[PATCH] D107878: [SampleFDO] Flow Sensitive Sample FDO (FSAFDO) profile loader

[Rong Xu via Phabricator via llvm-commits]

xur created this revision.
xur added reviewers: wmi, wenlei, hoy.
Herald added subscribers: dexonsmith, pengfei, hiraditya, mgorny.
xur requested review of this revision.
Herald added a project: LLVM.

This patch implements Flow Sensitive Sample FDO (FSAFDO) profile loader.
We have two additional profile loaders for FS profile, one before RegAlloc and one before BlockPlacement.

"-enable-fs-discriminator=true" turns on the FS profile loaders, if sample-profile-use is specified.


https://reviews.llvm.org/D107878

Files:
  llvm/include/llvm/CodeGen/FlowSensitiveSampleProfile.h
  llvm/include/llvm/CodeGen/MachineDominators.h
  llvm/include/llvm/CodeGen/MachineOptimizationRemarkEmitter.h
  llvm/include/llvm/CodeGen/Passes.h
  llvm/include/llvm/IR/DebugInfoMetadata.h
  llvm/include/llvm/InitializePasses.h
  llvm/include/llvm/Transforms/Utils/SampleProfileLoaderBaseImpl.h
  llvm/lib/CodeGen/CMakeLists.txt
  llvm/lib/CodeGen/FlowSensitiveSampleProfile.cpp
  llvm/lib/CodeGen/TargetPassConfig.cpp
  llvm/lib/Passes/PassBuilder.cpp
  llvm/lib/ProfileData/SampleProf.cpp
  llvm/test/CodeGen/X86/Inputs/fsloader.afdo
  llvm/test/CodeGen/X86/fsafdo_test1.ll
  llvm/test/CodeGen/X86/fsafdo_test2.ll

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