mirror of
https://github.com/RPCS3/llvm-mirror.git
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2169 lines
84 KiB
C++
2169 lines
84 KiB
C++
//===-- llvm/Instructions.h - Instruction subclass definitions --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file exposes the class definitions of all of the subclasses of the
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// Instruction class. This is meant to be an easy way to get access to all
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// instruction subclasses.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_INSTRUCTIONS_H
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#define LLVM_INSTRUCTIONS_H
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#include "llvm/InstrTypes.h"
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namespace llvm {
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class BasicBlock;
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class ConstantInt;
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class PointerType;
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class PackedType;
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//===----------------------------------------------------------------------===//
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// AllocationInst Class
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//===----------------------------------------------------------------------===//
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/// AllocationInst - This class is the common base class of MallocInst and
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/// AllocaInst.
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///
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class AllocationInst : public UnaryInstruction {
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unsigned Alignment;
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protected:
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AllocationInst(const Type *Ty, Value *ArraySize, unsigned iTy, unsigned Align,
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const std::string &Name = "", Instruction *InsertBefore = 0);
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AllocationInst(const Type *Ty, Value *ArraySize, unsigned iTy, unsigned Align,
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const std::string &Name, BasicBlock *InsertAtEnd);
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public:
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// Out of line virtual method, so the vtable, etc has a home.
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virtual ~AllocationInst();
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/// isArrayAllocation - Return true if there is an allocation size parameter
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/// to the allocation instruction that is not 1.
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///
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bool isArrayAllocation() const;
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/// getArraySize - Get the number of element allocated, for a simple
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/// allocation of a single element, this will return a constant 1 value.
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///
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inline const Value *getArraySize() const { return getOperand(0); }
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inline Value *getArraySize() { return getOperand(0); }
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/// getType - Overload to return most specific pointer type
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///
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inline const PointerType *getType() const {
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return reinterpret_cast<const PointerType*>(Instruction::getType());
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}
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/// getAllocatedType - Return the type that is being allocated by the
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/// instruction.
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///
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const Type *getAllocatedType() const;
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/// getAlignment - Return the alignment of the memory that is being allocated
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/// by the instruction.
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///
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unsigned getAlignment() const { return Alignment; }
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void setAlignment(unsigned Align) {
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assert((Align & (Align-1)) == 0 && "Alignment is not a power of 2!");
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Alignment = Align;
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}
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virtual Instruction *clone() const = 0;
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const AllocationInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == Instruction::Alloca ||
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I->getOpcode() == Instruction::Malloc;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// MallocInst Class
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//===----------------------------------------------------------------------===//
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/// MallocInst - an instruction to allocated memory on the heap
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///
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class MallocInst : public AllocationInst {
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MallocInst(const MallocInst &MI);
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public:
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explicit MallocInst(const Type *Ty, Value *ArraySize = 0,
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const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: AllocationInst(Ty, ArraySize, Malloc, 0, Name, InsertBefore) {}
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MallocInst(const Type *Ty, Value *ArraySize, const std::string &Name,
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BasicBlock *InsertAtEnd)
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: AllocationInst(Ty, ArraySize, Malloc, 0, Name, InsertAtEnd) {}
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MallocInst(const Type *Ty, const std::string &Name,
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Instruction *InsertBefore = 0)
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: AllocationInst(Ty, 0, Malloc, 0, Name, InsertBefore) {}
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MallocInst(const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd)
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: AllocationInst(Ty, 0, Malloc, 0, Name, InsertAtEnd) {}
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MallocInst(const Type *Ty, Value *ArraySize, unsigned Align,
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const std::string &Name, BasicBlock *InsertAtEnd)
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: AllocationInst(Ty, ArraySize, Malloc, Align, Name, InsertAtEnd) {}
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MallocInst(const Type *Ty, Value *ArraySize, unsigned Align,
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const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: AllocationInst(Ty, ArraySize, Malloc, Align, Name, InsertBefore) {}
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virtual MallocInst *clone() const;
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const MallocInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return (I->getOpcode() == Instruction::Malloc);
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// AllocaInst Class
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//===----------------------------------------------------------------------===//
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/// AllocaInst - an instruction to allocate memory on the stack
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///
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class AllocaInst : public AllocationInst {
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AllocaInst(const AllocaInst &);
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public:
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explicit AllocaInst(const Type *Ty, Value *ArraySize = 0,
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const std::string &Name = "",
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Instruction *InsertBefore = 0)
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: AllocationInst(Ty, ArraySize, Alloca, 0, Name, InsertBefore) {}
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AllocaInst(const Type *Ty, Value *ArraySize, const std::string &Name,
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BasicBlock *InsertAtEnd)
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: AllocationInst(Ty, ArraySize, Alloca, 0, Name, InsertAtEnd) {}
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AllocaInst(const Type *Ty, const std::string &Name,
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Instruction *InsertBefore = 0)
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: AllocationInst(Ty, 0, Alloca, 0, Name, InsertBefore) {}
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AllocaInst(const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd)
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: AllocationInst(Ty, 0, Alloca, 0, Name, InsertAtEnd) {}
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AllocaInst(const Type *Ty, Value *ArraySize, unsigned Align,
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const std::string &Name = "", Instruction *InsertBefore = 0)
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: AllocationInst(Ty, ArraySize, Alloca, Align, Name, InsertBefore) {}
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AllocaInst(const Type *Ty, Value *ArraySize, unsigned Align,
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const std::string &Name, BasicBlock *InsertAtEnd)
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: AllocationInst(Ty, ArraySize, Alloca, Align, Name, InsertAtEnd) {}
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virtual AllocaInst *clone() const;
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const AllocaInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return (I->getOpcode() == Instruction::Alloca);
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// FreeInst Class
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//===----------------------------------------------------------------------===//
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/// FreeInst - an instruction to deallocate memory
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///
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class FreeInst : public UnaryInstruction {
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void AssertOK();
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public:
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explicit FreeInst(Value *Ptr, Instruction *InsertBefore = 0);
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FreeInst(Value *Ptr, BasicBlock *InsertAfter);
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virtual FreeInst *clone() const;
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virtual bool mayWriteToMemory() const { return true; }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const FreeInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return (I->getOpcode() == Instruction::Free);
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// LoadInst Class
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//===----------------------------------------------------------------------===//
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/// LoadInst - an instruction for reading from memory. This uses the
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/// SubclassData field in Value to store whether or not the load is volatile.
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///
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class LoadInst : public UnaryInstruction {
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LoadInst(const LoadInst &LI)
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: UnaryInstruction(LI.getType(), Load, LI.getOperand(0)) {
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setVolatile(LI.isVolatile());
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#ifndef NDEBUG
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AssertOK();
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#endif
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}
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void AssertOK();
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public:
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LoadInst(Value *Ptr, const std::string &Name, Instruction *InsertBefore);
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LoadInst(Value *Ptr, const std::string &Name, BasicBlock *InsertAtEnd);
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explicit LoadInst(Value *Ptr, const std::string &Name = "",
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bool isVolatile = false, Instruction *InsertBefore = 0);
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LoadInst(Value *Ptr, const std::string &Name, bool isVolatile,
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BasicBlock *InsertAtEnd);
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/// isVolatile - Return true if this is a load from a volatile memory
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/// location.
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///
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bool isVolatile() const { return SubclassData; }
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/// setVolatile - Specify whether this is a volatile load or not.
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///
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void setVolatile(bool V) { SubclassData = V; }
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virtual LoadInst *clone() const;
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virtual bool mayWriteToMemory() const { return isVolatile(); }
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Value *getPointerOperand() { return getOperand(0); }
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const Value *getPointerOperand() const { return getOperand(0); }
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static unsigned getPointerOperandIndex() { return 0U; }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const LoadInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == Instruction::Load;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// StoreInst Class
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//===----------------------------------------------------------------------===//
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/// StoreInst - an instruction for storing to memory
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///
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class StoreInst : public Instruction {
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Use Ops[2];
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StoreInst(const StoreInst &SI) : Instruction(SI.getType(), Store, Ops, 2) {
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Ops[0].init(SI.Ops[0], this);
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Ops[1].init(SI.Ops[1], this);
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setVolatile(SI.isVolatile());
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#ifndef NDEBUG
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AssertOK();
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#endif
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}
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void AssertOK();
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public:
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StoreInst(Value *Val, Value *Ptr, Instruction *InsertBefore);
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StoreInst(Value *Val, Value *Ptr, BasicBlock *InsertAtEnd);
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StoreInst(Value *Val, Value *Ptr, bool isVolatile = false,
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Instruction *InsertBefore = 0);
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StoreInst(Value *Val, Value *Ptr, bool isVolatile, BasicBlock *InsertAtEnd);
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/// isVolatile - Return true if this is a load from a volatile memory
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/// location.
