This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC 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: [PING^2][PATCHv2, ARM, libgcc] New aeabi_idiv function for armv6-m

From: "Andre Vieira (lists)" <Andre dot SimoesDiasVieira at arm dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Mon, 25 Jan 2016 17:15:40 +0000
Subject: Re: [PING^2][PATCHv2, ARM, libgcc] New aeabi_idiv function for armv6-m
Authentication-results: sourceware.org; auth=none
References: <561D38F7 dot 809 at arm dot com> <562FAE51 dot 60903 at arm dot com>

Ping.

On 27/10/15 17:03, Andre Vieira wrote:

Ping.

BR,
Andre

On 13/10/15 18:01, Andre Vieira wrote:

This patch ports the aeabi_idiv routine from Linaro Cortex-Strings
(https://git.linaro.org/toolchain/cortex-strings.git), which was
contributed by ARM under Free BSD license.

The new aeabi_idiv routine is used to replace the one in
libgcc/config/arm/lib1funcs.S. This replacement happens within the
Thumb1 wrapper. The new routine is under LGPLv3 license.

The main advantage of this version is that it can improve the
performance of the aeabi_idiv function for Thumb1. This solution will
also increase the code size. So it will only be used if
__OPTIMIZE_SIZE__ is not defined.

Make check passed for armv6-m.

libgcc/ChangeLog:
2015-08-10  Hale Wang  <hale.wang@arm.com>
              Andre Vieira  <andre.simoesdiasvieira@arm.com>

    * config/arm/lib1funcs.S: Add new wrapper.

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