//===-- llvm/Instructions.h - Instruction subclass definitions --*- C++ -*-===//
-//
+//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
// This file exposes the class definitions of all of the subclasses of the
///
class AllocationInst : public UnaryInstruction {
protected:
- AllocationInst(const Type *Ty, Value *ArraySize, unsigned iTy,
+ AllocationInst(const Type *Ty, Value *ArraySize, unsigned iTy,
const std::string &Name = "", Instruction *InsertBefore = 0);
- AllocationInst(const Type *Ty, Value *ArraySize, unsigned iTy,
+ AllocationInst(const Type *Ty, Value *ArraySize, unsigned iTy,
const std::string &Name, BasicBlock *InsertAtEnd);
public:
/// getType - Overload to return most specific pointer type
///
inline const PointerType *getType() const {
- return reinterpret_cast<const PointerType*>(Instruction::getType());
+ return reinterpret_cast<const PointerType*>(Instruction::getType());
}
/// getAllocatedType - Return the type that is being allocated by the
LoadInst(const LoadInst &LI)
: UnaryInstruction(LI.getType(), Load, LI.getOperand(0)) {
setVolatile(LI.isVolatile());
-
+
#ifndef NDEBUG
AssertOK();
#endif
// StoreInst Class
//===----------------------------------------------------------------------===//
-/// StoreInst - an instruction for storing to memory
+/// StoreInst - an instruction for storing to memory
///
class StoreInst : public Instruction {
Use Ops[2];
void setVolatile(bool V) { SubclassData = V; }
/// Transparently provide more efficient getOperand methods.
- Value *getOperand(unsigned i) const {
+ Value *getOperand(unsigned i) const {
assert(i < 2 && "getOperand() out of range!");
return Ops[i];
}
}
void init(Value *Ptr, const std::vector<Value*> &Idx);
void init(Value *Ptr, Value *Idx0, Value *Idx1);
+ void init(Value *Ptr, Value *Idx);
public:
/// Constructors - Create a getelementptr instruction with a base pointer an
/// list of indices. The first ctor can optionally insert before an existing
GetElementPtrInst(Value *Ptr, const std::vector<Value*> &Idx,
const std::string &Name, BasicBlock *InsertAtEnd);
- /// Constructors - These two constructors are convenience methods because two
- /// index getelementptr instructions are so common.
+ /// Constructors - These two constructors are convenience methods because one
+ /// and two index getelementptr instructions are so common.
+ GetElementPtrInst(Value *Ptr, Value *Idx,
+ const std::string &Name = "", Instruction *InsertBefore =0);
+ GetElementPtrInst(Value *Ptr, Value *Idx,
+ const std::string &Name, BasicBlock *InsertAtEnd);
GetElementPtrInst(Value *Ptr, Value *Idx0, Value *Idx1,
const std::string &Name = "", Instruction *InsertBefore =0);
GetElementPtrInst(Value *Ptr, Value *Idx0, Value *Idx1,
~GetElementPtrInst();
virtual GetElementPtrInst *clone() const;
-
+
// getType - Overload to return most specific pointer type...
inline const PointerType *getType() const {
return reinterpret_cast<const PointerType*>(Instruction::getType());
/// getIndexedType - Returns the type of the element that would be loaded with
/// a load instruction with the specified parameters.
///
- /// A null type is returned if the indices are invalid for the specified
+ /// A null type is returned if the indices are invalid for the specified
/// pointer type.
///
- static const Type *getIndexedType(const Type *Ptr,
+ static const Type *getIndexedType(const Type *Ptr,
const std::vector<Value*> &Indices,
bool AllowStructLeaf = false);
static const Type *getIndexedType(const Type *Ptr, Value *Idx0, Value *Idx1,
bool AllowStructLeaf = false);
-
+ static const Type *getIndexedType(const Type *Ptr, Value *Idx);
+
inline op_iterator idx_begin() { return op_begin()+1; }
inline const_op_iterator idx_begin() const { return op_begin()+1; }
inline op_iterator idx_end() { return op_end(); }
inline unsigned getNumIndices() const { // Note: always non-negative
return getNumOperands() - 1;
}
-
+
inline bool hasIndices() const {
return getNumOperands() > 1;
}
/// the instruction (i->getType()).
///
class CastInst : public UnaryInstruction {
- CastInst(const CastInst &CI)
+ CastInst(const CastInst &CI)
: UnaryInstruction(CI.getType(), Cast, CI.getOperand(0)) {
}
public:
//===----------------------------------------------------------------------===//
/// CallInst - This class represents a function call, abstracting a target
-/// machine's calling convention.
+/// machine's calling convention. This class uses low bit of the SubClassData
+/// field to indicate whether or not this is a tail call. The rest of the bits
+/// hold the calling convention of the call.
