// Does this kill a previous version of this register?
if (MachineInstr *LastUse = PhysRegInfo[Reg]) {
if (PhysRegUsed[Reg])
- RegistersKilled.insert(std::make_pair(LastUse, Reg));
+ RegistersKilled[LastUse].push_back(Reg);
else
- RegistersDead.insert(std::make_pair(LastUse, Reg));
+ RegistersDead[LastUse].push_back(Reg);
}
PhysRegInfo[Reg] = MI;
PhysRegUsed[Reg] = false;
unsigned Alias = *AliasSet; ++AliasSet) {
if (MachineInstr *LastUse = PhysRegInfo[Alias]) {
if (PhysRegUsed[Alias])
- RegistersKilled.insert(std::make_pair(LastUse, Alias));
+ RegistersKilled[LastUse].push_back(Alias);
else
- RegistersDead.insert(std::make_pair(LastUse, Alias));
+ RegistersDead[LastUse].push_back(Alias);
}
PhysRegInfo[Alias] = MI;
PhysRegUsed[Alias] = false;
for (unsigned i = 0, e = VirtRegInfo.size(); i != e; ++i)
for (unsigned j = 0, e = VirtRegInfo[i].Kills.size(); j != e; ++j) {
if (VirtRegInfo[i].Kills[j] == VirtRegInfo[i].DefInst)
- RegistersDead.insert(std::make_pair(VirtRegInfo[i].Kills[j],
- i + MRegisterInfo::FirstVirtualRegister));
+ RegistersDead[VirtRegInfo[i].Kills[j]].push_back(
+ i + MRegisterInfo::FirstVirtualRegister);
else
- RegistersKilled.insert(std::make_pair(VirtRegInfo[i].Kills[j],
- i + MRegisterInfo::FirstVirtualRegister));
+ RegistersKilled[VirtRegInfo[i].Kills[j]].push_back(
+ i + MRegisterInfo::FirstVirtualRegister);
}
// Check to make sure there are no unreachable blocks in the MC CFG for the
// Move the killed information over...
killed_iterator I, E;
tie(I, E) = killed_range(OldMI);
- std::vector<unsigned> Regs;
- for (killed_iterator A = I; A != E; ++A)
- Regs.push_back(A->second);
- RegistersKilled.erase(I, E);
-
- for (unsigned i = 0, e = Regs.size(); i != e; ++i)
- RegistersKilled.insert(std::make_pair(NewMI, Regs[i]));
- Regs.clear();
+ if (I != E) {
+ std::vector<unsigned> &V = RegistersKilled[NewMI];
+ bool WasEmpty = V.empty();
+ V.insert(V.end(), I, E);
+ if (!WasEmpty)
+ std::sort(V.begin(), V.end()); // Keep the reg list sorted.
+ RegistersKilled.erase(OldMI);
+ }
// Move the dead information over...
tie(I, E) = dead_range(OldMI);
- for (killed_iterator A = I; A != E; ++A)
- Regs.push_back(A->second);
- RegistersDead.erase(I, E);
-
- for (unsigned i = 0, e = Regs.size(); i != e; ++i)
- RegistersDead.insert(std::make_pair(NewMI, Regs[i]));
+ if (I != E) {
+ std::vector<unsigned> &V = RegistersDead[NewMI];
+ bool WasEmpty = V.empty();
+ V.insert(V.end(), I, E);
+ if (!WasEmpty)
+ std::sort(V.begin(), V.end()); // Keep the reg list sorted.
+ RegistersDead.erase(OldMI);
+ }
}
// of any registers, or if the value itself is dead, we need to move this
// information over to the new copy we just inserted.
//
- std::pair<LiveVariables::killed_iterator, LiveVariables::killed_iterator>
- RKs = LV->killed_range(MPhi);
- std::vector<std::pair<MachineInstr*, unsigned> > Range;
- if (RKs.first != RKs.second) // Delete the range.
- LV->removeVirtualRegistersKilled(RKs.first, RKs.second);
+ LV->removeVirtualRegistersKilled(MPhi);
- RKs = LV->dead_range(MPhi);
+ std::pair<LiveVariables::killed_iterator, LiveVariables::killed_iterator>
+ RKs = LV->dead_range(MPhi);
if (RKs.first != RKs.second) {
- // Works as above...
- Range.assign(RKs.first, RKs.second);
- LV->removeVirtualRegistersDead(RKs.first, RKs.second);
- for (unsigned i = 0, e = Range.size(); i != e; ++i)
- LV->addVirtualRegisterDead(Range[i].second, PHICopy);
+ for (LiveVariables::killed_iterator I = RKs.first; I != RKs.second; ++I)
+ LV->addVirtualRegisterDead(*I, PHICopy);
+ LV->removeVirtualRegistersDead(MPhi);
}
}
//
for (LiveVariables::killed_iterator KI = LV->killed_begin(MI),
KE = LV->killed_end(MI); KI != KE; ++KI) {
- unsigned VirtReg = KI->second;
+ unsigned VirtReg = *KI;
unsigned PhysReg = VirtReg;
if (MRegisterInfo::isVirtualRegister(VirtReg)) {
// If the virtual register was never materialized into a register, it
//
for (LiveVariables::killed_iterator KI = LV->dead_begin(MI),
KE = LV->dead_end(MI); KI != KE; ++KI) {
- unsigned VirtReg = KI->second;
+ unsigned VirtReg = *KI;
unsigned PhysReg = VirtReg;
if (MRegisterInfo::isVirtualRegister(VirtReg)) {
unsigned &PhysRegSlot = getVirt2PhysRegMapSlot(VirtReg);