[Bug target/98681] [8/9/10/11 Regression] aarch64: Invalid ubfiz instruction rejected by assembler

[ktkachov at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98681

ktkachov at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
                 CC|                            |ktkachov at gcc dot gnu.org
            Summary|aarch64: Invalid ubfiz      |[8/9/10/11 Regression]
                   |instruction rejected by     |aarch64: Invalid ubfiz
                   |assembler                   |instruction rejected by
                   |                            |assembler
           Priority|P3                          |P2
   Last reconfirmed|                            |2021-01-14

--- Comment #1 from ktkachov at gcc dot gnu.org ---
Confirmed. GCC 5 didn't generate the bogus assembly.
I suppose the predicate and/or constraint of *andim_ashift<mode>_bfiz needs
tightening