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Re: PR 4579: 3DNow optimization failure
- From: "John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>
- To: gcc-patches at gcc dot gnu dot org
- Cc: rodrigc at mediaone dot net
- Date: Sat, 1 Dec 2001 18:47:05 -0500 (EST)
- Subject: Re: PR 4579: 3DNow optimization failure
> 2001-12-01 Craig Rodrigues <rodrigc@gcc.gnu.org>
>
> PR optimization/4579
> * simplify-rtx.c (simplify_gen_subreg): Replace abort()
> statments with return NULL_RTX.
Your patch doesn't appear to address the root cause of the problem
(i.e., that mode information is being correctly passed to simplify_gen_subreg
in all cases. There is some discussion of this in this thread:
<http://gcc.gnu.org/ml/gcc/2001-11/msg01362.html>.
Dave
--
J. David Anglin dave.anglin@nrc.ca
National Research Council of Canada (613) 990-0752 (FAX: 952-6605)