[Bug target/68332] [6 Regression] ICE: in rs6000_is_valid_mask, at config/rs6000/rs6000.c:17052 with __sync_and_and_fetch() @ powerpc

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68332

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> ---
Statistics for other variants:
      4  internal compiler error: RTL check: expected code 'const_int', have
'mem' in rs6000_is_valid_mask, at config/rs6000/rs6000.c:17052
      4  internal compiler error: RTL check: expected code 'const_int', have
'subreg' in rs6000_is_valid_mask, at config/rs6000/rs6000.c:17052
     16  internal compiler error: RTL check: expected code 'const_int', have
'reg' in rs6000_is_valid_mask, at config/rs6000/rs6000.c:17052