[all-commits] [llvm/llvm-project] c74389: [memprof] Fix frame deserialization on big endian ...

[Snehasish Kumar via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c74389b4b58d8db3f8262ce15b9d514d62fe265c
      https://github.com/llvm/llvm-project/commit/c74389b4b58d8db3f8262ce15b9d514d62fe265c
  Author: Snehasish Kumar <snehasishk at google.com>
  Date:   2022-02-17 (Thu, 17 Feb 2022)

  Changed paths:
    M llvm/include/llvm/ProfileData/MemProf.h
    M llvm/lib/ProfileData/MemProf.cpp

  Log Message:
  -----------
  [memprof] Fix frame deserialization on big endian systems.

We write the memprof internal call frame data in little endian format.
However when reading the frame information we were casting it directly
to a MemProfRecord::Frame pointer. In this change we add a separate
deserialization method which uses an endian reader to read the bytes as
little endian.

This fixes https://lab.llvm.org/buildbot/#/builders/100/builds/12940

Differential Revision: https://reviews.llvm.org/D120093