[LLVMdev] Source file information.

[Chris Lattner]

On Jul 9, 2009, at 10:26 AM, David Greene wrote:

> On Thursday 09 July 2009 10:01, John Criswell wrote:
>> Dear All,
>>
>> To add to this, what you want to do is find the appropriate debug  
>> stop
>> point intrinsic and then use it to look up the information for that
>> instruction.
>
> Ick.  So line number information is only available at debug stop  
> points?
> That's bad when compiling optimized code since the debug stops kill
> optimization, don't they?

Optimizers explicitly ignore the debug intrinsics.

> I thought I saw something on the list recently about someone working  
> on
> integrating line number information directly into LLVM Instructions,  
> SDNodes,
> MachineInstructions, etc.  Am I mis-remembering?  If not, what's the  
> status
> of that?  We'd like to switch over to a proper scheme if we can.

I'll let Devang describe the plan,

-Chris