ll | Generated parser for LLVM IR | Compiler library

 by   llir Go Version: Current License: Non-SPDX

kandi X-RAY | ll Summary

kandi X-RAY | ll Summary

ll is a Go library typically used in Utilities, Compiler applications. ll has no bugs, it has no vulnerabilities and it has low support. However ll has a Non-SPDX License. You can download it from GitHub.

This project generates lexers and parsers for LLVM IR assembly from an EBNF grammar using Textmapper.
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              ll has a low active ecosystem.
              It has 7 star(s) with 0 fork(s). There are 4 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 0 open issues and 3 have been closed. On average issues are closed in 2 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of ll is current.

            kandi-Quality Quality

              ll has no bugs reported.

            kandi-Security Security

              ll has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              ll has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              ll releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed ll and discovered the below as its top functions. This is intended to give you an instant insight into ll implemented functionality, and help decide if they suit your requirements.
            • ToLlvmNode converts a node to a LlvmNode .
            • Next returns the next token .
            • returns the goto state for the given symbol .
            • OneOf returns a selector that matches the given types .
            • lineOffsets returns a slice of line offsets for each line .
            • Parse parses a file and returns a Tree .
            • symmbolName returns the name of the symbol .
            • lalr returns the index of next action .
            • newBuilder returns a new node builder .
            • newTree returns a new Tree .
            Get all kandi verified functions for this library.

            ll Key Features

            No Key Features are available at this moment for ll.

            ll Examples and Code Snippets

            Reverse the LL .
            pythondot img1Lines of Code : 15dot img1License : Permissive (MIT License)
            copy iconCopy
            def reverse_ll(ll):
                prev_node = None
            
                while ll is not None:
                    # save the current node
                    current = ll
                    # go to the next node
                    ll = ll.next
            
                    # change the pointer of the current node to point to the previous nod  
            Return True if the LL is an ascending order .
            pythondot img2Lines of Code : 7dot img2License : Permissive (MIT License)
            copy iconCopy
            def is_ascending_ll(ll):
                while ll.next != None:
                    if ll.val >= ll.next.val:
                        return False
                    ll = ll.next
            
                return True  

            Community Discussions

            QUESTION

            How to align the following Higher High and Lower Low plotshape to RSI line in pinescript?
            Asked 2021-Jun-15 at 09:25

            Following script is a combination of RSI and Higher High and Lower Low script. The issue is that the HH LL labels are aligned for the price not on the RSI Line. How to align the labels to the RSI line? It is basically showing the Higher Highs and Lower Lows of RSI. The labels need to stick on to the respective RSI line.

            ...

            ANSWER

            Answered 2021-Jun-15 at 09:25

            Changed the location.belowbar and location.abovebar with location.absolute and the plotshapes display (ex: if _hl is true, plot at the RSI level, otherwise pass)

            Source https://stackoverflow.com/questions/67982535

            QUESTION

            Calling shell script from system c++ function making the shell script running as different user
            Asked 2021-Jun-14 at 18:03

            I am using the system c++ call to execute the shell script the caller program is running as root but the shell sctipt which is called form the c++ code is running as different user.

            How can I make sure the shell script should also run as root user like the c++ binary. I don't want to rely on using sudo command as it can ask for password.

            ...

            ANSWER

            Answered 2021-Jun-14 at 18:03

            A few bits of documentation to start:

            From man 3 system's caveats section:

            Do not use system() from a privileged program (a set-user-ID or set-group-ID program, or a program with capabilities) because strange values for some environment variables might be used to subvert system integrity. For example, PATH could be manipulated so that an arbitrary program is executed with privilege. Use the exec(3) family of functions instead, but not execlp(3) or execvp(3) (which also use the PATH environment variable to search for an executable).

            system() will not, in fact, work properly from programs with set-user-ID or set-group-ID privileges on systems on which /bin/sh is bash version 2: as a security measure, bash 2 drops privileges on startup. Debian uses a different shell, dash(1), which does not do this when invoked as sh.)

            And from the bash manual's description of the -p command line argument (Emphasis added):

            Turn on privileged mode. In this mode, the $BASH_ENV and $ENV files are not processed, shell functions are not inherited from the environment, and the SHELLOPTS, BASHOPTS, CDPATH and GLOBIGNORE variables, if they appear in the environment, are ignored. If the shell is started with the effective user (group) id not equal to the real user (group) id, and the -p option is not supplied, these actions are taken and the effective user id is set to the real user id. If the -p option is supplied at startup, the effective user id is not reset. Turning this option off causes the effective user and group ids to be set to the real user and group ids.

            So even if your /bin/sh doesn't drop privileges when run, bash will when it's run in turn without explicitly telling it not to.

            So one option is to scrap using system(), and do a lower-level fork()/exec() of bash -p your-script-name.

            Some other approaches to allowing scripts to run at elevated privileges are mentioned in Allow suid on shell scripts. In particular the answer using setuid() to change the real UID looks like it's worth investigating.

            Or configure sudo to not require a password for a particular script for a given user.

            Also see Why should I not #include ?

            Source https://stackoverflow.com/questions/67973497

            QUESTION

            Pandas groupby - dataframe's column disappearing
            Asked 2021-Jun-14 at 14:27

            I have the following data frame called "new_df":

            ...

            ANSWER

            Answered 2021-May-18 at 21:08

            That's probably due to the wrong data type. You can try this.

