[llvm-commits] [llvm] r74551 - /llvm/trunk/lib/Analysis/ScalarEvolution.cpp

[Dan Gohman]

Author: djg
Date: Tue Jun 30 15:13:32 2009
New Revision: 74551

URL: http://llvm.org/viewvc/llvm-project?rev=74551&view=rev
Log:
Minor code cleanups.

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=74551&r1=74550&r2=74551&view=diff

==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Tue Jun 30 15:13:32 2009
@@ -110,7 +110,9 @@
 //===----------------------------------------------------------------------===//
 // Implementation of the SCEV class.
 //
+
 SCEV::~SCEV() {}
+
 void SCEV::dump() const {
   print(errs());
   errs() << '\n';
@@ -387,7 +389,6 @@
   return true;
 }
 
-
 void SCEVAddRecExpr::print(raw_ostream &OS) const {
   OS << "{" << *Operands[0];
   for (unsigned i = 1, e = Operands.size(); i != e; ++i)
@@ -743,6 +744,7 @@
          "This is not a conversion to a SCEVable type!");
   Ty = getEffectiveSCEVType(Ty);
 
+  // Fold if the operand is constant.
   if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(Op))
     return getConstant(
       cast<ConstantInt>(ConstantExpr::getTrunc(SC->getValue(), Ty)));
@@ -787,6 +789,7 @@
          "This is not a conversion to a SCEVable type!");
   Ty = getEffectiveSCEVType(Ty);
 
+  // Fold if the operand is constant.
   if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(Op)) {
     const Type *IntTy = getEffectiveSCEVType(Ty);
     Constant *C = ConstantExpr::getZExt(SC->getValue(), IntTy);
@@ -882,6 +885,7 @@
          "This is not a conversion to a SCEVable type!");
   Ty = getEffectiveSCEVType(Ty);
 
+  // Fold if the operand is constant.
   if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(Op)) {
     const Type *IntTy = getEffectiveSCEVType(Ty);
     Constant *C = ConstantExpr::getSExt(SC->getValue(), IntTy);
@@ -4241,7 +4245,7 @@
 
     // The maximum backedge count is similar, except using the minimum start
     // value and the maximum end value.
-    const SCEV* MaxBECount = getBECount(MinStart, MaxEnd, Step);;
+    const SCEV* MaxBECount = getBECount(MinStart, MaxEnd, Step);
 
     return BackedgeTakenInfo(BECount, MaxBECount);
   }