[llvm-commits] [llvm] r112434 - /llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp

[Dan Gohman]

Author: djg
Date: Sun Aug 29 10:18:49 2010
New Revision: 112434

URL: http://llvm.org/viewvc/llvm-project?rev=112434&view=rev
Log:
Do one lookup instead of two.

Modified:
    llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp?rev=112434&r1=112433&r2=112434&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp Sun Aug 29 10:18:49 2010
@@ -161,9 +161,10 @@
 
 bool
 RegUseTracker::isRegUsedByUsesOtherThan(const SCEV *Reg, size_t LUIdx) const {
-  if (!RegUsesMap.count(Reg)) return false;
-  const SmallBitVector &UsedByIndices =
-    RegUsesMap.find(Reg)->second.UsedByIndices;
+  RegUsesTy::const_iterator I = RegUsesMap.find(Reg);
+  if (I == RegUsesMap.end())
+    return false;
+  const SmallBitVector &UsedByIndices = I->second.UsedByIndices;
   int i = UsedByIndices.find_first();
   if (i == -1) return false;
   if ((size_t)i != LUIdx) return true;