* config/m68hc11/larith.asm (divmodhi4): Empty for 68HC12.
(__mulsi3): Rewrite for 68HC12.
* config/m68hc11/m68hc11.md (divmodhi4): Use idivs for 68HC12.
Mark 'x' constraint with earlyclobber to prevent a
RELOAD_FOR_OTHER_ADDRESS to go in it.
(mulhi3_m68hc12): New pattern.
(mulhi3_m68hc11): Rename of mulhi3.
(mulhi3): New expand for 68HC12 optimisation.
(umulhisi3, mulhisi3): New patterns for 68HC12.
From-SVN: r41841
