#include "llvm/BasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Target/MRegisterInfo.h"
+#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetMachine.h"
-#include "Support/LeakDetector.h"
+#include "llvm/Support/LeakDetector.h"
+#include <algorithm>
using namespace llvm;
MachineBasicBlock::~MachineBasicBlock() {
LeakDetector::removeGarbageObject(this);
}
-
+std::ostream& llvm::operator<<(std::ostream &OS, const MachineBasicBlock &MBB) {
+ MBB.print(OS);
+ return OS;
+}
-// MBBs start out as #-1. When a MBB is added to a MachineFunction, it
+// MBBs start out as #-1. When a MBB is added to a MachineFunction, it
// gets the next available unique MBB number. If it is removed from a
// MachineFunction, it goes back to being #-1.
-void ilist_traits<MachineBasicBlock>::addNodeToList (MachineBasicBlock* N)
-{
+void ilist_traits<MachineBasicBlock>::addNodeToList(MachineBasicBlock* N) {
assert(N->Parent == 0 && "machine instruction already in a basic block");
N->Parent = Parent;
- N->Number = Parent->getNextMBBNumber();
+ N->Number = Parent->addToMBBNumbering(N);
LeakDetector::removeGarbageObject(N);
-
-
}
-void ilist_traits<MachineBasicBlock>::removeNodeFromList (MachineBasicBlock* N)
-{
+void ilist_traits<MachineBasicBlock>::removeNodeFromList(MachineBasicBlock* N) {
assert(N->Parent != 0 && "machine instruction not in a basic block");
- N->Parent = 0;
+ N->Parent->removeFromMBBNumbering(N->Number);
N->Number = -1;
+ N->Parent = 0;
LeakDetector::addGarbageObject(N);
}
-MachineInstr* ilist_traits<MachineInstr>::createNode()
-{
- MachineInstr* dummy = new MachineInstr(0, 0);
- LeakDetector::removeGarbageObject(dummy);
- return dummy;
+MachineInstr* ilist_traits<MachineInstr>::createSentinel() {
+ MachineInstr* dummy = new MachineInstr();
+ LeakDetector::removeGarbageObject(dummy);
+ return dummy;
}
-void ilist_traits<MachineInstr>::addNodeToList(MachineInstr* N)
-{
- assert(N->parent == 0 && "machine instruction already in a basic block");
- N->parent = parent;
- LeakDetector::removeGarbageObject(N);
+void ilist_traits<MachineInstr>::addNodeToList(MachineInstr* N) {
+ assert(N->parent == 0 && "machine instruction already in a basic block");
+ N->parent = parent;
+ LeakDetector::removeGarbageObject(N);
}
-void ilist_traits<MachineInstr>::removeNodeFromList(MachineInstr* N)
-{
- assert(N->parent != 0 && "machine instruction not in a basic block");
- N->parent = 0;
- LeakDetector::addGarbageObject(N);
+void ilist_traits<MachineInstr>::removeNodeFromList(MachineInstr* N) {
+ assert(N->parent != 0 && "machine instruction not in a basic block");
+ N->parent = 0;
+ LeakDetector::addGarbageObject(N);
}
void ilist_traits<MachineInstr>::transferNodesFromList(
- iplist<MachineInstr, ilist_traits<MachineInstr> >& toList,
- ilist_iterator<MachineInstr> first,
- ilist_iterator<MachineInstr> last)
-{
- if (parent != toList.parent)
- for (; first != last; ++first)
- first->parent = toList.parent;
+ iplist<MachineInstr, ilist_traits<MachineInstr> >& fromList,
+ ilist_iterator<MachineInstr> first,
+ ilist_iterator<MachineInstr> last) {
+ if (parent != fromList.parent)
+ for (; first != last; ++first)
+ first->parent = parent;
}
-MachineBasicBlock::iterator MachineBasicBlock::getFirstTerminator()
-{
+MachineBasicBlock::iterator MachineBasicBlock::getFirstTerminator() {
const TargetInstrInfo& TII = *getParent()->getTarget().getInstrInfo();
iterator I = end();
while (I != begin() && TII.isTerminatorInstr((--I)->getOpcode()));
return I;
}
-void MachineBasicBlock::dump() const
-{
- print(std::cerr);
+void MachineBasicBlock::dump() const {
+ print(*cerr.stream());
+}
+
+static inline void OutputReg(std::ostream &os, unsigned RegNo,
