Strip trailing whitespace. NFCI.

llvm-svn: 329421

llvm/include/llvm/Transforms/Utils/LoopUtils.h

@@ -289,16 +289,16 @@ public:
   /// induction, the induction descriptor \p D will contain the data describing
   /// this induction. If by some other means the caller has a better SCEV
   /// expression for \p Phi than the one returned by the ScalarEvolution
-  /// analysis, it can be passed through \p Expr. If the def-use chain 
+  /// analysis, it can be passed through \p Expr. If the def-use chain
   /// associated with the phi includes casts (that we know we can ignore
   /// under proper runtime checks), they are passed through \p CastsToIgnore.
-  static bool 
+  static bool
   isInductionPHI(PHINode *Phi, const Loop* L, ScalarEvolution *SE,
                  InductionDescriptor &D, const SCEV *Expr = nullptr,
                  SmallVectorImpl<Instruction *> *CastsToIgnore = nullptr);
 
   /// Returns true if \p Phi is a floating point induction in the loop \p L.
-  /// If \p Phi is an induction, the induction descriptor \p D will contain 
+  /// If \p Phi is an induction, the induction descriptor \p D will contain
   /// the data describing this induction.
   static bool isFPInductionPHI(PHINode *Phi, const Loop* L,
                                ScalarEvolution *SE, InductionDescriptor &D);
@@ -334,11 +334,11 @@ public:
       Instruction::BinaryOpsEnd;
   }
 
-  /// Returns a reference to the type cast instructions in the induction 
+  /// Returns a reference to the type cast instructions in the induction
   /// update chain, that are redundant when guarded with a runtime
   /// SCEV overflow check.
-  const SmallVectorImpl<Instruction *> &getCastInsts() const { 
-    return RedundantCasts; 
+  const SmallVectorImpl<Instruction *> &getCastInsts() const {
+    return RedundantCasts;
   }
 
 private:

llvm/lib/Transforms/Utils/LoopUtils.cpp

@@ -923,13 +923,13 @@ bool InductionDescriptor::isFPInductionPHI(PHINode *Phi, const Loop *TheLoop,
 }
 
 /// This function is called when we suspect that the update-chain of a phi node
-/// (whose symbolic SCEV expression sin \p PhiScev) contains redundant casts, 
-/// that can be ignored. (This can happen when the PSCEV rewriter adds a runtime 
-/// predicate P under which the SCEV expression for the phi can be the 
-/// AddRecurrence \p AR; See createAddRecFromPHIWithCast). We want to find the 
-/// cast instructions that are involved in the update-chain of this induction. 
-/// A caller that adds the required runtime predicate can be free to drop these 
-/// cast instructions, and compute the phi using \p AR (instead of some scev 
+/// (whose symbolic SCEV expression sin \p PhiScev) contains redundant casts,
+/// that can be ignored. (This can happen when the PSCEV rewriter adds a runtime
+/// predicate P under which the SCEV expression for the phi can be the
+/// AddRecurrence \p AR; See createAddRecFromPHIWithCast). We want to find the
+/// cast instructions that are involved in the update-chain of this induction.
+/// A caller that adds the required runtime predicate can be free to drop these
+/// cast instructions, and compute the phi using \p AR (instead of some scev
 /// expression with casts).
 ///
 /// For example, without a predicate the scev expression can take the following
@@ -964,7 +964,7 @@ static bool getCastsForInductionPHI(PredicatedScalarEvolution &PSE,
   assert(PSE.getSCEV(PN) == AR && "Unexpected phi node SCEV expression");
   const Loop *L = AR->getLoop();
 
-  // Find any cast instructions that participate in the def-use chain of 
+  // Find any cast instructions that participate in the def-use chain of
   // PhiScev in the loop.
   // FORNOW/TODO: We currently expect the def-use chain to include only
   // two-operand instructions, where one of the operands is an invariant.