[llvm-commits] [llvm] r169218 - in /llvm/trunk: include/llvm/ lib/CodeGen/AsmPrinter/ lib/VMCore/ test/CodeGen/ARM/ test/CodeGen/Thumb/ test/CodeGen/X86/ test/DebugInfo/ test/DebugInfo/X86/ test/JitListener/

[Eric Christopher]

> is this about a default, used when the language front-end forgot to
> provide a
> lower bound?  For Ada there isn't really any sensible default, but 1 is
> better
> than 0.  The Ada front-end should just specify explicitly what the lower
> bound
> is for each object/type.  For Fortran 1 makes sense, but again better if
> the
> front-end is explicit about it.  I don't have time to read the rest of the
> thread right now, so I'm a bit lost as to what this is all about and why
> it is
> related to DIBuilder.  I've been trying hard not to have to understand how
> debug
> info works, but it sounds like those halcyon days are drawing to a close!
>

Nah, you're good. The defaults I mentioned above are just fine for the
languages,
I just didn't have a feel for if/how you could have a lower bound of zero
for
fortran/ada array types while the default is 1.

The DIBuilder bit was just a quick poke as DragonEgg is the only remaining
supported
user of a lot of code in the debug support. I can probably just change it
myself at
some point as well. :)

-eric
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