[PATCH] add insn implementing signbit to middle end and s390

Paolo Bonzini paolo.bonzini@lu.unisi.ch
Tue Apr 3 14:02:00 GMT 2007


Gellerich wrote:
> Here is the reworked version.
> 
> Concerning documentation: I would provide a description for the
> "Standard Pattern Names..." section in a separate patch. However, I
> saw that a quite similar pattern named isinf is not mentioned
> there. Is this pattern intentionally omitted, or should I add a
> description for that one, too?

I think you should call it signbit<mode>2, put it into the
common optab_table instead of defining a separate optab,
and initialize it using init_optab (in other words, mimic
what is done for isinf_optab).

Sorry for noticing it only now.

Paolo



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