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Xinliang David Li
931217997c
[PGO] Implement ValueProfiling Closure interfaces for runtime value profile data
This is one of the many steps to commonize value profiling support between profile runtime and compiler/llvm tools. After this change, profiler runtime now can share the same C APIs to do VP serialization/deseriazation with LLVM host tools (and produces value data in identical format between indexed and raw profile). It is not yet enabled in profiler runtime yet. Also added a unit test case to test runtime profile data serialization/deserialization interfaces implemented using common closure code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254110 91177308-0d34-0410-b5e6-96231b3b80d8
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