[PATCH] D148877: [PGO]Implement metadata combine for 'branch_weights' of direct callsites

[Mingming Liu via Phabricator via llvm-commits]

mingmingl created this revision.
Herald added subscribers: wlei, wenlei, hiraditya.
Herald added a project: All.
mingmingl requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D148877

Files:
  llvm/include/llvm/IR/Metadata.h
  llvm/lib/IR/Metadata.cpp
  llvm/lib/Transforms/Utils/Local.cpp
  llvm/test/Transforms/SimplifyCFG/merge-direct-call-branch-weights-in-hoist.ll
  llvm/test/Transforms/SimplifyCFG/merge-direct-call-branch-weights-in-sink.ll

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