https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93176
--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> --- When you want the bits from bit MB to ME (inclusive) set, you can just do li t,-1 rldic d,T,MB,63-ME (bit # 0 is the high bit; can also do wrap-around masks this way). Confirmed.
