Mingming Liu 4eb20a12be [llvm-profdata][StaticDataLayout] Print summary of data access profiles in llvm-profdata (#173087) ...

This gives some aggregated information about the data access profiles.
The summaries are computed on the fly to save a profile version update.

Implementation-wise
* `MemProfSummary::printSummaryYaml` is updated to print data access
summaries for v4, the profile version that started to support data
access profiles.
* MemProfSummary.cpp has a FIXME comment to serialize the summary into
profile data, ideally batching with more substantial profile format
change.
* MemProfSummaryBuilder is not updated for now. This class is used to
serialize memprof summaries for v4 and above by memprof writer, and to
construct memprof summaries for v3 and prior versions by llvm-profdata.

2025-12-19 22:07:51 +00:00

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