https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65120
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Tue Mar 10 06:38:57 2015 New Revision: 221299 URL: https://gcc.gnu.org/viewcvs?rev=221299&root=gcc&view=rev Log: PR c/65120 * c-common.c (warn_logical_not_parentheses): Don't warn for !x == 0 or !x != 0. * c-typeck.c (parser_build_binary_op): Check for tcc_comparison before preparing arguments to warn_logical_not_parentheses. * parser.c (cp_parser_binary_expression): Check for tcc_comparison before preparing arguments to warn_logical_not_parentheses. Use maybe_constant_value on rhs. * c-c++-common/pr49706.c (fn2): Don't expect warning if enumerator on rhs is 0. (fn4): New test. * c-c++-common/pr65120.c: New test. Added: trunk/gcc/testsuite/c-c++-common/pr65120.c Modified: trunk/gcc/c-family/ChangeLog trunk/gcc/c-family/c-common.c trunk/gcc/c/ChangeLog trunk/gcc/c/c-typeck.c trunk/gcc/cp/ChangeLog trunk/gcc/cp/parser.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/c-c++-common/pr49706.c
