[CM] s7: Whether to use WITH_GMP

bil at ccrma.Stanford.EDU bil at ccrma.Stanford.EDU
Fri Apr 14 04:41:22 PDT 2017

In the gmp version, it's probably safest to assume
everything is going through gmp. In cases where the
optimizer can ascertain ranges, s7 will use
faster code, but I just tore out half the optimizer,
and am rebuilding it.  So I don't know how the
in-between stuff interacts with gmp -- give me a
month or two!  My old timings indicated that gmp
could be 10 to 50 times slower than straight C (but at
least it gave the right answer).

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