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| author | Jason Merrill <jason@redhat.com> | 2010-05-03 17:16:40 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@gcc.gnu.org> | 2010-05-03 17:16:40 -0400 |
| commit | cbb4feb38e39bac728d1a0d053f14d9868d99e8d (patch) | |
| tree | f66f3527bad37dd8ad2f5c0b5d0966b9ca678f5b /gcc/c.opt | |
| parent | e492f63ba96ba25a74ebbfab09cb12d403c0bc1d (diff) | |
| download | gcc-cbb4feb38e39bac728d1a0d053f14d9868d99e8d.tar.gz | |
re PR c++/43680 ([DR 1022] G++ is too aggressive in optimizing away bounds checking with enums)
PR c++/43680
gcc:
* c.opt (-fstrict-enums): New.
* doc/invoke.texi (C++ Dialect Options): Document -fstrict-enums.
gcc/cp:
* decl.c (finish_enum): Use the TYPE_MIN_VALUE and TYPE_MAX_VALUE
from the selected underlying type unless -fstrict-enums. Set
ENUM_UNDERLYING_TYPE to have the restricted range.
* cvt.c (type_promotes_to): Use ENUM_UNDERLYING_TYPE.
* class.c (check_bitfield_decl): Likewise.
From-SVN: r159006
Diffstat (limited to 'gcc/c.opt')
| -rw-r--r-- | gcc/c.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c.opt b/gcc/c.opt index 2e1933cd0d1..3ab29830886 100644 --- a/gcc/c.opt +++ b/gcc/c.opt @@ -783,6 +783,10 @@ fstats C++ ObjC++ Display statistics accumulated during compilation +fstrict-enums +C++ ObjC++ Optimization Var(flag_strict_enums) +Assume that values of enumeration type are always within the minimum range of that type + fstrict-prototype C++ ObjC++ |