RFA: one more version of the patch for PR61360

[Uros Bizjak]

On Fri, Sep 26, 2014 at 10:31 PM, Vladimir Makarov <vmakarov@redhat.com> wrote:
> I guess we achieved the consensus about the following patch to fix PR61360
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61360
>
> The patch was successfully bootstrapped and tested (w/wo -march=amdfam10) on
> x86/x86-64.
>
> Is it ok to commit to trunk?
>
> 2014-09-26  Vladimir Makarov  <vmakarov@redhat.com>
>
>         PR target/61360
>         * lra.c (lra): Remove call of recog_init.
>         * recog.c (constrain_operands): Permit reg for memory constraint
>         when LRA is used.
>         * config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_sse):
>         Enable first alternative independently on RA stage.

Please also mention that this patch reverts:

2014-04-01  Richard Henderson  <rth@redhat.com>

    PR target/60704
    * config/i386/i386.md (*float<SWI48><MODEF>2_sse): Leave the second
    alternative enabled before register allocation.

The x86 part is OK.

BTW: I think that this patch should also be backported to 4.9 branch,
since the original patch and the PR60704 fix were also installed
there.

Thanks,
Uros.