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| author | Diego Novillo <dnovillo@google.com> | 2008-02-24 11:40:32 -0500 |
|---|---|---|
| committer | Diego Novillo <dnovillo@gcc.gnu.org> | 2008-02-24 11:40:32 -0500 |
| commit | faebccf9b6ec3f4bfdcc268fc55cf58c397bed6c (patch) | |
| tree | 771c35c481fdb2bb880ce72ab481848d5c8a4fa6 /gcc/common.opt | |
| parent | 88c7f01b6c31f28392eacfda320c90835a50199a (diff) | |
| download | gcc-faebccf9b6ec3f4bfdcc268fc55cf58c397bed6c.zip gcc-faebccf9b6ec3f4bfdcc268fc55cf58c397bed6c.tar.gz gcc-faebccf9b6ec3f4bfdcc268fc55cf58c397bed6c.tar.bz2 | |
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.
From-SVN: r132591
Diffstat (limited to 'gcc/common.opt')
| -rw-r--r-- | gcc/common.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt index ea48ba7..3a64d2a 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -193,6 +193,10 @@ Wsystem-headers Common Var(warn_system_headers) Warning Do not suppress warnings from system headers +Wtype-limits +Common Var(warn_type_limits) Init(-1) Warning +Warn if a comparison is always true or always false due to the limited range of the data type + Wuninitialized Common Var(warn_uninitialized) Warning Warn about uninitialized automatic variables |