divmod, div, mod

[Florent DEFAY]

Hi,

I need advice.
I am working on a new backend for a 16-bit machine.
I implemented div and mov with divmodM4 patterns and included
my own functions _udivmodqi4 _divmodqi4 _udivmodhi4 _divmodhi4 in libgcc.
Now the issue is that libgcc calls __udivhi3 and __umodhi3 (which are
not defined) in __divsi3.

My question is:
should I implement umodhi3 and udivhi3 and include them in libgcc so
__divsi3 is alright,
or should I implement divmodsi4 to override __divsi3 and __modsi3?

Thank you.

Regards.

Florent