[PATCH] D39017: [CMake] Build Fuchsia toolchain as -O3

[Petr Hosek via Phabricator via cfe-commits]

phosek added a comment.

It seems like with the current patch, CMake already sets `-Wl,-O3` so that should be sufficient.


Repository:
  rL LLVM

https://reviews.llvm.org/D39017