[all-commits] [llvm/llvm-project] 684e79: [memprof] Add YAML read/write support to llvm-prof...

[Kazu Hirata via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 684e79f25415250afa51bfcd294d793720aa4bae
      https://github.com/llvm/llvm-project/commit/684e79f25415250afa51bfcd294d793720aa4bae
  Author: Kazu Hirata <kazu at google.com>
  Date:   2024-12-07 (Sat, 07 Dec 2024)

  Changed paths:
    M llvm/include/llvm/ProfileData/InstrProfReader.h
    M llvm/include/llvm/ProfileData/MemProfReader.h
    M llvm/lib/ProfileData/InstrProfReader.cpp
    M llvm/lib/ProfileData/MemProfReader.cpp
    A llvm/test/tools/llvm-profdata/memprof-yaml-invalid.test
    A llvm/test/tools/llvm-profdata/memprof-yaml.test
    M llvm/tools/llvm-profdata/llvm-profdata.cpp

  Log Message:
  -----------
  [memprof] Add YAML read/write support to llvm-profdata (#118915)

This patch adds YAML read/write support to llvm-profdata.  The primary
intent is to accommodate MemProf profiles in test cases, thereby
avoiding the binary format.

The read support is via llvm-profdata merge.  This is useful when we
want to verify that the compiler does the right thing on a given .ll
file and a MemProf profile in a test case.  In the test case, we would
convert the MemProf profile in YAML to an indexed profile and invoke
the compiler on the .ll file along with the indexed profile.

The write support is via llvm-profdata show --memory.  This is useful
when we wish to convert an indexed MemProf profile to YAML while
writing tests.  We would compile a test case in C++, run it for an
indexed MemProf profile, and then convert it to the text format.



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