move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h

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

diff --git a/lib/Analysis/InstructionSimplify.cpp b/lib/Analysis/InstructionSimplify.cpp
index ac21a9ae20b625bbe371581f43ce43aa329c3ffd..87125191ad0e77f429e177add08af6e2148b9ce6 100644 (file)
--- a/lib/Analysis/InstructionSimplify.cpp
+++ b/lib/Analysis/InstructionSimplify.cpp
@@ -298,7 +298,7 @@ static Value *SimplifyAndInst(Value *Op0, Value *Op1, const TargetData *TD,
     return Op0;
 
   // A & ~A  =  ~A & A  =  0
-  Value *A, *B;
+  Value *A = 0, *B = 0;
   if ((match(Op0, m_Not(m_Value(A))) && A == Op1) ||
       (match(Op1, m_Not(m_Value(A))) && A == Op0))
     return Constant::getNullValue(Op0->getType());
@@ -377,7 +377,7 @@ static Value *SimplifyOrInst(Value *Op0, Value *Op1, const TargetData *TD,
     return Op1;
 
   // A | ~A  =  ~A | A  =  -1
-  Value *A, *B;
+  Value *A = 0, *B = 0;
   if ((match(Op0, m_Not(m_Value(A))) && A == Op1) ||
       (match(Op1, m_Not(m_Value(A))) && A == Op0))
     return Constant::getAllOnesValue(Op0->getType());
@@ -452,7 +452,7 @@ static Value *SimplifyXorInst(Value *Op0, Value *Op1, const TargetData *TD,
     return Constant::getNullValue(Op0->getType());
 
   // A ^ ~A  =  ~A ^ A  =  -1
-  Value *A, *B;
+  Value *A = 0, *B = 0;
   if ((match(Op0, m_Not(m_Value(A))) && A == Op1) ||
       (match(Op1, m_Not(m_Value(A))) && A == Op0))
     return Constant::getAllOnesValue(Op0->getType());