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...e doesn’t seem to be a convincing argument for ever allowing the same variable to have inconsistent values, or am I missing something ? Peter Lawrence. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20170608/14b5cb27/attachment.html>

Hi Peter, On Thu, Jun 8, 2017 at 9:41 AM, Peter Lawrence <peterl95124 at sbcglobal.net> wrote: > >> On Jun 7, 2017, at 2:23 PM, Nuno Lopes <nunoplopes at sapo.pt> wrote: >> >> Since most add/sub operations compiled from C have the nsw attribute, we cannot simply restrict movement of these instructions. > > Nuno, > I’m not saying the operations