[PATCH, reginfo.c, i386.c] Backport fix for PR58139 to 4.8

[Vladimir Makarov]

On 01/14/2014 12:22 PM, Peter Bergner wrote:
> The mainline fix for PR58139 which is a wrong code gen bug was
> submitted here:
>
>     http://gcc.gnu.org/ml/gcc-patches/2013-08/msg00910.html
>
> and approved for mainline and 4.8 (after a few weeks) here:
>
>     http://gcc.gnu.org/ml/gcc-patches/2013-09/msg00134.html
>
> However, my fix exposed a latent x86 bug, so this patch was never
> committed to 4.8.  The latent x86 bug was fixed by Honza and I'd
> like to now ask to be able to backport my fix for PR58139 along
> with Honza's fix to 4.8.
>
> This passed bootstrap and regtesting on powerpc64-linux and
> I bootstrapped this on x86_64 and verified that the ICE seen
> when compiling the test case with only my patch in:
>
>     http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58269#c2
>
> is fixed when we add Honza's patch.  Ok for 4.8?
>
>
reginfo.c change is ok for me.  Thanks, Peter.