[PATCH] D38336: Add an @llvm.sideeffect intrinsic

[Daniel Berlin via Phabricator via llvm-commits]

dberlin added a comment.

Is literally the only purpose to handle infinite loops?
If so, please tighten up the description a bit.
(Right now "indicate that the loop shouldn't be optimized away even if it's an infinite
loop with no other side effects."  would cover unreachable loops, etc).

Do you expect it to keep provably finite loops that have it alive.
IE a loop where we can prove the backedge is not taken?


Repository:
  rL LLVM

https://reviews.llvm.org/D38336