[llvm-commits] [llvm] r124126 - /llvm/trunk/lib/Analysis/ScalarEvolution.cpp

[Dan Gohman]

Author: djg
Date: Mon Jan 24 11:54:18 2011
New Revision: 124126

URL: http://llvm.org/viewvc/llvm-project?rev=124126&view=rev
Log:
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Modified:
    llvm/trunk/lib/Analysis/ScalarEvolution.cpp

Modified: llvm/trunk/lib/Analysis/ScalarEvolution.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ScalarEvolution.cpp?rev=124126&r1=124125&r2=124126&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Mon Jan 24 11:54:18 2011
@@ -3126,6 +3126,7 @@
 ///
 ConstantRange
 ScalarEvolution::getSignedRange(const SCEV *S) {
+  // See if we've computed this range already.
   DenseMap<const SCEV *, ConstantRange>::iterator I = SignedRanges.find(S);
   if (I != SignedRanges.end())
     return I->second;