if ((MO.isDef() && MI->isRegTiedToUseOperand(i)) ||
IsImplicitDefUse(MI, MO)) {
const unsigned Reg = MO.getReg();
- PassthruRegs.insert(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
PassthruRegs.insert(*SubRegs);
}
}
if (!I->isImplicitDef())
break;
unsigned Reg = I->getOperand(0).getReg();
- ImpDefRegs.insert(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
ImpDefRegs.insert(*SubRegs);
++I;
}
if (MO.isUse() && Special) {
if (!KeepRegs.test(Reg)) {
- KeepRegs.set(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
KeepRegs.set(*SubRegs);
}
}
if (MO.isReg() && MO.isDef()) {
unsigned Reg = MO.getReg();
if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
- LivePhysRegs.reset(Reg);
// Check the subreg set, not the alias set, because a def
// of a super-register may still be partially live after
// this def.
- for (MCSubRegIterator SR(Reg, TRI); SR.isValid(); ++SR)
+ for (MCSubRegIterator SR(Reg, TRI,/*IncludeSelf=*/true);
+ SR.isValid(); ++SR)
LivePhysRegs.reset(*SR);
}
} else if (MO.isRegMask()) {
for (MachineBasicBlock::livein_iterator I = BB->livein_begin(),
E = BB->livein_end(); I != E; ++I) {
unsigned Reg = *I;
- Redefs.insert(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
Redefs.insert(*SubRegs);
}
}
if (MO.isDef())
Defs.push_back(Reg);
else if (MO.isKill()) {
- Redefs.erase(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
Redefs.erase(*SubRegs);
}
}
} else if (!RedefsByFalse.count(Reg)) {
// These are defined before ctrl flow reach the 'false' instructions.
// They cannot be modified by the 'true' instructions.
- ExtUses.insert(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
ExtUses.insert(*SubRegs);
}
}
for (unsigned i = 0, e = Defs.size(); i != e; ++i) {
unsigned Reg = Defs[i];
if (!ExtUses.count(Reg)) {
- RedefsByFalse.insert(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
RedefsByFalse.insert(*SubRegs);
}
}
CopyMap.erase(*AI);
AvailCopyMap.erase(*AI);
}
- CopyMap[Def] = MI;
- AvailCopyMap[Def] = MI;
- for (MCSubRegIterator SR(Def, TRI); SR.isValid(); ++SR) {
+ for (MCSubRegIterator SR(Def, TRI, /*IncludeSelf=*/true); SR.isValid();
+ ++SR) {
CopyMap[*SR] = MI;
AvailCopyMap[*SR] = MI;
}
report("MBB live-in list contains non-physical register", MBB);
continue;
}
- regsLive.insert(*I);
- for (MCSubRegIterator SubRegs(*I, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(*I, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
regsLive.insert(*SubRegs);
}
regsLiveInButUnused = regsLive;
assert(MFI && "Function has no frame info");
BitVector PR = MFI->getPristineRegs(MBB);
for (int I = PR.find_first(); I>0; I = PR.find_next(I)) {
- regsLive.insert(I);
- for (MCSubRegIterator SubRegs(I, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(I, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
regsLive.insert(*SubRegs);
}
for (MachineBasicBlock::livein_iterator I = (*SI)->livein_begin(),
E = (*SI)->livein_end(); I != E; ++I) {
unsigned Reg = *I;
- LiveRegs.set(Reg);
- // Repeat, for all subregs.
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ // Repeat, for reg and all subregs.
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
LiveRegs.set(*SubRegs);
}
}
// Ignore two-addr defs.
if (MI->isRegTiedToUseOperand(i)) continue;
- LiveRegs.reset(Reg);
-
- // Repeat for all subregs.
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ // Repeat for reg and all subregs.
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
LiveRegs.reset(*SubRegs);
}
unsigned Reg = MO.getReg();
if ((Reg == 0) || MRI.isReserved(Reg)) continue;
- LiveRegs.set(Reg);
-
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
LiveRegs.set(*SubRegs);
}
}
/// setUsed - Set the register and its sub-registers as being used.
void RegScavenger::setUsed(unsigned Reg) {
- RegsAvailable.reset(Reg);
-
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
RegsAvailable.reset(*SubRegs);
}
}
void RegScavenger::addRegWithSubRegs(BitVector &BV, unsigned Reg) {
- BV.set(Reg);
- for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ for (MCSubRegIterator SubRegs(Reg, TRI, /*IncludeSelf=*/true);
+ SubRegs.isValid(); ++SubRegs)
BV.set(*SubRegs);
}
for (unsigned i = 0, e = LocalUses.size(); i != e; ++i) {
unsigned Reg = LocalUses[i];
- Uses.insert(Reg);
- for (MCSubRegIterator Subreg(Reg, TRI); Subreg.isValid(); ++Subreg)
+ for (MCSubRegIterator Subreg(Reg, TRI, /*IncludeSelf=*/true);
+ Subreg.isValid(); ++Subreg)
Uses.insert(*Subreg);
}
for (unsigned i = 0, e = LocalDefs.size(); i != e; ++i) {
unsigned Reg = LocalDefs[i];
- Defs.insert(Reg);
- for (MCSubRegIterator Subreg(Reg, TRI); Subreg.isValid(); ++Subreg)
+ for (MCSubRegIterator Subreg(Reg, TRI, /*IncludeSelf=*/true);
+ Subreg.isValid(); ++Subreg)
Defs.insert(*Subreg);
if (Reg == ARM::CPSR)
continue;
const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
// Set the stack-pointer register and its aliases as reserved.
- Reserved.set(X86::RSP);
- for (MCSubRegIterator I(X86::RSP, this); I.isValid(); ++I)
+ for (MCSubRegIterator I(X86::RSP, this, /*IncludeSelf=*/true); I.isValid();
+ ++I)
Reserved.set(*I);
// Set the instruction pointer register and its aliases as reserved.
- Reserved.set(X86::RIP);
- for (MCSubRegIterator I(X86::RIP, this); I.isValid(); ++I)
+ for (MCSubRegIterator I(X86::RIP, this, /*IncludeSelf=*/true); I.isValid();
+ ++I)
Reserved.set(*I);
// Set the frame-pointer register and its aliases as reserved if needed.
if (TFI->hasFP(MF)) {
- Reserved.set(X86::RBP);
- for (MCSubRegIterator I(X86::RBP, this); I.isValid(); ++I)
+ for (MCSubRegIterator I(X86::RBP, this, /*IncludeSelf=*/true); I.isValid();
+ ++I)
Reserved.set(*I);
}
"Stack realignment in presence of dynamic allocas is not supported with"
"this calling convention.");
- Reserved.set(getBaseRegister());
- for (MCSubRegIterator I(getBaseRegister(), this); I.isValid(); ++I)
+ for (MCSubRegIterator I(getBaseRegister(), this, /*IncludeSelf=*/true);
+ I.isValid(); ++I)
Reserved.set(*I);
}