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Re: movsi on a 16 bit machine

From: Florent Defay <spira dot inhabitant at gmail dot com>
To: Ian Lance Taylor <iant at google dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Fri, 24 Jul 2009 11:16:15 +0200
Subject: Re: movsi on a 16 bit machine
References: <8502af3c0907200633o4c986c00td404448043c353a4@mail.gmail.com> <m363dni4k5.fsf@google.com>

>
> You need to make your split a little more complicated so that when the
> registers overlap, it generates
> ? ?move 6(R0),R1
> ? ?move 4(R0),R0
> A define_insn_and_split is permitted to generate the actual instructions
> to use followed by DONE, just as in define_expand.
>

Alright. I did it. It works.

Thank you.


Florent

References:
- movsi on a 16 bit machine
  - From: Florent Defay
- Re: movsi on a 16 bit machine
  - From: Ian Lance Taylor

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