[LLVMdev] New backend help request.

[Krzysztof Parzyszek]

On 7/8/2015 11:40 AM, James Boulton wrote:
>
>          CALL <ga:@foo>, %A7<imp-use>, ...
>
> To me this looks like the result from the call (D0) is not being set
> somewhere to let LLVM know the register is available when it tries to copy
> it into the virtual register. I'm using the MSP430 target as reference, and
> I'm doing everything this target is, so I'm not sure what I'm missing.
>
> Any tips would be most appreciated.

The CALL instruction should have an implicit def of the register used to 
return a value.

-Krzysztof

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