[RFC/PATCH 0/3] ARM: Use udiv/sdiv for __aeabi_{u}idiv library functions

On 21 November 2015 at 23:21, Arnd Bergmann [off-list ref] wrote:

Regarding PJ4, it's still unclear whether that has the same
problem and it only reports idivt when it actually supports idiva,
or whether the lack of idiva support on PJ4 is instead the reason
why the ARM ARM was updated to have separate flags.

SDIV/IDIV were originally introduced for R and M profile only
and there the Thumb encodings of SDIV/IDIV are mandatory
whereas the ARM ones are optional (and weren't initially
defined at all). So if you're looking for CPUs with only the
Thumb encodings I would try checking older R profile cores
like the Cortex-R4.

thanks
-- PMM