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Handle regmasks in RegisterScavenging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151210 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -148,6 +148,8 @@ void RegScavenger::forward() {
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DefRegs.reset();
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for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
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const MachineOperand &MO = MI->getOperand(i);
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if (MO.isRegMask())
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(isPred ? DefRegs : KillRegs).setBitsNotInMask(MO.getRegMask());
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if (!MO.isReg())
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continue;
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unsigned Reg = MO.getReg();
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@ -279,6 +281,8 @@ unsigned RegScavenger::findSurvivorReg(MachineBasicBlock::iterator StartMI,
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// Remove any candidates touched by instruction.
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for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
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const MachineOperand &MO = MI->getOperand(i);
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if (MO.isRegMask())
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Candidates.clearBitsNotInMask(MO.getRegMask());
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if (!MO.isReg() || MO.isUndef() || !MO.getReg())
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continue;
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if (TargetRegisterInfo::isVirtualRegister(MO.getReg())) {
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