[PATCH] D52266: [clang-cl] Provide separate flags for all the /O variants

[Nico Weber via Phabricator via cfe-commits]

thakis added a comment.

FWIW the recommendation against /Ox in my version is because of https://github.com/ulfjack/ryu/pull/70#issuecomment-412168459


https://reviews.llvm.org/D52266