http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48766
--- Comment #7 from iant at google dot com <iant at google dot com> 2011-12-06 18:40:58 UTC --- > I don't know about -fstrict-overflow, but maybe that should be separate > (controlling whether, in cases where the default semantics are in effect, > certain optimizations relating to overflow are made). That was my intent for -fno-strict-overflow: it does not change the semantics, it just disables optimizations. Of course when -fwrapv or -ftrapv are set, overflow behaviour is defined, so -fno-strict-overflow does nothing. -fno-strict-overflow is only meaningful when neither -fwrapv nor -ftrapv are set.
