Mingjie Xu fac9472593
[IR] Reland Optimize PHINode::removeIncomingValue() and PHINode::removeIncomingValueIf() to use the swapping strategy. (#174274)
Reland #171963, #172639 and #173444, they are reverted in
86b9f90b9574b3a7d15d28a91f6316459dcfa046 because of introducing
non-determinism in compiles.
The non-determinism has been fixed in
9b8addffa70cee5b2acc5454712d9cf78ce45710.
2026-01-04 09:24:53 +08:00
2025-12-25 19:31:00 +00:00
2025-04-14 16:54:14 +08:00

The LLVM Compiler Infrastructure

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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, 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.

Description
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
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LLVM 42.4%
C++ 30.1%
C 12.8%
Assembly 9.8%
MLIR 1.6%
Other 2.9%