This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Eliminable register breakage
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Subject: Re: Eliminable register breakage
- From: Bernd Schmidt <bernds at redhat dot com>
- Date: Sun, 3 Jun 2001 22:56:07 +0100 (BST)
- cc: <gcc at gcc dot gnu dot org>
On Sun, 3 Jun 2001, Richard Kenner wrote:
> I believe it's probably supposed to reload the PLUS. Maybe it's been
> broken by the subreg_byte patches.
>
> Well the PLUS isn't an operand, the SUBREG is.
Shouldn't matter, I think. Have a look at the code around
/* Force reload if this is a constant or PLUS or if there may
be a problem accessing OPERAND in the outer mode. */
in find_reloads, which seems to try and detect this situation.
Bernd