https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81783
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Author: mpolacek Date: Mon Sep 4 14:05:01 2017 New Revision: 251660 URL: https://gcc.gnu.org/viewcvs?rev=251660&root=gcc&view=rev Log: PR c/81783 * c-warn.c (warn_tautological_bitwise_comparison): New function. (warn_tautological_cmp): Call it. * doc/invoke.texi: Update -Wtautological-compare documentation. * c-c++-common/Wtautological-compare-5.c: New test. Added: trunk/gcc/testsuite/c-c++-common/Wtautological-compare-5.c Modified: trunk/gcc/ChangeLog trunk/gcc/c-family/ChangeLog trunk/gcc/c-family/c-warn.c trunk/gcc/doc/invoke.texi trunk/gcc/testsuite/ChangeLog