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d11d789e5e
Summary: Currently all type ids are emitted into the index file when it is written. For distributed ThinLTO, that meant that all type ids were being duplicated into every single distributed index file, regardless of whether they were referenced, leading to huge amounts of unnecessary duplication and size bloat. Keep track of the type id GUIDs actually referenced by the GV summary records being emitted, and only emit those type IDs. Add a new test, and fix test/Assembler/thinlto-summary.ll so that all type ids are referenced to prevent deletion in that test. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, vitalybuka, llvm-commits Differential Revision: https://reviews.llvm.org/D49565 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337503 91177308-0d34-0410-b5e6-96231b3b80d8