[all-commits] [llvm/llvm-project] effc33: [llvm-cov] Enforce alignment of function records

serge-sans-paille via All-commits all-commits at lists.llvm.org
Fri Jun 25 01:56:22 PDT 2021


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: effc3339f6c7702357471efc849c4fc31b4b1aad
      https://github.com/llvm/llvm-project/commit/effc3339f6c7702357471efc849c4fc31b4b1aad
  Author: serge-sans-paille <sguelton at redhat.com>
  Date:   2021-06-25 (Fri, 25 Jun 2021)

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

  Log Message:
  -----------
  [llvm-cov] Enforce alignment of function records

Function Records are required to be aligned on 8 bytes. This is enforced for each
records except the first, when one relies on the default alignment within an
std::string. There's no such guarantee, and indeed on 32 bits for some
implementation of std::string this is not enforced.

Provide a portable implementation based on llvm's MemoryBuffer.

Differential Revision: https://reviews.llvm.org/D104745




More information about the All-commits mailing list