Question

我在LLVM CallGraph上使用scc_iterator。

以下是我如何得到CallGraph：

private var msgComposeMode: MessageComposeMode = .newMessage

private var arrangedMessages = [Any]()


@IBOutlet weak var Textview: GrowingTextView!

@IBOutlet weak var Tblview: UITableView!

@IBAction func sendReplyMessage_Action() {

if Textview.text.trimmedString().characters.count == 0 {
    return
}

sendReplyMessage()
    print("sendreply")
}

private func sendReplyMessage() {
    guard
        let toName = self.userNameToUseForChat,
        let fromName = ChatAppAuthManager.shared.userName,
        let orgID = ChatAppAuthManager.shared.orgId
        else { return }

    Textview.resignFirstResponder()

    var msgParams: JSONDictionary = [
        "fromUser": fromName,
        "toUser": toName,
        "orgId": orgID,
        "msg": Textview.text,
        "osType": "iOS",
        ]

    var otherChatInfo = JSONDictionary()
    otherChatInfo["messageType"] = "text"
    otherChatInfo["isViewed"] = false
    otherChatInfo["length"] = Textview.text.characters.count
    msgParams["otherChatInfo"] = otherChatInfo

    if msgComposeMode == MessageComposeMode.newMessage {
        view?.showProgress(withMessage: "Sending...")
        SocketClient.shared.replyToChatMessage(parameter: msgParams) { [weak self] theMessage in
            self?.arrangedMessages.append(theMessage)
            self?.Tblview.reloadData()
        self?.showMostRecentMessage(with: false)
           self?.view?.hideProgress()
        }
    } else if msgComposeMode == MessageComposeMode.editingMessage {
        var editedMessage = nil as replyChatMessage?

        for case let msg as replyChatMessage in self.arrangedMessages {
            if msg.isSeelcted {
                editedMessage = msg
                break
            }
        }

        msgParams["chatId"] = editedMessage?.id
        editedMessage?.msg = Textview.text
        SocketClient.shared.updateChatMessage(parameter: msgParams)
        arrangedMessages[editedMessage!.messageIndex] = editedMessage!

        Tblview?.reloadData()
        view?.hideProgress()
        msgComposeMode = .newMessage
    }

    Textview.text = ""
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    print("count")
    return arrangedMessages.count
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let msg: Any = arrangedMessages[indexPath.row]
    var theMessage: replyChatMessage?
    if let theMessage = msg as? replyChatMessage {
        if (theMessage.otherChatInfo?.messageType ?? "text") == replyChatMessage.MessageType.text.rawValue {
            theMessage.messageIndex = indexPath.row

            if theMessage.wasMessageSent(to: userNameToUseForChat) {
                let senderCell = Tblview.dequeueReusableCell(
                    withIdentifier: MessageSenderCell.stringRepresentation
                    ) as! MessageSenderCell

                senderCell.show(reply: theMessage)
                senderCell.didLongPress = { [unowned self] in
                    if let selectedMsg = self.isAnyMessageSelected() {
                        if selectedMsg.id != theMessage.id {
                            return
                        }
                    }

                    theMessage.isSeelcted.toggle()
                    self.arrangedMessages[theMessage.messageIndex] = theMessage
                    self.isMessagesSelected = theMessage.isSeelcted
                    self.Tblview?.reloadData()
                }

                senderCell.backgroundColor = theMessage.isSeelcted ? selectedCellColor : UIColor.clear

                return senderCell
            }

            let receiverCell = Tblview.dequeueReusableCell(
                withIdentifier: MessageReceiverCell.stringRepresentation
                ) as! MessageReceiverCell

            receiverCell.show(reply: theMessage)
            receiverCell.didLongPress = { [unowned self] in
                if let selectedMsg = self.isAnyMessageSelected() {
                    if selectedMsg.id != theMessage.id {
                        return
                    }
                }

                theMessage.isSeelcted.toggle()
                self.arrangedMessages[theMessage.messageIndex] = theMessage
                self.isMessagesSelected = theMessage.isSeelcted
                self.Tblview?.reloadData()
            }

            receiverCell.backgroundColor = theMessage.isSeelcted ? selectedCellColor : UIColor.clear

            return receiverCell
        } else if theMessage.otherChatInfo?.messageType == replyChatMessage.MessageType.image.rawValue {
            let theCell = Tblview.dequeueReusableCell(
                withIdentifier: MediaCell.stringRepresentation
                ) as! MediaCell
            theCell.showData(reply : theMessage)
            theCell.didLongPress = { [unowned self] in
                if let selectedMsg: replyChatMessage = self.isAnyMessageSelected() {
                    if selectedMsg.id != theMessage.id {
                        return
                    }
                }

                theMessage.isSeelcted.toggle()
                self.arrangedMessages[theMessage.messageIndex] = theMessage
                self.isMessagesSelected = theMessage.isSeelcted
                self.Tblview?.reloadData()
            }

            theCell.backgroundColor = theMessage.isSeelcted ? selectedCellColor : UIColor.clear

            return theCell
        } else {
            return UITableViewCell(
                style: UITableViewCellStyle.default,
                reuseIdentifier: "cell"
            )
        }
    } else {
        let theCell = Tblview.dequeueReusableCell(
            withIdentifier: MessageDateCell.stringRepresentation
            ) as! MessageDateCell

        theCell.messageDate = msg as? String

        return theCell
    }
}
}

这导致了段错误：

CallGraph &CG = getAnalysis<CallGraphWrapperPass>().getCallGraph();
CG.dump();

这些是我注册的通行证：

scc_iterator<CallGraph*> SCCI = scc_begin(&CG)

附加说明：当我转储callGraph时，我得到了这个：

legacy::PassManager passManager;
passManager.add(new llvm::CallGraphWrapperPass);
passManager.add(new me::myPass);

回溯： https://pastebin.com/46e5sr5p

Answer 1

我正在使用llvm 4.0。升级到llvm 5.0似乎正在起作用。

当我在CallGraph上使用scc_begin时，LLVM scc_iterator崩溃

1 个答案: