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-rw-r--r--include/llvm/BinaryOperators.h112
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diff --git a/include/llvm/BinaryOperators.h b/include/llvm/BinaryOperators.h
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--- a/include/llvm/BinaryOperators.h
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-//===-- llvm/BinaryOperators.h - BinaryOperator subclasses ------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines various classes for working with specific BinaryOperators,
-// exposing special properties that individual operations have.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_BINARY_OPTERATORS_H
-#define LLVM_BINARY_OPTERATORS_H
-
-#include "llvm/InstrTypes.h"
-
-namespace llvm {
-
-//===----------------------------------------------------------------------===//
-// SpecificBinaryOperator Class
-//===----------------------------------------------------------------------===//
-
-/// SpecificBinaryOperator - This is a base class for utility classes that
-/// provide additional information about binary operator instructions with
-/// specific opcodes.
-///
-class SpecificBinaryOperator : public BinaryOperator {
-private:
- // Do not implement any of these. The SpecificBinaryOperator class is
- // intended to be used as a utility, and is never itself instantiated.
- void *operator new(size_t, unsigned);
- void *operator new(size_t s);
- void Create(BinaryOps Op, Value *S1, Value *S2,
- const std::string &Name = "",
- Instruction *InsertBefore = 0);
- void Create(BinaryOps Op, Value *S1, Value *S2,
- const std::string &Name,
- BasicBlock *InsertAtEnd);
- SpecificBinaryOperator();
- ~SpecificBinaryOperator();
- void init(BinaryOps iType);
-};
-
-/// OverflowingBinaryOperator - Base class for integer arithmetic operators
-/// which may exhibit overflow - Add, Sub, and Mul.
-///
-class OverflowingBinaryOperator : public SpecificBinaryOperator {
-public:
- /// hasNoSignedOverflow - Test whether this operation is known to never
- /// undergo signed overflow.
- bool hasNoSignedOverflow() const {
- return SubclassOptionalData & (1 << 0);
- }
- void setHasNoSignedOverflow(bool B) {
- SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
- }
-
- /// hasNoUnsignedOverflow - Test whether this operation is known to never
- /// undergo unsigned overflow.
- bool hasNoUnsignedOverflow() const {
- return SubclassOptionalData & (1 << 1);
- }
- void setHasNoUnsignedOverflow(bool B) {
- SubclassOptionalData = (SubclassOptionalData & ~(1 << 1)) | (B << 1);
- }
-
- static inline bool classof(const OverflowingBinaryOperator *) { return true; }
- static inline bool classof(const BinaryOperator *BO) {
- return BO->getOpcode() == Instruction::Add ||
- BO->getOpcode() == Instruction::Sub ||
- BO->getOpcode() == Instruction::Mul;
- }
- static inline bool classof(const Instruction *I) {
- return I->isBinaryOp() && classof(cast<BinaryOperator>(I));
- }
- static inline bool classof(const Value *V) {
- return isa<Instruction>(V) && classof(cast<Instruction>(V));
- }
-};
-
-/// UDivInst - BinaryOperators with opcode Instruction::UDiv.
-///
-class UDivInst : public SpecificBinaryOperator {
-public:
- /// isExact - Test whether this division is known to be exact, with
- /// zero remainder.
- bool isExact() const {
- return SubclassOptionalData & (1 << 0);
- }
- void setIsExact(bool B) {
- SubclassOptionalData = (SubclassOptionalData & ~(1 << 0)) | (B << 0);
- }
-
- // Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const UDivInst *) { return true; }
- static inline bool classof(const BinaryOperator *BO) {
- return BO->getOpcode() == Instruction::UDiv;
- }
- static inline bool classof(const Instruction *I) {
- return I->isBinaryOp() && classof(cast<BinaryOperator>(I));
- }
- static inline bool classof(const Value *V) {
- return isa<Instruction>(V) && classof(cast<Instruction>(V));
- }
-};
-
-} // End llvm namespace
-
-#endif