[all-commits] [llvm/llvm-project] 54176d: libcxx 'LLVM_USE_SANITIZER=Address; Undefined'

[Brian Gesiak via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 54176d1766f25bc03ddb1a8932a380f6543d5150
      https://github.com/llvm/llvm-project/commit/54176d1766f25bc03ddb1a8932a380f6543d5150
  Author: Brian Gesiak <modocache at gmail.com>
  Date:   2020-04-04 (Sat, 04 Apr 2020)

  Changed paths:
    M libcxx/CMakeLists.txt

  Log Message:
  -----------
  libcxx 'LLVM_USE_SANITIZER=Address;Undefined'

Summary:
Allow users to simultaneously enable address and undefined behavior
sanitizers, in the same manner that LLVM's 'HandleLLVMOptions.cmake'
allows.

Prior to this patch, `cmake -DLLVM_USE_SANITIZER="Address;Undefined"`
would succeed and the build would build most of the LLVM project with
`-fsanitize=address,undefined`, but a warning would be printed by
libcxx's CMake, and the build would use neither sanitizer. This
patch results in no warning being printed, and both sanitizers are used
in building libcxx.

Reviewers: jroelofs, EricWF, ldionne, #libc!

Subscribers: mgorny, dexonsmith, llvm-commits, libcxx-commits

Tags: #libc

Differential Revision: https://reviews.llvm.org/D77466