f0d32575a1
Remove SymbolToFileName mapping from every local symbol to its containing FILE symbol name, and reuse FileSymbols to disambiguate local symbols instead. Also removes the check for `ld-temp.o` file symbol which was added to prevent LTO build mode from affecting the disambiguated name. This may cause incompatibility when using the profile collected on a binary built in a different mode than the input binary. Addresses #90661. Speeds up discover file objects by 5-10% for large binaries: - binary with ~1.2M symbols: 12.6422s -> 12.0297s - binary with ~4.5M symbols: 48.8851s -> 43.7315s
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, LLVM Office Hours or Regular sync-ups.
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