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Re: fix loop unrolling

From: Jan Hubicka <jh at suse dot cz>
To: Richard Henderson <rth at redhat dot com>
Cc: Jan Hubicka <jh at suse dot cz>, gcc-patches at gcc dot gnu dot org, gcc-pdo at atrey dot karlin dot mff dot cuni dot cz
Date: Tue, 22 Jan 2002 12:04:34 +0100
Subject: Re: fix loop unrolling
References: <20020121165759.GG25957@atrey.karlin.mff.cuni.cz> <20020121150426.C19469@redhat.com>

> On Mon, Jan 21, 2002 at 05:57:59PM +0100, Jan Hubicka wrote:
> > 	* unroll.c (unroll_loop): Lower final_value to generic-operand.
> 
> Actually, I wonder if this should be lowered to nonmemory_operand.
> Note the one copy_rtx(final_value) later on in the function which
> is not propagated everywhere.

I think it should not use memory, as it consists of loop invariants
and memories has been elliminated there earlier.
It consists of addition of two thinks fetched directly from insn chain,
so they should be nonmemory_operand already.

Would be that ok with adding copy_rtx everywhere?

Honza
> 
> 
> r~

Follow-Ups:
- Re: fix loop unrolling
  - From: Richard Henderson

References:
- fix loop unrolling
  - From: Jan Hubicka
- Re: fix loop unrolling
  - From: Richard Henderson

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