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Re: reload problem:
On Jan 22, 2002, Dmitry <diwil@mail.ru> wrote:
> I missed a fact, that during instruction recognition, gcc does not look at the condition.
It does. It doesn't look at constraints, though. Is this what you
meant? I'll assume so henceforth.
> So, during reload pass it faces with a condition which cannot be satisfied.
The `0' constraint can be satisfied by reload: it suffices to save the
input register elsewhere, unless it's dead after that instruction, and
then store the output register in the intended output location.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
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