[PATCH] D129793: [LSR] Allow already invariant operand for ICmpZero matching

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:3347
+            // a divide), but it is already at a loop invariant point, wrap it
+            // in an unknwon (to prevent the expander from trying to re-expand
+            // in a potentially unsafe way.)
----------------
unknwon -> unknown


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D129793/new/

https://reviews.llvm.org/D129793