subreg transformation causes incorrect post_inc

[TabonyEE@austin.rr.com]

From: Mark Shinwell <shinwell@codesourcery.com>
> TabonyEE@austin.rr.com wrote:
> > My port, based on (GCC) 4.2.0 20061002 (experimental), is producing
> > incorrect code for the following test case:
> [snip]
> 
> I've only had a very quick look at your code, but I have a feeling 
> thatthis is an instance of the kind of slip-up with 
> GO_IF_MODE_DEPENDENT_ADDRESSthat my patch at 
> http://gcc.gnu.org/ml/gcc-patches/2006-08/msg00858.html is
> aimed at preventing.  (This patch is currently only applied to 
> addrmodesbranch.)
> 
> Mark

I will give it a try.  Thanks!

Charles J. Tabony