subreg transformation causes incorrect post_inc
Mark Shinwell
shinwell@codesourcery.com
Sun Nov 12 17:55:00 GMT 2006
TabonyEE@austin.rr.com wrote:
> 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?
That's right. Presumably something else is wrong, then :-)
Mark
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