On Thu 25-05-17 21:43:43, Nick Desaulniers wrote: > On Tue, May 16, 2017 at 10:27:46AM +0200, Michal Hocko wrote: > > I guess it is worth reporting this to clang bugzilla. Could you take > > care of that Nick? > > >From https://bugs.llvm.org//show_bug.cgi?id=33065#c5 > it seems that this is indeed a sequence bug in the previous version of > this code and not a compiler bug. You can read that response for the > properly-cited wording but my TL;DR/understanding is for the given code: > > struct foo bar = { > .a = (c = 0), > .b = c, > }; > > That the compiler is allowed to reorder the initializations of bar.a and > bar.b, so what the value of c here might not be what you expect. This is interesting because what I hear from our gcc people is something different. I am not in a possition to argue here, though. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