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///
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bool isVolatile() const { return SubclassData; }
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/// setVolatile - Specify whether this is a volatile load or not.
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///
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void setVolatile(bool V) { SubclassData = V; }
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/// Transparently provide more efficient getOperand methods.
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Value *getOperand(unsigned i) const {
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assert(i < 2 && "getOperand() out of range!");
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return Ops[i];
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}
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void setOperand(unsigned i, Value *Val) {
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assert(i < 2 && "setOperand() out of range!");
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Ops[i] = Val;
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}
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unsigned getNumOperands() const { return 2; }
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virtual StoreInst *clone() const;
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virtual bool mayWriteToMemory() const { return true; }
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Value *getPointerOperand() { return getOperand(1); }
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const Value *getPointerOperand() const { return getOperand(1); }
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static unsigned getPointerOperandIndex() { return 1U; }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const StoreInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return I->getOpcode() == Instruction::Store;
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// GetElementPtrInst Class
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//===----------------------------------------------------------------------===//
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/// GetElementPtrInst - an instruction for type-safe pointer arithmetic to
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/// access elements of arrays and structs
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///
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class GetElementPtrInst : public Instruction {
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GetElementPtrInst(const GetElementPtrInst &GEPI)
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: Instruction(reinterpret_cast<const Type*>(GEPI.getType()), GetElementPtr,
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0, GEPI.getNumOperands()) {
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Use *OL = OperandList = new Use[NumOperands];
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Use *GEPIOL = GEPI.OperandList;
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for (unsigned i = 0, E = NumOperands; i != E; ++i)
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OL[i].init(GEPIOL[i], this);
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}
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void init(Value *Ptr, const std::vector<Value*> &Idx);
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void init(Value *Ptr, Value *Idx0, Value *Idx1);
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void init(Value *Ptr, Value *Idx);
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public:
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/// Constructors - Create a getelementptr instruction with a base pointer an
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/// list of indices. The first ctor can optionally insert before an existing
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/// instruction, the second appends the new instruction to the specified
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/// BasicBlock.
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GetElementPtrInst(Value *Ptr, const std::vector<Value*> &Idx,
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const std::string &Name = "", Instruction *InsertBefore =0);
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GetElementPtrInst(Value *Ptr, const std::vector<Value*> &Idx,
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const std::string &Name, BasicBlock *InsertAtEnd);
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/// Constructors - These two constructors are convenience methods because one
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/// and two index getelementptr instructions are so common.
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GetElementPtrInst(Value *Ptr, Value *Idx,
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const std::string &Name = "", Instruction *InsertBefore =0);
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GetElementPtrInst(Value *Ptr, Value *Idx,
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const std::string &Name, BasicBlock *InsertAtEnd);
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GetElementPtrInst(Value *Ptr, Value *Idx0, Value *Idx1,
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const std::string &Name = "", Instruction *InsertBefore =0);
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GetElementPtrInst(Value *Ptr, Value *Idx0, Value *Idx1,
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const std::string &Name, BasicBlock *InsertAtEnd);
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~GetElementPtrInst();
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virtual GetElementPtrInst *clone() const;
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// getType - Overload to return most specific pointer type...
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inline const PointerType *getType() const {
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return reinterpret_cast<const PointerType*>(Instruction::getType());
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}
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/// getIndexedType - Returns the type of the element that would be loaded with
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/// a load instruction with the specified parameters.
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///
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/// A null type is returned if the indices are invalid for the specified
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/// pointer type.
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///
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static const Type *getIndexedType(const Type *Ptr,
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const std::vector<Value*> &Indices,
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bool AllowStructLeaf = false);
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static const Type *getIndexedType(const Type *Ptr, Value *Idx0, Value *Idx1,
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bool AllowStructLeaf = false);
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static const Type *getIndexedType(const Type *Ptr, Value *Idx);
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inline op_iterator idx_begin() { return op_begin()+1; }
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inline const_op_iterator idx_begin() const { return op_begin()+1; }
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inline op_iterator idx_end() { return op_end(); }
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inline const_op_iterator idx_end() const { return op_end(); }
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Value *getPointerOperand() {
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return getOperand(0);
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}
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const Value *getPointerOperand() const {
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return getOperand(0);
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}
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static unsigned getPointerOperandIndex() {
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return 0U; // get index for modifying correct operand
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}
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inline unsigned getNumIndices() const { // Note: always non-negative
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return getNumOperands() - 1;
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}
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inline bool hasIndices() const {
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return getNumOperands() > 1;
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}
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const GetElementPtrInst *) { return true; }
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static inline bool classof(const Instruction *I) {
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return (I->getOpcode() == Instruction::GetElementPtr);
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}
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static inline bool classof(const Value *V) {
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return isa<Instruction>(V) && classof(cast<Instruction>(V));
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}
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};
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//===----------------------------------------------------------------------===//
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// ICmpInst Class
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//===----------------------------------------------------------------------===//
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/// This instruction compares its operands according to the predicate given
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/// to the constructor. It only operates on integers, pointers, or packed
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/// vectors of integrals. The two operands must be the same type.
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/// @brief Represent an integer comparison operator.
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class ICmpInst: public CmpInst {
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public:
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/// This enumeration lists the possible predicates for the ICmpInst. The
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/// values in the range 0-31 are reserved for FCmpInst while values in the
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/// range 32-64 are reserved for ICmpInst. This is necessary to ensure the
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/// predicate values are not overlapping between the classes.
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enum Predicate {
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ICMP_EQ = 32, ///< equal
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ICMP_NE = 33, ///< not equal
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ICMP_UGT = 34, ///< unsigned greater than
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ICMP_UGE = 35, ///< unsigned greater or equal
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ICMP_ULT = 36, ///< unsigned less than
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ICMP_ULE = 37, ///< unsigned less or equal
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ICMP_SGT = 38, ///< signed greater than
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ICMP_SGE = 39, ///< signed greater or equal
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ICMP_SLT = 40, ///< signed less than
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ICMP_SLE = 41, ///< signed less or equal
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FIRST_ICMP_PREDICATE = ICMP_EQ,
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LAST_ICMP_PREDICATE = ICMP_SLE,
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BAD_ICMP_PREDICATE = ICMP_SLE + 1
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};
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/// @brief Constructor with insert-before-instruction semantics.
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ICmpInst(
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Predicate pred, ///< The predicate to use for the comparison
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Value *LHS, ///< The left-hand-side of the expression
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Value *RHS, ///< The right-hand-side of the expression
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const std::string &Name = "", ///< Name of the instruction
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Instruction *InsertBefore = 0 ///< Where to insert
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) : CmpInst(Instruction::ICmp, pred, LHS, RHS, Name, InsertBefore) {
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}
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/// @brief Constructor with insert-at-block-end semantics.
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ICmpInst(
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Predicate pred, ///< The predicate to use for the comparison
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Value *LHS, ///< The left-hand-side of the expression
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Value *RHS, ///< The right-hand-side of the expression
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const std::string &Name, ///< Name of the instruction
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BasicBlock *InsertAtEnd ///< Block to insert into.
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) : CmpInst(Instruction::ICmp, pred, LHS, RHS, Name, InsertAtEnd) {
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}
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/// @brief Return the predicate for this instruction.
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Predicate getPredicate() const { return Predicate(SubclassData); }
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/// For example, EQ -> NE, UGT -> ULE, SLT -> SGE, etc.
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/// @returns the inverse predicate for the instruction's current predicate.
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/// @brief Return the inverse of the instruction's predicate.
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Predicate getInversePredicate() const {
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return getInversePredicate(getPredicate());
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}
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/// For example, EQ -> NE, UGT -> ULE, SLT -> SGE, etc.
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/// @returns the inverse predicate for predicate provided in \p pred.
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/// @brief Return the inverse of a given predicate
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static Predicate getInversePredicate(Predicate pred);
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/// For example, EQ->EQ, SLE->SGE, ULT->UGT, etc.
