[LLVMdev] DebugFactory

Devang Patel devang.patel at gmail.com
Tue Sep 22 09:21:04 PDT 2009

On Tue, Sep 22, 2009 at 12:14 AM, Talin <viridia at gmail.com> wrote:
> So, one feature of the late, lamented DebugInfoBuilder that I am missing
> quite badly, and which is not available in the current DIFactory, is the
> ability to specify structure offsets abstractly. The DebugFactory
> requires that you pass in structure offset information as ints, whereas
> DebugInfoBuilder had "offsetOf" and "alignOf" methods, similar to the
> "sizeOf" trick, that would create the constants for you in a way that
> didn't require your front end to know the sizes of things. So far I've
> been able to avoid having any references to target machines in my
> frontend, but now that I am trying to flesh out my debug info more fully
> I'm finding it hard to use DIFactory as-is.
> What I'd like to see is a set of alternative factory methods in
> DIFactory, where you pass in an LLVM type, and possibly a GEP index,
> plus all of the parameters that it can't figure out from looking at the
> type. So you can eliminate the offset, size, and alignment parameters
> since those can be figured out from the type.

Is it true that DIFactory can figure this out with Target info in all cases ?

More information about the llvm-dev mailing list