
This revision removes the metadata op, that to the best of our knowledge, has no more uses after switching to a purely attribute based metadata representation: https://reviews.llvm.org/D155444 https://reviews.llvm.org/D155285 https://reviews.llvm.org/D155159 These changes got unlocked after landing distinct attribute support: https://reviews.llvm.org/D153360, which enables modeling distinct metadata using attributes. As a result, all metadata kinds are now represented using attributes. Previously, there has been a mix of attribute and op based representations. Having attribute only metadata makes it possible to update the metadata in-parallel, while updating the global metadata operation has been a sequential process. The LLVM Dialect inliner already benefits from this change and now creates new alias scopes and domains during inlining rather than dropping the no alias information: https://reviews.llvm.org/D155712 Reviewed By: Dinistro Differential Revision: https://reviews.llvm.org/D156217
The LLVM Compiler Infrastructure
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Getting the Source Code and Building LLVM
Consult the Getting Started with LLVM page for information on building and running LLVM.
For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.
Getting in touch
Join the LLVM Discourse forums, Discord chat, or #llvm IRC channel on OFTC.
The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.