forked from OSchip/llvm-project
![]() We need to flatten the SampleFDO profile in profile supplementation because the InstrFDO profile does not have inlined callsite counters. Without flattening profile, FDO optimizations are not stable: we will not supplement the second generation profile when the modified functions are all inlined. This patch fixes this issue: we will flatten the profile for functions that appears in FDO profile. Note that we only need to find the hot/warm functions in SampleFDO profile, so we will not perform a full flatten. We will use a DFS traversal to compute the accumulated entry count and max bodycount. This is much cheaper than full flattening. Differential Revision: https://reviews.llvm.org/D138893 |
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CMakeLists.txt | ||
llvm-profdata.cpp |