On Fri, 13 Mar 2009, Paolo Bonzini wrote: > These are all the !SHIFT_COUNT_TRUNCATED targets. > > For 4.5 I would like to improve our RTL canonicalization so that no > out-of-range shifts are ever in the RTL representation. > > This in turn means that the description given by SHIFT_COUNT_TRUNCATED > must be exact. Right now !SHIFT_COUNT_TRUNCATED means "I don't know", > I want it to mean "it is never truncated".
For MMIX, shift counts are not truncated, FWIW. brgds, H-P