[Bug c++/69850] [6 Regression] unnecessary -Wnonnull-compare warning

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69850

--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Feb 19 16:02:51 2016
New Revision: 233561

URL: https://gcc.gnu.org/viewcvs?rev=233561&root=gcc&view=rev
Log:
        PR c++/69850
        * init.c (build_vec_delete_1): Set TREE_NO_WARNING on the NE_EXPR
        condition.
        * cp-gimplify.c (cp_fold): Propagate TREE_NO_WARNING from binary
        operators if folding preserved the binop, just with different
        arguments.

        * g++.dg/warn/Wnonnull-compare-2.C: New test.
        * g++.dg/warn/Wnonnull-compare-3.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/warn/Wnonnull-compare-2.C
    trunk/gcc/testsuite/g++.dg/warn/Wnonnull-compare-3.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-gimplify.c
    trunk/gcc/cp/init.c
    trunk/gcc/testsuite/ChangeLog