Your change of September 11, 1998

[Bernd Schmidt]

On Tue, 16 Jan 2001, Richard Henderson wrote:

> On Tue, Jan 16, 2001 at 06:59:23AM -0500, Richard Kenner wrote:
> > It indicates which registers are live after the return and that is
> > useful information, which means we have to get it right.
>
> Useful, yes.  Essential?  Maybe yes, maybe no, depending on reorg.
> There are two questions before us: (1) what to do for gcc 3.0, and
> (2) what to do longer term.
>
> Long term I wouldn't mind seeing us use an extra-insn-pattern list
> like we do for function arguments.

I don't think this is a good idea.  Look at what happens for
CALL_INSN_FUNCTION_USAGE: every pass needs to handle it specially,
when it could just be represented directly in the rtl.  Why introduce
more special cases?


Bernd