llvm-project

40886fbd - [llvm-profgen] Extend llvm-profgen to generate vtable profiles with data access events for non context-sensitive profiles using debug info (#148013)

[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>