[all-commits] [llvm/llvm-project] 813235: [CMake] Don't add -Wnon-virtual-dtor if affected b...

[Fangrui Song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 813235947d07890ea55a6de039261d0c409c8b42
      https://github.com/llvm/llvm-project/commit/813235947d07890ea55a6de039261d0c409c8b42
  Author: Fangrui Song <i at maskray.me>
  Date:   2021-09-07 (Tue, 07 Sep 2021)

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

  Log Message:
  -----------
  [CMake] Don't add -Wnon-virtual-dtor if affected by GCC PR102168

See the discussion on
https://reviews.llvm.org/rG4852c770fe8703145dd2a35395985646ce57a454
The GCC behavior (https://gcc.gnu.org/PR102168) seems unhelpful.

Unconditional -Wnon-virtual-dtor led to other unnecessary workarounds like
6df09d6ccbc0cb72d3278cafb592e9bc0e6b84a1

This patches uses a variant of the 4bb5f44c701402462cb93ef00d46d52382f39f11
check to detect GCC PR102168.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D109404