[all-commits] [llvm/llvm-project] 0d362c: [memprof] Store callsite metadata with memprof rec...

[Snehasish Kumar via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0d362c90d335509c57c0fbd01ae1829e2b9c3765
      https://github.com/llvm/llvm-project/commit/0d362c90d335509c57c0fbd01ae1829e2b9c3765
  Author: Snehasish Kumar <snehasishk at google.com>
  Date:   2022-03-21 (Mon, 21 Mar 2022)

  Changed paths:
    M llvm/include/llvm/ProfileData/InstrProfWriter.h
    M llvm/include/llvm/ProfileData/MemProf.h
    M llvm/include/llvm/ProfileData/RawMemProfReader.h
    M llvm/lib/ProfileData/InstrProfWriter.cpp
    M llvm/lib/ProfileData/MemProf.cpp
    M llvm/lib/ProfileData/RawMemProfReader.cpp
    A llvm/test/tools/llvm-profdata/Inputs/inline.memprofexe
    M llvm/test/tools/llvm-profdata/memprof-basic.test
    M llvm/test/tools/llvm-profdata/memprof-inline.test
    M llvm/tools/llvm-profdata/llvm-profdata.cpp
    M llvm/unittests/ProfileData/InstrProfTest.cpp
    M llvm/unittests/ProfileData/MemProfTest.cpp

  Log Message:
  -----------
  [memprof] Store callsite metadata with memprof records.

To ease profile annotation, each of the callsites in a function can be
annotated with profile data - "IR metadata format for MemProf" [1]. This
patch extends the on-disk serialized record format to store the debug
information for allocation callsites incl inline frames. This change is
incompatible with the existing format i.e. indexed profiles must be
regenerated, raw profiles are unaffected.

[1] https://groups.google.com/g/llvm-dev/c/aWHsdMxKAfE/m/WtEmRqyhAgAJ

Reviewed By: tejohnson

Differential Revision: https://reviews.llvm.org/D121179