Peter Collingbourne 5c355ef216
Remove unnecessary -O1 from clang command.
It is generally inappropriate to pass -O flags to IRGen tests because
it makes them sensitive to optimizer behavior. #186548 makes a change to
optimizer behavior that would cause this test to fail without this change.

Reviewers: 

Pull Request: https://github.com/llvm/llvm-project/pull/190417
2026-04-03 15:28:34 -07:00
..

C language Family Front-end

Welcome to Clang.

This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers: