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Re: subreg transformation causes incorrect post_inc

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

Hhmm.  Is the intent of your patch simply to prevent the mistake of
backends not defining GO_IF_MODE_DEPENDENT_ADDRESS properly?  My backend
checks for POST_INC and POST_DEC in GO_IF_MODE_DEPENDENT_ADDRESS.

Charles J. Tabony
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