[PATCH] D58851: [SCEV] Remove undef check for SCEVConstant (NFC)

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: mkazantsev, sanjoy.
Herald added subscribers: javed.absar, hiraditya.
Herald added a project: LLVM.

The value stored in SCEVConstant is of type ConstantInt*, which can
never be UndefValue. So we should never hit that code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D58851

Files:
  llvm/lib/Analysis/ScalarEvolution.cpp


Index: llvm/lib/Analysis/ScalarEvolution.cpp
===================================================================
--- llvm/lib/Analysis/ScalarEvolution.cpp
+++ llvm/lib/Analysis/ScalarEvolution.cpp
@@ -10824,8 +10824,6 @@
   return SCEVExprContains(S, [](const SCEV *S) {
     if (const auto *SU = dyn_cast<SCEVUnknown>(S))
       return isa<UndefValue>(SU->getValue());
-    else if (const auto *SC = dyn_cast<SCEVConstant>(S))
-      return isa<UndefValue>(SC->getValue());
     return false;
   });
 }


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