[Patch / RFA] Use builtins for the classification macros

Richard Guenther rguenther@suse.de
Mon Nov 26 12:33:00 GMT 2007

On Mon, 26 Nov 2007, Paolo Carlini wrote:

> Hi,
> I'm finishing testing on x86_64-linux this patch: in my experiments, we
> get optimal code generation for constant arguments and we shave a couple
> of K of templates from a very used header. Can you imagine anything
> wrong with it? (I'm explicitly adding Richard in CC, as middle-end
> maintainer).

This should work.  Even in the original sources we eventually
dispatch to gcc builtins dependent on libc implementation details.


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