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Fix a crash when debugging the coalescer. DebugValue instructions are not
in the coalescer's instruction map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104086 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -837,8 +837,13 @@ SimpleRegisterCoalescing::UpdateRegDefsUses(unsigned SrcReg, unsigned DstReg,
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UseMI->isRegTiedToDefOperand(&O-&UseMI->getOperand(0))))
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UseMI->addRegisterKilled(DstReg, tri_, true);
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}
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DEBUG(dbgs() << "\t\tupdated: " << li_->getInstructionIndex(UseMI)
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<< "\t" << *UseMI);
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DEBUG({
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dbgs() << "\t\tupdated: ";
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if (!UseMI->isDebugValue())
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dbgs() << li_->getInstructionIndex(UseMI) << "\t";
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dbgs() << *UseMI;
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});
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continue;
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}
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@ -853,8 +858,12 @@ SimpleRegisterCoalescing::UpdateRegDefsUses(unsigned SrcReg, unsigned DstReg,
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O.setSubReg(SubIdx);
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O.setReg(DstReg);
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DEBUG(dbgs() << "\t\tupdated: " << li_->getInstructionIndex(UseMI)
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<< "\t" << *UseMI);
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DEBUG({
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dbgs() << "\t\tupdated: ";
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if (!UseMI->isDebugValue())
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dbgs() << li_->getInstructionIndex(UseMI) << "\t";
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dbgs() << *UseMI;
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});
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// After updating the operand, check if the machine instruction has
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// become a copy. If so, update its val# information.
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