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[oota-llvm.git] / lib / Analysis / ScalarEvolution.cpp

diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 9db46a8639981a0323fbc5db164245125134c286..b0c1c75cb6abfc08791557e9d01f80f79b2858d4 100644 (file)
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -166,7 +166,7 @@ void SCEV::print(raw_ostream &OS) const {
   case scUMaxExpr:
   case scSMaxExpr: {
     const SCEVNAryExpr *NAry = cast<SCEVNAryExpr>(this);
-    const char *OpStr;
+    const char *OpStr = 0;
     switch (NAry->getSCEVType()) {
     case scAddExpr: OpStr = " + "; break;
     case scMulExpr: OpStr = " * "; break;
@@ -3367,8 +3367,8 @@ const SCEV *ScalarEvolution::createSCEV(Value *V) {
               // If C is a single bit, it may be in the sign-bit position
               // before the zero-extend. In this case, represent the xor
               // using an add, which is equivalent, and re-apply the zext.
-              APInt Trunc = APInt(CI->getValue()).trunc(Z0TySize);
-              if (APInt(Trunc).zext(getTypeSizeInBits(UTy)) == CI->getValue() &&
+              APInt Trunc = CI->getValue().trunc(Z0TySize);
+              if (Trunc.zext(getTypeSizeInBits(UTy)) == CI->getValue() &&
                   Trunc.isSignBit())
                 return getZeroExtendExpr(getAddExpr(Z0, getConstant(Trunc)),
                                          UTy);
@@ -4602,7 +4602,7 @@ static const SCEV *SolveLinEquationWithOverflow(const APInt &A, const APInt &B,
   // bit width during computations.
   APInt AD = A.lshr(Mult2).zext(BW + 1);  // AD = A / D
   APInt Mod(BW + 1, 0);
-  Mod.set(BW - Mult2);  // Mod = N / D
+  Mod.setBit(BW - Mult2);  // Mod = N / D
   APInt I = AD.multiplicativeInverse(Mod);
 
   // 4. Compute the minimum unsigned root of the equation:
@@ -5075,13 +5075,13 @@ bool ScalarEvolution::SimplifyICmpOperands(ICmpInst::Predicate &Pred,
 
 trivially_true:
   // Return 0 == 0.
-  LHS = RHS = getConstant(Type::getInt1Ty(getContext()), 0);
+  LHS = RHS = getConstant(ConstantInt::getFalse(getContext()));
   Pred = ICmpInst::ICMP_EQ;
   return true;
 
 trivially_false:
   // Return 0 != 0.
-  LHS = RHS = getConstant(Type::getInt1Ty(getContext()), 0);
+  LHS = RHS = getConstant(ConstantInt::getFalse(getContext()));
   Pred = ICmpInst::ICMP_NE;
   return true;
 }