From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeffrey A Law <law@cygnus.com>
To: hjl@lucon.org (H.J. Lu)
Cc: wilson@cygnus.com (Jim Wilson), scox@cygnus.com, crux@pool.informatik.rwth-aachen.de, egcs@cygnus.com
Subject: Re: More fp bug in egcs 
Date: Mon, 04 May 1998 18:07:00 -0000
Message-id: <11888.894315233@hurl.cygnus.com>
References: <m0yWMtF-000268C@ocean.lucon.org>
X-SW-Source: 1998-05/msg00102.html

  In message < m0yWMtF-000268C@ocean.lucon.org >you write:
  > > 
  > > One reason for keeping output reloads, even though the register is dead, 
  > is
  > > for debugging purposes.  With your patch, it looks like debugging of 
  > > unoptimized code would not work right.  It would be OK to do this
  > > when optimizing, but that would not fix the x86 bug.
  > > 
  > 
  > If the register is clobbered, isn't the value in it random? If it is
  > tru, how can it help debugging? I changed my patch to omit the output
  > reload if it is in the source and is clobbered. Does it look safe?
>From the compiler's standpoint it is clobbered.

However, the value in the clobbered register might have meaning to
the user that is debugging code.

jeff