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Re: [PATCH] [ARM] Fix PR57909 : ICE with internal memcpy and -mno-unaligned-access

From: Yvan Roux <yvan dot roux at linaro dot org>
To: Ramana Radhakrishnan <ramrad01 at arm dot com>
Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>, Patch Tracking <patches at linaro dot org>
Date: Fri, 18 Oct 2013 14:49:55 +0200
Subject: Re: [PATCH] [ARM] Fix PR57909 : ICE with internal memcpy and -mno-unaligned-access
Authentication-results: sourceware.org; auth=none
References: <CAD57uCdGEkRrWQSgUmB1ngTnNzxq0NHQ3ZGcjdq7Ln+-q=zLwQ at mail dot gmail dot com> <51E65CB5 dot 9090102 at arm dot com> <CAD57uCfiSW1uz8e8+jddN6pDboUO4XCz2csiV-V-DUA1x1u4gA at mail dot gmail dot com> <CAD57uCcASz_6ni_30cGBUaPb=+ab2iK0QftELs_UQ1BCjqsYMg at mail dot gmail dot com>

Ping^2

I forgot this one was still pending.

On 13 August 2013 14:21, Yvan Roux <yvan.roux@linaro.org> wrote:
> Ping.
>
> On 23 July 2013 16:18, Yvan Roux <yvan.roux@linaro.org> wrote:
>> Hi,
>>
>> I forgot to add the test case with the PR fix, the attached patch add it.
>>
>> Thanks,
>> Yvan
>>
>> ChangeLog
>>
>> gcc/testsuite
>>
>> 2013-07-23  Yvan Roux  <yvan.roux@linaro.org>
>>
>>         PR target/57909
>>         * gcc.target/arm/pr57909.c: New test.
>>
>>
>> On 17 July 2013 10:58, Ramana Radhakrishnan <ramrad01@arm.com> wrote:
>>> On 07/17/13 09:53, Yvan Roux wrote:
>>>>
>>>> Hi,
>>>>
>>>> this patch fixes the issue described in PR57909, where we have an ICE
>>>> during the internal memcpy, as some UNSPEC_UNALIGNED insns are emitted
>>>> even if -mno-unaligned-access flag is passed. See the link below for a
>>>> more detailled description:
>>>>
>>>> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57909
>>>>
>>>> Tested without any regression.
>>>>
>>>> Thanks,
>>>> Yvan
>>>>
>>>> ChangeLog
>>>>
>>>> gcc/
>>>>
>>>> 2013-07-17  Yvan Roux  <yvan.roux@linaro.org>
>>>>
>>>>          PR target/57909
>>>>          * config/arm/arm.c (gen_movmem_ldrd_strd): Fix unaligned
>>>> load/store
>>>>          usage in HI mode.
>>>>
>>>
>>> Ok.
>>>
>>> regards
>>> Ramana
>>>
>>>

Attachment: pr57909-test.diff
Description: Binary data

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