1 //===-- llvm/CodeGen/MachineCodeForBasicBlock.h -----------------*- C++ -*--=//
3 // Collect the sequence of machine instructions for a basic block.
5 //===---------------------------------------------------------------------===//
7 #ifndef LLVM_CODEGEN_MACHINECODEFORBASICBLOCK_H
8 #define LLVM_CODEGEN_MACHINECODEFORBASICBLOCK_H
10 #include "llvm/BasicBlock.h"
13 extern AnnotationID MCFBB_AID;
15 class MachineCodeForBasicBlock : public Annotation {
16 std::vector<MachineInstr*> Insts;
18 MachineCodeForBasicBlock();
19 ~MachineCodeForBasicBlock() {}
21 // Static methods to retrieve or destroy the MachineCodeForBasicBlock
22 // object for a given basic block.
23 static MachineCodeForBasicBlock& get(const BasicBlock *bb) {
24 return *(MachineCodeForBasicBlock*)bb->getOrCreateAnnotation(MCFBB_AID);
27 static void destroy(const BasicBlock *bb) {
28 bb->deleteAnnotation(MCFBB_AID);
31 typedef std::vector<MachineInstr*>::iterator iterator;
32 typedef std::vector<MachineInstr*>::const_iterator const_iterator;
33 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
34 typedef std::reverse_iterator<iterator> reverse_iterator;
36 unsigned size() const { return Insts.size(); }
37 bool empty() const { return Insts.empty(); }
39 MachineInstr * operator[](unsigned i) const { return Insts[i]; }
40 MachineInstr *&operator[](unsigned i) { return Insts[i]; }
42 MachineInstr *front() const { return Insts.front(); }
43 MachineInstr *back() const { return Insts.back(); }
45 iterator begin() { return Insts.begin(); }
46 const_iterator begin() const { return Insts.begin(); }
47 iterator end() { return Insts.end(); }
48 const_iterator end() const { return Insts.end(); }
49 reverse_iterator rbegin() { return Insts.rbegin(); }
50 const_reverse_iterator rbegin() const { return Insts.rbegin(); }
51 reverse_iterator rend () { return Insts.rend(); }
52 const_reverse_iterator rend () const { return Insts.rend(); }
54 void push_back(MachineInstr *MI) { Insts.push_back(MI); }
56 void insert(iterator I, IT S, IT E) { Insts.insert(I, S, E); }
57 iterator insert(iterator I, MachineInstr *M) { return Insts.insert(I, M); }
59 // erase - Remove the specified element or range from the instruction list.
60 // These functions do not delete any instructions removed.
62 iterator erase(iterator I) { return Insts.erase(I); }
63 iterator erase(iterator I, iterator E) { return Insts.erase(I, E); }
65 MachineInstr *pop_back() {
66 MachineInstr *R = back();