2007-05-20 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
PR middle-end/7651
PR c++/11856
PR c/12963
PR c/23587
PR other/29694
* c.opt (Wtype-limits): New.
* doc/invoke.texi (Wtype-limits): Document it.
(Wextra): Enabled by -Wextra.
* c-opts.c (c_common_post_options): Enabled by -Wextra.
* c-common.c (shorten_compare): Warn with Wtype-limits.
testsuite/
* gcc.dg/compare6.c: Replace Wall with Wtype-limits.
* gcc.dg/Wtype-limits.c: New.
* gcc.dg/Wtype-limits-Wextra.c: New.
* gcc.dg/Wtype-limits-no.c: New.
* g++.dg/warn/Wtype-limits.C: New.
* g++.dg/warn/Wtype-limits-Wextra.C: New.
* g++.dg/warn/Wtype-limits-no.C: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124875
138bc75d-0d04-0410-961f-
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