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Re: PATCH for Re: Problems with floatformat on Alpha


Blech.  Doublest is assuming an IEEE-ish host.  More particularly, it
appears that the mechanism doublest.c uses to construct doubles is not
usable on Alpha in non-IEE mode.  The instruction "addt $f10,$f11,$f10"
can trap if $f10 is a denormal - even if $f11 is 0.0.  I have test code
which demonstrates this to my satisfaction.  So when we accumulate in
dto, we take a SIGFPE.
Suggest a bug report explaining this (more amunition for getting a proper floating-point library).

Andrew



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