[CI] Enable -Werror in pre-merge CI (#155627) We have many buildbots that run with -Werror, but it's currently not enabled in pre-merge CI, so adding a warning causes a slew of post-commit failures. Note that we only guarantee warning freedom when compiling with a recent version of clang, but not when using gcc or msvc. The monolithic-linux build uses recent clang (currently 21.1.0), so it should be safe to enable the option there.
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.
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