https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40752
--- Comment #37 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:6d00f052ef209bacdd93f503b0c5fb428cc6c434 commit r10-6181-g6d00f052ef209bacdd93f503b0c5fb428cc6c434 Author: Jason Merrill <ja...@redhat.com> Date: Thu Jan 23 10:37:18 2020 -0500 c-family: One more 40752 tweak for unsigned char. My last patch didn't fix all the failures on unsignd char targets. We were missing one warning because by suppressing -Wsign-conversion for the second operand of + we missed an overflow that we want to warn about, and we properly don't warn about unsigned / or %. PR testsuite/93391 - PR 40752 test fails with unsigned plain char. * c-warn.c (conversion_warning): Change -Wsign-conversion handling. * lib/target-supports.exp (check_effective_target_unsigned_char): New.
