http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49911
--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-08-06 15:58:47 UTC --- > So, Eric - are you still objecting to make VRP and the middle-end aligned > by ignoring TYPE_MIN/MAX_VALUE in VRP? Just to give a bit of context to the reader: this problem bit the Ada compiler since VRP had been introduced in 2004. At the time, the consensus was that the Ada compiler was lying to the middle-end, because objects of type T could have values that are outside [TYPE_MIN_VALUE:TYPE_MAX_VALUE] in some cases and this breaks an invariant of the middle-end. So we changed the Ada compiler in 2009. If it appears that the previous consensus was short-sighted and should now be reversed, fine with me, but please document what TYPE_MIN_VALUE/TYPE_MAX_VALUE mean under the new one. And if they don't mean anything, then remove them.
