[llvm-commits] [llvm] r154307 - /llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

[Craig Topper]

Author: ctopper
Date: Mon Apr  9 00:55:33 2012
New Revision: 154307

URL: http://llvm.org/viewvc/llvm-project?rev=154307&view=rev
Log:
Optimize code slightly. No functionality change.

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

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp?rev=154307&r1=154306&r2=154307&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Mon Apr  9 00:55:33 2012
@@ -7723,12 +7723,13 @@
     SmallVector<int, 8> NewMask;
     for (unsigned i = 0; i != NumElts; ++i) {
       int Idx = SVN->getMaskElt(i);
-      if (Idx < 0)
-        NewMask.push_back(Idx);
-      else if (Idx < (int)NumElts)
-        NewMask.push_back(Idx + NumElts);
-      else
-        NewMask.push_back(Idx - NumElts);
+      if (Idx >= 0) {
+        if (Idx < (int)NumElts)
+          Idx += NumElts;
+        else
+          Idx -= NumElts;
+      }
+      NewMask.push_back(Idx);
     }
     return DAG.getVectorShuffle(VT, N->getDebugLoc(), N1, DAG.getUNDEF(VT),
                                 &NewMask[0]);