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Re: testcase for hppa64 gcc bug
- To: Alan Modra <alan at linuxcare dot com dot au>
- Subject: Re: testcase for hppa64 gcc bug
- From: Jeffrey A Law <law at redhat dot com>
- Date: Wed, 31 Jan 2001 18:19:17 -0700
- cc: John David Anglin <dave at hiauly1 dot hia dot nrc dot ca>, gcc-bugs at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org, parisc-linux at thepuffingroup dot com
- Reply-To: law at redhat dot com
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