| commit | 59bf60519fc30d9d36c86abd83093b068f6b1e4b | [log] [tgz] |
|---|---|---|
| author | Oskar Wirga <10386631+oskarwirga@users.noreply.github.com> | Fri Jan 26 11:25:36 2024 -0800 |
| committer | GitHub <noreply@github.com> | Fri Jan 26 11:25:36 2024 -0800 |
| tree | 0e22e6e25b8e64adcc309de01e476594e99eace7 | |
| parent | 2a068507016e476893b6b1b9c55b255dbae5829e [diff] |
Refactor recomputeLiveIns to operate on whole CFG (#79498) Currently, the way that recomputeLiveIns works is that it will recompute the livein registers for that MachineBasicBlock but it matters what order you call recomputeLiveIn which can result in incorrect register allocations down the line. This PR fixes that by simply recomputing the liveins for the entire CFG until convergence is achieved. This makes it harder to introduce subtle bugs which alter liveness.
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.