[all-commits] [llvm/llvm-project] 12d8e7: [cmake][msvc] Enable standards-conforming preproce...

[Jan Svoboda via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 12d8e7c6ade55bba241259312e3e4bdcf6aeab81
      https://github.com/llvm/llvm-project/commit/12d8e7c6ade55bba241259312e3e4bdcf6aeab81
  Author: Jan Svoboda <jan_svoboda at apple.com>
  Date:   2022-11-02 (Wed, 02 Nov 2022)

  Changed paths:
    M llvm/cmake/modules/HandleLLVMOptions.cmake

  Log Message:
  -----------
  [cmake][msvc] Enable standards-conforming preprocessor

Since we now only support Visual Studio 2019 16.7 and newer, we're able to use the /Zc:preprocessor flag that turns on the standards-conforming preprocessor. Among other things, it correctly expands __VA_ARGS__. This enables removal of some boilerplate in D135128.

Reviewed By: Bigcheese, thieta

Differential Revision: https://reviews.llvm.org/D135128