https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123390
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Your git blame is truncated due to a shallow checkout. The line dates to 1994: e2c671bad741 gcc/config/arm/arm.c (Richard Earnshaw 1994-06-23 16:02:41 +0000 5435) && (remainder & ((1 << set_zero_bit_copies) - 1)) == remainder)
