[m-rev.] structure flattening

[Zoltan Somogyi]

On 02-May-2011, Peter Wang <novalazy at gmail.com> wrote:
> This could only work if foo and bar are known, and whose representations
> don't require the tag bits now used for variant.

Basically, you probably want to do it if (a) each argument type is a type
with only one alternative that uses the single_functor_tag, and (b) the number
of alternatives in the top level type does not exceed the number allowed
by the available number of tag bits (4 or 8).

> I have doubts that the gains would be enough to justify the effort,

The effort should be no more than a week, but I share your doubt.
Does Michael have a convincing application?

Zoltan.
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