//===-- llvm/Instruction.h - Instruction class definition -------*- 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 contains the declaration of the Instruction class, which is the
typename SubClass> class SymbolTableListTraits;
class Instruction : public User {
+ void operator=(const Instruction &); // Do not implement
+ Instruction(const Instruction &); // Do not implement
+
BasicBlock *Parent;
Instruction *Prev, *Next; // Next and Prev links for our intrusive linked list
friend class SymbolTableListTraits<Instruction, BasicBlock, Function,
ilist_traits<Instruction> >;
void setParent(BasicBlock *P);
- void init();
private:
// FIXME: This is a dirty hack. Setcc instructions shouldn't encode the CC
void setOpcode(unsigned NewOpcode);
friend class BinaryOperator;
protected:
- Instruction(const Type *Ty, unsigned iType, const std::string &Name = "",
+ Instruction(const Type *Ty, unsigned iType, Use *Ops, unsigned NumOps,
+ const std::string &Name = "",
Instruction *InsertBefore = 0);
- Instruction(const Type *Ty, unsigned iType, const std::string &Name,
- BasicBlock *InsertAtEnd);
+ Instruction(const Type *Ty, unsigned iType, Use *Ops, unsigned NumOps,
+ const std::string &Name, BasicBlock *InsertAtEnd);
public:
-
- ~Instruction() {
- assert(Parent == 0 && "Instruction still linked in the program!");
- }
-
- // Specialize setName to handle symbol table majik...
- virtual void setName(const std::string &name, SymbolTable *ST = 0);
+ // Out of line virtual method, so the vtable, etc has a home.
+ ~Instruction();
/// mayWriteToMemory - Return true if this instruction may modify memory.
///
/// extra information (e.g. load is volatile) agree.
bool isIdenticalTo(Instruction *I) const;
+ /// use_back - Specialize the methods defined in Value, as we know that an
+ /// instruction can only be used by other instructions.
+ Instruction *use_back() { return cast<Instruction>(*use_begin());}
+ const Instruction *use_back() const { return cast<Instruction>(*use_begin());}
// Accessor methods...
//
///
void eraseFromParent();
+ /// moveBefore - Unlink this instruction from its current basic block and
+ /// insert it into the basic block that MovePos lives in, right before
+ /// MovePos.
+ void moveBefore(Instruction *MovePos);
+
// ---------------------------------------------------------------------------
- /// Subclass classification... getOpcode() returns a member of
+ /// Subclass classification... getOpcode() returns a member of
/// one of the enums that is coming soon (down below)...
///
unsigned getOpcode() const { return getValueType() - InstructionVal; }
- virtual const char *getOpcodeName() const {
+ const char *getOpcodeName() const {
return getOpcodeName(getOpcode());
}
static const char* getOpcodeName(unsigned OpCode);
bool isCommutative() const { return isCommutative(getOpcode()); }
static bool isCommutative(unsigned op);
- /// isRelational - Return true if the instruction is a Set* instruction:
+ /// isComparison - Return true if the instruction is a Set* instruction:
///
- bool isRelational() const { return isRelational(getOpcode()); }
- static bool isRelational(unsigned op);
+ bool isComparison() const { return isComparison(getOpcode()); }
+ static bool isComparison(unsigned op);
/// isTrappingInstruction - Return true if the instruction may trap.
///
bool isTrapping() const {
- return isTrapping(getOpcode());
+ return isTrapping(getOpcode());
}
static bool isTrapping(unsigned op);
-
+
virtual void print(std::ostream &OS) const { print(OS, 0); }
void print(std::ostream &OS, AssemblyAnnotationWriter *AAW) const;
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const Instruction *I) { return true; }
+ static inline bool classof(const Instruction *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueType() >= Value::InstructionVal;
}
-
+
//----------------------------------------------------------------------
// Exported enumerations...
//
enum TermOps { // These terminate basic blocks
#define FIRST_TERM_INST(N) TermOpsBegin = N,
#define HANDLE_TERM_INST(N, OPC, CLASS) OPC = N,
-#define LAST_TERM_INST(N) TermOpsEnd = N+1,
+#define LAST_TERM_INST(N) TermOpsEnd = N+1
#include "llvm/Instruction.def"
};
enum BinaryOps {
#define FIRST_BINARY_INST(N) BinaryOpsBegin = N,
#define HANDLE_BINARY_INST(N, OPC, CLASS) OPC = N,
-#define LAST_BINARY_INST(N) BinaryOpsEnd = N+1,
+#define LAST_BINARY_INST(N) BinaryOpsEnd = N+1
#include "llvm/Instruction.def"
};
enum MemoryOps {
#define FIRST_MEMORY_INST(N) MemoryOpsBegin = N,
#define HANDLE_MEMORY_INST(N, OPC, CLASS) OPC = N,
-#define LAST_MEMORY_INST(N) MemoryOpsEnd = N+1,
+#define LAST_MEMORY_INST(N) MemoryOpsEnd = N+1
#include "llvm/Instruction.def"
};
enum OtherOps {
#define FIRST_OTHER_INST(N) OtherOpsBegin = N,
#define HANDLE_OTHER_INST(N, OPC, CLASS) OPC = N,
-#define LAST_OTHER_INST(N) OtherOpsEnd = N+1,
+#define LAST_OTHER_INST(N) OtherOpsEnd = N+1
#include "llvm/Instruction.def"
};
};