Re: [PATCH] Fix up rotate expansion (take 2)

[DJ Delorie]

The x86 case differs from the msp430 case in that the x86 case makes
the count a *smaller* mode (SI->QI) where the msp430 case makes it
*bigger* (HI->SI).  msp430 uses the "Handle expanding beyond a word"
case in convert_move() (msp430's word is HImode), ending in the
multiword-by-hand case.