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/// @returns the predicate that would be the result of exchanging the two
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/// operands of the ICmpInst instruction without changing the result
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/// produced.
|
|
/// @brief Return the predicate as if the operands were swapped
|
|
Predicate getSwappedPredicate() const {
|
|
return getSwappedPredicate(getPredicate());
|
|
}
|
|
|
|
/// This is a static version that you can use without an instruction
|
|
/// available.
|
|
/// @brief Return the predicate as if the operands were swapped.
|
|
static Predicate getSwappedPredicate(Predicate pred);
|
|
|
|
/// For example, EQ->EQ, SLE->SLE, UGT->SGT, etc.
|
|
/// @returns the predicate that would be the result if the operand were
|
|
/// regarded as signed.
|
|
/// @brief Return the signed version of the predicate
|
|
Predicate getSignedPredicate() const {
|
|
return getSignedPredicate(getPredicate());
|
|
}
|
|
|
|
/// This is a static version that you can use without an instruction.
|
|
/// @brief Return the signed version of the predicate.
|
|
static Predicate getSignedPredicate(Predicate pred);
|
|
|
|
/// This also tests for commutativity. If isEquality() returns true then
|
|
/// the predicate is also commutative.
|
|
/// @returns true if the predicate of this instruction is EQ or NE.
|
|
/// @brief Determine if this is an equality predicate.
|
|
bool isEquality() const {
|
|
return SubclassData == ICMP_EQ || SubclassData == ICMP_NE;
|
|
}
|
|
|
|
/// @returns true if the predicate of this ICmpInst is commutative
|
|
/// @brief Determine if this relation is commutative.
|
|
bool isCommutative() const { return isEquality(); }
|
|
|
|
/// @returns true if the predicate is relational (not EQ or NE).
|
|
/// @brief Determine if this a relational predicate.
|
|
bool isRelational() const {
|
|
return !isEquality();
|
|
}
|
|
|
|
/// @returns true if the predicate of this ICmpInst is signed, false otherwise
|
|
/// @brief Determine if this instruction's predicate is signed.
|
|
bool isSignedPredicate() { return isSignedPredicate(getPredicate()); }
|
|
|
|
/// @returns true if the predicate provided is signed, false otherwise
|
|
/// @brief Determine if the predicate is signed.
|
|
static bool isSignedPredicate(Predicate pred);
|
|
|
|
/// Exchange the two operands to this instruction in such a way that it does
|
|
/// not modify the semantics of the instruction. The predicate value may be
|
|
/// changed to retain the same result if the predicate is order dependent
|
|
/// (e.g. ult).
|
|
/// @brief Swap operands and adjust predicate.
|
|
void swapOperands() {
|
|
SubclassData = getSwappedPredicate();
|
|
std::swap(Ops[0], Ops[1]);
|
|
}
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ICmpInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::ICmp;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FCmpInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// This instruction compares its operands according to the predicate given
|
|
/// to the constructor. It only operates on floating point values or packed
|
|
/// vectors of floating point values. The operands must be identical types.
|
|
/// @brief Represents a floating point comparison operator.
|
|
class FCmpInst: public CmpInst {
|
|
public:
|
|
/// This enumeration lists the possible predicates for the FCmpInst. Values
|
|
/// in the range 0-31 are reserved for FCmpInst.
|
|
enum Predicate {
|
|
// Opcode U L G E Intuitive operation
|
|
FCMP_FALSE = 0, ///< 0 0 0 0 Always false (always folded)
|
|
FCMP_OEQ = 1, ///< 0 0 0 1 True if ordered and equal
|
|
FCMP_OGT = 2, ///< 0 0 1 0 True if ordered and greater than
|
|
FCMP_OGE = 3, ///< 0 0 1 1 True if ordered and greater than or equal
|
|
FCMP_OLT = 4, ///< 0 1 0 0 True if ordered and less than
|
|
FCMP_OLE = 5, ///< 0 1 0 1 True if ordered and less than or equal
|
|
FCMP_ONE = 6, ///< 0 1 1 0 True if ordered and operands are unequal
|
|
FCMP_ORD = 7, ///< 0 1 1 1 True if ordered (no nans)
|
|
FCMP_UNO = 8, ///< 1 0 0 0 True if unordered: isnan(X) | isnan(Y)
|
|
FCMP_UEQ = 9, ///< 1 0 0 1 True if unordered or equal
|
|
FCMP_UGT =10, ///< 1 0 1 0 True if unordered or greater than
|
|
FCMP_UGE =11, ///< 1 0 1 1 True if unordered, greater than, or equal
|
|
FCMP_ULT =12, ///< 1 1 0 0 True if unordered or less than
|
|
FCMP_ULE =13, ///< 1 1 0 1 True if unordered, less than, or equal
|
|
FCMP_UNE =14, ///< 1 1 1 0 True if unordered or not equal
|
|
FCMP_TRUE =15, ///< 1 1 1 1 Always true (always folded)
|
|
FIRST_FCMP_PREDICATE = FCMP_FALSE,
|
|
LAST_FCMP_PREDICATE = FCMP_TRUE,
|
|
BAD_FCMP_PREDICATE = FCMP_TRUE + 1
|
|
};
|
|
|
|
/// @brief Constructor with insert-before-instruction semantics.
|
|
FCmpInst(
|
|
Predicate pred, ///< The predicate to use for the comparison
|
|
Value *LHS, ///< The left-hand-side of the expression
|
|
Value *RHS, ///< The right-hand-side of the expression
|
|
const std::string &Name = "", ///< Name of the instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert
|
|
) : CmpInst(Instruction::FCmp, pred, LHS, RHS, Name, InsertBefore) {
|
|
}
|
|
|
|
/// @brief Constructor with insert-at-block-end semantics.
|
|
FCmpInst(
|
|
Predicate pred, ///< The predicate to use for the comparison
|
|
Value *LHS, ///< The left-hand-side of the expression
|
|
Value *RHS, ///< The right-hand-side of the expression
|
|
const std::string &Name, ///< Name of the instruction
|
|
BasicBlock *InsertAtEnd ///< Block to insert into.
|
|
) : CmpInst(Instruction::FCmp, pred, LHS, RHS, Name, InsertAtEnd) {
|
|
}
|
|
|
|
/// @brief Return the predicate for this instruction.
|
|
Predicate getPredicate() const { return Predicate(SubclassData); }
|
|
|
|
/// For example, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
|
|
/// @returns the inverse predicate for the instructions current predicate.
|
|
/// @brief Return the inverse of the predicate
|
|
Predicate getInversePredicate() const {
|
|
return getInversePredicate(getPredicate());
|
|
}
|
|
|
|
/// For example, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
|
|
/// @returns the inverse predicate for \p pred.
|
|
/// @brief Return the inverse of a given predicate
|
|
static Predicate getInversePredicate(Predicate pred);
|
|
|
|
/// For example, OEQ->OEQ, ULE->UGE, OLT->OGT, etc.
|
|
/// @returns the predicate that would be the result of exchanging the two
|
|
/// operands of the ICmpInst instruction without changing the result
|
|
/// produced.
|
|
/// @brief Return the predicate as if the operands were swapped
|
|
Predicate getSwappedPredicate() const {
|
|
return getSwappedPredicate(getPredicate());
|
|
}
|
|
|
|
/// This is a static version that you can use without an instruction
|
|
/// available.
|
|
/// @brief Return the predicate as if the operands were swapped.
|
|
static Predicate getSwappedPredicate(Predicate Opcode);
|
|
|
|
/// This also tests for commutativity. If isEquality() returns true then
|
|
/// the predicate is also commutative. Only the equality predicates are
|
|
/// commutative.
|
|
/// @returns true if the predicate of this instruction is EQ or NE.
|
|
/// @brief Determine if this is an equality predicate.
|
|
bool isEquality() const {
|
|
return SubclassData == FCMP_OEQ || SubclassData == FCMP_ONE ||
|
|
SubclassData == FCMP_UEQ || SubclassData == FCMP_UNE;
|
|
}
|
|
bool isCommutative() const { return isEquality(); }
|
|
|
|
/// @returns true if the predicate is relational (not EQ or NE).
|
|
/// @brief Determine if this a relational predicate.
|
|
bool isRelational() const { return !isEquality(); }
|
|
|
|
/// Exchange the two operands to this instruction in such a way that it does
|
|
/// not modify the semantics of the instruction. The predicate value may be
|
|
/// changed to retain the same result if the predicate is order dependent
|
|
/// (e.g. ult).
|
|
/// @brief Swap operands and adjust predicate.
