[Bug c/98269] gcc 6.5.0 __builtin_add_overflow() with small uint32_t values incorrectly detects overflow

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
For documentation, the bisection would be best, if you can preprocess the
testcase and git bisect it between some 6.0-ish and 8.0-ish trunk revisions, we
could know if the bug has been fixed or is just mere latent.