[LLVMdev] New backend help request.

Renato Golin renato.golin at linaro.org
Thu Jul 9 06:25:58 PDT 2015


On 9 July 2015 at 13:00, James Boulton <eiconic at googlemail.com> wrote:
> What about things like pre_store and post_store, though? If there was a pre_load and post_load this would largely solve the problem. Of course there are a wealth of addressing modes for the 68k, but they should be able to be dealt with like this I think?

We do have write-back addressing modes in ARM, but IIRC, that's
encoded in the instruction, not as a pattern. Ie. it won't generate
(or collapse) additional write-back instructions, just choose the one
that does write-back.

--renato



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