[PATCH] D137027: [llvm] Improve performance of programUndefinedIfUndefOrPoison

[Nikita Popov via Phabricator via llvm-commits]

nikic accepted this revision.
nikic added a comment.
This revision is now accepted and ready to land.

LGTM, thanks!



================
Comment at: llvm/lib/Analysis/ValueTracking.cpp:5748
+      if (propagatesPoison(cast<Operator>(&I))) {
+        for (const Use &U : I.operands()) {
+          if (YieldsPoison.count(U.get())) {
----------------
You can use `for (const Value *Op : I.operands())` here and use `Op` in place of `U.get()`, as you don't care about the specific position of the use in this case.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137027/new/

https://reviews.llvm.org/D137027