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Change a variable from being an iterator to a raw MachineInstr*, to make
GDB use tolerable git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25064 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -247,7 +247,7 @@ addIntervalsForSpills(const LiveInterval &li, VirtRegMap &vrm, int slot) {
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index += InstrSlots::NUM;
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if (index == end) break;
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MachineBasicBlock::iterator mi = getInstructionFromIndex(index);
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MachineInstr *MI = getInstructionFromIndex(index);
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// NewRegLiveIn - This instruction might have multiple uses of the spilled
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// register. In this case, for the first use, keep track of the new vreg
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@ -256,26 +256,26 @@ addIntervalsForSpills(const LiveInterval &li, VirtRegMap &vrm, int slot) {
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unsigned NewRegLiveIn = 0;
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for_operand:
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for (unsigned i = 0; i != mi->getNumOperands(); ++i) {
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MachineOperand& mop = mi->getOperand(i);
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for (unsigned i = 0; i != MI->getNumOperands(); ++i) {
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MachineOperand& mop = MI->getOperand(i);
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if (mop.isRegister() && mop.getReg() == li.reg) {
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if (NewRegLiveIn && mop.isUse()) {
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// We already emitted a reload of this value, reuse it for
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// subsequent operands.
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mi->SetMachineOperandReg(i, NewRegLiveIn);
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MI->SetMachineOperandReg(i, NewRegLiveIn);
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DEBUG(std::cerr << "\t\t\t\treused reload into reg" << NewRegLiveIn
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<< " for operand #" << i << '\n');
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} else if (MachineInstr* fmi = mri_->foldMemoryOperand(mi, i, slot)) {
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} else if (MachineInstr* fmi = mri_->foldMemoryOperand(MI, i, slot)) {
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// Attempt to fold the memory reference into the instruction. If we
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// can do this, we don't need to insert spill code.
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if (lv_)
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lv_->instructionChanged(mi, fmi);
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vrm.virtFolded(li.reg, mi, i, fmi);
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mi2iMap_.erase(mi);
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lv_->instructionChanged(MI, fmi);
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vrm.virtFolded(li.reg, MI, i, fmi);
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mi2iMap_.erase(MI);
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i2miMap_[index/InstrSlots::NUM] = fmi;
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mi2iMap_[fmi] = index;
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MachineBasicBlock &MBB = *mi->getParent();
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mi = MBB.insert(MBB.erase(mi), fmi);
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MachineBasicBlock &MBB = *MI->getParent();
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MI = MBB.insert(MBB.erase(MI), fmi);
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++numFolded;
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// Folding the load/store can completely change the instruction in
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@ -300,7 +300,7 @@ addIntervalsForSpills(const LiveInterval &li, VirtRegMap &vrm, int slot) {
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// create a new register for this spill
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NewRegLiveIn = mf_->getSSARegMap()->createVirtualRegister(rc);
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mi->SetMachineOperandReg(i, NewRegLiveIn);
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MI->SetMachineOperandReg(i, NewRegLiveIn);
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vrm.grow();
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vrm.assignVirt2StackSlot(NewRegLiveIn, slot);
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LiveInterval& nI = getOrCreateInterval(NewRegLiveIn);
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@ -316,7 +316,7 @@ addIntervalsForSpills(const LiveInterval &li, VirtRegMap &vrm, int slot) {
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// update live variables if it is available
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if (lv_)
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lv_->addVirtualRegisterKilled(NewRegLiveIn, mi);
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lv_->addVirtualRegisterKilled(NewRegLiveIn, MI);
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// If this is a live in, reuse it for subsequent live-ins. If it's
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// a def, we can't do this.
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