// license that can be found in the LICENSE file.

package main

import (
	"runtime"
	"runtime/debug"
	"sync/atomic"
)

func init() {
	register("AsyncPreempt", AsyncPreempt)
}

func AsyncPreempt() {
	// Run with just 1 GOMAXPROCS so the runtime is required to
	// use scheduler preemption.
	runtime.GOMAXPROCS(1)
	// Disable GC so we have complete control of what we're testing.

}

//go:generate go run mkpreempt.go

// asyncPreempt saves all user registers and calls asyncPreempt2.
//
// When stack scanning encounters an asyncPreempt frame, it scans that
// frame and its parent frame conservatively.
//
// asyncPreempt is implemented in assembly.
func asyncPreempt()

//go:nosplit
func asyncPreempt2() {
	gp := getg()
	gp.asyncSafePoint = true
	if gp.preemptStop {

// Code generated by mkpreempt.go; DO NOT EDIT.

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

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	// No async preemption on wasm

// Code generated by mkpreempt.go; DO NOT EDIT.

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

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	PUSHFL
	ADJSP $156
	NOP SP
	MOVL AX, 0(SP)
	MOVL CX, 4(SP)
	MOVL DX, 8(SP)
	MOVL BX, 12(SP)
	MOVL BP, 16(SP)
	MOVL SI, 20(SP)
	MOVL DI, 24(SP)
	#ifndef GO386_softfloat
	MOVUPS X0, 28(SP)
	MOVUPS X1, 44(SP)
	MOVUPS X2, 60(SP)
	MOVUPS X3, 76(SP)
	MOVUPS X4, 92(SP)

// Code generated by mkpreempt.go; DO NOT EDIT.

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

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	IPM R10
	MOVD R14, -248(R15)
	ADD $-248, R15
	MOVW R10, 8(R15)
	STMG R0, R12, 16(R15)
	FMOVD F0, 120(R15)
	FMOVD F1, 128(R15)
	FMOVD F2, 136(R15)
	FMOVD F3, 144(R15)
	FMOVD F4, 152(R15)
	FMOVD F5, 160(R15)
	FMOVD F6, 168(R15)
	FMOVD F7, 176(R15)
	FMOVD F8, 184(R15)
	FMOVD F9, 192(R15)

// Code generated by mkpreempt.go; DO NOT EDIT.

#include "go_asm.h"
#include "asm_amd64.h"
#include "textflag.h"

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	PUSHQ BP
	MOVQ SP, BP
	// Save flags before clobbering them
	PUSHFQ
	// obj doesn't understand ADD/SUB on SP, but does understand ADJSP
	ADJSP $368
	// But vet doesn't know ADJSP, so suppress vet stack checking
	NOP SP
	MOVQ AX, 0(SP)
	MOVQ CX, 8(SP)
	MOVQ DX, 16(SP)

package objabi

import (
	"internal/abi"
	"strings"
)

var funcIDs = map[string]abi.FuncID{
	"abort":              abi.FuncID_abort,
	"asmcgocall":         abi.FuncID_asmcgocall,
	"asyncPreempt":       abi.FuncID_asyncPreempt,
	"cgocallback":        abi.FuncID_cgocallback,
	"corostart":          abi.FuncID_corostart,
	"debugCallV2":        abi.FuncID_debugCallV2,
	"gcBgMarkWorker":     abi.FuncID_gcBgMarkWorker,

// Code generated by mkpreempt.go; DO NOT EDIT.

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

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	MOVW.W R14, -188(R13)
	MOVW R0, 4(R13)
	MOVW R1, 8(R13)
	MOVW R2, 12(R13)
	MOVW R3, 16(R13)
	MOVW R4, 20(R13)
	MOVW R5, 24(R13)
	MOVW R6, 28(R13)
	MOVW R7, 32(R13)
	MOVW R8, 36(R13)
	MOVW R9, 40(R13)
	MOVW R11, 44(R13)
	MOVW R12, 48(R13)
	MOVW CPSR, R0
	MOVW R0, 52(R13)

// Code generated by mkpreempt.go; DO NOT EDIT.

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

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	MOVD R30, -496(RSP)
	SUB $496, RSP
	MOVD R29, -8(RSP)
	SUB $8, RSP, R29
	#ifdef GOOS_ios
	MOVD R30, (RSP)
	#endif
	STP (R0, R1), 8(RSP)
	STP (R2, R3), 24(RSP)
	STP (R4, R5), 40(RSP)
	STP (R6, R7), 56(RSP)
	STP (R8, R9), 72(RSP)
	STP (R10, R11), 88(RSP)
	STP (R12, R13), 104(RSP)

// Code generated by mkpreempt.go; DO NOT EDIT.

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

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	MOVV R1, -480(R3)
	SUBV $480, R3
	MOVV R4, 8(R3)
	MOVV R5, 16(R3)
	MOVV R6, 24(R3)
	MOVV R7, 32(R3)
	MOVV R8, 40(R3)
	MOVV R9, 48(R3)
	MOVV R10, 56(R3)
	MOVV R11, 64(R3)
	MOVV R12, 72(R3)
	MOVV R13, 80(R3)
	MOVV R14, 88(R3)
	MOVV R15, 96(R3)
	MOVV R16, 104(R3)
	MOVV R17, 112(R3)