[llvm] r300091 - [SelectionDAG] Use APInt move assignment to avoid 2 memory allocations and copies when bit width is larger than 64-bits.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Wed Apr 12 13:39:27 2017
New Revision: 300091

URL: http://llvm.org/viewvc/llvm-project?rev=300091&view=rev
Log:
[SelectionDAG] Use APInt move assignment to avoid 2 memory allocations and copies when bit width is larger than 64-bits.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp?rev=300091&r1=300090&r2=300091&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp Wed Apr 12 13:39:27 2017
@@ -731,8 +731,8 @@ bool TargetLowering::SimplifyDemandedBit
       }
     }
 
-    KnownZero = KnownZeroOut;
-    KnownOne  = KnownOneOut;
+    KnownZero = std::move(KnownZeroOut);
+    KnownOne  = std::move(KnownOneOut);
     break;
   case ISD::SELECT:
     if (SimplifyDemandedBits(Op.getOperand(2), NewMask, KnownZero,