From: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
To: Mark Wielaard <mark@klomp.org>, libc-alpha@sourceware.org
Subject: Re: cacosh/csin failures on s390x since CORE-MATH integration
Date: Thu, 7 Nov 2024 13:40:32 +0000 [thread overview]
Message-ID: <2d500943-2c3d-4fb8-b672-b1b3fb2981fe@linaro.org> (raw)
In-Reply-To: <1e193ae7f5eec66b437f81eda54e56f23c7bc848.camel@klomp.org>
On 07/11/24 10:06, Mark Wielaard wrote:
> Hi,
>
> Since the CORE-MATH integration the s390x buildbot shows the following
> 4 failures:
>
> FAIL: math/test-float-cacosh
> FAIL: math/test-float-csin
> FAIL: math/test-float32-cacosh
> FAIL: math/test-float32-csin
>
> https://builder.sourceware.org/buildbot/#/builders/glibc-fedora-s390x
>
> Bunsen logs:
> https://builder.sourceware.org/testrun/8e8049073b623360f34a0f72e7bd0beb4ede3891?filename=math%2Ftest-float-cacosh.out
> https://builder.sourceware.org/testrun/8e8049073b623360f34a0f72e7bd0beb4ede3891?filename=math%2Ftest-float-csin.out
> https://builder.sourceware.org/testrun/8e8049073b623360f34a0f72e7bd0beb4ede3891?filename=math%2Ftest-float32-cacosh.out
> https://builder.sourceware.org/testrun/8e8049073b623360f34a0f72e7bd0beb4ede3891?filename=math%2Ftest-float32-csin.out
>
> Cheers,
>
> Mark
It is expected [1], I had to adjust it on x86, arm, and powerpc as well.
The __expm1 is exact for the input range, but due how csin/cacoshf
handles the expm1 result there is addition cancellation errors.
In this case someone will need to run 'make update-ulps' on a real
hardware and update the libm-test-ulps.
[1] https://sourceware.org/pipermail/libc-alpha/2024-October/161131.html
next prev parent reply other threads:[~2024-11-07 13:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-07 13:06 Mark Wielaard
2024-11-07 13:40 ` Adhemerval Zanella Netto [this message]
2024-11-07 17:13 ` Mark Wielaard
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