https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96952
Rich Felker <bugdal at aerifal dot cx> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bugdal at aerifal dot cx
--- Comment #3 from Rich Felker <bugdal at aerifal dot cx> ---
This answer does not seem satisfactory. Whether it will be optimized is not the
question. Just whether it's semantically defined. That should either be
universally true on GCC versions that offer the builtin (via a libgcc function
if nothing else is available) or target-specific (which is known at
preprocessing time).
