On 03/05/2012 05:24 PM, Peter Bigot wrote: > And is there any reason (other than it doesn't seem to have been done > before) to believe PSImode is the wrong way to support a > general-purpose 20-bit integral type in gcc?
If you're using 4.7.0, it should be possible to use FRACTIONAL_INT_MODE and get reasonable results. However, it hasn't been tested much, since the final bits of the patch series which would have added 40 bit int support to the C frontend didn't make it in. See the discussion following http://gcc.gnu.org/ml/gcc-patches/2011-07/msg00079.html Bernd
