[flang-commits] [clang] [flang] [clang][flang] Add support for -finit-local-zero (PR #159788)

[Tarun Prabhu via flang-commits]

https://github.com/tarunprabhu requested changes to this pull request.

Please change the title of this PR. Changes to the driver that are primarily intended for flang should still be labeled `[flang]`, even if they do modify files in `clang/`

https://github.com/llvm/llvm-project/pull/159788