* Called from standard s390x C ABI, where r6-r13, r15, and f8-f15 are
 * callee-save, so they must be saved explicitly.
 */
.globl crosscall_s390x
crosscall_s390x:
	/* save r6-r15 in the register save area of the calling function */
	stmg    %r6, %r15, 48(%r15)

	/* allocate 64 bytes of stack space to save f8-f15 */
	lay     %r15, -64(%r15)

	/* save callee-saved floating point registers */
	std     %f8, 0(%r15)
	std     %f9, 8(%r15)

        val condition = firLoop.condition as? FirFunctionCall
        val iterator = ******@****.*** {
            val callee = (condition?.explicitReceiver as? FirQualifiedAccessExpression)?.calleeReference
            (callee?.getResolvedSymbolOfNameReference()?.fir as? FirProperty)?.getInitializerFunctionCall()
        }
        val hasNext = condition?.calleeReference?.getResolvedSymbolOfNameReference()

// CHECK: [[PROMISES:%.*]]:3, [[FUTURES:%.*]]:3 = "mlrt.allocate_control_futures"
// CHECK: mlrt.async([[PROMISES]]#2) {callee = @main_stream_4
// CHECK: mlrt.async([[FUTURES]]#2, [[PROMISES]]#1) {callee = @main_stream_3
// CHECK: mlrt.async([[FUTURES]]#1, [[PROMISES]]#0) {callee = @main_stream_2
// CHECK: mlrt.async([[FUTURES]]#0) {callee = @main_stream_1
// CHECK: mlrt.await_handle
// CHECK: mlrt.await_handle
// CHECK: mlrt.await_handle

	ADD	$8, RSP, R1	// argv
	BL	main(SB)

// When building with -buildmode=c-shared, this symbol is called when the shared
// library is loaded.
TEXT _rt0_arm64_netbsd_lib(SB),NOSPLIT,$184
	// Preserve callee-save registers.
	SAVE_R19_TO_R28(24)
	SAVE_F8_TO_F15(104)

	// Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go
	MOVD	ZR, g

	MOVD	R0, _rt0_arm64_netbsd_lib_argc<>(SB)

	ADD	$8, RSP, R1	// argv
	BL	main(SB)

// When building with -buildmode=c-shared, this symbol is called when the shared
// library is loaded.
TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$184
	// Preserve callee-save registers.
	SAVE_R19_TO_R28(24)
	SAVE_F8_TO_F15(104)

	// Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go
	MOVD	ZR, g

	MOVD	R0, _rt0_arm64_linux_lib_argc<>(SB)

	MOVD	arg1+16(FP), RARG1
	MOVD	fakePC+24(FP), R8
	// Save the original return address in a local variable
	MOVD	R30, savedRetAddr-8(SP)

	MOVD	g_m(g), R10

	// Switch to g0 stack.
	MOVD	RSP, R19	// callee-saved, preserved across the CALL
	MOVD	m_g0(R10), R11
	CMP	R11, g
	BEQ	call	// already on g0
	MOVD	(g_sched+gobuf_sp)(R11), R12
	MOVD	R12, RSP
call:

func.func @_tfrt_fallback_init(%arg0: !tfrt.chain) -> !tfrt.chain {
  %0 = tfrt_fallback_async.createop(%arg0) key(0) device("/device:CPU:0") "tf.Less"() {T = i32} num_args(2)
  tfrt.return %0 : !tfrt.chain
}

func.func @callee(%ch: !tfrt.chain, %arg: !tfrt_fallback.tf_tensor) -> (!tfrt.chain, !tfrt_fallback.tf_tensor) {
  %const = tfrt_fallback_async.const_dense_tensor dense<9> : tensor<i32> {_tfrt_cost = 1 : i64}

expression: CALL_EXPRESSION
text: callee()

expression: PARENTHESIZED
text: (::callee)

	MOVD	0(R0), R0	// argc
	BL	main(SB)

// When building with -buildmode=c-shared, this symbol is called when the shared
// library is loaded.
TEXT _rt0_arm64_freebsd_lib(SB),NOSPLIT,$184
	// Preserve callee-save registers.
	SAVE_R19_TO_R28(24)
	SAVE_F8_TO_F15(104)

	// Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go
	MOVD	ZR, g

	MOVD	R0, _rt0_arm64_freebsd_lib_argc<>(SB)