[Bug tree-optimization/66423] [6 Regression] a % (1 << b) no longer gets folded to a & (1 << b) for unsigned a

[sch...@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66423

--- Comment #2 from Andreas Schwab <sch...@linux-m68k.org> ---
ITYM a & ((1 << b) - 1)