https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119186
Xi Ruoyao <xry111 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |xry111 at gcc dot gnu.org
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
With -fsanitize=undefined:
t.c:13:30: runtime error: passing zero to ctz(), which is not a valid argument
Quote from the GCC manual:
-- Built-in Function: int __builtin_ctz (unsigned int X)
Returns the number of trailing 0-bits in X, starting at the least
significant bit position. If X is 0, the result is undefined.
