https://gcc.gnu.org/bugzilla/show_bug.cgi?id=4210
--- Comment #33 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> --- (In reply to Niels Möller from comment #32) > 4. I also wonder what happens if, for some reason, a constant invalid shift > count is passed through all the way to code generation? Most architectures > would represent a constant shift count for a 32-bit value as 5-bit field in > the opcode, and then the invalid shift counts aren't representable at all. > Will gcc silently ignore higher bits, That's undefined behavior, so that GCC can do whatever it wants for the generated code. > or is it an internal compiler error, This would not be acceptable.
