[Bug target/96582] aarch64:ICE during GIMPLE pass: veclower

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96582

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rsandifo at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2020-08-12

--- Comment #1 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
We shouldn't need to change the patterns for correctness.  I think
this is a bug in tree-vect-generic, which seems to be using the
byte size * 8 instead of the actual bit precision when generating
the BIT_FIELD_REFs.  This sounds similar to PR94980.

See also PR96366#c1 for more about the SVE_FULL stuff.