On 10/27/07, Robert Dewar <[EMAIL PROTECTED]> wrote: > skaller wrote: > > > So I am guessing the Felix version is lucky there are > > no gratuitous temporaries to be saved when this happens, > > and the C code is unlucky and there are. > > > > Maybe someone who knows how the optimiser works can comment? > > One problem with departing from the ABI even on a local level > like this is that it wipes out lots of tools that depend on > ABI compliance for the entire call chain. I suspect the overall > gain is too small to be worth this hit.
If you make the function static then gcc can chose ABI-incompatible calling conventions. Richard.
