On Thu, Apr 23, 2015 at 08:25:51PM -0600, Jeff Law wrote: > What happens if we have used the enum inside an aggregate? Can we just > blindly change the alignment/precision like that? If you just forward declare an enum/struct, it has an incomplete type, so you cannot use it inside an aggregate. In fact, you can't do much with that until it's completed, except creating a pointer to it. E.g. applying sizeof to an incomplete type is forbidden. With my patch, we behave the same as clang.
Marek
