[llvm] a000366 - [SimplifyIndVar] createWideIV - make WideIVInfo arg a const ref. NFCI.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2021-01-05T10:31:45Z
New Revision: a000366d0502b35fc0d3b113ace7f0e3bbdc08cd

URL: https://github.com/llvm/llvm-project/commit/a000366d0502b35fc0d3b113ace7f0e3bbdc08cd
DIFF: https://github.com/llvm/llvm-project/commit/a000366d0502b35fc0d3b113ace7f0e3bbdc08cd.diff

LOG: [SimplifyIndVar] createWideIV - make WideIVInfo arg a const ref. NFCI.

The WideIVInfo arg is only ever used as a const.

Fixes cppcheck warning.

Added: 
    

Modified: 
    llvm/include/llvm/Transforms/Utils/SimplifyIndVar.h
    llvm/lib/Transforms/Utils/SimplifyIndVar.cpp

Removed: 
    


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diff  --git a/llvm/include/llvm/Transforms/Utils/SimplifyIndVar.h b/llvm/include/llvm/Transforms/Utils/SimplifyIndVar.h
index 4599627b65f5..4ba56fb45afa 100644
--- a/llvm/include/llvm/Transforms/Utils/SimplifyIndVar.h
+++ b/llvm/include/llvm/Transforms/Utils/SimplifyIndVar.h
@@ -74,7 +74,7 @@ struct WideIVInfo {
 
 /// Widen Induction Variables - Extend the width of an IV to cover its
 /// widest uses.
-PHINode *createWideIV(WideIVInfo &WI,
+PHINode *createWideIV(const WideIVInfo &WI,
     LoopInfo *LI, ScalarEvolution *SE, SCEVExpander &Rewriter,
     DominatorTree *DT, SmallVectorImpl<WeakTrackingVH> &DeadInsts,
     unsigned &NumElimExt, unsigned &NumWidened,

diff  --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
index f3b198094bd1..290c04a7ad10 100644
--- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
@@ -2076,7 +2076,7 @@ void WidenIV::calculatePostIncRanges(PHINode *OrigPhi) {
   }
 }
 
-PHINode *llvm::createWideIV(WideIVInfo &WI,
+PHINode *llvm::createWideIV(const WideIVInfo &WI,
     LoopInfo *LI, ScalarEvolution *SE, SCEVExpander &Rewriter,
     DominatorTree *DT, SmallVectorImpl<WeakTrackingVH> &DeadInsts,
     unsigned &NumElimExt, unsigned &NumWidened,