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clang-p2996/llvm/test/tools/llvm-profdata/Inputs/mix_instr_small.proftext
Rong Xu d22c5d0f55 [llvm-profdata] Adjust profile supplementation heuristics
1) We now use the count size in FDO as the main factor to deal with pre-inliner.
Currently we use the number of sample records in the SampleFDO profile. But
that only counts the top-level body sample records (not including the nested
call-sites). We are seeing some big functions not being updated because of
this. I think using the count size in FDO profile is more reasonable to judge if
the function is likely to be inlined to the callers in pre-inliner.

(2) We use getMaxCount in SampleFDO rather the HeadSample to determine if
if the function is hot in SampleFDO. This is in-sync with the logic
in the compiler (also HeadSample can be 0).

Differential Revision: https://reviews.llvm.org/D132602
2022-08-29 14:17:27 -07:00

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