From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: bharata@linux.ibm.com, alex.bennee@linaro.org, david@redhat.com
Subject: Re: [PATCH v2 00/10] softfloat: Implement float128_muladd
Date: Thu, 15 Oct 2020 10:23:12 -0700 [thread overview]
Message-ID: <32f5366f-ec30-a41d-1be8-c23eb9c1dd57@linaro.org> (raw)
In-Reply-To: <20200925152047.709901-1-richard.henderson@linaro.org>
Ping.
On 9/25/20 8:20 AM, Richard Henderson wrote:
> Plus assorted cleanups, passes tests/fp/fp-test.
>
> Changes in v2:
> * Add UInt256 type (david)
> * Rewrite and inline shift256RightJamming. This keeps the whole
> UInt256 in registers, avoiding long sequences of loads and stores.
> * Add x86_64 assembly for double shifts. I don't know why the
> compiler can't recognize this pattern, but swapping values in
> and out of %cl (the only register in the base isa that can
> hold a variable shift) is really ugly.
> * Add ppc64 assembly.
>
>
> r~
>
>
> Richard Henderson (10):
> softfloat: Use mulu64 for mul64To128
> softfloat: Use int128.h for some operations
> softfloat: Tidy a * b + inf return
> softfloat: Add float_cmask and constants
> softfloat: Inline pick_nan_muladd into its caller
> softfloat: Implement float128_muladd
> softfloat: Use x86_64 assembly for {add,sub}{192,256}
> softfloat: Use x86_64 assembly for sh[rl]_double
> softfloat: Use aarch64 assembly for {add,sub}{192,256}
> softfloat: Use ppc64 assembly for {add,sub}{192,256}
>
> include/fpu/softfloat-macros.h | 109 +++---
> include/fpu/softfloat.h | 2 +
> fpu/softfloat.c | 620 ++++++++++++++++++++++++++++++---
> tests/fp/fp-test.c | 2 +-
> tests/fp/wrap.c.inc | 12 +
> 5 files changed, 652 insertions(+), 93 deletions(-)
>
prev parent reply other threads:[~2020-10-15 17:25 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 15:20 [PATCH v2 00/10] softfloat: Implement float128_muladd Richard Henderson
2020-09-25 15:20 ` [PATCH v2 01/10] softfloat: Use mulu64 for mul64To128 Richard Henderson
2020-10-15 19:08 ` Alex Bennée
2020-09-25 15:20 ` [PATCH v2 02/10] softfloat: Use int128.h for some operations Richard Henderson
2020-10-15 19:10 ` Alex Bennée
2020-09-25 15:20 ` [PATCH v2 03/10] softfloat: Tidy a * b + inf return Richard Henderson
2020-10-16 9:40 ` Alex Bennée
2020-10-16 17:04 ` Philippe Mathieu-Daudé
2020-09-25 15:20 ` [PATCH v2 04/10] softfloat: Add float_cmask and constants Richard Henderson
2020-10-16 9:44 ` Alex Bennée
2020-09-25 15:20 ` [PATCH v2 05/10] softfloat: Inline pick_nan_muladd into its caller Richard Henderson
2020-10-16 16:20 ` Alex Bennée
2020-10-16 16:36 ` Richard Henderson
2020-10-18 21:06 ` [PATCH] softfpu: Generalize pick_nan_muladd to opaque structures Richard Henderson
2020-10-19 9:57 ` Alex Bennée
2020-09-25 15:20 ` [PATCH v2 06/10] softfloat: Implement float128_muladd Richard Henderson
2020-10-16 16:31 ` Alex Bennée
2020-10-16 16:55 ` Richard Henderson
2020-09-25 15:20 ` [PATCH v2 07/10] softfloat: Use x86_64 assembly for {add, sub}{192, 256} Richard Henderson
2020-09-25 15:20 ` [PATCH v2 08/10] softfloat: Use x86_64 assembly for sh[rl]_double Richard Henderson
2020-09-25 15:20 ` [PATCH v2 09/10] softfloat: Use aarch64 assembly for {add, sub}{192, 256} Richard Henderson
2020-09-25 15:20 ` [PATCH v2 10/10] softfloat: Use ppc64 " Richard Henderson
2020-10-15 17:23 ` Richard Henderson [this message]
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