[VPlan] Add simple driver option to run some individual transforms. (#178522) Add an alternative to test VPlan in more isolation via a new `vplan-test-transform` option, which builds VPlan0 for each loop in the input IR and then can invoke a set of transforms on it. In order to allow different recipe types to be created, a new widen-from-metadata transform is added, which transforms VPInstructions to different recipes, based on custom !vplan.widen metadata. Currently this supports creating widen & replicate recipes, but can easily be extended in the future. Currently the handling is intentionally bare-bones, to be extended gradually as needed. PR: https://github.com/llvm/llvm-project/pull/178522
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.
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.
Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.
The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.