///
class CallInst : public Instruction {
CallInst(const CallInst &CI);
Instruction *InsertBefore = 0);
CallInst(Value *F, Value *Actual, const std::string& Name,
BasicBlock *InsertAtEnd);
- explicit CallInst(Value *F, const std::string &Name = "",
+ explicit CallInst(Value *F, const std::string &Name = "",
Instruction *InsertBefore = 0);
- explicit CallInst(Value *F, const std::string &Name,
+ explicit CallInst(Value *F, const std::string &Name,
BasicBlock *InsertAtEnd);
~CallInst();
virtual CallInst *clone() const;
bool mayWriteToMemory() const { return true; }
+ bool isTailCall() const { return SubclassData & 1; }
+ void setTailCall(bool isTailCall = true) {
+ SubclassData = (SubclassData & ~1) | unsigned(isTailCall);
+ }
+
+ /// getCallingConv/setCallingConv - Get or set the calling convention of this
+ /// function call.
+ unsigned getCallingConv() const { return SubclassData >> 1; }
+ void setCallingConv(unsigned CC) {
+ SubclassData = (SubclassData & 1) | (CC << 1);
+ }
+
/// getCalledFunction - Return the function being called by this instruction
/// if it is a direct call. If it is a call through a function pointer,
/// return null.
Function *getCalledFunction() const {
- return (Function*)dyn_cast<Function>(getOperand(0));
+ return static_cast<Function*>(dyn_cast<Function>(getOperand(0)));
}
// getCalledValue - Get a pointer to a method that is invoked by this inst.
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const CallInst *) { return true; }
static inline bool classof(const Instruction *I) {
- return I->getOpcode() == Instruction::Call;
+ return I->getOpcode() == Instruction::Call;
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const ShiftInst *) { return true; }
static inline bool classof(const Instruction *I) {
- return (I->getOpcode() == Instruction::Shr) |
+ return (I->getOpcode() == Instruction::Shr) |
(I->getOpcode() == Instruction::Shl);
}
static inline bool classof(const Value *V) {
/// getIncomingBlock - Return incoming basic block #x
///
- BasicBlock *getIncomingBlock(unsigned i) const {
+ BasicBlock *getIncomingBlock(unsigned i) const {
return reinterpret_cast<BasicBlock*>(getOperand(i*2+1));
}
void setIncomingBlock(unsigned i, BasicBlock *BB) {
OperandList[OpNo].init(V, this);
OperandList[OpNo+1].init(reinterpret_cast<Value*>(BB), this);
}
-
+
/// removeIncomingValue - Remove an incoming value. This is useful if a
/// predecessor basic block is deleted. The value removed is returned.
///
return removeIncomingValue(Idx, DeletePHIIfEmpty);
}
- /// getBasicBlockIndex - Return the first index of the specified basic
+ /// getBasicBlockIndex - Return the first index of the specified basic
/// block in the value list for this PHI. Returns -1 if no instance.
///
int getBasicBlockIndex(const BasicBlock *BB) const {
Use *OL = OperandList;
- for (unsigned i = 0, e = getNumOperands(); i != e; i += 2)
+ for (unsigned i = 0, e = getNumOperands(); i != e; i += 2)
if (OL[i+1] == reinterpret_cast<const Value*>(BB)) return i/2;
return -1;
}
/// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const PHINode *) { return true; }
static inline bool classof(const Instruction *I) {
- return I->getOpcode() == Instruction::PHI;
+ return I->getOpcode() == Instruction::PHI;
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
BasicBlock *getSuccessor(unsigned i) const {
assert(i < getNumSuccessors() && "Successor # out of range for Branch!");
- return (i == 0) ? cast<BasicBlock>(getOperand(0)) :
+ return (i == 0) ? cast<BasicBlock>(getOperand(0)) :
cast<BasicBlock>(getOperand(1));
}
/// be specified here to make memory allocation more efficient. This
/// constructor can also autoinsert before another instruction.
SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
- Instruction *InsertBefore = 0)
+ Instruction *InsertBefore = 0)
: TerminatorInst(Instruction::Switch, 0, 0, InsertBefore) {
init(Value, Default, NumCases);
}
/// be specified here to make memory allocation more efficient. This
/// constructor also autoinserts at the end of the specified BasicBlock.
SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
- BasicBlock *InsertAtEnd)
+ BasicBlock *InsertAtEnd)
: TerminatorInst(Instruction::Switch, 0, 0, InsertAtEnd) {
init(Value, Default, NumCases);
}
// successor.
inline ConstantInt *getSuccessorValue(unsigned idx) const {
assert(idx < getNumSuccessors() && "Successor # out of range!");
- return (ConstantInt*)getOperand(idx*2);
+ return reinterpret_cast<ConstantInt*>(getOperand(idx*2));
}
// Methods for support type inquiry through isa, cast, and dyn_cast:
//===----------------------------------------------------------------------===//
//===---------------------------------------------------------------------------
-/// InvokeInst - Invoke instruction
+
+/// InvokeInst - Invoke instruction. The SubclassData field is used to hold the
+/// calling convention of the call.
///
class InvokeInst : public TerminatorInst {
InvokeInst(const InvokeInst &BI);
bool mayWriteToMemory() const { return true; }
+ /// getCallingConv/setCallingConv - Get or set the calling convention of this
+ /// function call.
+ unsigned getCallingConv() const { return SubclassData; }
+ void setCallingConv(unsigned CC) {
+ SubclassData = CC;
+ }
+
/// getCalledFunction - Return the function called, or null if this is an
/// indirect function invocation.
///
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