TESTQ	CX, CX
	JZ	sigtramp        // g.m.curg == nil
	MOVQ	g_syscallsp(CX), CX
	TESTQ	CX, CX
	JZ	sigtramp        // g.m.curg.syscallsp == 0
	MOVQ	m_cgoCallers(AX), R8
	TESTQ	R8, R8
	JZ	sigtramp        // g.m.cgoCallers == nil
	MOVL	m_cgoCallersUse(AX), CX
	TESTL	CX, CX
	JNZ	sigtramp	// g.m.cgoCallersUse != 0

	// Jump to a function in runtime/cgo.
	// That function, written in C, will call the user's traceback

		if x.mode != invalid && x.mode != constant_ {
			check.hasCallOrRecv = true
		}
		return predeclaredFuncs[id].kind
	}

	// ordinary function/method call
	// signature may be generic
	cgocall := x.mode == cgofunc

	// a type parameter may be "called" if all types have the same signature
	sig, _ := coreType(x.typ).(*Signature)
	if sig == nil {

	MOV	fn+0(FP), X5
	MOV	arg+8(FP), X10
	JALR	RA, (X5)
	RET

// func asmcgocall(fn, arg unsafe.Pointer) int32
// Call fn(arg) on the scheduler stack,
// aligned appropriately for the gcc ABI.
// See cgocall.go for more details.
TEXT ·asmcgocall(SB),NOSPLIT,$0-20
	MOV	fn+0(FP), X5
	MOV	arg+8(FP), X10

	MOV	X2, X8	// save original stack pointer
	MOV	g, X9

	// Figure out if we need to switch to m->g0 stack.

	CMPBEQ	R1, $0, 2(PC)
	BL	runtime·abort(SB)
	RET

// func asmcgocall(fn, arg unsafe.Pointer) int32
// Call fn(arg) on the scheduler stack,
// aligned appropriately for the gcc ABI.
// See cgocall.go for more details.
TEXT ·asmcgocall(SB),NOSPLIT,$0-20
	// R2 = argc; R3 = argv; R11 = temp; R13 = g; R15 = stack pointer
	// C TLS base pointer in AR0:AR1
	MOVD	fn+0(FP), R3
	MOVD	arg+8(FP), R4

// from Go code without going all the way through cgo.
// First, it's much faster (up to 50% speedup for real Go programs).
// Second, it eliminates race-related special cases from cgocall and scheduler.
// Third, in long-term it will allow to remove cyclic runtime/race dependency on cmd/go.

// A brief recap of the amd64 calling convention.
// Arguments are passed in DI, SI, DX, CX, R8, R9, the rest is on stack.

	MOVD	g_syscallsp(R7), R7
	CMP	$0, R7
	BEQ	sigtramp    // g.m.curg.syscallsp == 0
	MOVD	m_cgoCallers(R6), R7 // R7 is the fifth arg in C calling convention.
	CMP	$0, R7
	BEQ	sigtramp    // g.m.cgoCallers == nil
	MOVW	m_cgoCallersUse(R6), R8
	CMPW	$0, R8
	BNE	sigtramp    // g.m.cgoCallersUse != 0

	// Jump to a function in runtime/cgo.
	// That function, written in C, will call the user's traceback

// If the signal handler receives a SIGPROF signal on a non-Go thread,
// it tries to collect a traceback into sigprofCallers.
// sigprofCallersUse is set to non-zero while sigprofCallers holds a traceback.
var sigprofCallers cgoCallers
var sigprofCallersUse uint32

// sigprofNonGo is called if we receive a SIGPROF signal on a non-Go thread,
// and the signal handler collected a stack trace in sigprofCallers.

	BEQ	R19, 2(PC)
	JAL	runtime·abort(SB)
	RET

// func asmcgocall(fn, arg unsafe.Pointer) int32
// Call fn(arg) on the scheduler stack,
// aligned appropriately for the gcc ABI.
// See cgocall.go for more details.
TEXT ·asmcgocall(SB),NOSPLIT,$0-20
	MOVV	fn+0(FP), R25
	MOVV	arg+8(FP), R4

	MOVV	R3, R12	// save original stack pointer
	MOVV	g, R13

	BEQ	R1, 2(PC)
	JAL	runtime·abort(SB)
	RET

// func asmcgocall(fn, arg unsafe.Pointer) int32
// Call fn(arg) on the scheduler stack,
// aligned appropriately for the gcc ABI.
// See cgocall.go for more details.
TEXT ·asmcgocall(SB),NOSPLIT,$0-12
	MOVW	fn+0(FP), R25
	MOVW	arg+4(FP), R4

	MOVW	R29, R3	// save original stack pointer
	MOVW	g, R2

		if x.mode != invalid && x.mode != constant_ {
			check.hasCallOrRecv = true
		}
		return predeclaredFuncs[id].kind
	}

	// ordinary function/method call
	// signature may be generic
	cgocall := x.mode == cgofunc

	// a type parameter may be "called" if all types have the same signature
	sig, _ := coreType(x.typ).(*Signature)
	if sig == nil {