[llvm-profgen] Extend llvm-profgen to generate vtable profiles with data access events for non context-sensitive profiles using debug info (#148013) An RFC is in https://discourse.llvm.org/t/rfc-vtable-type-profiling-for-samplefdo/87283 This change extends to process perf data with Intel [MEM_INST_RETIRED.ALL_LOADS](https://perfmon-events.intel.com/index.html?pltfrm=skylake_server.html&evnt=MEM_INST_RETIRED.ALL_LOADS) samples and produce sample profiles with vtable information for non context-sensitive SampleFDO profiles. * For feature parity across different hardwares, future work could incorporate support for AMD Instruction-Based Sampling (IBS) and Arm Statistical Profiling Extension (SPE). --------- Co-authored-by: Paschalis Mpeis <paschalis.mpeis@arm.com>
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.