[LLVMdev] Exception Handling Tables Question

[Duncan Sands]

Hi Bill,

> The reason to ask this is that
>> it could make the EH tables smaller and less cluttered if we elide  
>> those areas which we know don't throw (the functions called are marked  
>> 'nounwind', etc.).
> 
> Sure, that's what the SawPotentiallyThrowing boolean is for.  It is
> currently set for any call, but in fact needn't be set for 'nounwind'
> calls.  When I wrote this stuff 'nounwind' information wasn't available
> at the codegen level, which is why this isn't done.  In case you care,
> doing this would not hurt Ada :)

now I think about it further, I guess SawPotentiallyThrowing is not for
this exactly, you'll need to add some additional logic near this place.

Ciao,

Duncan.