This is the mail archive of the libc-alpha@sourceware.org mailing list for the glibc project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [PATCH 3/3] x86-64: Remove s_sincosf-sse2.S

From: Siddhesh Poyarekar <siddhesh at gotplt dot org>
To: "H.J. Lu" <hjl dot tools at gmail dot com>, libc-alpha at sourceware dot org
Date: Wed, 26 Dec 2018 15:22:55 +0530
Subject: Re: [PATCH 3/3] x86-64: Remove s_sincosf-sse2.S
References: <20181211202435.28601-1-hjl.tools@gmail.com> <20181211202435.28601-4-hjl.tools@gmail.com>

On 12/12/18 1:54 AM, H.J. Lu wrote:

The current s_sincosf.c is faster than s_sincosf-sse2.S.  On Broadwell
with FMA disabled, bench-sincosf shows:

        Before         After      Improvement
max    154.032        114.517        34%
min    6.25           5.609          11%
mean   14.8728        12.8589        15%

	* sysdeps/x86_64/fpu/s_sincosf.S: Removed.
	* sysdeps/x86_64/fpu/multiarch/s_sincosf-sse2.S: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_sincosf-sse2.c: New file.


OK.

Siddhesh

References:
- [PATCH 0/3] math: Update s_sincosf
  - From: H.J. Lu
- [PATCH 3/3] x86-64: Remove s_sincosf-sse2.S
  - From: H.J. Lu

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]