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Re: i386.md fix
- To: Jan Hubicka <jh at suse dot cz>
- Subject: Re: i386.md fix
- From: Joern Rennecke <amylaar at cygnus dot co dot uk>
- Date: Wed, 21 Jun 2000 17:13:35 +0100 (BST)
- CC: gcc at gcc dot gnu dot org
> This is patch to remove addqi_low_1 pattern from i386.md. I am not quite
> sure, why it has been added (no splitters seems to result to it), but it
> causes problems with reload, since in/out operand is matched with input
> one making them impossible to reload properly. In case we want gcc to be able
> to generate such an "partial" arithmetic, this would require more work in
> combine, different representation and to add rest of arithmetic patterns of
> that form.
Have you tried to change the '+' into an '=' ?