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Teresa Johnson
0273961b82
[ThinLTO] Implement index-based WPD
This patch adds support to the WholeProgramDevirt pass to perform index-based WPD, which is invoked from ThinLTO during the thin link. The ThinLTO backend (WPD import phase) behaves the same regardless of whether the WPD decisions were made with the index-based or (the existing) IR-based analysis. Depends on D54815. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, arphaman, dang, llvm-commits Differential Revision: https://reviews.llvm.org/D55153 llvm-svn: 367679
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