[PATCH] D40334: [X86] Break false dependencies for POPCNT, LZCNT, TZCNT

[Zvi Rackover via Phabricator via llvm-commits]

zvi added a comment.

I think we will need a subtarget feature indicating whether the false-dependency on these instructions happens. For starters, does this happen in AMD processors?


Repository:
  rL LLVM

https://reviews.llvm.org/D40334