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Date: Thu, 13 Nov 2008 22:43:00 -0000
From: Uros Bizjak <ubizjak@gmail.com>
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To: "Kaveh R. GHAZI" <ghazi@caip.rutgers.edu>
CC: Richard Guenther <richard.guenther@gmail.com>,   Ralph Loader <suckfish@ihug.co.nz>,  gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] Fix for PR 37809 and 37807
References: <20081022181234.2acf7548@i.geek.nz>   <84fc9c000810220316t20257102t9ce3b53e95d3400b@mail.gmail.com>   <20081105205605.20d170c4@i.geek.nz> <84fc9c000811050120u27692d32ra32c27d1eefc2cdf@mail.gmail.com> <Pine.GSO.4.58.0811130102510.1521@caipclassic.rutgers.edu>
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Kaveh R. GHAZI wrote:

>>> I checked this and gen_lowpart instead of gen_lowpart_or_truncate
>>> appears fine.
>>>
>>> Attached is patch modified to use gen_lowpart, and with the test case
>>> cleaned up & changeloged.
>>>       
>> The patch is ok this way.
>>
>> Thanks,
>> Richard.
>>
>>     
>>>>> 2008-10-19  Ralph Loader  <suckfish@ihug.co.nz>
>>>>>
>>>>>        PR middle-end/37807, middle-end/37809
>>>>>        * combine.c (force_to_mode): Do not process vector types.
>>>>>
>>>>>        * rtlanal.c (nonzero_bits1): Do not process vector types.
>>>>>        (num_sign_bit_copies1): Likewise.
>>>>>           
>
> The testcase mmx-8.c crashes on the 4.3/4.2 branches, e.g.
> http://gcc.gnu.org/ml/gcc-testresults/2008-11/msg01056.html
>
> Was the patch tested on the branches prior to installation?
>   

Yes, but on i686-pc-linux-gnu only. You are testing on x86_64.

Uros.