[llvm] 3f27684 - [X86] Use const APInt& in for-range loop to avoid unnecessary copies. NFCI.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2020-08-02T14:32:22+01:00
New Revision: 3f276840b6f8b2624f0bbeb6097d8049d27d5ca0

URL: https://github.com/llvm/llvm-project/commit/3f276840b6f8b2624f0bbeb6097d8049d27d5ca0
DIFF: https://github.com/llvm/llvm-project/commit/3f276840b6f8b2624f0bbeb6097d8049d27d5ca0.diff

LOG: [X86] Use const APInt& in for-range loop to avoid unnecessary copies. NFCI.

Fixes clang-tidy warning.

Added: 
    

Modified: 
    llvm/lib/Target/X86/X86ISelLowering.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index a16c3bf7ac51..ec34dcaaf95b 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -6686,7 +6686,7 @@ static bool getTargetShuffleMaskIndices(SDValue MaskNode,
     return false;
 
   // Insert the extracted elements into the mask.
-  for (APInt Elt : EltBits)
+  for (const APInt &Elt : EltBits)
     RawMask.push_back(Elt.getZExtValue());
 
   return true;