Your Jan 8th, 2001 rtlanal.c:note_stores change

[David S. Miller]

   From: kenner@vlsi1.ultra.nyu.edu (Richard Kenner)
   Date: Mon, 15 Apr 02 16:24:26 EDT
   
   I can't find any record of what bug I was fixing, but I know I got
   an ICE due to having multiple registers in different modes thought
   to be the same value.

Now, Richard, in your gcc-patches posting when this change went in you
say "as discussed all over the lists".  From such a description, it
ought to be easy to find many postings and some involved thread
discussing the topic.  I spent all night looking for such postings
but to no avail.

The fact that no record can be found by anyone so far of any
discussion about your sparc64 problems proportedly fixed by these
changes is very troubling.  I'm actually quite upset about this.
   
If you can't come up with a test case that shows the problem you were
having on sparc64 or at least show us what inside the compiler fails
without the CLOBBER note_stores stuff, I'm going to recommend that the
CLOBBER bits be reverted because they are wrong and I can show a
testcase (gdb/infcmd.i with -mcpu=ultrasparc) that fails due to the
bogus CLOBBERs.