[Bug c++/33738] -Wtype-limits misses a warning when comparing enums

[dnovillo at gcc dot gnu dot org]

------- Comment #9 from dnovillo at gcc dot gnu dot org  2008-02-24 16:41 -------
Subject: Bug 33738

Author: dnovillo
Date: Sun Feb 24 16:40:32 2008
New Revision: 132591

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132591
Log:

        http://gcc.gnu.org/ml/gcc-patches/2008-02/msg01094.html

        PR 33738
        * tree-vrp.c (vrp_evaluate_conditional): With
        -Wtype-limits, emit a warning when comparing against a
        constant outside the natural range of OP0's type.
        * c.opt (Wtype-limits): Move ...
        * common.opt (Wtype-limits): ... here.

testsuite/ChangeLog

        PR 33738
        * g++.dg/warn/pr33738.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/warn/pr33738.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c.opt
    trunk/gcc/common.opt
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33738