}

	// Perform a subtraction with borrow.
	var borrow uint64
	for i := 0; i < len(bufA); i += 8 {
		limbA, limbB := byteorder.LeUint64(bufA[i:]), byteorder.LeUint64(bufB[i:])
		_, borrow = bits.Sub64(limbA, limbB, borrow)
	}

	// If there is a borrow at the end of the operation, then a < b.
	return borrow == 1
}

}
func issue44228b(a []int32, i int) bool {
	// amd64: "BTL", -"SHL"
	return a[i>>5]&(1<<(i&31)) != 0
}

func issue48467(x, y uint64) uint64 {
	// arm64: -"NEG"
	d, borrow := bits.Sub64(x, y, 0)
	return x - d&(-borrow)
}

func foldConst(x, y uint64) uint64 {
	// arm64: "ADDS\t[$]7",-"MOVD\t[$]7"
	d, b := bits.Add64(x, 7, 0)
	return b & d
}

func foldConstOutOfRange(a uint64) uint64 {

	// `borrowingLimitPercent`, if present, configures a limit on how many
	// seats this priority level can borrow from other priority levels.
	// The limit is known as this level's BorrowingConcurrencyLimit
	// (BorrowingCL) and is a limit on the total number of seats that this
	// level may borrow at any one time.
	// This field holds the ratio of that limit to the level's nominal

	needSubtraction := no
	for i := _W - 1; i >= 0; i-- {
		carry := (y >> i) & 1
		var borrow uint
		mask := ctMask(needSubtraction)
		for i := 0; i < size; i++ {
			l := xLimbs[i] ^ (mask & (xLimbs[i] ^ dLimbs[i]))
			xLimbs[i], carry = bits.Add(l, l, carry)
			dLimbs[i], borrow = bits.Sub(xLimbs[i], mLimbs[i], borrow)
		}
		// Like in maybeSubtractModulus, we need the subtraction if either it

// returns `std::nullopt`.
std::optional<llvm::StringRef> GetTpuClusterName(Operation* op) {
  if (auto tpu_status = op->getAttrOfType<StringAttr>(kTpuStatusAttr)) {
    // Borrow cluster name from TPU status (for `TPUCompilationResult` op).
    return tpu_status.getValue();
  }
  auto device_type = op->getAttrOfType<StringAttr>(TF::kCompileDeviceTypeAttr);

    // The data transfer requests from device to host could arrive out of order,
    // so a single stream would cause deadlock. For this case,
    // xla_device_context would borrow a stream for each transfer request.
    device_to_host_stream = nullptr;
  } else {
    host_to_device_stream = stream_;
    device_to_host_stream = stream_;
    device_to_device_streams = {stream_};
  }

// Note that these semantics differ from x86: the carry flag has the opposite
// sense on a subtraction!
//
//	On amd64, C=1 represents a borrow, e.g. SBB on amd64 does x - y - C.
//	On arm64, C=0 represents a borrow, e.g. SBC on arm64 does x - y - ^C.
//	 (because it does x + ^y + C).
//
// See https://en.wikipedia.org/wiki/Carry_flag#Vs._borrow_flag
type flagConstant uint8

      if (device_type_attr.getValue().empty()) continue;
      if (device_type_attr.getValue() != mlir::TF::kTpuDevice) continue;
    }

    if (op.hasAttr(mlir::TF::kReplicationInfoAttr)) {
      // For replicated case, borrow cluster structure from replication info.
      // Following condition is already checked in
      // `HasValidCompilationAndReplicationAttributes` above, assert here for

		return
	}

	ctx = newContext(r, w, action)

	// Validate the authentication result here so that failures will be audit-logged.
	if apiErrCode != ErrNone {
		stsErr := apiToSTSError(apiErrCode)
		// Borrow the description error from the API error code
		writeSTSErrorResponse(ctx, w, stsErr, fmt.Errorf(errorCodes[apiErrCode].Description))
		return
	}

	if err := claims.populateSessionPolicy(r.Form); err != nil {

	MOVV	m_g0(R12), g
	JAL	runtime·save_g(SB)
	MOVV	(g_sched+gobuf_sp)(g), R3
	MOVV	savedsp-24(SP), R13 // must match frame size
	MOVV	R13, (g_sched+gobuf_sp)(g)

	// If the m on entry was nil, we called needm above to borrow an m,
	// 1. for the duration of the call on non-pthread platforms,
	// 2. or the duration of the C thread alive on pthread platforms.
	// If the m on entry wasn't nil,
	// 1. the thread might be a Go thread,