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Re: Don't let gen_lowpart generate SUBREGs with word -1.

To: Alexandre Oliva <aoliva at redhat dot com>
Subject: Re: Don't let gen_lowpart generate SUBREGs with word -1.
From: Richard Henderson <rth at redhat dot com>
Date: Thu, 23 Nov 2000 02:10:46 -0800
Cc: gcc-patches at gcc dot gnu dot org
References: <orem033db5.fsf@guarana.lsd.ic.unicamp.br> <20001122155454.H20304@redhat.com> <or7l5v1leo.fsf@guarana.lsd.ic.unicamp.br> <or3dgjvw6j.fsf@guarana.lsd.ic.unicamp.br>

On Thu, Nov 23, 2000 at 08:07:16AM -0200, Alexandre Oliva wrote:
> Here's the new patch, bootstrapped on i686-pc-linux-gnu.  Ok to
> install?

I'd have been happier with it being tested on a big-endian
machine, but I can't really imagine it failing either.

> 	* emit-rtl.c (gen_lowpart_common): Use word 0 if register mode
> 	is narrower than requested mode.
> 	(gen_highpart): Abort if register mode is narrower than
> 	requested mode.

Ok.


r~

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  - From: Alexandre Oliva
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