[LLVMdev] DebugFactory

Devang Patel devang.patel at gmail.com
Tue Sep 22 09:21:52 PDT 2009

On Tue, Sep 22, 2009 at 9:21 AM, Devang Patel <devang.patel at gmail.com> wrote:
> 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 ?

oops... I meant to say "... without Target info..."


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