https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115127
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[12/13/14/15 Regression] |[12/13/14 Regression]
|passing zero to |passing zero to
|__builtin_ctz() check |__builtin_ctz() check
|sometimes missing since |sometimes missing since
|r12-151 |r12-151
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed on the trunk.
Not sure if this should be backported or not, it results in more code to be
rejected/diagnosed than before, so might not be desirable on release branches.