#include "llvm/Target/TargetMachine.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/Statistic.h"
-#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
using namespace llvm;
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG();
AU.addRequired<MachineDominatorTree>();
+ AU.addRequired<SlotIndexes>();
+ AU.addPreserved<SlotIndexes>();
AU.addRequired<LiveIntervals>();
// TODO: Actually make this true.
static bool isLiveIn(unsigned r, MachineBasicBlock* MBB,
LiveIntervals& LI) {
LiveInterval& I = LI.getOrCreateInterval(r);
- LiveIndex idx = LI.getMBBStartIdx(MBB);
+ SlotIndex idx = LI.getMBBStartIdx(MBB);
return I.liveAt(idx);
}
}
LiveInterval& PI = LI.getOrCreateInterval(DestReg);
- LiveIndex pIdx = LI.getDefIndex(LI.getInstructionIndex(P));
+ SlotIndex pIdx = LI.getInstructionIndex(P).getDefIndex();
VNInfo* PVN = PI.getLiveRangeContaining(pIdx)->valno;
PhiValueNumber.insert(std::make_pair(DestReg, PVN->id));
LiveInterval& I = LI.getInterval(curr.second);
MachineBasicBlock::iterator term = MBB->getFirstTerminator();
- LiveIndex endIdx = LiveIndex();
+ SlotIndex endIdx = SlotIndex();
if (term != MBB->end())
endIdx = LI.getInstructionIndex(term);
else
// Renumber the instructions so that we can perform the index computations
// needed to create new live intervals.
- LI.computeNumbering();
+ LI.renumber();
// For copies that we inserted at the ends of predecessors, we construct
// live intervals. This is pretty easy, since we know that the destination
InsertedPHIDests.begin(), E = InsertedPHIDests.end(); I != E; ++I) {
if (RegHandled.insert(I->first).second) {
LiveInterval& Int = LI.getOrCreateInterval(I->first);
- LiveIndex instrIdx = LI.getInstructionIndex(I->second);
- if (Int.liveAt(LI.getDefIndex(instrIdx)))
- Int.removeRange(LI.getDefIndex(instrIdx),
- LI.getNextSlot(LI.getMBBEndIdx(I->second->getParent())),
+ SlotIndex instrIdx = LI.getInstructionIndex(I->second);
+ if (Int.liveAt(instrIdx.getDefIndex()))
+ Int.removeRange(instrIdx.getDefIndex(),
+ LI.getMBBEndIdx(I->second->getParent()).getNextSlot(),
true);
LiveRange R = LI.addLiveRangeToEndOfBlock(I->first, I->second);
R.valno->setCopy(I->second);
- R.valno->def = LI.getDefIndex(LI.getInstructionIndex(I->second));
+ R.valno->def = LI.getInstructionIndex(I->second).getDefIndex();
}
}
}
Stacks[I->getOperand(i).getReg()].size()) {
// Remove the live range for the old vreg.
LiveInterval& OldInt = LI.getInterval(I->getOperand(i).getReg());
- LiveInterval::iterator OldLR = OldInt.FindLiveRangeContaining(
- LI.getUseIndex(LI.getInstructionIndex(I)));
+ LiveInterval::iterator OldLR =
+ OldInt.FindLiveRangeContaining(LI.getInstructionIndex(I).getUseIndex());
if (OldLR != OldInt.end())
OldInt.removeRange(*OldLR, true);
VNInfo* FirstVN = *Int.vni_begin();
FirstVN->setHasPHIKill(false);
if (I->getOperand(i).isKill())
- FirstVN->addKill(
- LI.getUseIndex(LI.getInstructionIndex(I)));
+ FirstVN->addKill(LI.getInstructionIndex(I).getUseIndex());
LiveRange LR (LI.getMBBStartIdx(I->getParent()),
- LI.getNextSlot(LI.getUseIndex(LI.getInstructionIndex(I))),
+ LI.getInstructionIndex(I).getUseIndex().getNextSlot(),
FirstVN);
Int.addRange(LR);
LiveInterval& LHS = LI.getOrCreateInterval(primary);
LiveInterval& RHS = LI.getOrCreateInterval(secondary);
- LI.computeNumbering();
+ LI.renumber();
DenseMap<VNInfo*, VNInfo*> VNMap;
for (LiveInterval::iterator I = RHS.begin(), E = RHS.end(); I != E; ++I) {
LiveRange R = *I;
- LiveIndex Start = R.start;
- LiveIndex End = R.end;
+ SlotIndex Start = R.start;
+ SlotIndex End = R.end;
if (LHS.getLiveRangeContaining(Start))
return false;
TII->copyRegToReg(*SI->second, SI->second->getFirstTerminator(),
I->first, SI->first, RC, RC);
- LI.computeNumbering();
+ LI.renumber();
LiveInterval& Int = LI.getOrCreateInterval(I->first);
- LiveIndex instrIdx =
+ SlotIndex instrIdx =
LI.getInstructionIndex(--SI->second->getFirstTerminator());
- if (Int.liveAt(LI.getDefIndex(instrIdx)))
- Int.removeRange(LI.getDefIndex(instrIdx),
- LI.getNextSlot(LI.getMBBEndIdx(SI->second)), true);
+ if (Int.liveAt(instrIdx.getDefIndex()))
+ Int.removeRange(instrIdx.getDefIndex(),
+ LI.getMBBEndIdx(SI->second).getNextSlot(), true);
LiveRange R = LI.addLiveRangeToEndOfBlock(I->first,
--SI->second->getFirstTerminator());
R.valno->setCopy(--SI->second->getFirstTerminator());
- R.valno->def = LI.getDefIndex(instrIdx);
+ R.valno->def = instrIdx.getDefIndex();
DEBUG(errs() << "Renaming failed: " << SI->first << " -> "
<< I->first << "\n");
if (PI.containsOneValue()) {
LI.removeInterval(DestReg);
} else {
- LiveIndex idx = LI.getDefIndex(LI.getInstructionIndex(PInstr));
+ SlotIndex idx = LI.getInstructionIndex(PInstr).getDefIndex();
PI.removeRange(*PI.getLiveRangeContaining(idx), true);
}
} else {
LiveInterval& InputI = LI.getInterval(reg);
if (MBB != PInstr->getParent() &&
InputI.liveAt(LI.getMBBStartIdx(PInstr->getParent())) &&
- InputI.expiredAt(LI.getNextIndex(LI.getInstructionIndex(PInstr))))
+ InputI.expiredAt(LI.getInstructionIndex(PInstr).getNextIndex()))
InputI.removeRange(LI.getMBBStartIdx(PInstr->getParent()),
LI.getInstructionIndex(PInstr),
true);
// If the PHI is not dead, then the valno defined by the PHI
// now has an unknown def.
- LiveIndex idx = LI.getDefIndex(LI.getInstructionIndex(PInstr));
+ SlotIndex idx = LI.getInstructionIndex(PInstr).getDefIndex();
const LiveRange* PLR = PI.getLiveRangeContaining(idx);
PLR->valno->setIsPHIDef(true);
LiveRange R (LI.getMBBStartIdx(PInstr->getParent()),
PInstr->eraseFromParent();
}
- LI.computeNumbering();
+ LI.renumber();
return true;
}