IA64 bootstrap problem for Ada

[Zack Weinberg]

kenner@vlsi1.ultra.nyu.edu (Richard Kenner) writes:

>     For most purposes these modes need to be regarded as having their full
>     storage size.  Thus, TYPE_SIZE, TYPE_SIZE_UNIT, and TYPE_ALIGN should
>     be consistent with GET_MODE_SIZE and GET_MODE_ALIGNMENT, not with
>     GET_MODE_BITSIZE.
>
> That's not what the code in layout_type does.  What it does is copy
> GET_MODE_BITSIZE to TYPE_SIZE and GET_MODE_SIZE to TYPE_UNIT_SIZE.  The
> right thing happens here by accident due to the alignment.

That needs to be fixed then.

> I don't see how to make Ada work with this sort of definition, though,
> because it mixes the number of signifcant bits and number of bits in the
> stored data in a way that I don't see how to separate.

I do not understand the problem.  The number of significant bits is
GET_MODE_BITSIZE (mode).  The number of bits in the stored data is
GET_MODE_SIZE (mode) * BITS_PER_UNIT.  How is this mixed?

zw