[PATCH, i386] Partially revert ix86_cannot_change_mode_class changes

Richard Henderson rth@redhat.com
Thu Feb 4 20:44:00 GMT 2016


On 02/05/2016 07:07 AM, Uros Bizjak wrote:
> Adding forgotten CCs...
>
> On Thu, Feb 4, 2016 at 8:49 PM, Uros Bizjak <ubizjak@gmail.com> wrote:
>> Hello!
>>
>> After PR rtl-optimization/69577 fix went in, it looks that we can
>> remove various kludges involving SSE and MMX register classes from
>> ix86_cannot_change_mode_class.
>>
>> 2016-02-04  Uros Bizjak  <ubizjak@gmail.com>
>>
>>      PR rtl-optimization/69577
>>      Revert:
>>      2015-10-29  Richard Henderson  <rth@redhat.com>
>>
>>      PR target/68124
>>      PR rtl-opt/67609
>>      * config/i386/i386.c (ix86_cannot_change_mode_class): Tighten
>>      sse check to the exact conditions of PR 67609.
>>
>> Patch was bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.
>>
>> rth, as the author of the patch the attached patch is reverting, does
>> the patch look OK to you?

Yes, reverting the cannot_change_mode_class kludge is fine now.


r~



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