[PATCH] D105921: [SCEV] Handle zero stride correctly in howManyLessThans

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


================
Comment at: llvm/lib/Analysis/ScalarEvolution.cpp:11675
+      auto *StartIfZero = getMinusSCEV(IV->getStart(), Stride);
+      return isLoopEntryGuardedByCond(L, Cond, StartIfZero, RHS);
+    };
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We make exactly the same isLoopEntryGuardedByCond() call later; can we avoid calling it twice?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D105921/new/

https://reviews.llvm.org/D105921