package main

import "testing"

type T1 struct {
	pre  [8]byte
	mid  [1]byte
	post [8]byte
}

//go:noinline
func t1copy_ssa(y, x *[1]byte) {
	*y = *x
}
func testCopy1(t *testing.T) {
	a := T1{[8]byte{201, 202, 203, 204, 205, 206, 207, 208}, [1]byte{0}, [8]byte{211, 212, 213, 214, 215, 216, 217, 218}}
	x := [1]byte{100}
	t1copy_ssa(&a.mid, &x)

	f.Add([]byte(`-lextra\ fun\ arg\\`))
	f.Add([]byte("\textra     whitespace\r"))
	f.Add([]byte("     \r      "))
	f.Add([]byte(`"-r:foo" "-L/usr/white space/lib" "-lfoo bar" "-lbar baz"`))
	f.Add([]byte(`"-lextra fun arg\\"`))
	f.Add([]byte(`"     \r\n\      "`))
	f.Add([]byte(`""`))
	f.Add([]byte(``))
	f.Add([]byte(`"\\"`))
	f.Add([]byte(`"\x"`))
	f.Add([]byte(`"\\x"`))
	f.Add([]byte(`'\\'`))
	f.Add([]byte(`'\x'`))

// interface type assertions x.(T)
func assertE2I(inter *byte, typ *byte) *byte
func assertE2I2(inter *byte, typ *byte) *byte
func panicdottypeE(have, want, iface *byte)
func panicdottypeI(have, want, iface *byte)
func panicnildottype(want *byte)
func typeAssert(s *byte, typ *byte) *byte

// interface switches
func interfaceSwitch(s *byte, t *byte) (int, *byte)

	{"TrimRight", []byte("☺"), "☺", []byte{}},
	{"TrimPrefix", nil, "", nil},
	{"TrimPrefix", []byte{}, "", []byte{}},
	{"TrimPrefix", []byte{'a'}, "a", []byte{}},
	{"TrimPrefix", []byte("☺"), "☺", []byte{}},
	{"TrimSuffix", nil, "", nil},
	{"TrimSuffix", []byte{}, "", []byte{}},
	{"TrimSuffix", []byte{'a'}, "a", []byte{}},
	{"TrimSuffix", []byte("☺"), "☺", []byte{}},
}

func pbit32(b []byte, v uint32) []byte {
	b[0] = byte(v)
	b[1] = byte(v >> 8)
	b[2] = byte(v >> 16)
	b[3] = byte(v >> 24)
	return b[4:]
}

// pbit64 copies the 64-bit number v to b in little-endian order and returns the remaining slice of b.
func pbit64(b []byte, v uint64) []byte {
	b[0] = byte(v)
	b[1] = byte(v >> 8)
	b[2] = byte(v >> 16)
	b[3] = byte(v >> 24)
	b[4] = byte(v >> 32)

package p

var (
	i0 uint8
	b0 byte

	i1 *uint8
	b1 *byte

	i2 **uint8
	b2 **byte

	i3 ***uint8
	b3 ***byte

	i4 ****uint8
	b4 ****byte

	i5 *****uint8
	b5 *****byte

	i6 ******uint8
	b6 ******byte

	i7 *******uint8
	b7 *******byte

	i8 ********uint8
	b8 ********byte

	*b = block{}
}

type headerV7 [blockSize]byte

func (h *headerV7) name() []byte     { return h[000:][:100] }
func (h *headerV7) mode() []byte     { return h[100:][:8] }
func (h *headerV7) uid() []byte      { return h[108:][:8] }
func (h *headerV7) gid() []byte      { return h[116:][:8] }
func (h *headerV7) size() []byte     { return h[124:][:12] }
func (h *headerV7) modTime() []byte  { return h[136:][:12] }

	{"append", `var s []int; _ = (append)(s, 0)`, `func([]int, ...int) []int`},
	{"append", `var s []byte; _ = ((append))(s, 0)`, `func([]byte, ...byte) []byte`},
	{"append", `var s []byte; _ = append(s, "foo"...)`, `func([]byte, string...) []byte`},
	{"append", `type T []byte; var s T; var str string; _ = append(s, str...)`, `func(p.T, string...) p.T`},
	{"append", `type T []byte; type U string; var s T; var str U; _ = append(s, str...)`, `func(p.T, p.U...) p.T`},

		// type for test
		fmt.Fprintf(w, "type Z%d struct {\n", s)
		fmt.Fprintf(w, "  pre [8]byte\n")
		fmt.Fprintf(w, "  mid [%d]byte\n", s)
		fmt.Fprintf(w, "  post [8]byte\n")
		fmt.Fprintf(w, "}\n")

		// function being tested
		fmt.Fprintf(w, "//go:noinline\n")
		fmt.Fprintf(w, "func zero%d_ssa(x *[%d]byte) {\n", s, s)
		fmt.Fprintf(w, "  *x = [%d]byte{}\n", s)
		fmt.Fprintf(w, "}\n")

		// testing harness

type T1 struct {
	x          float32
	a, b, c, d int16 // memequal64
}
type T2 struct {
	x          float32
	a, b, c, d int32 // memequal128
}

type A2 [2]byte // eq uses a 2-byte load
type A4 [4]byte // eq uses a 4-byte load
type A8 [8]byte // eq uses an 8-byte load

//go:noinline
func cmpT1(p, q *T1) {
	if *p != *q {
		panic("comparison test wrong")
	}
}

//go:noinline
func cmpT2(p, q *T2) {