|
|
void swapOperands() {
|
|
SubclassData = getSwappedPredicate();
|
|
std::swap(Ops[0], Ops[1]);
|
|
}
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const FCmpInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::FCmp;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// CallInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// CallInst - This class represents a function call, abstracting a target
|
|
/// 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);
|
|
void init(Value *Func, const std::vector<Value*> &Params);
|
|
void init(Value *Func, Value *Actual1, Value *Actual2);
|
|
void init(Value *Func, Value *Actual);
|
|
void init(Value *Func);
|
|
|
|
public:
|
|
CallInst(Value *F, const std::vector<Value*> &Par,
|
|
const std::string &Name = "", Instruction *InsertBefore = 0);
|
|
CallInst(Value *F, const std::vector<Value*> &Par,
|
|
const std::string &Name, BasicBlock *InsertAtEnd);
|
|
|
|
// Alternate CallInst ctors w/ two actuals, w/ one actual and no
|
|
// actuals, respectively.
|
|
CallInst(Value *F, Value *Actual1, Value *Actual2,
|
|
const std::string& Name = "", Instruction *InsertBefore = 0);
|
|
CallInst(Value *F, Value *Actual1, Value *Actual2,
|
|
const std::string& Name, BasicBlock *InsertAtEnd);
|
|
CallInst(Value *F, Value *Actual, const std::string& Name = "",
|
|
Instruction *InsertBefore = 0);
|
|
CallInst(Value *F, Value *Actual, const std::string& Name,
|
|
BasicBlock *InsertAtEnd);
|
|
explicit CallInst(Value *F, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0);
|
|
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 static_cast<Function*>(dyn_cast<Function>(getOperand(0)));
|
|
}
|
|
|
|
/// getCalledValue - Get a pointer to the function that is invoked by this
|
|
/// instruction
|
|
inline const Value *getCalledValue() const { return getOperand(0); }
|
|
inline Value *getCalledValue() { return getOperand(0); }
|
|
|
|
// 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;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ShiftInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ShiftInst - This class represents left and right shift instructions.
|
|
///
|
|
class ShiftInst : public Instruction {
|
|
Use Ops[2];
|
|
ShiftInst(const ShiftInst &SI)
|
|
: Instruction(SI.getType(), SI.getOpcode(), Ops, 2) {
|
|
Ops[0].init(SI.Ops[0], this);
|
|
Ops[1].init(SI.Ops[1], this);
|
|
}
|
|
void init(OtherOps Opcode, Value *S, Value *SA) {
|
|
assert((Opcode == Shl || Opcode == LShr || Opcode == AShr) &&
|
|
"ShiftInst Opcode invalid!");
|
|
Ops[0].init(S, this);
|
|
Ops[1].init(SA, this);
|
|
}
|
|
|
|
public:
|
|
ShiftInst(OtherOps Opcode, Value *S, Value *SA, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0)
|
|
: Instruction(S->getType(), Opcode, Ops, 2, Name, InsertBefore) {
|
|
init(Opcode, S, SA);
|
|
}
|
|
ShiftInst(OtherOps Opcode, Value *S, Value *SA, const std::string &Name,
|
|
BasicBlock *InsertAtEnd)
|
|
: Instruction(S->getType(), Opcode, Ops, 2, Name, InsertAtEnd) {
|
|
init(Opcode, S, SA);
|
|
}
|
|
|
|
OtherOps getOpcode() const {
|
|
return static_cast<OtherOps>(Instruction::getOpcode());
|
|
}
|
|
|
|
/// Transparently provide more efficient getOperand methods.
|
|
Value *getOperand(unsigned i) const {
|
|
assert(i < 2 && "getOperand() out of range!");
|
|
return Ops[i];
|
|
}
|
|
void setOperand(unsigned i, Value *Val) {
|
|
assert(i < 2 && "setOperand() out of range!");
|
|
Ops[i] = Val;
|
|
}
|
|
unsigned getNumOperands() const { return 2; }
|
|
|
|
/// isLogicalShift - Return true if this is a logical shift left or a logical
|
|
/// shift right.
|
|
bool isLogicalShift() const {
|
|
unsigned opcode = getOpcode();
|
|
return opcode == Instruction::Shl || opcode == Instruction::LShr;
|
|
}
|
|
|
|
|
|
/// isArithmeticShift - Return true if this is a sign-extending shift right
|
|
/// operation.
|
|
bool isArithmeticShift() const {
|
|
return !isLogicalShift();
|
|
}
|
|
|
|
|
|
virtual ShiftInst *clone() const;
|
|
|
|
// 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::LShr) |
|
|
(I->getOpcode() == Instruction::AShr) |
|
|
(I->getOpcode() == Instruction::Shl);
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SelectInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// SelectInst - This class represents the LLVM 'select' instruction.
|
|
///
|
|
class SelectInst : public Instruction {
|
|
Use Ops[3];
|
|
|
|
void init(Value *C, Value *S1, Value *S2) {
|
|
Ops[0].init(C, this);
|
|
Ops[1].init(S1, this);
|
|
Ops[2].init(S2, this);
|
|
}
|
|
|
|
SelectInst(const SelectInst &SI)
|
|
: Instruction(SI.getType(), SI.getOpcode(), Ops, 3) {
|
|
init(SI.Ops[0], SI.Ops[1], SI.Ops[2]);
|
|
}
|
|
public:
|
|
SelectInst(Value *C, Value *S1, Value *S2, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0)
|
|
: Instruction(S1->getType(), Instruction::Select, Ops, 3,
|
|
Name, InsertBefore) {
|
|
init(C, S1, S2);
|
|
}
|
|
SelectInst(Value *C, Value *S1, Value *S2, const std::string &Name,
|
|
BasicBlock *InsertAtEnd)
|
|
: Instruction(S1->getType(), Instruction::Select, Ops, 3,
|
|
Name, InsertAtEnd) {
|
|
init(C, S1, S2);
|
|
}
|
|
|
|
Value *getCondition() const { return Ops[0]; }
|
|
Value *getTrueValue() const { return Ops[1]; }
|
|
Value *getFalseValue() const { return Ops[2]; }
|
|
|
|
/// Transparently provide more efficient getOperand methods.
|
|
Value *getOperand(unsigned i) const {
|
|
assert(i < 3 && "getOperand() out of range!");
|
|
return Ops[i];
|
|
}
|
|
void setOperand(unsigned i, Value *Val) {
|
|
assert(i < 3 && "setOperand() out of range!");
|
|
Ops[i] = Val;
|
|
}
|
|
unsigned getNumOperands() const { return 3; }
|
|
|
|
OtherOps getOpcode() const {
|
|
return static_cast<OtherOps>(Instruction::getOpcode());
|
|
}
|
|
|
|
virtual SelectInst *clone() const;
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const SelectInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::Select;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// VAArgInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// VAArgInst - This class represents the va_arg llvm instruction, which returns
|
|
/// an argument of the specified type given a va_list and increments that list
|
|
///
|
|
class VAArgInst : public UnaryInstruction {
|
|
VAArgInst(const VAArgInst &VAA)
|
|
: UnaryInstruction(VAA.getType(), VAArg, VAA.getOperand(0)) {}
|
|
public:
|
|
VAArgInst(Value *List, const Type *Ty, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0)
|
|
: UnaryInstruction(Ty, VAArg, List, Name, InsertBefore) {
|
|
}
|
|
VAArgInst(Value *List, const Type *Ty, const std::string &Name,
|
|
BasicBlock *InsertAtEnd)
|
|
: UnaryInstruction(Ty, VAArg, List, Name, InsertAtEnd) {
|
|
}
|
|
|
|
virtual VAArgInst *clone() const;
|
|
bool mayWriteToMemory() const { return true; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const VAArgInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == VAArg;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ExtractElementInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ExtractElementInst - This instruction extracts a single (scalar)
|
|
/// element from a PackedType value
|
|
///
|
|
class ExtractElementInst : public Instruction {
|
|
Use Ops[2];
|
|
ExtractElementInst(const ExtractElementInst &EE) :
|
|
Instruction(EE.getType(), ExtractElement, Ops, 2) {
|
|
Ops[0].init(EE.Ops[0], this);
|
|
Ops[1].init(EE.Ops[1], this);
|
|
}
|
|
|
|
public:
|
|
ExtractElementInst(Value *Vec, Value *Idx, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0);
|
|
ExtractElementInst(Value *Vec, unsigned Idx, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0);
|
|
ExtractElementInst(Value *Vec, Value *Idx, const std::string &Name,
|
|
BasicBlock *InsertAtEnd);
|
|
ExtractElementInst(Value *Vec, unsigned Idx, const std::string &Name,
|
|
BasicBlock *InsertAtEnd);
|
|
|
|
/// isValidOperands - Return true if an extractelement instruction can be
|
|
/// formed with the specified operands.
