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Re: [PATCH, v6] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- From: Will Newton <will dot newton at linaro dot org>
- To: "Joseph S. Myers" <joseph at codesourcery dot com>
- Cc: libc-ports at sourceware dot org, Patch Tracking <patches at linaro dot org>
- Date: Fri, 3 May 2013 22:14:09 +0100
- Subject: Re: [PATCH, v6] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- References: <518171B2 dot 5020504 at linaro dot org> <Pine dot LNX dot 4 dot 64 dot 1305032015060 dot 30366 at digraph dot polyomino dot org dot uk>
On 3 May 2013 21:18, Joseph S. Myers <joseph@codesourcery.com> wrote:
Hi Joseph,
>> This was tested on armv7l-unknown-linux-gnueabihf. One new testsuite
>
> I think string functions also need big-endian testing (which should be
> possible with userspace QEMU - you should be able to run the string tests
> that way, though not the whole testsuite). If such testing passes, this
> version is OK (though as Roland notes there's scope for further
> optimization in the __ARM_NEON__ case).
I have tested the same code using a big-endian qemu with the
cortex-strings tests which are taken from glibc:
http://bazaar.launchpad.net/~linaro-toolchain-dev/cortex-strings/trunk/view/head:/tests/test-memcpy.c
I haven't built glibc big-endian yet, but I can do that if you think
it would be valuable.
--
Will Newton
Toolchain Working Group, Linaro