// Copyright 2022 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 loong64

import (
	"cmd/internal/objabi"
	"cmd/internal/sys"
	"cmd/link/internal/ld"
	"cmd/link/internal/loader"
	"cmd/link/internal/sym"
	"debug/elf"
	"log"
)

func gentext(ctxt *ld.Link, ldr *loader.Loader) {
	initfunc, addmoduledata := ld.PrepareAddmoduledata(ctxt)

// Copyright 2022 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 loong64

package atomic

import "unsafe"

//go:noescape
func Xadd(ptr *uint32, delta int32) uint32

//go:noescape
func Xadd64(ptr *uint64, delta int64) uint64

//go:noescape
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr

//go:noescape

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

// Hashing algorithm inspired by
// wyhash: https://github.com/wangyi-fudan/wyhash

//go:build amd64 || arm64 || loong64 || mips64 || mips64le || ppc64 || ppc64le || riscv64 || s390x || wasm

package runtime

import (
	"runtime/internal/math"
	"unsafe"
)

const (
	m5 = 0x1d8e4e27c47d124f
)

}

// common architecture word sizes and alignments
var gcArchSizes = map[string]*gcSizes{
	"386":      {4, 4},
	"amd64":    {8, 8},
	"amd64p32": {4, 8},
	"arm":      {4, 4},
	"arm64":    {8, 8},
	"loong64":  {8, 8},
	"mips":     {4, 4},
	"mipsle":   {4, 4},
	"mips64":   {8, 8},
	"mips64le": {8, 8},
	"ppc64":    {8, 8},
	"ppc64le":  {8, 8},
	"riscv64":  {8, 8},
	"s390x":    {8, 8},
	"sparc64":  {8, 8},

}

// common architecture word sizes and alignments
var gcArchSizes = map[string]*gcSizes{
	"386":      {4, 4},
	"amd64":    {8, 8},
	"amd64p32": {4, 8},
	"arm":      {4, 4},
	"arm64":    {8, 8},
	"loong64":  {8, 8},
	"mips":     {4, 4},
	"mipsle":   {4, 4},
	"mips64":   {8, 8},
	"mips64le": {8, 8},
	"ppc64":    {8, 8},
	"ppc64le":  {8, 8},
	"riscv64":  {8, 8},
	"s390x":    {8, 8},
	"sparc64":  {8, 8},

				prog.From = a[0]
				prog.Reg = p.getRegister(prog, op, &a[1])
				break
			}
		} else if p.arch.Family == sys.Loong64 {
			if arch.IsLoong64CMP(op) {
				prog.From = a[0]
				prog.Reg = p.getRegister(prog, op, &a[1])
				break
			}

			if arch.IsLoong64RDTIME(op) {
				// The Loong64 RDTIME family of instructions is a bit special,
				// in that both its register operands are outputs
				prog.To = a[0]

				// -static in CGO_LDFLAGS triggers a different code path
				// than -static in -extldflags, so test both.
				// See issue #16651.
				if goarch != "loong64" {
					// TODO(#56623): Why does this fail on loong64?
					cgoTest("auto-static", "test", "auto", "static", staticCheck)
				}
			}

			// PIE linking tests
			if t.supportedBuildmode("pie") && !disablePIE {

	{12, loong64.REG_R13, 9, "R13"},
	{13, loong64.REG_R14, 10, "R14"},
	{14, loong64.REG_R15, 11, "R15"},
	{15, loong64.REG_R16, 12, "R16"},
	{16, loong64.REG_R17, 13, "R17"},
	{17, loong64.REG_R18, 14, "R18"},
	{18, loong64.REG_R19, 15, "R19"},
	{19, loong64.REG_R20, 16, "R20"},
	{20, loong64.REG_R21, 17, "R21"},
	{21, loong64.REGG, -1, "g"},
	{22, loong64.REG_R23, 18, "R23"},

	CMPEQD	F4, R5			// a010220c

	RDTIMELW R4, R0			// 80600000
	RDTIMEHW R4, R0			// 80640000
	RDTIMED  R4, R5			// 85680000

	MOVV    FCC0, R4		// 04dc1401
	MOVV    R4, FCC0		// 80d81401

	// Loong64 atomic memory access instructions
	AMSWAPB		R14, (R13), R12 // ac395c38
	AMSWAPH		R14, (R13), R12 // acb95c38
	AMSWAPW		R14, (R13), R12 // ac396038
	AMSWAPV		R14, (R13), R12 // acb96038

var ppcPIENeed = []string{
	"BR",
	"CALL",
	"RET",
}

var ppcGnuNeed = []string{
	"mflr",
	"lbz",
	"beq",
}

func mustHaveDisasm(t *testing.T) {
	switch runtime.GOARCH {
	case "loong64":
		t.Skipf("skipping on %s", runtime.GOARCH)
	case "mips", "mipsle", "mips64", "mips64le":
		t.Skipf("skipping on %s, issue 12559", runtime.GOARCH)
	case "riscv64":