Date: Mon, 15 Feb 2021 13:03:36 -0800 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: freebsd-current@freebsd.org Subject: Re: HEADSUP: math is broken with clang and optimization Message-ID: <20210215210336.GA86544@troutmask.apl.washington.edu> In-Reply-To: <20210215204913.GA86364@troutmask.apl.washington.edu> References: <20210214215958.GA80810@troutmask.apl.washington.edu> <20210215204913.GA86364@troutmask.apl.washington.edu>
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On Mon, Feb 15, 2021 at 12:49:13PM -0800, Steve Kargl wrote: > On Sun, Feb 14, 2021 at 01:59:58PM -0800, Steve Kargl wrote: > > Just a headsup for anyone doing numerical work with > > FreeBSD-current. clang with optimization of -O1 or > > higher produces wrong results. Testing 1 million > > complex values of ccoshf and limiting |z| < 20, > > shows > > > > This is either an in-ling bug or discarding a cast issue. > With everything in the same file so clang has dp_ccosh > available to it when compiling main. > Code builds and works as expected with gcc 10.2and gcc 11.0.0. -- Steve
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