[Bug target/92379] rs6000.c:5598:13: runtime error: shift exponent 64 is too large for 64-bit type 'long int'

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92379

--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
It's not top priority; it is fine for stage 4, too.  Patches welcome.