https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81607
Marc Glisse <glisse at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |ice-checking Status|UNCONFIRMED |NEW Last reconfirmed| |2017-07-29 Target Milestone|--- |8.0 Ever confirmed|0 |1 --- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> --- The original dump has (void) (f = (char) ((long int) d.c << a)) (using long instead of int) This happens only for a bitfield of size 32, not 31 or 33, we probably get confused about a NOP conversion somewhere along the way.