[PATCH] D108114: [LoopPeel] Peel if it turns invariant loads dereferenceable.

Dmitry Makogon via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Oct 8 04:14:53 PDT 2021


dmakogon added inline comments.


================
Comment at: llvm/lib/Transforms/Utils/LoopPeel.cpp:176
+                                                      DominatorTree &DT,
+                                                      ScalarEvolution &SE) {
+  // Skip loops with a single exiting block, because there should be no benefit
----------------
Seems like there's no need of the SE now


================
Comment at: llvm/lib/Transforms/Utils/LoopPeel.cpp:183
+  // All non-latch exits need to be terminated by unreachable. Otherwise the
+  // heuristic below may not be profitable.
+  SmallVector<BasicBlock *, 4> Exits;
----------------
fhahn wrote:
> mkazantsev wrote:
> > Can we reuse logic from D110922? OK if it's done in a follow-up, just consider this.
> I just saw that D110922 got reverted again. I'll submit a follow-up once the patch has settled.
D110922 is relanded now


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D108114/new/

https://reviews.llvm.org/D108114



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