// If a function call is resolved to an implicit invoke call, the FirImplicitInvokeCall will have the `invoke()` function as the
        // callee and the variable as the explicit receiver. To correctly get all candidates, we need to get the original function
        // call's explicit receiver (if there is any) and callee (i.e., the variable).
        val unwrappedExplicitReceiver = explicitReceiver?.unwrapSmartcastExpression()

DEFINE_PPC64X_FUNCDESC(runtime·cgoSigtramp, sigtramp<>)
TEXT sigtramp<>(SB),NOSPLIT|NOFRAME|TOPFRAME,$0
#else
// ppc64le doesn't need function descriptors
// Save callee-save registers in the case of signal forwarding.
// Same as on ARM64 https://golang.org/issue/31827 .
//
// Note, it is assumed this is always called indirectly (e.g via

// Third, in long-term it will allow to remove cyclic runtime/race dependency on cmd/go.

// A brief recap of the s390x C calling convention.
// Arguments are passed in R2...R6, the rest is on stack.
// Callee-saved registers are: R6...R13, R15.
// Temporary registers are: R0...R5, R14.

// When calling racecalladdr, R1 is the call target address.

// The race ctx, ThreadState *thr below, is passed in R2 and loaded in racecalladdr.

// |  return address  |
// +------------------+
// |  caller's BP (*) | (*) if framepointer_enabled && varp > sp
// +------------------+ <- frame->varp
// |     locals       |
// +------------------+
// |  args to callee  |
// +------------------+ <- frame->sp
//
// (arm)
// +------------------+
// | args from caller |
// +------------------+ <- frame->argp
// | caller's retaddr |
// +------------------+

  }
  if (op_name == "tfl.while") {
    // Adds two empty regions for "tfl.while". We will fill the regions after
    // creating the callee functions because the "tfl.while" input/output types
    // may be different with the callee functions, and the call ops need to sync
    // with callee function types.
    op_state.addRegion();
    op_state.addRegion();
  }
  if (op_name == "tfl.unidirectional_sequence_lstm") {

				base.ErrorfAt(fn.Pos(), 0, "%v defined in both Go and assembly", fn)
			}
			fn.ABI = defABI
		}

		if fn.Pragma&ir.CgoUnsafeArgs != 0 {
			// CgoUnsafeArgs indicates the function (or its callee) uses
			// offsets to dispatch arguments, which currently using ABI0
			// frame layout. Pin it to ABI0.
			fn.ABI = obj.ABI0
			// Propagate linkname attribute, which was set on the ABIInternal
			// symbol.

    arg_locs.push_back(arg.getLoc());
  }

  auto wrap_func = builder.create<func::FuncOp>(location, func_name, func_type);
  wrap_func.setVisibility(SymbolTable::Visibility::Private);
  // The callee function for TF::XlaCallModuleOp must have this attribute.
  if (call_op_type == FunctionCallOpType::TFXlaCallModuleOp) {
    wrap_func->setAttr(TF::kFromXlaCallModuleAttrName, builder.getUnitAttr());
  }

// Called from cgo wrappers, this function returns g->m->curg.stack.hi.
// Must obey the gcc calling convention.
TEXT _cgo_topofstack(SB),NOSPLIT,$16
	// g (R22) and REGTMP (R30)  might be clobbered by load_g. They
	// are callee-save in the gcc calling convention, so save them.
	MOVV	R30, savedREGTMP-16(SP)
	MOVV	g, savedG-8(SP)

	JAL	runtime·load_g(SB)
	MOVV	g_m(g), R19
	MOVV	m_curg(R19), R19

// A public suffix list implementation is in the package
// golang.org/x/net/publicsuffix.
type PublicSuffixList interface {
	// PublicSuffix returns the public suffix of domain.
	//
	// TODO: specify which of the caller and callee is responsible for IP
	// addresses, for leading and trailing dots, for case sensitivity, and
	// for IDN/Punycode.
	PublicSuffix(domain string) string

	// String returns a description of the source of this public suffix

	frameSize := alignUp(abiMap.dstStackSize, goarch.PtrSize)
	frameSize += abiMap.dstSpill
	if frameSize > callbackMaxFrame {
		panic("compileCallback: function argument frame too large")
	}

	// For cdecl, the callee is responsible for popping its
	// arguments from the C stack.
	var retPop uintptr
	if cdecl {
		retPop = abiMap.srcStackSize
	}

	key := winCallbackKey{(*funcval)(fn.data), cdecl}

	cbsLock()