[llvm] r243167 - Remove unnecessary null check. NFC.

[Pete Cooper]

Author: pete
Date: Fri Jul 24 16:38:01 2015
New Revision: 243167

URL: http://llvm.org/viewvc/llvm-project?rev=243167&view=rev
Log:
Remove unnecessary null check.  NFC.

Since both places which set this variable do so with dyn_cast, and not
dyn_cast_or_null, its impossible to get a nullptr here, so we can remove
the check.

Modified:
    llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp?rev=243167&r1=243166&r2=243167&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopInterchange.cpp Fri Jul 24 16:38:01 2015
@@ -817,9 +817,6 @@ bool LoopInterchangeLegality::currentLim
     InnerIndexVarInc =
         dyn_cast<Instruction>(InnerInductionVar->getIncomingValue(0));
 
-  if (!InnerIndexVarInc)
-    return true;
-
   // Since we split the inner loop latch on this induction variable. Make sure
   // we do not have any instruction between the induction variable and branch
   // instruction.