From: Richard Henderson <richard.henderson@linaro.org>
To: "Alex Bennée" <alex.bennee@linaro.org>, qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
cohuck@redhat.com, "Emilio G. Cota" <cota@braap.org>,
Aurelien Jarno <aurelien@aurel32.net>
Subject: Re: [Qemu-devel] [PATCH v2 3/7] softfloat: enforce softfloat if the host's FMA is broken
Date: Thu, 17 Jan 2019 09:13:27 +1100 [thread overview]
Message-ID: <6db7653e-8c2c-3a68-d4b0-514a6d0d89ed@linaro.org> (raw)
In-Reply-To: <20190116202349.29272-4-alex.bennee@linaro.org>
On 1/17/19 7:23 AM, Alex Bennée wrote:
> From: "Emilio G. Cota" <cota@braap.org>
>
> The added branch to the FMA ops is marked as unlikely and therefore
> its impact on performance (measured with fp-bench) is within noise range
> when measured on an Intel(R) Xeon(R) Gold 6142 CPU @ 2.60GHz.
>
> Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
> Signed-off-by: Emilio G. Cota <cota@braap.org>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
> fpu/softfloat.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2019-01-16 22:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-16 20:23 [Qemu-devel] [PATCH v2 0/7] current fpu/next queue Alex Bennée
2019-01-16 20:23 ` [Qemu-devel] [PATCH v2 1/7] fp-bench: fix update_random_ops Alex Bennée
2019-01-16 20:23 ` [Qemu-devel] [PATCH v2 2/7] fp-bench: remove wrong exponent raise in fill_random Alex Bennée
2019-01-16 20:23 ` [Qemu-devel] [PATCH v2 3/7] softfloat: enforce softfloat if the host's FMA is broken Alex Bennée
2019-01-16 22:13 ` Richard Henderson [this message]
2019-01-16 20:23 ` [Qemu-devel] [PATCH v2 4/7] softfloat: fallback to __int128 maths for s390x and others Alex Bennée
2019-01-16 22:17 ` Richard Henderson
2019-01-17 7:48 ` Alex Bennée
2019-01-17 6:08 ` Thomas Huth
2019-01-16 20:23 ` [Qemu-devel] [PATCH v2 5/7] tests/Makefile: add floating point tests Alex Bennée
2019-01-16 20:23 ` [Qemu-devel] [PATCH v2 6/7] scripts/archive-source: include softfloat tests Alex Bennée
2019-01-16 20:23 ` [Qemu-devel] [PATCH v2 7/7] tests/Makfile: add check-softfloat rule Alex Bennée
2019-01-16 22:18 ` Richard Henderson
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