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A PHI in this basic block is a use in another basic block.
llvm-svn: 132805
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@ -239,7 +239,7 @@ bool TailDuplicatePass::TailDuplicateBlocks(MachineFunction &MF) {
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MachineOperand &UseMO = UI.getOperand();
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MachineInstr *UseMI = &*UI;
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++UI;
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if (UseMI->getParent() == DefBB)
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if (UseMI->getParent() == DefBB && !UseMI->isPHI())
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continue;
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SSAUpdate.RewriteUse(UseMO);
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}
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