using std::map;
using std::pair;
using std::make_pair;
+using std::vector;
ConstantBool *ConstantBool::True = new ConstantBool(true);
ConstantBool *ConstantBool::False = new ConstantBool(false);
while (!use_empty()) {
Value *V = use_back();
#ifndef NDEBUG // Only in -g mode...
- if (!isa<Constant>(V)) {
- std::cerr << "While deleting: ";
- dump();
- std::cerr << "\nUse still stuck around after Def is destroyed: ";
- V->dump();
- std::cerr << "\n";
- }
+ if (!isa<Constant>(V))
+ std::cerr << "While deleting: " << *this
+ << "\n\nUse still stuck around after Def is destroyed: "
+ << *V << "\n\n";
#endif
assert(isa<Constant>(V) && "References remain to Constant being destroyed");
Constant *CPV = cast<Constant>(V);
}
ConstantExpr::ConstantExpr(unsigned opCode, Constant* C,
- const std::vector<Value*>& IdxList, const Type *Ty)
+ const std::vector<Constant*> &IdxList, const Type *Ty)
: Constant(Ty), iType(opCode) {
Operands.reserve(1+IdxList.size());
Operands.push_back(Use(C, this));
// classof implementations
bool ConstantInt::classof(const Constant *CPV) {
- return CPV->getType()->isIntegral() && ! isa<ConstantExpr>(CPV);
+ return CPV->getType()->isIntegral() && !isa<ConstantExpr>(CPV);
}
bool ConstantSInt::classof(const Constant *CPV) {
- return CPV->getType()->isSigned() && ! isa<ConstantExpr>(CPV);
+ return CPV->getType()->isSigned() && !isa<ConstantExpr>(CPV);
}
bool ConstantUInt::classof(const Constant *CPV) {
- return CPV->getType()->isUnsigned() && ! isa<ConstantExpr>(CPV);
+ return CPV->getType()->isUnsigned() && !isa<ConstantExpr>(CPV);
}
bool ConstantFP::classof(const Constant *CPV) {
const Type *Ty = CPV->getType();
return ((Ty == Type::FloatTy || Ty == Type::DoubleTy) &&
- ! isa<ConstantExpr>(CPV));
+ !isa<ConstantExpr>(CPV));
}
bool ConstantArray::classof(const Constant *CPV) {
- return isa<ArrayType>(CPV->getType()) && ! isa<ConstantExpr>(CPV);
+ return isa<ArrayType>(CPV->getType()) && !isa<ConstantExpr>(CPV);
}
bool ConstantStruct::classof(const Constant *CPV) {
- return isa<StructType>(CPV->getType()) && ! isa<ConstantExpr>(CPV);
+ return isa<StructType>(CPV->getType()) && !isa<ConstantExpr>(CPV);
}
bool ConstantPointer::classof(const Constant *CPV) {
- return (isa<PointerType>(CPV->getType()) && ! isa<ConstantExpr>(CPV));
+ return (isa<PointerType>(CPV->getType()) && !isa<ConstantExpr>(CPV));
}
//---- ConstantExpr::get() implementations...
// Return NULL on invalid expressions.
//
-ConstantExpr*
-ConstantExpr::get(unsigned opCode, Constant *C, const Type *Ty) {
- if (opCode != Instruction::Cast &&
- (opCode < Instruction::FirstUnaryOp ||
- opCode >= Instruction::NumUnaryOps)) {
- cerr << "Invalid opcode " << ConstantExpr::getOpcodeName(opCode)
- << " in unary constant expression" << endl;
- return NULL; // Not Cast or other unary opcode
- }
+typedef pair<unsigned, vector<Constant*> > ExprMapKeyType;
+static ValueMap<const ExprMapKeyType, ConstantExpr> ExprConstants;
+
+ConstantExpr *ConstantExpr::get(unsigned Opcode, Constant *C, const Type *Ty) {
+
+ // Look up the constant in the table first to ensure uniqueness
+ vector<Constant*> argVec(1, C);
+ const ExprMapKeyType &Key = make_pair(Opcode, argVec);
+ ConstantExpr *Result = ExprConstants.get(Ty, Key);
+ if (Result) return Result;
+
+ // Its not in the table so create a new one and put it in the table.
+ // Check the operands for consistency first
+ assert(Opcode == Instruction::Cast ||
+ (Opcode >= Instruction::FirstUnaryOp &&
+ Opcode < Instruction::NumUnaryOps) &&
+ "Invalid opcode in unary ConstantExpr!");
+
// type of operand will not match result for Cast operation
- if (opCode != Instruction::Cast && Ty != C->getType()) {
- cerr << "Type of operand in unary constant expression should match result" << endl;
- return NULL;
- }
- return new ConstantExpr(opCode, C, Ty);
+ assert((Opcode == Instruction::Cast || Ty == C->getType()) &&
+ "Type of operand in unary constant expression should match result");
+
+ Result = new ConstantExpr(Opcode, C, Ty);
+ ExprConstants.add(Ty, Key, Result);
+ return Result;
}
-ConstantExpr*
-ConstantExpr::get(unsigned opCode, Constant *C1, Constant *C2,const Type *Ty) {
- if (opCode < Instruction::FirstBinaryOp ||
- opCode >= Instruction::NumBinaryOps) {
- cerr << "Invalid opcode " << ConstantExpr::getOpcodeName(opCode)
- << " in binary constant expression" << endl;
- return NULL;
- }
- if (Ty != C1->getType() || Ty != C2->getType()) {
- cerr << "Types of both operands in binary constant expression should match result" << endl;
- return NULL;
- }
- return new ConstantExpr(opCode, C1, C2, Ty);
+ConstantExpr *ConstantExpr::get(unsigned Opcode, Constant *C1, Constant *C2,
+ const Type *Ty) {
+
+ // Look up the constant in the table first to ensure uniqueness
+ vector<Constant*> argVec(1, C1); argVec.push_back(C2);
+ const ExprMapKeyType &Key = make_pair(Opcode, argVec);
+ ConstantExpr *Result = ExprConstants.get(Ty, Key);
+ if (Result) return Result;
+
+ // Its not in the table so create a new one and put it in the table.
