forked from OSchip/llvm-project
Move the computation of the IsEarlyClobber flag into its own loop, since the
correct value is needed in every iteration of the loop for updating LiveIntervals. llvm-svn: 175603
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c04679f033
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@ -1215,6 +1215,11 @@ TwoAddressInstructionPass::processTiedPairs(MachineInstr *MI,
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TiedPairList &TiedPairs,
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unsigned &Dist) {
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bool IsEarlyClobber = false;
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for (unsigned tpi = 0, tpe = TiedPairs.size(); tpi != tpe; ++tpi) {
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const MachineOperand &DstMO = MI->getOperand(TiedPairs[tpi].second);
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IsEarlyClobber |= DstMO.isEarlyClobber();
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}
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bool RemovedKillFlag = false;
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bool AllUsesCopied = true;
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unsigned LastCopiedReg = 0;
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@ -1225,7 +1230,6 @@ TwoAddressInstructionPass::processTiedPairs(MachineInstr *MI,
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const MachineOperand &DstMO = MI->getOperand(DstIdx);
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unsigned RegA = DstMO.getReg();
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IsEarlyClobber |= DstMO.isEarlyClobber();
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// Grab RegB from the instruction because it may have changed if the
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// instruction was commuted.
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