|
|
static bool isValidOperands(const Value *Vec, const Value *Idx);
|
|
|
|
virtual ExtractElementInst *clone() const;
|
|
|
|
virtual bool mayWriteToMemory() const { return false; }
|
|
|
|
/// Transparently provide more efficient getOperand methods.
|
|
Value *getOperand(unsigned i) const {
|
|
assert(i < 2 && "getOperand() out of range!");
|
|
return Ops[i];
|
|
}
|
|
void setOperand(unsigned i, Value *Val) {
|
|
assert(i < 2 && "setOperand() out of range!");
|
|
Ops[i] = Val;
|
|
}
|
|
unsigned getNumOperands() const { return 2; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ExtractElementInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::ExtractElement;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// InsertElementInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// InsertElementInst - This instruction inserts a single (scalar)
|
|
/// element into a PackedType value
|
|
///
|
|
class InsertElementInst : public Instruction {
|
|
Use Ops[3];
|
|
InsertElementInst(const InsertElementInst &IE);
|
|
public:
|
|
InsertElementInst(Value *Vec, Value *NewElt, Value *Idx,
|
|
const std::string &Name = "",Instruction *InsertBefore = 0);
|
|
InsertElementInst(Value *Vec, Value *NewElt, unsigned Idx,
|
|
const std::string &Name = "",Instruction *InsertBefore = 0);
|
|
InsertElementInst(Value *Vec, Value *NewElt, Value *Idx,
|
|
const std::string &Name, BasicBlock *InsertAtEnd);
|
|
InsertElementInst(Value *Vec, Value *NewElt, unsigned Idx,
|
|
const std::string &Name, BasicBlock *InsertAtEnd);
|
|
|
|
/// isValidOperands - Return true if an insertelement instruction can be
|
|
/// formed with the specified operands.
|
|
static bool isValidOperands(const Value *Vec, const Value *NewElt,
|
|
const Value *Idx);
|
|
|
|
virtual InsertElementInst *clone() const;
|
|
|
|
virtual bool mayWriteToMemory() const { return false; }
|
|
|
|
/// getType - Overload to return most specific packed type.
|
|
///
|
|
inline const PackedType *getType() const {
|
|
return reinterpret_cast<const PackedType*>(Instruction::getType());
|
|
}
|
|
|
|
/// Transparently provide more efficient getOperand methods.
|
|
Value *getOperand(unsigned i) const {
|
|
assert(i < 3 && "getOperand() out of range!");
|
|
return Ops[i];
|
|
}
|
|
void setOperand(unsigned i, Value *Val) {
|
|
assert(i < 3 && "setOperand() out of range!");
|
|
Ops[i] = Val;
|
|
}
|
|
unsigned getNumOperands() const { return 3; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const InsertElementInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::InsertElement;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ShuffleVectorInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// ShuffleVectorInst - This instruction constructs a fixed permutation of two
|
|
/// input vectors.
|
|
///
|
|
class ShuffleVectorInst : public Instruction {
|
|
Use Ops[3];
|
|
ShuffleVectorInst(const ShuffleVectorInst &IE);
|
|
public:
|
|
ShuffleVectorInst(Value *V1, Value *V2, Value *Mask,
|
|
const std::string &Name = "", Instruction *InsertBefor = 0);
|
|
ShuffleVectorInst(Value *V1, Value *V2, Value *Mask,
|
|
const std::string &Name, BasicBlock *InsertAtEnd);
|
|
|
|
/// isValidOperands - Return true if a shufflevector instruction can be
|
|
/// formed with the specified operands.
|
|
static bool isValidOperands(const Value *V1, const Value *V2,
|
|
const Value *Mask);
|
|
|
|
virtual ShuffleVectorInst *clone() const;
|
|
|
|
virtual bool mayWriteToMemory() const { return false; }
|
|
|
|
/// getType - Overload to return most specific packed type.
|
|
///
|
|
inline const PackedType *getType() const {
|
|
return reinterpret_cast<const PackedType*>(Instruction::getType());
|
|
}
|
|
|
|
/// Transparently provide more efficient getOperand methods.
|
|
Value *getOperand(unsigned i) const {
|
|
assert(i < 3 && "getOperand() out of range!");
|
|
return Ops[i];
|
|
}
|
|
void setOperand(unsigned i, Value *Val) {
|
|
assert(i < 3 && "setOperand() out of range!");
|
|
Ops[i] = Val;
|
|
}
|
|
unsigned getNumOperands() const { return 3; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ShuffleVectorInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::ShuffleVector;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// PHINode Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// PHINode - The PHINode class is used to represent the magical mystical PHI
|
|
// node, that can not exist in nature, but can be synthesized in a computer
|
|
// scientist's overactive imagination.
|
|
//
|
|
class PHINode : public Instruction {
|
|
/// ReservedSpace - The number of operands actually allocated. NumOperands is
|
|
/// the number actually in use.
|
|
unsigned ReservedSpace;
|
|
PHINode(const PHINode &PN);
|
|
public:
|
|
explicit PHINode(const Type *Ty, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0)
|
|
: Instruction(Ty, Instruction::PHI, 0, 0, Name, InsertBefore),
|
|
ReservedSpace(0) {
|
|
}
|
|
|
|
PHINode(const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd)
|
|
: Instruction(Ty, Instruction::PHI, 0, 0, Name, InsertAtEnd),
|
|
ReservedSpace(0) {
|
|
}
|
|
|
|
~PHINode();
|
|
|
|
/// reserveOperandSpace - This method can be used to avoid repeated
|
|
/// reallocation of PHI operand lists by reserving space for the correct
|
|
/// number of operands before adding them. Unlike normal vector reserves,
|
|
/// this method can also be used to trim the operand space.
|
|
void reserveOperandSpace(unsigned NumValues) {
|
|
resizeOperands(NumValues*2);
|
|
}
|
|
|
|
virtual PHINode *clone() const;
|
|
|
|
/// getNumIncomingValues - Return the number of incoming edges
|
|
///
|
|
unsigned getNumIncomingValues() const { return getNumOperands()/2; }
|
|
|
|
/// getIncomingValue - Return incoming value number x
|
|
///
|
|
Value *getIncomingValue(unsigned i) const {
|
|
assert(i*2 < getNumOperands() && "Invalid value number!");
|
|
return getOperand(i*2);
|
|
}
|
|
void setIncomingValue(unsigned i, Value *V) {
|
|
assert(i*2 < getNumOperands() && "Invalid value number!");
|
|
setOperand(i*2, V);
|
|
}
|
|
unsigned getOperandNumForIncomingValue(unsigned i) {
|
|
return i*2;
|
|
}
|
|
|
|
/// getIncomingBlock - Return incoming basic block number x
|
|
///
|
|
BasicBlock *getIncomingBlock(unsigned i) const {
|
|
return reinterpret_cast<BasicBlock*>(getOperand(i*2+1));
|
|
}
|
|
void setIncomingBlock(unsigned i, BasicBlock *BB) {
|
|
setOperand(i*2+1, reinterpret_cast<Value*>(BB));
|
|
}
|
|
unsigned getOperandNumForIncomingBlock(unsigned i) {
|
|
return i*2+1;
|
|
}
|
|
|
|
/// addIncoming - Add an incoming value to the end of the PHI list
|
|
///
|
|
void addIncoming(Value *V, BasicBlock *BB) {
|
|
assert(getType() == V->getType() &&
|
|
"All operands to PHI node must be the same type as the PHI node!");
|
|
unsigned OpNo = NumOperands;
|
|
if (OpNo+2 > ReservedSpace)
|
|
resizeOperands(0); // Get more space!
|
|
// Initialize some new operands.
|
|
NumOperands = OpNo+2;
|
|
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.
|
|
///
|
|
/// If the last incoming value for a PHI node is removed (and DeletePHIIfEmpty
|
|
/// is true), the PHI node is destroyed and any uses of it are replaced with
|
|
/// dummy values. The only time there should be zero incoming values to a PHI
|
|
/// node is when the block is dead, so this strategy is sound.
