[PATCH] D24826: [LTO] Add -flto-jobs=N to control backend parallelism

[Mehdi AMINI via cfe-commits]

mehdi_amini added a comment.

The Gold path looks fine. 
On OSX, we would have the clang driver relying on a LLVM cl::opt, for which I don't think there is any precedent. CC Duncan for advice.


https://reviews.llvm.org/D24826