+ const MRegisterInfo *MRI = 0) {
+ if (!RegNo || MRegisterInfo::isPhysicalRegister(RegNo)) {
+ if (MRI)
+ os << " %" << MRI->get(RegNo).Name;
+ else
+ os << " %mreg(" << RegNo << ")";
+ } else
+ os << " %reg" << RegNo;
}
-void MachineBasicBlock::print(std::ostream &OS) const
-{
- if(!getParent()) {
- OS << "Can't print out MachineBasicBlock because parent MachineFunction is null\n";
+void MachineBasicBlock::print(std::ostream &OS) const {
+ const MachineFunction *MF = getParent();
+ if(!MF) {
+ OS << "Can't print out MachineBasicBlock because parent MachineFunction"
+ << " is null\n";
return;
}
- const BasicBlock *LBB = getBasicBlock();
- if(LBB)
- OS << "\n" << LBB->getName() << " (" << (const void*)this
- << ", LLVM BB @" << (const void*) LBB << "):\n";
- for (const_iterator I = begin(); I != end(); ++I) {
- OS << "\t";
- I->print(OS, getParent()->getTarget());
- }
+
+ const BasicBlock *LBB = getBasicBlock();
+ OS << "\n";
+ if (LBB) OS << LBB->getName();
+ OS << " (" << (const void*)this
+ << ", LLVM BB @" << (const void*) LBB << ", ID#" << getNumber()<< "):\n";
+
+ const MRegisterInfo *MRI = MF->getTarget().getRegisterInfo();
+ if (livein_begin() != livein_end()) {
+ OS << "Live Ins:";
+ for (const_livein_iterator I = livein_begin(),E = livein_end(); I != E; ++I)
+ OutputReg(OS, *I, MRI);
+ OS << "\n";
+ }
+ // Print the preds of this block according to the CFG.
+ if (!pred_empty()) {
+ OS << " Predecessors according to CFG:";
+ for (const_pred_iterator PI = pred_begin(), E = pred_end(); PI != E; ++PI)
+ OS << " " << *PI << " (#" << (*PI)->getNumber() << ")";
+ OS << "\n";
+ }
+
+ for (const_iterator I = begin(); I != end(); ++I) {
+ OS << "\t";
+ I->print(OS, &getParent()->getTarget());
+ }
+
+ // Print the successors of this block according to the CFG.
+ if (!succ_empty()) {
+ OS << " Successors according to CFG:";
+ for (const_succ_iterator SI = succ_begin(), E = succ_end(); SI != E; ++SI)
+ OS << " " << *SI << " (#" << (*SI)->getNumber() << ")";
+ OS << "\n";
+ }
+}
+
+void MachineBasicBlock::removeLiveIn(unsigned Reg) {
+ livein_iterator I = std::find(livein_begin(), livein_end(), Reg);
+ assert(I != livein_end() && "Not a live in!");
+ LiveIns.erase(I);
+}
+
+void MachineBasicBlock::moveBefore(MachineBasicBlock *NewAfter) {
+ MachineFunction::BasicBlockListType &BBList =getParent()->getBasicBlockList();
+ getParent()->getBasicBlockList().splice(NewAfter, BBList, this);
+}
+
+void MachineBasicBlock::moveAfter(MachineBasicBlock *NewBefore) {
+ MachineFunction::BasicBlockListType &BBList =getParent()->getBasicBlockList();
+ MachineFunction::iterator BBI = NewBefore;
+ getParent()->getBasicBlockList().splice(++BBI, BBList, this);
+}
+
+
+void MachineBasicBlock::addSuccessor(MachineBasicBlock *succ) {
+ Successors.push_back(succ);
+ succ->addPredecessor(this);
+}
+
+void MachineBasicBlock::removeSuccessor(MachineBasicBlock *succ) {
+ succ->removePredecessor(this);
+ succ_iterator I = std::find(Successors.begin(), Successors.end(), succ);
+ assert(I != Successors.end() && "Not a current successor!");
+ Successors.erase(I);
+}
+
+void MachineBasicBlock::removeSuccessor(succ_iterator I) {
+ assert(I != Successors.end() && "Not a current successor!");
+ (*I)->removePredecessor(this);
+ Successors.erase(I);
+}
+
+void MachineBasicBlock::addPredecessor(MachineBasicBlock *pred) {
+ Predecessors.push_back(pred);
+}
+
+void MachineBasicBlock::removePredecessor(MachineBasicBlock *pred) {
+ std::vector<MachineBasicBlock *>::iterator I =
+ std::find(Predecessors.begin(), Predecessors.end(), pred);
+ assert(I != Predecessors.end() && "Pred is not a predecessor of this block!");
+ Predecessors.erase(I);
}
projects / oota-llvm.git / blobdiff