On 18/07/11 17:58, Ian Lance Taylor wrote:

Look at add<mode>3_cc in gcc/config/i386/i386.md.  Look at how
add<dwi>3_doubleword splits to use it.


Thanks Ian, from what Richard said I need an add that doesn't modify carry in order to follow the approach there. Since I don't I guess I have to look for how it is done in mn10300 and rx ports.

cheers,

--
PMatos

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