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Change Constant::getNullConstant to Constant::getNullValue

llvm-svn: 2323
This commit is contained in:
Chris Lattner 2002-04-27 02:25:14 +00:00
parent dfdfae42df
commit 078d292f4c
6 changed files with 14 additions and 17 deletions

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@ -115,7 +115,7 @@ InductionVariable::InductionVariable(PHINode *P, cfg::LoopInfo *LoopInfo) {
Step = 0;
if (V2 == Phi) { // referencing the PHI directly? Must have zero step
Step = Constant::getNullConstant(Phi->getType());
Step = Constant::getNullValue(Phi->getType());
} else if (BinaryOperator *I = dyn_cast<BinaryOperator>(V2)) {
// TODO: This could be much better...
if (I->getOpcode() == Instruction::Add) {
@ -143,7 +143,7 @@ InductionVariable::InductionVariable(PHINode *P, cfg::LoopInfo *LoopInfo) {
if (StepE.Offset)
Step = (Value*)StepE.Offset;
else
Step = Constant::getNullConstant(Step->getType());
Step = Constant::getNullValue(Step->getType());
const Type *ETy = Phi->getType();
if (ETy->isPointerType()) ETy = Type::ULongTy;
Step = (Value*)(StepE.Offset ? StepE.Offset : ConstantInt::get(ETy,0));

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@ -1205,11 +1205,10 @@ CreateCopyInstructionsByType(const TargetMachine& target,
// Use (unsigned long) 0 for a NULL pointer value.
//
const Type* zeroValueType =
(resultType->getPrimitiveID() == Type::PointerTyID)? Type::ULongTy
: resultType;
isa<PointerType>(resultType) ? Type::ULongTy : resultType;
MachineInstr* minstr = new MachineInstr(opCode);
minstr->SetMachineOperandVal(0, MachineOperand::MO_VirtualRegister,
Constant::getNullConstant(zeroValueType));
Constant::getNullValue(zeroValueType));
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister, src);
minstr->SetMachineOperandVal(2, MachineOperand::MO_VirtualRegister,dest);
minstrVec.push_back(minstr);

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@ -386,7 +386,7 @@ Value *ConvertExpressionToType(Value *V, const Type *Ty, ValueMapCache &VMC) {
ValueHandle IHandle(VMC, I); // Prevent I from being removed!
Constant *Dummy = Constant::getNullConstant(Ty);
Constant *Dummy = Constant::getNullValue(Ty);
switch (I->getOpcode()) {
case Instruction::Cast:
@ -415,7 +415,7 @@ Value *ConvertExpressionToType(Value *V, const Type *Ty, ValueMapCache &VMC) {
LoadInst *LI = cast<LoadInst>(I);
assert(!LI->hasIndices() || AllIndicesZero(LI));
Res = new LoadInst(Constant::getNullConstant(PointerType::get(Ty)), Name);
Res = new LoadInst(Constant::getNullValue(PointerType::get(Ty)), Name);
VMC.ExprMap[I] = Res;
Res->setOperand(0, ConvertExpressionToType(LI->getPointerOperand(),
PointerType::get(Ty), VMC));
@ -499,7 +499,7 @@ Value *ConvertExpressionToType(Value *V, const Type *Ty, ValueMapCache &VMC) {
Indices, &It);
if (ElTy) {
assert(ElTy == PVTy && "Internal error, setup wrong!");
Res = new GetElementPtrInst(Constant::getNullConstant(NewSrcTy),
Res = new GetElementPtrInst(Constant::getNullValue(NewSrcTy),
Indices, Name);
VMC.ExprMap[I] = Res;
Res->setOperand(0, ConvertExpressionToType(I->getOperand(0),
@ -514,7 +514,7 @@ Value *ConvertExpressionToType(Value *V, const Type *Ty, ValueMapCache &VMC) {
//
if (Res == 0) {
const PointerType *NewSrcTy = PointerType::get(PVTy);
Res = new GetElementPtrInst(Constant::getNullConstant(NewSrcTy),
Res = new GetElementPtrInst(Constant::getNullValue(NewSrcTy),
GEP->copyIndices(), Name);
VMC.ExprMap[I] = Res;
Res->setOperand(0, ConvertExpressionToType(I->getOperand(0),
@ -925,7 +925,7 @@ static void ConvertOperandToType(User *U, Value *OldVal, Value *NewVal,
const Type *NewTy = NewVal->getType();
Constant *Dummy = (NewTy != Type::VoidTy) ?
Constant::getNullConstant(NewTy) : 0;
Constant::getNullValue(NewTy) : 0;
switch (I->getOpcode()) {
case Instruction::Cast:
@ -1001,7 +1001,7 @@ static void ConvertOperandToType(User *U, Value *OldVal, Value *NewVal,
case Instruction::Store: {
if (I->getOperand(0) == OldVal) { // Replace the source value
const PointerType *NewPT = PointerType::get(NewTy);
Res = new StoreInst(NewVal, Constant::getNullConstant(NewPT));
Res = new StoreInst(NewVal, Constant::getNullValue(NewPT));
VMC.ExprMap[I] = Res;
Res->setOperand(1, ConvertExpressionToType(I->getOperand(1), NewPT, VMC));
} else { // Replace the source pointer
@ -1015,7 +1015,7 @@ static void ConvertOperandToType(User *U, Value *OldVal, Value *NewVal,
assert(Offset == 0 && ValTy);
}
Res = new StoreInst(Constant::getNullConstant(ValTy), NewVal, Indices);
Res = new StoreInst(Constant::getNullValue(ValTy), NewVal, Indices);
VMC.ExprMap[I] = Res;
Res->setOperand(0, ConvertExpressionToType(I->getOperand(0), ValTy, VMC));
}

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@ -108,10 +108,8 @@ static bool RemoveSingularPHIs(BasicBlock *BB) {
}
static void ReplaceUsesWithConstant(Instruction *I) {
Constant *CPV = Constant::getNullConstant(I->getType());
// Make all users of this instruction reference the constant instead
I->replaceAllUsesWith(CPV);
I->replaceAllUsesWith(Constant::getNullValue(I->getType()));
}
// PropogatePredecessors - This gets "Succ" ready to have the predecessors from

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@ -101,7 +101,7 @@ static bool TransformLoop(cfg::LoopInfo *Loops, cfg::Loop *Loop) {
assert(PI == pred_end(Header) && "Loop headers should have 2 preds!");
// Add incoming values for the PHI node...
PN->addIncoming(Constant::getNullConstant(Type::UIntTy), Incoming);
PN->addIncoming(Constant::getNullValue(Type::UIntTy), Incoming);
PN->addIncoming(Add, BackEdgeBlock);
// Analyze the new induction variable...

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@ -123,7 +123,7 @@ Instruction *InstCombiner::visitSub(BinaryOperator *I) {
//
if (Constant *Op2 = dyn_cast<Constant>(I->getOperand(1)))
// Calculate 0 - RHS
if (Constant *RHS = *Constant::getNullConstant(I->getType()) - *Op2) {
if (Constant *RHS = *Constant::getNullValue(I->getType()) - *Op2) {
return BinaryOperator::create(Instruction::Add, I->getOperand(0), RHS,
I->getName());
}