// Copyright 2016 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.

// Based on dim_amd64.s

#include "textflag.h"

#define PosInf 0x7FF0000000000000
#define NaN    0x7FF8000000000001
#define NegInf 0xFFF0000000000000

// func ·Max(x, y float64) float64
TEXT ·archMax(SB),NOSPLIT,$0
	// +Inf special cases
	MOVD    $PosInf, R4
	MOVD    x+0(FP), R8

// Copyright 2014 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.

//go:build linux && (ppc64 || ppc64le)

.file "gcc_linux_ppc64x.S"

// Define a frame which has no argument space, but is compatible with
// a call into a Go ABI. We allocate 32B to match FIXED_FRAME with
// similar semantics, except we store the backchain pointer, not the

// Copyright 2019 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.

.file "gcc_aix_ppc64.S"

/*
 * void crosscall_ppc64(void (*fn)(void), void *g)
 *
 * Calling into the gc tool chain, where all registers are caller save.
 * Called from standard ppc64 C ABI, where r2, r14-r31, f14-f31 are
 * callee-save, so they must be saved explicitly.

	VDUP	R22, V11.D2           // cb0e084e
	VMOV	V2.B16, V4.B16        // 441ca24e
	VMOV	V20.S[0], V20         // 9406045e
	VDUP	V20.S[0], V20         // 9406045e
	VMOV	V12.D[0], V12.D[1]    // 8c05186e
	VMOV	V10.S[0], V12.S[1]    // 4c050c6e
	VMOV	V9.H[0], V12.H[1]     // 2c05066e
	VMOV	V8.B[0], V12.B[1]     // 0c05036e
	VMOV	V8.B[7], V4.B[8]      // 043d116e

// CBZ
again:
	CBZ	R1, again // CBZ R1

//   R0: haystack
//   R1: length of haystack
//   R2: needle
//   R3: length of needle (2 <= len <= 32)
//   R9: address to put result
TEXT indexbody<>(SB),NOSPLIT,$0-56
	// main idea is to load 'sep' into separate register(s)
	// to avoid repeatedly re-load it again and again
	// for sebsequent substring comparisons
	SUB	R3, R1, R4
	// R4 contains the start of last substring for comparison
	ADD	R0, R4, R4
	ADD	$1, R0, R8

	CMP	$8, R3

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build libfuzzer

#include "go_asm.h"
#include "textflag.h"

// Based on race_arm64.s; see commentary there.

#define RARG0 R0
#define RARG1 R1
#define RARG2 R2
#define RARG3 R3

#define REPEAT_2(a) a a
#define REPEAT_8(a) REPEAT_2(REPEAT_2(REPEAT_2(a)))

// Inferno's libkern/memmove-386.s
// https://bitbucket.org/inferno-os/inferno-os/src/master/libkern/memmove-386.s
//
//         Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
//         Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).  All rights reserved.
//         Portions Copyright 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy

// func errstr() string
// Only used by package syscall.
// Grab error string due to a syscall made
// in entersyscall mode, without going
// through the allocator (issue 4994).
// See ../syscall/asm_plan9_386.s:/·Syscall/
TEXT runtime·errstr(SB),NOSPLIT,$8-8
	get_tls(AX)
	MOVL	g(AX), BX
	MOVL	g_m(BX), BX
	MOVL	(m_mOS+mOS_errstr)(BX), CX
	MOVL	CX, 0(SP)
	MOVL	$ERRMAX, 4(SP)
	CALL	errstr<>(SB)

	EXTR	$1, t1, t2, y1
	EXTR	$1, t2, t3, y2
	EXTR	$1, t3, hlp0, y3
	STy(y3out)

	LDx(x1in)
	LDy(s)
	CALL	p256MulInternal<>(SB)
	STy(s)
	p256MulBy2Inline
	STx(tmp)

	LDx(m)
	CALL	p256SqrInternal<>(SB)
	LDx(tmp)
	CALL	p256SubInternal<>(SB)

	STx(x3out)

	LDy(s)
	CALL	p256SubInternal<>(SB)

	LDy(m)
	CALL	p256MulInternal<>(SB)

	LDx(y3out)

Junxian Zhu <******@****.***> 1691045041 +0800