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From: "Kaveh R. Ghazi" <ghazi@caip.rutgers.edu>
To: "Uros Bizjak" <ubizjak@gmail.com>
Cc: "Richard Guenther" <richard.guenther@gmail.com>, 	"Ralph Loader" <suckfish@ihug.co.nz>, 	<gcc-patches@gcc.gnu.org>
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Subject: Re: [PATCH] Fix for PR 37809 and 37807
Date: Wed, 19 Nov 2008 20:32:00 -0000
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From: "Uros Bizjak" <ubizjak@gmail.com>

> Kaveh R. GHAZI wrote:
>
>>>>>> 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
>>
> The fix for rtl-optimization/36438 [1], [2] needs to be backported to
> 4.3 and 4.2 branch.
>
> [1] http://gcc.gnu.org/PR36438
> [2] http://gcc.gnu.org/ml/gcc-patches/2008-06/msg00268.html
>
> 2008-11-13  Uros Bizjak  <ubizjak@gmail.com>
>
>    Backport from mainline:
>    2008-06-06  Uros Bizjak <ubizjak@gmail.com>
>
>    PR rtl-optimization/36438
>    * cse.c (fold_rtx) [ASHIFT, LSHIFTRT, ASHIFTRT]: Break out early
>    for vector shifts with constant scalar shift operands.
>
> testsuite/ChangeLog:
>
> 2008-11-13  Uros Bizjak  <ubizjak@gmail.com>
>
>    Backport from mainline:
>    2008-06-06  Uros Bizjak <ubizjak@gmail.com>
>
>    PR rtl-optimization/36438
>    * gcc.target/i386/pr36438.c
>
> Patch was bootstrapped and regression tested on x86_64-pc-linux-gnu
> {,-m32} and committed to 4.3 branch. It will be committed to 4.2 after
> regression test ends.
>
> Uros.

To confirm, the problem has been resolved on both branches.  Thanks for the 
quick fix.

--Kaveh