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To: Alan Modra <alan@linuxcare.com.au>
Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
	gcc-bugs@gcc.gnu.org, gcc-patches@gcc.gnu.org,
	parisc-linux@thepuffingroup.com
Reply-To: law@redhat.com
In-reply-to: Your message of Wed, 06 Dec 2000 16:28:27 +1100.
             <Pine.LNX.4.21.0012061607530.16721-100000@front.linuxcare.com.au>
From: Jeffrey A Law <law@redhat.com>
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Date: Wed, 31 Jan 2001 18:19:17 -0700
Message-ID: <31628.980990357@slagheap.cygnus.com>
Sender: law@cygnus.com
Subject: [parisc-linux] Re: testcase for hppa64 gcc bug
List-ID: <linux-parisc.vger.kernel.org>

  In message <Pine.LNX.4.21.0012061607530.16721-100000@front.linuxcare.com.au>y
ou write:
  > > I think this needs to be reexamined.  Allan's ARG_POINTER_INVARIANT patch
  > > might not be needed now.
  > 
  > It's still needed.  The problem is that gcc thinks the arg pointer is
  > unchanged from the entry value to a function, even when the arg pointer
  > needs to be set to call other functions.
But the incoming argument pointer should have been copied into a pseudo at
the start of the function and the new pseudo used to address incoming args.

That's the real problem here I think.

jeff