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//===-- llvm/CodeGen/MachineBasicBlock.h ------------------------*- C++ -*-===//
//
// Collect the sequence of machine instructions for a basic block.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_MACHINEBASICBLOCK_H
#define LLVM_CODEGEN_MACHINEBASICBLOCK_H
#include "llvm/BasicBlock.h"
class MachineInstr;
extern AnnotationID MCFBB_AID;
// FIXME: this should go away soon
class MachineBasicBlock;
typedef MachineBasicBlock MachineCodeForBasicBlock;
class MachineBasicBlock: public Annotation {
std::vector<MachineInstr*> Insts;
public:
MachineBasicBlock() : Annotation(MCFBB_AID) {}
~MachineBasicBlock() {}
// Static methods to retrieve or destroy the MachineBasicBlock
// object for a given basic block.
static MachineBasicBlock& get(const BasicBlock *bb) {
return *(MachineBasicBlock*)bb->getOrCreateAnnotation(MCFBB_AID);
}
static void destroy(const BasicBlock *bb) {
bb->deleteAnnotation(MCFBB_AID);
}
typedef std::vector<MachineInstr*>::iterator iterator;
typedef std::vector<MachineInstr*>::const_iterator const_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
unsigned size() const { return Insts.size(); }
bool empty() const { return Insts.empty(); }
MachineInstr * operator[](unsigned i) const { return Insts[i]; }
MachineInstr *&operator[](unsigned i) { return Insts[i]; }
MachineInstr *front() const { return Insts.front(); }
MachineInstr *back() const { return Insts.back(); }
iterator begin() { return Insts.begin(); }
const_iterator begin() const { return Insts.begin(); }
iterator end() { return Insts.end(); }
const_iterator end() const { return Insts.end(); }
reverse_iterator rbegin() { return Insts.rbegin(); }
const_reverse_iterator rbegin() const { return Insts.rbegin(); }
reverse_iterator rend () { return Insts.rend(); }
const_reverse_iterator rend () const { return Insts.rend(); }
void push_back(MachineInstr *MI) { Insts.push_back(MI); }
template<typename IT>
void insert(iterator I, IT S, IT E) { Insts.insert(I, S, E); }
iterator insert(iterator I, MachineInstr *M) { return Insts.insert(I, M); }
// erase - Remove the specified element or range from the instruction list.
// These functions do not delete any instructions removed.
//
iterator erase(iterator I) { return Insts.erase(I); }
iterator erase(iterator I, iterator E) { return Insts.erase(I, E); }
MachineInstr *pop_back() {
MachineInstr *R = back();
Insts.pop_back();
return R;
}
};
#endif
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