http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54486
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |diagnostic Status|UNCONFIRMED |NEW Last reconfirmed| |2012-09-05 Ever Confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-09-05 06:13:29 UTC --- Confirmed. Here is a shorter testcase that explicitly uses the builtins: #include <stdio.h> int main(void) { __builtin_printf("%zu\n", __builtin_strspn("abc", "abcdefg")); /* line 7 */ __builtin_printf("%zu\n", (size_t)__builtin_strspn("abc", "abcdefg")); /* line 8 */ __builtin_printf("%zu\n", __builtin_strlen("abc")); /* line 9 */ return 0; }