1 //===-- llvm/iOperators.h - Binary Operator node definitions ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the declarations of the Binary Operator classes.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_IOPERATORS_H
15 #define LLVM_IOPERATORS_H
17 #include "llvm/InstrTypes.h"
21 /// SetCondInst class - Represent a setCC operator, where CC is eq, ne, lt, gt,
24 class SetCondInst : public BinaryOperator {
27 SetCondInst(BinaryOps Opcode, Value *LHS, Value *RHS,
28 const std::string &Name = "", Instruction *InsertBefore = 0);
30 /// getInverseCondition - Return the inverse of the current condition opcode.
31 /// For example seteq -> setne, setgt -> setle, setlt -> setge, etc...
33 BinaryOps getInverseCondition() const {
34 return getInverseCondition(getOpcode());
37 /// getInverseCondition - Static version that you can use without an
38 /// instruction available.
40 static BinaryOps getInverseCondition(BinaryOps Opcode);
42 /// getSwappedCondition - Return the condition opcode that would be the result
43 /// of exchanging the two operands of the setcc instruction without changing
44 /// the result produced. Thus, seteq->seteq, setle->setge, setlt->setgt, etc.
46 BinaryOps getSwappedCondition() const {
47 return getSwappedCondition(getOpcode());
50 /// getSwappedCondition - Static version that you can use without an
51 /// instruction available.
53 static BinaryOps getSwappedCondition(BinaryOps Opcode);
56 // Methods for support type inquiry through isa, cast, and dyn_cast:
57 static inline bool classof(const SetCondInst *) { return true; }
58 static inline bool classof(const Instruction *I) {
59 return I->getOpcode() == SetEQ || I->getOpcode() == SetNE ||
60 I->getOpcode() == SetLE || I->getOpcode() == SetGE ||
61 I->getOpcode() == SetLT || I->getOpcode() == SetGT;
63 static inline bool classof(const Value *V) {
64 return isa<Instruction>(V) && classof(cast<Instruction>(V));
68 } // End llvm namespace