From: Will Newton <will.newton@linaro.org>
To: Richard Henderson <rth@twiddle.net>
Cc: libc-ports@sourceware.org, Patch Tracking <patches@linaro.org>
Subject: Re: [PATCH] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
Date: Mon, 15 Apr 2013 19:47:00 -0000 [thread overview]
Message-ID: <CANu=Dmi=STvpEA-Eg=7uPwBmz6D4Aks2bvg5q4oagEqrpD-i3g@mail.gmail.com> (raw)
In-Reply-To: <516C4CFF.9090900@twiddle.net>
On 15 April 2013 19:54, Richard Henderson <rth@twiddle.net> wrote:
> On 2013-04-15 20:48, Will Newton wrote:
>>
>> It should be only on armv7 (as its in the armv7 sub-directory) but I
>> will make sure to use DO_RET anyway. One slight issue is that the
>> PC-relative add is not available in thumb mode, but I guess I can just
>> use arm instead.
>
>
> It's in thumb2 mode, encoding T3. We never use thumb1.
It looks like encoding T3 is unpredictable for m in {13, 15} in the
ARMv7 ARM A8.8.6. Unless I'm looking in the wrong place? I can work
around it with a mov in any case.
--
Will Newton
Toolchain Working Group, Linaro
prev parent reply other threads:[~2013-04-15 19:47 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-15 9:57 Will Newton
2013-04-15 10:01 ` Will Newton
2013-04-15 10:23 ` Ondřej Bílka
2013-04-15 10:59 ` Will Newton
2013-04-15 13:38 ` Ondřej Bílka
2013-04-15 10:06 ` Måns Rullgård
2013-04-15 10:38 ` Will Newton
2013-04-15 10:46 ` Måns Rullgård
2013-04-15 10:49 ` Will Newton
2013-04-18 9:39 ` Ondřej Bílka
2013-04-18 9:47 ` Will Newton
2013-04-18 11:56 ` Ondřej Bílka
2013-04-15 17:14 ` Richard Henderson
2013-04-15 17:44 ` Will Newton
2013-04-15 18:22 ` Richard Henderson
2013-04-15 18:31 ` Will Newton
2013-04-15 18:37 ` Richard Henderson
2013-04-15 18:48 ` Will Newton
2013-04-15 19:12 ` Richard Henderson
2013-04-15 19:47 ` Will Newton [this message]
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