MachineBasicBlock.h revision deb9654056939a12981446f6ed1139dca3412746
1//===-- llvm/CodeGen/MachineCodeForBasicBlock.h -----------------*- C++ -*--=// 2// 3// Purpose: 4// Collect the sequence of machine instructions for a basic block. 5//===---------------------------------------------------------------------===// 6 7#ifndef LLVM_CODEGEN_MACHINECODEFORBASICBLOCK_H 8#define LLVM_CODEGEN_MACHINECODEFORBASICBLOCK_H 9 10#include "llvm/BasicBlock.h" 11#include "llvm/Annotation.h" 12#include <vector> 13class MachineInstr; 14 15extern AnnotationID MCFBB_AID; 16 17class MachineCodeForBasicBlock: public Annotation { 18 std::vector<MachineInstr*> Insts; 19public: 20 MachineCodeForBasicBlock(); 21 ~MachineCodeForBasicBlock() {} 22 23 // Static methods to retrieve or destroy the MachineCodeForBasicBlock 24 // object for a given basic block. 25 static MachineCodeForBasicBlock& get(const BasicBlock *bb) { 26 return *(MachineCodeForBasicBlock*)bb->getOrCreateAnnotation(MCFBB_AID); 27 } 28 29 static void destroy(const BasicBlock *bb) { 30 bb->deleteAnnotation(MCFBB_AID); 31 } 32 33 typedef std::vector<MachineInstr*>::iterator iterator; 34 typedef std::vector<MachineInstr*>::const_iterator const_iterator; 35 typedef std::reverse_iterator<const_iterator> const_reverse_iterator; 36 typedef std::reverse_iterator<iterator> reverse_iterator; 37 38 unsigned size() const { return Insts.size(); } 39 bool empty() const { return Insts.empty(); } 40 41 MachineInstr * operator[](unsigned i) const { return Insts[i]; } 42 MachineInstr *&operator[](unsigned i) { return Insts[i]; } 43 44 MachineInstr *front() const { return Insts.front(); } 45 MachineInstr *back() const { return Insts.back(); } 46 47 iterator begin() { return Insts.begin(); } 48 const_iterator begin() const { return Insts.begin(); } 49 iterator end() { return Insts.end(); } 50 const_iterator end() const { return Insts.end(); } 51 reverse_iterator rbegin() { return Insts.rbegin(); } 52 const_reverse_iterator rbegin() const { return Insts.rbegin(); } 53 reverse_iterator rend () { return Insts.rend(); } 54 const_reverse_iterator rend () const { return Insts.rend(); } 55 56 void push_back(MachineInstr *MI) { Insts.push_back(MI); } 57 template<typename IT> 58 void insert(iterator I, IT S, IT E) { Insts.insert(I, S, E); } 59 iterator insert(iterator I, MachineInstr *M) { return Insts.insert(I, M); } 60 61 // erase - Remove the specified range from the instruction list. This does 62 // not delete in instructions removed. 63 // 64 iterator erase(iterator I, iterator E) { return Insts.erase(I, E); } 65 66 MachineInstr *pop_back() { 67 MachineInstr *R = back(); 68 Insts.pop_back(); 69 return R; 70 } 71}; 72 73 74#endif 75