On Fri, Mar 3, 2017 at 12:30 PM, Jakub Jelinek <ja...@redhat.com> wrote:

>> Regarding the implementation, I'd rather see another flag for
>> i386-builtin.def entries, where we can mark if matching memory operand
>> is allowed. The expander can then look at the flag, and do some
>> special magic.
>
> I think maintaining such a flag would be a nightmare, I think more insns
> will need it in the future and it will be hard to remember.  Maybe it is 
> better
> not to do anything about those (i.e. apply my patch as is), after all -O0
> is not optimized code.

Yes, I agree.

Uros.

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