[all-commits] [llvm/llvm-project] c4736b: Don't memcpy from an empty ArrayRef; the base poin...

[Richard Smith via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c4736b91f87e9163edcdef78891398f32390ffc2
      https://github.com/llvm/llvm-project/commit/c4736b91f87e9163edcdef78891398f32390ffc2
  Author: Richard Smith <richard at metafoo.co.uk>
  Date:   2020-12-15 (Tue, 15 Dec 2020)

  Changed paths:
    M clang/lib/AST/APValue.cpp

  Log Message:
  -----------
  Don't memcpy from an empty ArrayRef; the base pointer could be null, and
the C rules say memcpy can't accept a null pointer.

This should fix a test failure with the ubsan buildbots.