Unable to remove stall at shed2

[Ian Lance Taylor]

On Wed, Aug 8, 2012 at 4:38 AM, shweta_guptasairam
<er.shwetagupta.edu@gmail.com> wrote:
>
> This stall is not getting removed in sched2 also
> r0=[ar6-0x34]
> [ar0++]=r0
>  ar2=[ar6-0x30]
> [ar0++]=ar2
>  ar1=[ar6-0x2c]
>  [ar0++]=ar1

This looks like a memory aliasing issue.  In order to rearrange this
code to avoid the stalls, the compiler needs to know for sure that the
writes through ar0 do not change the memory that ar6 points to.

Ian