other/4520: cselib.c hash_rtx incorrectly hashes based on rtx address

[David Edelsohn]

The following reply was made to PR other/4520; it has been noted by GNATS.

From: David Edelsohn <dje@watson.ibm.com>
To: bangerth@dealii.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,
   john@feith.com, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc: Geoff Keating <geoffk@geoffk.org>
Subject: Re: other/4520: cselib.c hash_rtx incorrectly hashes based on rtx address 
Date: Sat, 21 Dec 2002 13:22:13 -0500

 >>>>> bangerth  writes:
 
 Wolfgang> David, you probably have more insight into these things than
 Wolfgang> me, but I know that some of these address-hashing things
 Wolfgang> have been purged. Is this particular report still valid?
     
 	As far as I can tell, the incorrect hashing of addresses of
 LABEL_REFS and SYMBOL_REFS in cselib.c:hash_rtx() has not been corrected.
 The failure is dormant, but I am not sure how it affects PCH restore
 state. 
 
 David