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Clean up RegAllocFast debug output

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llvm-svn: 103739
This commit is contained in:
Jakob Stoklund Olesen 2010-05-13 20:43:17 +00:00
parent 86825a9719
commit b698dfd8c7
1 changed files with 14 additions and 15 deletions
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29
lib/CodeGen/RegAllocFast.cpp
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@ -173,7 +173,6 @@ void RAFast::addKillFlag(LiveRegMap::iterator lri) {
MO.setIsDead();
else if (!LR.LastUse->isRegTiedToDefOperand(LR.LastOpNum))
MO.setIsKill();
DEBUG(dbgs() << " %reg" << lri->first << " killed: " << *LR.LastUse);
}
}
@ -190,7 +189,6 @@ void RAFast::killVirtReg(LiveRegMap::iterator lri) {
void RAFast::killVirtReg(unsigned VirtReg) {
assert(TargetRegisterInfo::isVirtualRegister(VirtReg) &&
"killVirtReg needs a virtual register");
DEBUG(dbgs() << " Killing %reg" << VirtReg << "\n");
LiveRegMap::iterator lri = LiveVirtRegs.find(VirtReg);
if (lri != LiveVirtRegs.end())
killVirtReg(lri);
@ -215,7 +213,7 @@ void RAFast::spillVirtReg(MachineBasicBlock &MBB,
if (LR.Dirty) {
LR.Dirty = false;
DEBUG(dbgs() << " Spilling register " << TRI->getName(LR.PhysReg)
DEBUG(dbgs() << "Spilling register " << TRI->getName(LR.PhysReg)
<< " containing %reg" << VirtReg);
const TargetRegisterClass *RC = MRI->getRegClass(VirtReg);
int FrameIndex = getStackSpaceFor(VirtReg, RC);
@ -323,7 +321,7 @@ void RAFast::spillPhysReg(MachineBasicBlock &MBB, MachineInstr *MI,
///
RAFast::LiveRegMap::iterator
RAFast::assignVirtToPhysReg(unsigned VirtReg, unsigned PhysReg) {
DEBUG(dbgs() << " Assigning %reg" << VirtReg << " to "
DEBUG(dbgs() << "Assigning %reg" << VirtReg << " to "
<< TRI->getName(PhysReg) << "\n");
PhysRegState[PhysReg] = VirtReg;
return LiveVirtRegs.insert(std::make_pair(VirtReg, PhysReg)).first;
@ -356,7 +354,7 @@ RAFast::LiveRegMap::iterator RAFast::allocVirtReg(MachineBasicBlock &MBB,
SrcReg == VirtReg && TargetRegisterInfo::isPhysicalRegister(DstReg) &&
RC->contains(DstReg) && !UsedInInstr.test(DstReg)) {
Hint = DstReg;
DEBUG(dbgs() << " %reg" << VirtReg << " gets hint from " << MI);
DEBUG(dbgs() << "%reg" << VirtReg << " gets hint from " << MI);
}
}
@ -369,8 +367,6 @@ RAFast::LiveRegMap::iterator RAFast::allocVirtReg(MachineBasicBlock &MBB,
case regReserved:
break;
default:
DEBUG(dbgs() << " %reg" << VirtReg << " really wants "
<< TRI->getName(Hint) << "\n");
spillVirtReg(MBB, MI, PhysRegState[Hint], true);
// Fall through.
case regFree:
@ -400,7 +396,7 @@ RAFast::LiveRegMap::iterator RAFast::allocVirtReg(MachineBasicBlock &MBB,
}
}
DEBUG(dbgs() << " Allocating %reg" << VirtReg << " from " << RC->getName()
DEBUG(dbgs() << "Allocating %reg" << VirtReg << " from " << RC->getName()
<< " candidate=" << TRI->getName(BestReg) << "\n");
// Try to extend the working set for RC if there were any disabled registers.
@ -434,7 +430,7 @@ RAFast::LiveRegMap::iterator RAFast::allocVirtReg(MachineBasicBlock &MBB,
}
}
if (Impossible) continue;
DEBUG(dbgs() << " - candidate " << TRI->getName(PhysReg)
DEBUG(dbgs() << "- candidate " << TRI->getName(PhysReg)
<< " cost=" << Cost << "\n");
if (!BestReg || Cost < BestCost) {
BestReg = PhysReg;
@ -511,7 +507,7 @@ unsigned RAFast::reloadVirtReg(MachineBasicBlock &MBB, MachineInstr *MI,
lri = allocVirtReg(MBB, MI, VirtReg, Hint);
const TargetRegisterClass *RC = MRI->getRegClass(VirtReg);
int FrameIndex = getStackSpaceFor(VirtReg, RC);
DEBUG(dbgs() << " Reloading %reg" << VirtReg << " into "
DEBUG(dbgs() << "Reloading %reg" << VirtReg << " into "
<< TRI->getName(lri->second.PhysReg) << "\n");
TII->loadRegFromStackSlot(MBB, MI, lri->second.PhysReg, FrameIndex, RC,
TRI);
@ -575,7 +571,7 @@ void RAFast::setPhysReg(MachineOperand &MO, unsigned PhysReg) {
}
void RAFast::AllocateBasicBlock(MachineBasicBlock &MBB) {
DEBUG(dbgs() << "\nBB#" << MBB.getNumber() << ", "<< MBB.getName() << "\n");
DEBUG(dbgs() << "\nAllocating " << MBB);
PhysRegState.assign(TRI->getNumRegs(), regDisabled);
assert(LiveVirtRegs.empty() && "Mapping not cleared form last block?");
@ -594,7 +590,7 @@ void RAFast::AllocateBasicBlock(MachineBasicBlock &MBB) {
MachineInstr *MI = MII++;
const TargetInstrDesc &TID = MI->getDesc();
DEBUG({
dbgs() << "\nStarting RegAlloc of: " << *MI << "Working set:";
dbgs() << "\n>> " << *MI << "Regs:";
for (unsigned Reg = 1, E = TRI->getNumRegs(); Reg != E; ++Reg) {
if (PhysRegState[Reg] == regDisabled) continue;
dbgs() << " " << TRI->getName(Reg);
@ -602,7 +598,7 @@ void RAFast::AllocateBasicBlock(MachineBasicBlock &MBB) {
case regFree:
break;
case regReserved:
dbgs() << "(resv)";
dbgs() << "*";
break;
default:
dbgs() << "=%reg" << PhysRegState[Reg];
@ -771,6 +767,8 @@ void RAFast::AllocateBasicBlock(MachineBasicBlock &MBB) {
PhysKills.clear();
MRI->addPhysRegsUsed(UsedInInstr);
DEBUG(dbgs() << "<< " << *MI);
}
// Spill all physical registers holding virtual registers now.
@ -785,8 +783,9 @@ void RAFast::AllocateBasicBlock(MachineBasicBlock &MBB) {
/// runOnMachineFunction - Register allocate the whole function
///
bool RAFast::runOnMachineFunction(MachineFunction &Fn) {
DEBUG(dbgs() << "Machine Function\n");
DEBUG(Fn.dump());
DEBUG(dbgs() << "********** FAST REGISTER ALLOCATION **********\n"
<< "********** Function: "
<< ((Value*)Fn.getFunction())->getName() << '\n');
MF = &Fn;
MRI = &MF->getRegInfo();
TM = &Fn.getTarget();