// a <badref>
//
if (!use_empty()) {
- DOUT << "While deleting: " << *VTy << " %" << getNameStr() << "\n";
+ cerr << "While deleting: " << *VTy << " %" << getNameStr() << "\n";
for (use_iterator I = use_begin(), E = use_end(); I != E; ++I)
- DOUT << "Use still stuck around after Def is destroyed:"
+ cerr << "Use still stuck around after Def is destroyed:"
<< **I << "\n";
}
#endif
Value *Value::stripPointerCasts() {
if (!isa<PointerType>(getType()))
return this;
-
- if (ConstantExpr *CE = dyn_cast<ConstantExpr>(this)) {
- if (CE->getOpcode() == Instruction::BitCast) {
- return CE->getOperand(0)->stripPointerCasts();
- } else if (CE->getOpcode() == Instruction::GetElementPtr) {
- for (unsigned i = 1, e = CE->getNumOperands(); i != e; ++i)
- if (!CE->getOperand(i)->isNullValue())
- return this;
- return CE->getOperand(0)->stripPointerCasts();
+ Value *V = this;
+ do {
+ if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
+ if (CE->getOpcode() == Instruction::GetElementPtr) {
+ for (unsigned i = 1, e = CE->getNumOperands(); i != e; ++i)
+ if (!CE->getOperand(i)->isNullValue())
+ return V;
+ V = CE->getOperand(0);
+ } else if (CE->getOpcode() == Instruction::BitCast) {
+ V = CE->getOperand(0);
+ } else {
+ return V;
+ }
+ } else if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(V)) {
+ if (!GEP->hasAllZeroIndices())
+ return V;
+ V = GEP->getOperand(0);
+ } else if (BitCastInst *CI = dyn_cast<BitCastInst>(V)) {
+ V = CI->getOperand(0);
+ } else {
+ return V;
}
- } else if (BitCastInst *CI = dyn_cast<BitCastInst>(this)) {
- return CI->getOperand(0)->stripPointerCasts();
- } else if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(this)) {
- if (GEP->hasAllZeroIndices())
- return GEP->getOperand(0)->stripPointerCasts();
- }
- return this;
+ assert(isa<PointerType>(V->getType()) && "Unexpected operand type!");
+ } while (1);
}
Value *Value::getUnderlyingObject() {
if (!isa<PointerType>(getType()))
return this;
-
- if (Instruction *I = dyn_cast<Instruction>(this)) {
- if (isa<BitCastInst>(I) || isa<GetElementPtrInst>(I))
- return I->getOperand(0)->getUnderlyingObject();
- } else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(this)) {
- if (CE->getOpcode() == Instruction::BitCast ||
- CE->getOpcode() == Instruction::GetElementPtr)
- return CE->getOperand(0)->getUnderlyingObject();
- }
- return this;
+ Value *V = this;
+ do {
+ if (Instruction *I = dyn_cast<Instruction>(V)) {
+ if (!isa<BitCastInst>(I) && !isa<GetElementPtrInst>(I))
+ return V;
+ V = I->getOperand(0);
+ } else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
+ if (CE->getOpcode() != Instruction::BitCast &&
+ CE->getOpcode() != Instruction::GetElementPtr)
+ return V;
+ V = CE->getOperand(0);
+ } else {
+ return V;
+ }
+ assert(isa<PointerType>(V->getType()) && "Unexpected operand type!");
+ } while (1);
}
-/// DoPHITranslation - If this value is a PHI node with CurBB as a its parent,
+/// DoPHITranslation - If this value is a PHI node with CurBB as its parent,
/// return the value in the PHI node corresponding to PredBB. If not, return
/// ourself. This is useful if you want to know the value something has in a
/// predecessor block.