Date: Thu, 14 Jan 2021 09:22:30 -0500 From: Ed Maste <emaste@freebsd.org> To: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: Some fun with -O2 Message-ID: <CAPyFy2CY_tMo=%2BeX5E0_Yp=c=1Ei0v6e5p1uvVaLH7%2BXTisoBw@mail.gmail.com> In-Reply-To: <YAA2a4hBEc4xWJ3Z@graf.pompo.net> References: <YAAqI08bgBtfpssP@graf.pompo.net> <YAAuouAngRyT7Dw0@kib.kiev.ua> <YAA2a4hBEc4xWJ3Z@graf.pompo.net>
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On Thu, 14 Jan 2021 at 07:17, Thierry Thomas <thierry@freebsd.org> wrote: > > > Workaround is to add -fwrapv compiler switch. > > Indeed, but the fun part is the different behaviour with / without -O2. Perhaps fun, but not surprising; this is a consequence of some optimization. Can we fix this in autoconf and then have math/oleo regenerate configure?
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