pointer(&r1))"
	}

	noCallback := p.noCallbacks[n.C]
	if noCallback {
		// disable cgocallback, will check it in runtime.

		2: {"-", 10, ""},
		3: {"gopher", 0, ""},
		4: {"-", -1, "negative"},
		5: {"--", -102, "negative"},
		6: {string(make([]byte, 255)), int((^uint(0))/255 + 1), "overflow"},
	})

	const is64Bit = 1<<(^uintptr(0)>>63)/2 != 0
	if !is64Bit {
		return
	}

	runTestCases("64-bit", []testCase{
		0: {"-", maxInt, "out of range"},
	})
}

func runesEqual(a, b []rune) bool {

	// result: (Int64Make (Load <typ.UInt32> (OffPtr <typ.UInt32Ptr> [4] ptr) mem) (Load <typ.UInt32> ptr mem))
	for {
		t := v.Type
		ptr := v_0
		mem := v_1
		if !(is64BitInt(t) && !config.BigEndian && !t.IsSigned()) {
			break
		}
		v.reset(OpInt64Make)
		v0 := b.NewValue0(v.Pos, OpLoad, typ.UInt32)
		v1 := b.NewValue0(v.Pos, OpOffPtr, typ.UInt32Ptr)
		v1.AuxInt = int64ToAuxInt(4)
		v1.AddArg(ptr)

}

// IsUnsafePtr reports whether t is an unsafe pointer.
func (t *Type) IsUnsafePtr() bool {
	return t.kind == TUNSAFEPTR
}

// IsUintptr reports whether t is a uintptr.
func (t *Type) IsUintptr() bool {
	return t.kind == TUINTPTR
}

// IsPtrShaped reports whether t is represented by a single machine pointer.
// In addition to regular Go pointer types, this includes map, channel, and