wllvm ☆

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Description:
Toolkit for building whole-program LLVM bitcode files

Type: Formula | Latest Version: 1.3.1@0 | Tracked Since: Oct 11, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: llvm bitcode compiler static-analysis c c++

Install: brew install wllvm

About:
WLLVM is a Python toolkit that enables the creation of whole-program LLVM bitcode files from complex C/C++ projects. It works by replacing standard compiler toolchains (like clang or gcc) with wrappers that invoke the LLVM bitcode generator for each compilation unit. The primary value is facilitating whole-program analysis, optimization, or instrumentation of large codebases by providing a unified bitcode file.

Key Features:

Compiler wrapper scripts for transparent bitcode generation
Supports both clang and GCC toolchains
Command-line tools for aggregating bitcode files
Python-based for easy integration and extensibility

Use Cases:

Whole-program static analysis of C/C++ projects
Profile-guided optimization using bitcode
Security instrumentation of compiled binaries
Link-time optimization across entire applications

Alternatives:

LLVM -flto – LLVM's native LTO produces bitcode but WLLVM offers more granular control and works with non-LLVM toolchains
BOLT – BOLT performs post-link optimization on binaries, while WLLVM operates on bitcode before final compilation

Version History

Detected	Rev	Change	Commit
Oct 11, 2025 3:47pm	1	VERSION_BUMP	3d1c5d69
Oct 11, 2025 8:02am	1	VERSION_BUMP	68b853b4
Oct 12, 2024 7:22pm	1	VERSION_BUMP	f5832a5f
Nov 22, 2023 8:25pm	1	VERSION_BUMP	ac21306a
Oct 19, 2023 4:05am	1	VERSION_BUMP	5406f2b1
Sep 19, 2023 1:46am	1	VERSION_BUMP	50111857