[analyzer] Introduce per-entry-point statistics (#131175) So far CSA was relying on the LLVM Statistic package that allowed us to gather some data about analysis of an entire translation unit. However, the translation unit consists of a collection of loosely related entry points. Aggregating data across multiple such entry points is often counter productive. This change introduces a new lightweight always-on facility to collect Boolean or numerical statistics for each entry point and dump them in a CSV format. Such format makes it easy to aggregate data across multiple translation units and analyze it with common data-processing tools. We break down the existing statistics that were collected on the per-TU basis into values per entry point. Additionally, we enable the statistics unconditionally (STATISTIC -> ALWAYS_ENABLED_STATISTIC) to facilitate their use (you can gather the data with a simple run-time flag rather than having to recompile the analyzer). These statistics are very light and add virtually no overhead. Co-authored-by: Balazs Benics <benicsbalazs@gmail.com> CPP-6160
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.
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.