[all-commits] [llvm/llvm-project] 272829: [libc++] Only check for GCC's empty string storage...

[Louis Dionne via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 2728293bbc345a7c80fcd5ee0cc2ac3eac582bc8
      https://github.com/llvm/llvm-project/commit/2728293bbc345a7c80fcd5ee0cc2ac3eac582bc8
  Author: Louis Dionne <ldionne at apple.com>
  Date:   2020-11-13 (Fri, 13 Nov 2020)

  Changed paths:
    M libcxx/src/include/refstring.h

  Log Message:
  -----------
  [libc++] Only check for GCC's empty string storage on macOS and iOS

We don't need to do that on other Apple platforms, since they never
shipped libstdc++. I also added a comment extracted from the original
commit by Howard Hinnant (e115af2777f6).

Differential Revision: https://reviews.llvm.org/D91359