Worklist.push_back(I);
}
+ void AddValue(Value *V) {
+ if (Instruction *I = dyn_cast<Instruction>(V))
+ Add(I);
+ }
+
// Remove - remove I from the worklist if it exists.
void Remove(Instruction *I) {
DenseMap<Instruction*, unsigned>::iterator It = WorklistMap.find(I);
LLVMContext *Context;
LLVMContext *getContext() const { return Context; }
- /// AddOperandsToWorkList - When an instruction is simplified, add operands
- /// to the work lists because they might get more simplified now.
- ///
- void AddOperandsToWorkList(Instruction &I) {
- for (User::op_iterator i = I.op_begin(), e = I.op_end(); i != e; ++i)
- if (Instruction *Op = dyn_cast<Instruction>(*i))
- Worklist.Add(Op);
- }
-
public:
virtual bool runOnFunction(Function &F);
assert(I.use_empty() && "Cannot erase instruction that is used!");
// Make sure that we reprocess all operands now that we reduced their
// use counts.
- if (I.getNumOperands() < 8)
- AddOperandsToWorkList(I);
+ if (I.getNumOperands() < 8) {
+ for (User::op_iterator i = I.op_begin(), e = I.op_end(); i != e; ++i)
+ if (Instruction *Op = dyn_cast<Instruction>(*i))
+ Worklist.Add(Op);
+ }
Worklist.Remove(&I);
I.eraseFromParent();
return 0; // Don't do anything with FI
(isa<ConstantInt>(RHSNeg) &&
cast<ConstantInt>(RHSNeg)->getValue().isStrictlyPositive())) {
// X % -Y -> X % Y
- AddOperandsToWorkList(I);
+ Worklist.AddValue(I.getOperand(1));
I.setOperand(1, RHSNeg);
return &I;
}
Constant *NewRHSV = ConstantVector::get(Elts);
if (NewRHSV != RHSV) {
- AddOperandsToWorkList(I);
+ Worklist.AddValue(I.getOperand(1));
I.setOperand(1, NewRHSV);
return &I;
}
LHSI->setOperand(1, NewAndCST);
LHSI->setOperand(0, Shift->getOperand(0));
Worklist.Add(Shift); // Shift is dead.
- AddOperandsToWorkList(ICI);
return &ICI;
}
}
// things that used it to use the new cast. This will also hack on CI, but it
// will die soon.
else if (!AI.hasOneUse()) {
- AddOperandsToWorkList(AI);
// New is the allocation instruction, pointer typed. AI is the original
// allocation instruction, also pointer typed. Thus, cast to use is BitCast.
CastInst *NewCast = new BitCastInst(New, AI.getType(), "tmpcast");
// be the same value, extract from the pre-inserted value instead.
if (isa<Constant>(IE->getOperand(2)) &&
isa<Constant>(EI.getOperand(1))) {
- AddOperandsToWorkList(EI);
+ Worklist.AddValue(EI.getOperand(0));
EI.setOperand(0, IE->getOperand(0));
return &EI;
}