[all-commits] [llvm/llvm-project] aabc4b: [ORC] Don't try to copy from an empty segment in S...

[lhames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aabc4b13e8c9c1c17cb6ee0975f54e816fc6da8a
      https://github.com/llvm/llvm-project/commit/aabc4b13e8c9c1c17cb6ee0975f54e816fc6da8a
  Author: Lang Hames <lhames at gmail.com>
  Date:   2022-07-20 (Wed, 20 Jul 2022)

  Changed paths:
    M llvm/lib/ExecutionEngine/Orc/TargetProcess/SimpleExecutorMemoryManager.cpp

  Log Message:
  -----------
  [ORC] Don't try to copy from an empty segment in SimpleExecutorMemoryManager.

Since 67220c2ad72e empty SPSSequence<char>s deserialize to default-constructed
ArrayRef<char>s, which have a null data field. We need to check for this to
avoid memcpy'ing from a nullptr.

This should fix the bot failure in
https://lab.llvm.org/buildbot/#/builders/85/builds/9323