RET

	PCALIGN	$16
cmp4:	// 4 - 7B
	CMP	R9,$4
	BLT	cmp2
	ANDCC	$3,R9,R9
	_LWBEX	(R0)(R5),R10
	_LWBEX	(R0)(R6),R11
	_LWBEX	(R9)(R5),R12
	_LWBEX	(R9)(R6),R14
	RLDIMI	$32,R10,$0,R12
	RLDIMI	$32,R11,$0,R14
	CMPU	R12,R14
	BR	cmp0

	PCALIGN $16
cmp2:	// 2 - 3B
	CMP	R9,$2
	BLT	cmp1
	ANDCC	$1,R9,R9
	_LHBEX	(R0)(R5),R10
	_LHBEX	(R0)(R6),R11
	_LHBEX	(R9)(R5),R12

	MOVBU	3(X12), X20
	MOVBU	4(X12), X22
	MOVBU	5(X12), X24
	MOVBU	6(X12), X28
	MOVBU	7(X12), X30
	BNE	X8, X9, cmp1a
	BNE	X15, X16, cmp1b
	BNE	X17, X18, cmp1c
	BNE	X19, X20, cmp1d
	BNE	X21, X22, cmp1e
	BNE	X23, X24, cmp1f
	BNE	X25, X28, cmp1g
	BNE	X29, X30, cmp1h
	ADD	$8, X10
	ADD	$8, X12
	SUB	$8, X5
	BGE	X5, X6, compare8_unaligned
	BEQZ	X5, cmp_len

check4_unaligned:

	// Shuffle X0 around so that each byte contains
	// the character we're looking for.
	MOVD AX, X0
	PUNPCKLBW X0, X0
	PUNPCKLBW X0, X0
	PSHUFL $0, X0, X0

	CMPQ BX, $16
	JLT small

	MOVQ SI, DI

	CMPQ BX, $32
	JA avx2
sse:
	LEAQ	-16(SI)(BX*1), AX	// AX = address of last 16 bytes
	JMP	sseloopentry

	PCALIGN $16
sseloop:
	// Move the next 16-byte chunk of the data into X1.

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package cmp provides types and functions related to comparing
// ordered values.
package cmp

// Ordered is a constraint that permits any ordered type: any type
// that supports the operators < <= >= >.
// If future releases of Go add new ordered types,

#else
tail:	// Count the last 0 - 31 bytes.
	CMP	R4, $16
	BLT	tail_8
	MOVD	(R3), R12
	MOVD	8(R3), R14
	CMPB	R12, R5, R12
	CMPB	R14, R5, R14
	POPCNTD	R12, R12
	POPCNTD	R14, R14
	ADD	R12, R18, R18
	ADD	R14, R18, R18
	ADD	$16, R3, R3
	ADD	$-16, R4, R4

tail_8:	// Count the remaining 0 - 15 bytes.
	CMP	R4, $8
	BLT	tail_4
	MOVD	(R3), R12
	CMPB	R12, R5, R12
	POPCNTD	R12, R12
	ADD	R12, R18, R18

//   b in DI
//   count in BX
// Output:
//   result in AX
TEXT memeqbody<>(SB),NOSPLIT,$0-0
	CMPQ	BX, $8
	JB	small
	CMPQ	BX, $64
	JB	bigloop
#ifndef hasAVX2
	CMPB	internal∕cpu·X86+const_offsetX86HasAVX2(SB), $1
	JE	hugeloop_avx2

	// 64 bytes at a time using xmm registers
	PCALIGN $16
hugeloop:
	CMPQ	BX, $64
	JB	bigloop
	MOVOU	(SI), X0
	MOVOU	(DI), X1
	MOVOU	16(SI), X2
	MOVOU	16(DI), X3

		t.Fatalf("Child's process group is not the child's process ID")
	}
}

func TestPgid(t *testing.T) {
	ppid, ppgrp := parent()

	cmd1 := create(t)

	cmd1.proc.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
	cmd1.Start()
	defer cmd1.Stop()

	cpid1, cpgrp1 := cmd1.Info()

	if cpid1 == ppid {
		t.Fatalf("Parent and child 1 have the same process ID")
	}

	if cpgrp1 == ppgrp {

TEXT runtime·asmstdcall(SB),NOSPLIT,$0
	MOVL	fn+0(FP), BX
	MOVL	SP, BP	// save stack pointer

	// SetLastError(0).
	MOVL	$0, 0x34(FS)

	MOVL	libcall_n(BX), CX

	// Fast version, do not store args on the stack.
	CMPL	CX, $0
	JE	docall

	// Copy args to the stack.
	MOVL	CX, AX
	SALL	$2, AX
	SUBL	AX, SP			// room for args
	MOVL	SP, DI
	MOVL	libcall_args(BX), SI
	CLD
	REP; MOVSL

docall:

#include "textflag.h"

TEXT ·Count(SB),NOSPLIT,$0-40
#ifndef hasPOPCNT
	CMPB	internal∕cpu·X86+const_offsetX86HasPOPCNT(SB), $1
	JEQ	2(PC)
	JMP	·countGeneric(SB)
#endif
	MOVQ	b_base+0(FP), SI
	MOVQ	b_len+8(FP), BX
	MOVB	c+24(FP), AL
	LEAQ	ret+32(FP), R8
	JMP	countbody<>(SB)

TEXT ·CountString(SB),NOSPLIT,$0-32
#ifndef hasPOPCNT
	CMPB	internal∕cpu·X86+const_offsetX86HasPOPCNT(SB), $1
	JEQ	2(PC)

	MOVL	dig+0(FP),	BP
	MOVL	p+4(FP),	SI
	MOVL	p_len+8(FP), DX
	SHRL	$6,		DX
	SHLL	$6,		DX

	LEAL	(SI)(DX*1),	DI
	MOVL	(0*4)(BP),	AX
	MOVL	(1*4)(BP),	BX
	MOVL	(2*4)(BP),	CX
	MOVL	(3*4)(BP),	DX

	CMPL	SI,		DI
	JEQ	end

	MOVL	DI,		16(SP)

loop:
	MOVL	AX,		0(SP)
	MOVL	BX,		4(SP)
	MOVL	CX,		8(SP)
	MOVL	DX,		12(SP)

	MOVL	(0*4)(SI),	DI
	MOVL	DX,		BP

	ROUND1(AX,BX,CX,DX, 1,0xd76aa478, 7);