[Bug debug/51358] incorrect/missing location for function arg, -O0, without VTA

[mark at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51358

--- Comment #6 from Mark Wielaard <mark at gcc dot gnu.org> 2012-08-12 20:30:36 UTC ---
(In reply to comment #5)
> (In reply to comment #4)
> > It would not be helpful, systemtap would then see no data [...]
> 
> Not quite; systemtap can search the PC ranges/line tables for a nearby address
> where a corrected location list would cover.

And at least systemtap could give an error/warning to the user the data isn't
available instead of providing bogus values...