[llvm-commits] [llvm] r93932 - /llvm/trunk/lib/Analysis/ScalarEvolution.cpp

[Dan Gohman]

Author: djg
Date: Tue Jan 19 16:27:22 2010
New Revision: 93932

URL: http://llvm.org/viewvc/llvm-project?rev=93932&view=rev
Log:
Add a comment and tidy up some whitespace.

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=93932&r1=93931&r2=93932&view=diff

==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Tue Jan 19 16:27:22 2010
@@ -1530,7 +1530,6 @@
   return S;
 }
 
-
 /// getMulExpr - Get a canonical multiply expression, or something simpler if
 /// possible.
 const SCEV *ScalarEvolution::getMulExpr(SmallVectorImpl<const SCEV *> &Ops,
@@ -1558,7 +1557,6 @@
           return getAddExpr(getMulExpr(LHSC, Add->getOperand(0)),
                             getMulExpr(LHSC, Add->getOperand(1)));
 
-
     ++Idx;
     while (const SCEVConstant *RHSC = dyn_cast<SCEVConstant>(Ops[Idx])) {
       // We found two constants, fold them together!
@@ -1877,6 +1875,8 @@
     }
   }
 
+  // Okay, it looks like we really DO need an addrec expr.  Check to see if we
+  // already have one, otherwise create a new one.
   FoldingSetNodeID ID;
   ID.AddInteger(scAddRecExpr);
   ID.AddInteger(Operands.size());