[flang-commits] [flang] [flang][Driver] Enable -Os and -Oz in flang (PR #164707)

[Tarun Prabhu via flang-commits]

tarunprabhu wrote:

Note to reviewers: Please disregard any changes that you see in this PR until I change it back out of draft mode.

https://github.com/llvm/llvm-project/pull/164707