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Dehao Chen
ded3597f2c
Summary: In the current implementation, we only have accurate profile count for standalone symbols. For inlined functions, we do not have entry count data because it's not available in LBR. In this patch, we use the first instruction's frequency to estimiate the function's entry count, especially for inlined functions. This may be inaccurate due to debug info in optimized code. However, this is a better estimate than the static 80/20 estimation we have in the current implementation. Reviewers: tejohnson, davidxl Reviewed By: tejohnson Subscribers: sanjoy, llvm-commits, aprantl Differential Revision: https://reviews.llvm.org/D38478 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315369 91177308-0d34-0410-b5e6-96231b3b80d8
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