1 //===-- llvm/CodeGen/MachineBasicBlock.cpp ----------------------*- 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 // Collect the sequence of machine instructions for a basic block.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/CodeGen/MachineBasicBlock.h"
15 #include "llvm/BasicBlock.h"
16 #include "llvm/CodeGen/MachineFunction.h"
17 #include "llvm/CodeGen/MachineInstr.h"
18 #include "llvm/Target/TargetInstrInfo.h"
19 #include "llvm/Target/TargetMachine.h"
20 #include "Support/LeakDetector.h"
23 const MachineFunction *MachineBasicBlock::getParent() const {
24 // Get the parent by getting the Function parent of the basic block, and
25 // getting the MachineFunction from it.
26 return &MachineFunction::get(getBasicBlock()->getParent());
30 MachineInstr* ilist_traits<MachineInstr>::createNode()
32 MachineInstr* dummy = new MachineInstr(0, 0);
33 LeakDetector::removeGarbageObject(dummy);
37 void ilist_traits<MachineInstr>::addNodeToList(MachineInstr* N)
39 assert(N->parent == 0 && "machine instruction already in a basic block");
41 LeakDetector::removeGarbageObject(N);
44 void ilist_traits<MachineInstr>::removeNodeFromList(MachineInstr* N)
46 assert(N->parent != 0 && "machine instruction not in a basic block");
48 LeakDetector::addGarbageObject(N);
51 void ilist_traits<MachineInstr>::transferNodesFromList(
52 iplist<MachineInstr, ilist_traits<MachineInstr> >& toList,
53 ilist_iterator<MachineInstr> first,
54 ilist_iterator<MachineInstr> last)
56 if (parent != toList.parent)
57 for (; first != last; ++first)
58 first->parent = toList.parent;
61 MachineBasicBlock::iterator MachineBasicBlock::getFirstTerminator()
63 const TargetInstrInfo& TII = getParent()->getTarget().getInstrInfo();
65 while (I != begin() && TII.isTerminatorInstr((--I)->getOpcode()));
66 if (I != end() && !TII.isTerminatorInstr(I->getOpcode())) ++I;
70 void MachineBasicBlock::dump() const
75 void MachineBasicBlock::print(std::ostream &OS) const
77 const BasicBlock *LBB = getBasicBlock();
78 OS << "\n" << LBB->getName() << " (" << (const void*)LBB << "):\n";
79 for (const_iterator I = begin(); I != end(); ++I) {
81 I->print(OS, MachineFunction::get(LBB->getParent()).getTarget());