|
|
///
|
|
Value *removeIncomingValue(unsigned Idx, bool DeletePHIIfEmpty = true);
|
|
|
|
Value *removeIncomingValue(const BasicBlock *BB, bool DeletePHIIfEmpty =true){
|
|
int Idx = getBasicBlockIndex(BB);
|
|
assert(Idx >= 0 && "Invalid basic block argument to remove!");
|
|
return removeIncomingValue(Idx, DeletePHIIfEmpty);
|
|
}
|
|
|
|
/// 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)
|
|
if (OL[i+1] == reinterpret_cast<const Value*>(BB)) return i/2;
|
|
return -1;
|
|
}
|
|
|
|
Value *getIncomingValueForBlock(const BasicBlock *BB) const {
|
|
return getIncomingValue(getBasicBlockIndex(BB));
|
|
}
|
|
|
|
/// hasConstantValue - If the specified PHI node always merges together the
|
|
/// same value, return the value, otherwise return null.
|
|
///
|
|
Value *hasConstantValue(bool AllowNonDominatingInstruction = false) const;
|
|
|
|
/// 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;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
private:
|
|
void resizeOperands(unsigned NumOperands);
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ReturnInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ReturnInst - Return a value (possibly void), from a function. Execution
|
|
/// does not continue in this function any longer.
|
|
///
|
|
class ReturnInst : public TerminatorInst {
|
|
Use RetVal; // Possibly null retval.
|
|
ReturnInst(const ReturnInst &RI) : TerminatorInst(Instruction::Ret, &RetVal,
|
|
RI.getNumOperands()) {
|
|
if (RI.getNumOperands())
|
|
RetVal.init(RI.RetVal, this);
|
|
}
|
|
|
|
void init(Value *RetVal);
|
|
|
|
public:
|
|
// ReturnInst constructors:
|
|
// ReturnInst() - 'ret void' instruction
|
|
// ReturnInst( null) - 'ret void' instruction
|
|
// ReturnInst(Value* X) - 'ret X' instruction
|
|
// ReturnInst( null, Inst *) - 'ret void' instruction, insert before I
|
|
// ReturnInst(Value* X, Inst *I) - 'ret X' instruction, insert before I
|
|
// ReturnInst( null, BB *B) - 'ret void' instruction, insert @ end of BB
|
|
// ReturnInst(Value* X, BB *B) - 'ret X' instruction, insert @ end of BB
|
|
//
|
|
// NOTE: If the Value* passed is of type void then the constructor behaves as
|
|
// if it was passed NULL.
|
|
explicit ReturnInst(Value *retVal = 0, Instruction *InsertBefore = 0)
|
|
: TerminatorInst(Instruction::Ret, &RetVal, 0, InsertBefore) {
|
|
init(retVal);
|
|
}
|
|
ReturnInst(Value *retVal, BasicBlock *InsertAtEnd)
|
|
: TerminatorInst(Instruction::Ret, &RetVal, 0, InsertAtEnd) {
|
|
init(retVal);
|
|
}
|
|
explicit ReturnInst(BasicBlock *InsertAtEnd)
|
|
: TerminatorInst(Instruction::Ret, &RetVal, 0, InsertAtEnd) {
|
|
}
|
|
|
|
virtual ReturnInst *clone() const;
|
|
|
|
// Transparently provide more efficient getOperand methods.
|
|
Value *getOperand(unsigned i) const {
|
|
assert(i < getNumOperands() && "getOperand() out of range!");
|
|
return RetVal;
|
|
}
|
|
void setOperand(unsigned i, Value *Val) {
|
|
assert(i < getNumOperands() && "setOperand() out of range!");
|
|
RetVal = Val;
|
|
}
|
|
|
|
Value *getReturnValue() const { return RetVal; }
|
|
|
|
unsigned getNumSuccessors() const { return 0; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ReturnInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return (I->getOpcode() == Instruction::Ret);
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
private:
|
|
virtual BasicBlock *getSuccessorV(unsigned idx) const;
|
|
virtual unsigned getNumSuccessorsV() const;
|
|
virtual void setSuccessorV(unsigned idx, BasicBlock *B);
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// BranchInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// BranchInst - Conditional or Unconditional Branch instruction.
|
|
///
|
|
class BranchInst : public TerminatorInst {
|
|
/// Ops list - Branches are strange. The operands are ordered:
|
|
/// TrueDest, FalseDest, Cond. This makes some accessors faster because
|
|
/// they don't have to check for cond/uncond branchness.
|
|
Use Ops[3];
|
|
BranchInst(const BranchInst &BI);
|
|
void AssertOK();
|
|
public:
|
|
// BranchInst constructors (where {B, T, F} are blocks, and C is a condition):
|
|
// BranchInst(BB *B) - 'br B'
|
|
// BranchInst(BB* T, BB *F, Value *C) - 'br C, T, F'
|
|
// BranchInst(BB* B, Inst *I) - 'br B' insert before I
|
|
// BranchInst(BB* T, BB *F, Value *C, Inst *I) - 'br C, T, F', insert before I
|
|
// BranchInst(BB* B, BB *I) - 'br B' insert at end
|
|
// BranchInst(BB* T, BB *F, Value *C, BB *I) - 'br C, T, F', insert at end
|
|
explicit BranchInst(BasicBlock *IfTrue, Instruction *InsertBefore = 0)
|
|
: TerminatorInst(Instruction::Br, Ops, 1, InsertBefore) {
|
|
assert(IfTrue != 0 && "Branch destination may not be null!");
|
|
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
|
}
|
|
BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
|
|
Instruction *InsertBefore = 0)
|
|
: TerminatorInst(Instruction::Br, Ops, 3, InsertBefore) {
|
|
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
|
Ops[1].init(reinterpret_cast<Value*>(IfFalse), this);
|
|
Ops[2].init(Cond, this);
|
|
#ifndef NDEBUG
|
|
AssertOK();
|
|
#endif
|
|
}
|
|
|
|
BranchInst(BasicBlock *IfTrue, BasicBlock *InsertAtEnd)
|
|
: TerminatorInst(Instruction::Br, Ops, 1, InsertAtEnd) {
|
|
assert(IfTrue != 0 && "Branch destination may not be null!");
|
|
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
|
}
|
|
|
|
BranchInst(BasicBlock *IfTrue, BasicBlock *IfFalse, Value *Cond,
|
|
BasicBlock *InsertAtEnd)
|
|
: TerminatorInst(Instruction::Br, Ops, 3, InsertAtEnd) {
|
|
Ops[0].init(reinterpret_cast<Value*>(IfTrue), this);
|
|
Ops[1].init(reinterpret_cast<Value*>(IfFalse), this);
|
|
Ops[2].init(Cond, this);
|
|
#ifndef NDEBUG
|
|
AssertOK();
|
|
#endif
|
|
}
|
|
|
|
|
|
/// Transparently provide more efficient getOperand methods.
|
|
Value *getOperand(unsigned i) const {
|
|
assert(i < getNumOperands() && "getOperand() out of range!");
|
|
return Ops[i];
|
|
}
|
|
void setOperand(unsigned i, Value *Val) {
|
|
assert(i < getNumOperands() && "setOperand() out of range!");
|
|
Ops[i] = Val;
|
|
}
|
|
|
|
virtual BranchInst *clone() const;
|
|
|
|
inline bool isUnconditional() const { return getNumOperands() == 1; }
|
|
inline bool isConditional() const { return getNumOperands() == 3; }
|
|
|
|
inline Value *getCondition() const {
|
|
assert(isConditional() && "Cannot get condition of an uncond branch!");
|
|
return getOperand(2);
|
|
}
|
|
|
|
void setCondition(Value *V) {
|
|
assert(isConditional() && "Cannot set condition of unconditional branch!");
|
|
setOperand(2, V);
|
|
}
|
|
|
|
// setUnconditionalDest - Change the current branch to an unconditional branch
|
|
// targeting the specified block.
|
|
// FIXME: Eliminate this ugly method.
|
|
void setUnconditionalDest(BasicBlock *Dest) {
|
|
if (isConditional()) { // Convert this to an uncond branch.
