[LLVMdev] MachineOperand: Subreg defines and the Undef flag

[Pranav D Bhandarkar]

>
>
> That sounds like a bug, probably adjustCopiesBackFrom needs to check
> ACopyMI->isFullCopy().
>
> Do you have a test case for this?
>
>
Yes and No. Yes because the example is from a unit testcase that I have. No
because it manifests itself only with my half baked pass that I was talking
about earlier in this thread.

Pranav
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