On 22 Mar 2015, at 23:04, Garrett Cooper <yaneurabeya_at_gmail.com> wrote: > > On Mar 22, 2015, at 15:01, Craig Rodrigues <rodrigc_at_FreeBSD.org> wrote: > > ... > >> OK, converting expr.y to use unsigned integers would require a bit of work. >> >> Can you commit your patch to the Makefile? It fixes the problem for now. > > +1 > > I’d still like to know why clang 3.5 doesn’t have this behavior though — there might be other potential issues lurking around that need to be solved (either here, in ports, or both). Because this version optimizes better around undefined behavior. There are most likely many issues lurking around, and most certainly in ports. I would recommend using UBSan to tackle this kind of thing. -Dimitry
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