|
|
NumOperands = 1;
|
|
Ops[1].set(0);
|
|
Ops[2].set(0);
|
|
}
|
|
setOperand(0, reinterpret_cast<Value*>(Dest));
|
|
}
|
|
|
|
unsigned getNumSuccessors() const { return 1+isConditional(); }
|
|
|
|
BasicBlock *getSuccessor(unsigned i) const {
|
|
assert(i < getNumSuccessors() && "Successor # out of range for Branch!");
|
|
return (i == 0) ? cast<BasicBlock>(getOperand(0)) :
|
|
cast<BasicBlock>(getOperand(1));
|
|
}
|
|
|
|
void setSuccessor(unsigned idx, BasicBlock *NewSucc) {
|
|
assert(idx < getNumSuccessors() && "Successor # out of range for Branch!");
|
|
setOperand(idx, reinterpret_cast<Value*>(NewSucc));
|
|
}
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const BranchInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return (I->getOpcode() == Instruction::Br);
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
private:
|
|
virtual BasicBlock *getSuccessorV(unsigned idx) const;
|
|
virtual unsigned getNumSuccessorsV() const;
|
|
virtual void setSuccessorV(unsigned idx, BasicBlock *B);
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SwitchInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// SwitchInst - Multiway switch
|
|
///
|
|
class SwitchInst : public TerminatorInst {
|
|
unsigned ReservedSpace;
|
|
// Operand[0] = Value to switch on
|
|
// Operand[1] = Default basic block destination
|
|
// Operand[2n ] = Value to match
|
|
// Operand[2n+1] = BasicBlock to go to on match
|
|
SwitchInst(const SwitchInst &RI);
|
|
void init(Value *Value, BasicBlock *Default, unsigned NumCases);
|
|
void resizeOperands(unsigned No);
|
|
public:
|
|
/// SwitchInst ctor - Create a new switch instruction, specifying a value to
|
|
/// switch on and a default destination. The number of additional cases can
|
|
/// 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)
|
|
: TerminatorInst(Instruction::Switch, 0, 0, InsertBefore) {
|
|
init(Value, Default, NumCases);
|
|
}
|
|
|
|
/// SwitchInst ctor - Create a new switch instruction, specifying a value to
|
|
/// switch on and a default destination. The number of additional cases can
|
|
/// 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)
|
|
: TerminatorInst(Instruction::Switch, 0, 0, InsertAtEnd) {
|
|
init(Value, Default, NumCases);
|
|
}
|
|
~SwitchInst();
|
|
|
|
|
|
// Accessor Methods for Switch stmt
|
|
inline Value *getCondition() const { return getOperand(0); }
|
|
void setCondition(Value *V) { setOperand(0, V); }
|
|
|
|
inline BasicBlock *getDefaultDest() const {
|
|
return cast<BasicBlock>(getOperand(1));
|
|
}
|
|
|
|
/// getNumCases - return the number of 'cases' in this switch instruction.
|
|
/// Note that case #0 is always the default case.
|
|
unsigned getNumCases() const {
|
|
return getNumOperands()/2;
|
|
}
|
|
|
|
/// getCaseValue - Return the specified case value. Note that case #0, the
|
|
/// default destination, does not have a case value.
|
|
ConstantInt *getCaseValue(unsigned i) {
|
|
assert(i && i < getNumCases() && "Illegal case value to get!");
|
|
return getSuccessorValue(i);
|
|
}
|
|
|
|
/// getCaseValue - Return the specified case value. Note that case #0, the
|
|
/// default destination, does not have a case value.
|
|
const ConstantInt *getCaseValue(unsigned i) const {
|
|
assert(i && i < getNumCases() && "Illegal case value to get!");
|
|
return getSuccessorValue(i);
|
|
}
|
|
|
|
/// findCaseValue - Search all of the case values for the specified constant.
|
|
/// If it is explicitly handled, return the case number of it, otherwise
|
|
/// return 0 to indicate that it is handled by the default handler.
|
|
unsigned findCaseValue(const ConstantInt *C) const {
|
|
for (unsigned i = 1, e = getNumCases(); i != e; ++i)
|
|
if (getCaseValue(i) == C)
|
|
return i;
|
|
return 0;
|
|
}
|
|
|
|
/// findCaseDest - Finds the unique case value for a given successor. Returns
|
|
/// null if the successor is not found, not unique, or is the default case.
|
|
ConstantInt *findCaseDest(BasicBlock *BB) {
|
|
if (BB == getDefaultDest()) return NULL;
|
|
|
|
ConstantInt *CI = NULL;
|
|
for (unsigned i = 1, e = getNumCases(); i != e; ++i) {
|
|
if (getSuccessor(i) == BB) {
|
|
if (CI) return NULL; // Multiple cases lead to BB.
|
|
else CI = getCaseValue(i);
|
|
}
|
|
}
|
|
return CI;
|
|
}
|
|
|
|
/// addCase - Add an entry to the switch instruction...
|
|
///
|
|
void addCase(ConstantInt *OnVal, BasicBlock *Dest);
|
|
|
|
/// removeCase - This method removes the specified successor from the switch
|
|
/// instruction. Note that this cannot be used to remove the default
|
|
/// destination (successor #0).
|
|
///
|
|
void removeCase(unsigned idx);
|
|
|
|
virtual SwitchInst *clone() const;
|
|
|
|
unsigned getNumSuccessors() const { return getNumOperands()/2; }
|
|
BasicBlock *getSuccessor(unsigned idx) const {
|
|
assert(idx < getNumSuccessors() &&"Successor idx out of range for switch!");
|
|
return cast<BasicBlock>(getOperand(idx*2+1));
|
|
}
|
|
void setSuccessor(unsigned idx, BasicBlock *NewSucc) {
|
|
assert(idx < getNumSuccessors() && "Successor # out of range for switch!");
|
|
setOperand(idx*2+1, reinterpret_cast<Value*>(NewSucc));
|
|
}
|
|
|
|
// getSuccessorValue - Return the value associated with the specified
|
|
// successor.
|
|
inline ConstantInt *getSuccessorValue(unsigned idx) const {
|
|
assert(idx < getNumSuccessors() && "Successor # out of range!");
|
|
return reinterpret_cast<ConstantInt*>(getOperand(idx*2));
|
|
}
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const SwitchInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::Switch;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
private:
|
|
virtual BasicBlock *getSuccessorV(unsigned idx) const;
|
|
virtual unsigned getNumSuccessorsV() const;
|
|
virtual void setSuccessorV(unsigned idx, BasicBlock *B);
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// InvokeInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===---------------------------------------------------------------------------
|
|
|
|
/// InvokeInst - Invoke instruction. The SubclassData field is used to hold the
|
|
/// calling convention of the call.
|
|
///
|
|
class InvokeInst : public TerminatorInst {
|
|
InvokeInst(const InvokeInst &BI);
|
|
void init(Value *Fn, BasicBlock *IfNormal, BasicBlock *IfException,
|
|
const std::vector<Value*> &Params);
|
|
public:
|
|
InvokeInst(Value *Fn, BasicBlock *IfNormal, BasicBlock *IfException,
|
|
const std::vector<Value*> &Params, const std::string &Name = "",
|
|
Instruction *InsertBefore = 0);
|
|
InvokeInst(Value *Fn, BasicBlock *IfNormal, BasicBlock *IfException,
|
|
const std::vector<Value*> &Params, const std::string &Name,
|
|
BasicBlock *InsertAtEnd);
|
|
~InvokeInst();
|
|
|
|
virtual InvokeInst *clone() const;
|
|
|
|
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.
|
|
///
|
|
Function *getCalledFunction() const {
|
|
return dyn_cast<Function>(getOperand(0));
|
|
}
|
|
|
|
// getCalledValue - Get a pointer to a function that is invoked by this inst.
|
|
inline Value *getCalledValue() const { return getOperand(0); }
|
|
|
|
// get*Dest - Return the destination basic blocks...
|
|
BasicBlock *getNormalDest() const {
|
|
return cast<BasicBlock>(getOperand(1));
|
|
}
|
|
BasicBlock *getUnwindDest() const {
|
|
return cast<BasicBlock>(getOperand(2));
|
|
}
|
|
void setNormalDest(BasicBlock *B) {
|
|
setOperand(1, reinterpret_cast<Value*>(B));
|
|
}
|
|
|
|
void setUnwindDest(BasicBlock *B) {
|
|
setOperand(2, reinterpret_cast<Value*>(B));
|
|
}
|
|
|
|
inline BasicBlock *getSuccessor(unsigned i) const {
|
|
assert(i < 2 && "Successor # out of range for invoke!");
|
|
return i == 0 ? getNormalDest() : getUnwindDest();
|
|
}
|
|
|
|
void setSuccessor(unsigned idx, BasicBlock *NewSucc) {
|
|
assert(idx < 2 && "Successor # out of range for invoke!");
|
|
setOperand(idx+1, reinterpret_cast<Value*>(NewSucc));
|
|
}
|
|
|
|
unsigned getNumSuccessors() const { return 2; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const InvokeInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return (I->getOpcode() == Instruction::Invoke);
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
private:
|
|
virtual BasicBlock *getSuccessorV(unsigned idx) const;
|
|
virtual unsigned getNumSuccessorsV() const;
|
|
virtual void setSuccessorV(unsigned idx, BasicBlock *B);
|
|
};
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// UnwindInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// UnwindInst - Immediately exit the current function, unwinding the stack
|
|
/// until an invoke instruction is found.
