mainline "exploding"

[Zack Weinberg]

Geoff Keating <geoffk@geoffk.org> writes:

> Please remember, unit-at-a-time means very high memory use for some
> input files.  We cannot have it as the only choice unless there's some
> limit on peak memory use, and that means throwing away some function
> bodies early.

Please back this assertion up with actual test cases and numbers.  All
evidence to date is that unit-at-a-time takes less memory on real code.

zw