From: "Alex Bennée" <alex.bennee@linaro.org>
To: luoyonggang@gmail.com
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org
Subject: Re: About hardfloat in ppc
Date: Mon, 27 Apr 2020 10:42:41 +0100 [thread overview]
Message-ID: <87lfmhl0xa.fsf@linaro.org> (raw)
In-Reply-To: <CAE2XoE-ZSgtceSe5wYDm3cXf8+hTvJhD5PqZSrrFW5625LcSWg@mail.gmail.com>
罗勇刚(Yonggang Luo) <luoyonggang@gmail.com> writes:
> Because ppc fpu-helper are always clearing float_flag_inexact,
> So is that possible to optimize the performance when float_flag_inexact
> are cleared?
There was some discussion about this in the last thread about enabling
hardfloat for PPC. See the thread:
Subject: [RFC PATCH v2] target/ppc: Enable hardfloat for PPC
Date: Tue, 18 Feb 2020 18:10:16 +0100
Message-Id: <20200218171702.979F074637D@zero.eik.bme.hu>
However in short the problem is if the float_flag_inexact is clear you
must use softfloat so you can properly calculate the inexact status. We
can't take advantage of the inexact stickiness without loosing the
fidelity of the calculation.
--
Alex Bennée
next prev parent reply other threads:[~2020-04-27 9:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-27 6:39 About hardfloat in ppc 罗勇刚(Yonggang Luo)
2020-04-27 9:42 ` Alex Bennée [this message]
2020-04-27 10:34 ` BALATON Zoltan
2020-04-27 11:10 ` Alex Bennée
2020-04-27 21:18 ` 罗勇刚(Yonggang Luo)
2020-04-28 8:36 ` Alex Bennée
2020-04-28 14:29 ` 罗勇刚(Yonggang Luo)
2020-04-29 10:17 ` R: " Dino Papararo
2020-04-29 10:31 ` Dino Papararo
2020-04-29 11:57 ` Alex Bennée
2020-04-29 12:33 ` 罗勇刚(Yonggang Luo)
2020-04-29 13:38 ` Alex Bennée
2020-04-29 14:31 ` R: " Dino Papararo
2020-04-29 14:49 ` Peter Maydell
2020-04-29 18:25 ` R: " Alex Bennée
2020-04-30 0:20 ` 罗勇刚(Yonggang Luo)
2020-04-30 2:18 ` Richard Henderson
2020-04-30 7:26 ` 罗勇刚(Yonggang Luo)
2020-04-30 8:11 ` Alex Bennée
2020-04-30 8:13 ` 罗勇刚(Yonggang Luo)
2020-04-30 15:35 ` BALATON Zoltan
2020-04-30 16:34 ` R: " Dino Papararo
2020-05-01 1:59 ` Programmingkid
2020-05-01 2:21 ` 罗勇刚(Yonggang Luo)
2020-05-01 11:58 ` BALATON Zoltan
2020-05-01 12:04 ` 罗勇刚(Yonggang Luo)
2020-05-01 13:10 ` Alex Bennée
2020-05-01 13:39 ` BALATON Zoltan
2020-05-01 14:01 ` Alex Bennée
2020-05-01 14:18 ` Richard Henderson
2020-05-01 16:25 ` 罗勇刚(Yonggang Luo)
2020-05-01 19:33 ` Alex Bennée
2020-05-01 16:29 ` 罗勇刚(Yonggang Luo)
2020-05-01 16:51 ` Richard Henderson
2020-05-01 17:49 ` 罗勇刚(Yonggang Luo)
2020-05-01 20:35 ` Richard Henderson
2020-04-29 23:12 ` R: " 罗勇刚(Yonggang Luo)
2020-04-30 15:16 ` BALATON Zoltan
2020-04-30 18:59 ` Alex Bennée
2020-04-30 20:17 ` BALATON Zoltan
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