|
|
///
|
|
class UnwindInst : public TerminatorInst {
|
|
public:
|
|
explicit UnwindInst(Instruction *InsertBefore = 0)
|
|
: TerminatorInst(Instruction::Unwind, 0, 0, InsertBefore) {
|
|
}
|
|
explicit UnwindInst(BasicBlock *InsertAtEnd)
|
|
: TerminatorInst(Instruction::Unwind, 0, 0, InsertAtEnd) {
|
|
}
|
|
|
|
virtual UnwindInst *clone() const;
|
|
|
|
unsigned getNumSuccessors() const { return 0; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const UnwindInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::Unwind;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
private:
|
|
virtual BasicBlock *getSuccessorV(unsigned idx) const;
|
|
virtual unsigned getNumSuccessorsV() const;
|
|
virtual void setSuccessorV(unsigned idx, BasicBlock *B);
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// UnreachableInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// UnreachableInst - This function has undefined behavior. In particular, the
|
|
/// presence of this instruction indicates some higher level knowledge that the
|
|
/// end of the block cannot be reached.
|
|
///
|
|
class UnreachableInst : public TerminatorInst {
|
|
public:
|
|
explicit UnreachableInst(Instruction *InsertBefore = 0)
|
|
: TerminatorInst(Instruction::Unreachable, 0, 0, InsertBefore) {
|
|
}
|
|
explicit UnreachableInst(BasicBlock *InsertAtEnd)
|
|
: TerminatorInst(Instruction::Unreachable, 0, 0, InsertAtEnd) {
|
|
}
|
|
|
|
virtual UnreachableInst *clone() const;
|
|
|
|
unsigned getNumSuccessors() const { return 0; }
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const UnreachableInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Instruction::Unreachable;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
private:
|
|
virtual BasicBlock *getSuccessorV(unsigned idx) const;
|
|
virtual unsigned getNumSuccessorsV() const;
|
|
virtual void setSuccessorV(unsigned idx, BasicBlock *B);
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// TruncInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a truncation of integer types.
|
|
class TruncInst : public CastInst {
|
|
/// Private copy constructor
|
|
TruncInst(const TruncInst &CI)
|
|
: CastInst(CI.getType(), Trunc, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
TruncInst(
|
|
Value *S, ///< The value to be truncated
|
|
const Type *Ty, ///< The (smaller) type to truncate to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
TruncInst(
|
|
Value *S, ///< The value to be truncated
|
|
const Type *Ty, ///< The (smaller) type to truncate to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical TruncInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const TruncInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == Trunc;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ZExtInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents zero extension of integer types.
|
|
class ZExtInst : public CastInst {
|
|
/// @brief Private copy constructor
|
|
ZExtInst(const ZExtInst &CI)
|
|
: CastInst(CI.getType(), ZExt, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
ZExtInst(
|
|
Value *S, ///< The value to be zero extended
|
|
const Type *Ty, ///< The type to zero extend to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end semantics.
|
|
ZExtInst(
|
|
Value *S, ///< The value to be zero extended
|
|
const Type *Ty, ///< The type to zero extend to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical ZExtInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ZExtInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == ZExt;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SExtInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a sign extension of integer types.
|
|
class SExtInst : public CastInst {
|
|
/// @brief Private copy constructor
|
|
SExtInst(const SExtInst &CI)
|
|
: CastInst(CI.getType(), SExt, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
SExtInst(
|
|
Value *S, ///< The value to be sign extended
|
|
const Type *Ty, ///< The type to sign extend to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
SExtInst(
|
|
Value *S, ///< The value to be sign extended
|
|
const Type *Ty, ///< The type to sign extend to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical SExtInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const SExtInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == SExt;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FPTruncInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a truncation of floating point types.
|
|
class FPTruncInst : public CastInst {
|
|
FPTruncInst(const FPTruncInst &CI)
|
|
: CastInst(CI.getType(), FPTrunc, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
FPTruncInst(
|
|
Value *S, ///< The value to be truncated
|
|
const Type *Ty, ///< The type to truncate to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
FPTruncInst(
|
|
Value *S, ///< The value to be truncated
|
|
const Type *Ty, ///< The type to truncate to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical FPTruncInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const FPTruncInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == FPTrunc;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FPExtInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents an extension of floating point types.
|
|
class FPExtInst : public CastInst {
|
|
FPExtInst(const FPExtInst &CI)
|
|
: CastInst(CI.getType(), FPExt, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
FPExtInst(
|
|
Value *S, ///< The value to be extended
|
|
const Type *Ty, ///< The type to extend to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
FPExtInst(
|
|
Value *S, ///< The value to be extended
|
|
const Type *Ty, ///< The type to extend to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical FPExtInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const FPExtInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == FPExt;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// UIToFPInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a cast unsigned integer to floating point.
|
|
class UIToFPInst : public CastInst {
|
|
UIToFPInst(const UIToFPInst &CI)
|
|
: CastInst(CI.getType(), UIToFP, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
UIToFPInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
UIToFPInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical UIToFPInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const UIToFPInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == UIToFP;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SIToFPInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a cast from signed integer to floating point.
|
|
class SIToFPInst : public CastInst {
|
|
SIToFPInst(const SIToFPInst &CI)
|
|
: CastInst(CI.getType(), SIToFP, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
SIToFPInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
SIToFPInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical SIToFPInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const SIToFPInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == SIToFP;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FPToUIInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a cast from floating point to unsigned integer
|
|
class FPToUIInst : public CastInst {
|
|
FPToUIInst(const FPToUIInst &CI)
|
|
: CastInst(CI.getType(), FPToUI, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
FPToUIInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
FPToUIInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Clone an identical FPToUIInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const FPToUIInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == FPToUI;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FPToSIInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a cast from floating point to signed integer.
|
|
class FPToSIInst : public CastInst {
|
|
FPToSIInst(const FPToSIInst &CI)
|
|
: CastInst(CI.getType(), FPToSI, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
FPToSIInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
FPToSIInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical FPToSIInst
|
|
virtual CastInst *clone() const;
|
|
|
|
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const FPToSIInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == FPToSI;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// IntToPtrInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a cast from an integer to a pointer.
|
|
class IntToPtrInst : public CastInst {
|
|
IntToPtrInst(const IntToPtrInst &CI)
|
|
: CastInst(CI.getType(), IntToPtr, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
IntToPtrInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
IntToPtrInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical IntToPtrInst
|
|
virtual CastInst *clone() const;
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const IntToPtrInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == IntToPtr;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// PtrToIntInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a cast from a pointer to an integer
|
|
class PtrToIntInst : public CastInst {
|
|
PtrToIntInst(const PtrToIntInst &CI)
|
|
: CastInst(CI.getType(), PtrToInt, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
PtrToIntInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
PtrToIntInst(
|
|
Value *S, ///< The value to be converted
|
|
const Type *Ty, ///< The type to convert to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical PtrToIntInst
|
|
virtual CastInst *clone() const;
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const PtrToIntInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == PtrToInt;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// BitCastInst Class
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// @brief This class represents a no-op cast from one type to another.
|
|
class BitCastInst : public CastInst {
|
|
BitCastInst(const BitCastInst &CI)
|
|
: CastInst(CI.getType(), BitCast, CI.getOperand(0)) {
|
|
}
|
|
public:
|
|
/// @brief Constructor with insert-before-instruction semantics
|
|
BitCastInst(
|
|
Value *S, ///< The value to be casted
|
|
const Type *Ty, ///< The type to casted to
|
|
const std::string &Name = "", ///< A name for the new instruction
|
|
Instruction *InsertBefore = 0 ///< Where to insert the new instruction
|
|
);
|
|
|
|
/// @brief Constructor with insert-at-end-of-block semantics
|
|
BitCastInst(
|
|
Value *S, ///< The value to be casted
|
|
const Type *Ty, ///< The type to casted to
|
|
const std::string &Name, ///< A name for the new instruction
|
|
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
|
|
);
|
|
|
|
/// @brief Clone an identical BitCastInst
|
|
virtual CastInst *clone() const;
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const BitCastInst *) { return true; }
|
|
static inline bool classof(const Instruction *I) {
|
|
return I->getOpcode() == BitCast;
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Instruction>(V) && classof(cast<Instruction>(V));
|
|
}
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|