[LLVMdev] A question about DBG_VALUE and Frame Index

[Pranav Bhandarkar]

> The offset field on a DBG_VALUE instruction refers to the user
> variable, not the first register argument.
> 
> Your DBG_VALUE above is saying that fooBar[-84] can be found in %R30.
> 
> You want something like:
> 
>   DBG_VALUE %R30, -84, 0, !"fooBar"
> 
> That is a target-dependent DBG_VALUE, you will need to implement the
> target hooks to create and parse it. Target-dependent DBG_VALUE instrs
> are recognized by having more than 3 operands.
> 
> /jakob

Right, thanks for the information Jakob.

I'll dig through the source code / documentation, looking for the necessary
target hooks and bother folks on this list, if I have questions regarding
this.

Thanks again,
Pranav