            Source https://stackoverflow.com/questions/67593935

            QUESTION

            What is the alternative to "'llc -march=cpp" in LLVM 12
            Asked 2021-Jun-14 at 13:05

            LLVM used to provide llc -march=cpp test.ll -o test.cpp instruction to learn C++ API, but this is not available in llvm 12.

            ...

            ANSWER

            Answered 2021-Jun-14 at 13:05

            Unfortunately, there is no alternative. The reason why C++ backend was removed long time ago is quite simple: it did not serve its main intention to be a guide to LLVM C++ API well, it generated suboptimal code and was not updated to support the latest changes to C++ API.

            You can use the code of existing transformation passes to learn LLVM C++ API

            Source https://stackoverflow.com/questions/67945430

            QUESTION

            Join Leave action logs not working for some reason, someone?
            Asked 2021-Jun-14 at 02:16

            I have these join / leave audit logs that also send a welcome message in a channel and give people a role when they join the server. I am using discord.js version 12.3.1 and node version 14.0.0 because they work the best for me. Here is my code with some commented out stuff to show you what stuff does.

            ...

            ANSWER

            Answered 2021-Jun-14 at 02:16

            You should keep in mind that for guildMember... events, you need to have the bot invited with this on: It can be found at the bottom of the "bot" section of your application.

            Source https://stackoverflow.com/questions/67952178

            QUESTION

            I want to solve the javascript OOP problems, but my code isn't complete
            Asked 2021-Jun-13 at 13:15

            In this challenge, using javaScript you will create 3 classes

            1. Super class called Animal.
            2. Dog and Cat class which both extends Animal class (a dog is an animal and a cat is an animal)
            3. Dog and Cat class should only have 1 function, which is their own implementation of the sound() function. This is polymorphism
            4. a Home class. But we’ll talk about that later
            ...

            ANSWER

            Answered 2021-Jun-05 at 13:48

            Since 2015 there should be no more need to go through the pain of assigning prototype properties like that, and establish inheritance between two classes with such assignments.

            I would suggest rewriting your code completely, and using the class syntax, where you don't need to explicitly do this inheritance fiddling with the prototype property:

            Source https://stackoverflow.com/questions/67850125

            QUESTION

            Segmentation error when I use double pointers in C to find determinant of an array
            Asked 2021-Jun-13 at 12:36

            I'm trying to write a code in C that calculates the determinant of given n * n matrix, but I end up getting segmentation fault in the function get_subarray even though I have not exceeded the last index anywhere.

            ...

            ANSWER

            Answered 2021-Jun-13 at 12:36

            You create an array "subarray" with size n-1, then iterate over it from j = 0 to n - 1 but always assign to subarray[i] instead of subarry[j]. Why is the way to create a "subarray" different from an "array"? Create one function that can return matrix with some size.

            Source https://stackoverflow.com/questions/67958080

            QUESTION

            What's the purpose of deferred callbacks in libevent?
            Asked 2021-Jun-13 at 07:07

            According to the libevent book:

            Deferred callbacks

            By default, a bufferevent callbacks are executed immediately when the corresponding condition happens. (This is true of evbuffer callbacks too; we’ll get to those later.) This immediate invocation can make trouble when dependencies get complex. For example, suppose that there is a callback that moves data into evbuffer A when it grows empty, and another callback that processes data out of evbuffer A when it grows full. Since these calls are all happening on the stack, you might risk a stack overflow if the dependency grows nasty enough.

            To solve this, you can tell a bufferevent (or an evbuffer) that its callbacks should be deferred. When the conditions are met for a deferred callback, rather than invoking it immediately, it is queued as part of the event_loop() call, and invoked after the regular events' callbacks.

            As described above:

            1. The event loop fetches a batch of events, and processes them one by one immediately.
            2. Before the fetched events are processed, any new event won't be fetched and processed.
            3. If an event was marked as BEV_OPT_DEFER_CALLBACKS, then it will be processed after all other events in the same batch are processed.

            Provided two callbacks ca and cb. First, ca is called, ca finds evbuffer_A is empty, then writes a message into it.

            Then, cb is called, and cb finds evbuffer_A contains a message, then fetch and send it out.

            When cb is called, ca's stack has been released. I think there won't be a stack overflow in such a scenario.

            So, my question is:

            What's the purpose of deferred callbacks in libevent?

            ...

            ANSWER

            Answered 2021-Jun-13 at 07:07

            The example given in the quoted text is a buffer being filled after one event and emptied after another event.

            Consider this non-event driven pseudo-code for the same example.

            Source https://stackoverflow.com/questions/67955308

            QUESTION

            How to convert any negative value to zero with bitwise operators?
            Asked 2021-Jun-12 at 10:23

            I'm writing the PopBack() operation for a LinkedList in Go, the code looks like this:

            ...

            ANSWER

            Answered 2021-Jun-12 at 10:23

            Negative values have the sign bit set, so you can do like this

            Source https://stackoverflow.com/questions/67830622

            QUESTION

            oredered_set not compiling in c++
            Asked 2021-Jun-12 at 04:34

            I coded this statement and receiving compilation error. Code :

            ...

            ANSWER

            Answered 2021-Jun-12 at 04:33

            I suspect you have a file named c:\mingw\lib\gcc\mingw32\6.3.0\include\c++\ext\pb_ds\detail\resize_policy\hash_standard_resize_policy_imp.hpp0000644. Rename that file to remove the 0000644 from the end of it.

            Source https://stackoverflow.com/questions/67945619

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install ll

            You can download it from GitHub.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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