+ // Check the operands for consistency first
+ assert((Opcode >= Instruction::FirstBinaryOp &&
+ Opcode < Instruction::NumBinaryOps) &&
+ "Invalid opcode in binary constant expression");
+
+ assert(Ty == C1->getType() && Ty == C2->getType() &&
+ "Operand types in binary constant expression should match result");
+
+ Result = new ConstantExpr(Opcode, C1, C2, Ty);
+ ExprConstants.add(Ty, Key, Result);
+ return Result;
}
-ConstantExpr*
-ConstantExpr::get(unsigned opCode, Constant*C,
- const std::vector<Value*>& idxList, const Type *Ty) {
+ConstantExpr *ConstantExpr::get(unsigned Opcode, Constant *C,
+ const std::vector<Constant*> &IdxList,
+ const Type *Ty) {
+
+ // Look up the constant in the table first to ensure uniqueness
+ vector<Constant*> argVec(1, C);
+ argVec.insert(argVec.end(), IdxList.begin(), IdxList.end());
+
+ const ExprMapKeyType &Key = make_pair(Opcode, argVec);
+ ConstantExpr *Result = ExprConstants.get(Ty, Key);
+ if (Result) return Result;
+
+ // Its not in the table so create a new one and put it in the table.
+ // Check the operands for consistency first
// Must be a getElementPtr. Check for valid getElementPtr expression.
//
- if (opCode != Instruction::GetElementPtr) {
- cerr << "operator other than GetElementPtr used with an index list" << endl;
- return NULL;
- }
- if (!isa<ConstantPointer>(C)) {
- cerr << "Constant GelElementPtr expression using something other than a constant pointer" << endl;
- return NULL;
- }
- if (!isa<PointerType>(Ty)) {
- cerr << "Non-pointer type for constant GelElementPtr expression" << endl;
- return NULL;
- }
- const Type* fldType = GetElementPtrInst::getIndexedType(C->getType(),
- idxList, true);
- if (!fldType) {
- cerr << "Invalid index list for constant GelElementPtr expression" << endl;
- return NULL;
- }
- if (cast<PointerType>(Ty)->getElementType() != fldType) {
- cerr << "Type for constant GelElementPtr expression does not match field type" << endl;
- return NULL;
- }
+ assert(Opcode == Instruction::GetElementPtr &&
+ "Operator other than GetElementPtr used with an index list");
+
+ assert(isa<PointerType>(Ty) &&
+ "Non-pointer type for constant GelElementPtr expression");
+
+ std::vector<Value*> ValIdxList(IdxList.begin(), IdxList.end());
+ const Type *fldType = GetElementPtrInst::getIndexedType(C->getType(),
+ ValIdxList, true);
+ assert(fldType && "Invalid index list for constant GelElementPtr expression");
+
+ assert(cast<PointerType>(Ty)->getElementType() == fldType &&
+ "Type for constant GelElementPtr expression doesn't match field type");
- return new ConstantExpr(opCode, C, idxList, Ty);
+ Result = new ConstantExpr(Opcode, C, IdxList, Ty);
+ ExprConstants.add(Ty, Key, Result);
+ return Result;
+}
+
+// destroyConstant - Remove the constant from the constant table...
+//
+void ConstantExpr::destroyConstant() {
+ ExprConstants.remove(this);
+ destroyConstantImpl();
}
-const char*
-ConstantExpr::getOpcodeName(unsigned opCode) {
- return Instruction::getOpcodeName(opCode);
+const char *ConstantExpr::getOpcodeName(unsigned Opcode) {
+ return Instruction::getOpcodeName(Opcode);
}
//---- ConstantPointerRef::mutateReferences() implementation...
//
-unsigned
-ConstantPointerRef::mutateReferences(Value* OldV, Value *NewV) {
+unsigned ConstantPointerRef::mutateReferences(Value *OldV, Value *NewV) {
assert(getValue() == OldV && "Cannot mutate old value if I'm not using it!");
- GlobalValue* NewGV = cast<GlobalValue>(NewV);
+ GlobalValue *NewGV = cast<GlobalValue>(NewV);
getValue()->getParent()->mutateConstantPointerRef(getValue(), NewGV);
Operands[0] = NewGV;
return 1;
//---- ConstantPointerExpr::mutateReferences() implementation...
//
-unsigned
-ConstantExpr::mutateReferences(Value* OldV, Value *NewV) {
- unsigned numReplaced = 0;
- Constant* NewC = cast<Constant>(NewV);
- for (unsigned i=0, N = getNumOperands(); i < N; ++i)
+unsigned ConstantExpr::mutateReferences(Value* OldV, Value *NewV) {
+ unsigned NumReplaced = 0;
+ Constant *NewC = cast<Constant>(NewV);
+ for (unsigned i = 0, N = getNumOperands(); i != N; ++i)
if (Operands[i] == OldV) {
- ++numReplaced;
+ ++NumReplaced;
Operands[i] = NewC;
}
- return numReplaced;
+ return NumReplaced;
}
projects / oota-llvm.git / blobdiff