}
		if x == 20 {
			continue L1 /* ERROR "invalid continue label L1" */
		}
		if x == 21 {
			goto L1
		}
	}
}

// Additional tests not in the original files.

func f2() {
L1 /* ERROR "label L1 declared and not used" */ :
	if x == 0 {
		for {
			continue L1 /* ERROR "invalid continue label L1" */
		}
	}
}

func f3() {
L1:
L2:

//
// [underlying type]: https://go.dev/ref/spec#Underlying_types.
func (a *Alias) Underlying() Type { return unalias(a).Underlying() }

// Origin returns the generic Alias type of which a is an instance.
// If a is not an instance of a generic alias, Origin returns a.
func (a *Alias) Origin() *Alias { return a.orig }

// TypeParams returns the type parameters of the alias type a, or nil.

		left := (last << (4 + ksRotations[i])) >> 4
		right := (last << 4) >> (32 - ksRotations[i])
		out[i] = left | right
		last = out[i]
	}
	return
}

// creates 16 56-bit subkeys from the original key.
func (c *desCipher) generateSubkeys(keyBytes []byte) {
	feistelBoxOnce.Do(initFeistelBox)

	// apply PC1 permutation to key
	key := byteorder.BeUint64(keyBytes)

// Original source:
//	http://www.zorinaq.com/papers/md5-amd64.html
//	http://www.zorinaq.com/papers/md5-amd64.tar.bz2
//
// MD5 optimized for ppc64le using Go's assembler for
// ppc64le, based on md5block_amd64.s implementation by
// the Go authors.
//
// Author: Marc Bevand <bevand_m (at) epita.fr>
// Licence: I hereby disclaim the copyright on this code and place it
// in the public domain.

//go:build (ppc64 || ppc64le) && !purego

	m1, ok := zork[e.from]
	if !ok {
		panic("bad edge")
	}
	m2, ok := zork[e.to]
	if !ok {
		panic("bad edge")
	}
	return m1, m2
}

// The first maze in Zork. Room indexes based on original Fortran data file.
// You are in a maze of twisty little passages, all alike.
var zork = map[int]mazeRoom{
	11: {exits: [10]int{north: 11, south: 12, east: 14}}, // west to Troll Room

	MOVD	p_len+16(FP), R2
	MOVD	·_K+0(SB), R3

	// long enough to prefetch
	PRFM	(R3), PLDL3KEEP
	// load digest
	VLD1	(R0), [V8.D2, V9.D2, V10.D2, V11.D2]
loop:
	// load digest in V0-V3 keeping original in V8-V11
	VMOV	V8.B16, V0.B16
	VMOV	V9.B16, V1.B16
	VMOV	V10.B16, V2.B16
	VMOV	V11.B16, V3.B16

	// load message data in V12-V19
	VLD1.P	64(R1), [V12.D2, V13.D2, V14.D2, V15.D2]

//	uppercase mapping bytes
//	titlecase mapping bytes
//	closure mapping bytes (for NFKC_Casefold). (TODO)
//
// Fallbacks:
//
//	missing fold  -> lower
//	missing title -> upper
//	all missing   -> original rune
//
// exceptions starts with a dummy byte to enforce that there is no zero index
// value.
const (
	lengthMask = 0x07
	lengthBits = 3
	noChange   = 0
)

// References to generated trie.

// Original source:
//	http://www.zorinaq.com/papers/md5-amd64.html
//	http://www.zorinaq.com/papers/md5-amd64.tar.bz2
//
// Translated from Perl generating GNU assembly into
// #defines generating 8a assembly, and adjusted for 386,
// by the Go Authors.

//go:build !purego

#include "textflag.h"

// MD5 optimized for AMD64.
//
// Author: Marc Bevand <bevand_m (at) epita.fr>

//
// [underlying type]: https://go.dev/ref/spec#Underlying_types.
func (a *Alias) Underlying() Type { return unalias(a).Underlying() }

// Origin returns the generic Alias type of which a is an instance.
// If a is not an instance of a generic alias, Origin returns a.
func (a *Alias) Origin() *Alias { return a.orig }

// TypeParams returns the type parameters of the alias type a, or nil.

		Header: Header{
			OS: 255, // unknown
		},
		w:          w,
		level:      level,
		compressor: compressor,
	}
}

// Reset discards the [Writer] z's state and makes it equivalent to the
// result of its original state from [NewWriter] or [NewWriterLevel], but
// writing to w instead. This permits reusing a [Writer] rather than
// allocating a new one.
func (z *Writer) Reset(w io.Writer) {
	z.init(w, z.level)
}