[PATCH, i386] Partially revert ix86_cannot_change_mode_class changes

Uros Bizjak ubizjak@gmail.com
Thu Feb 4 20:07:00 GMT 2016


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?
>
> Uros.



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