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Re: GCC trunk SPEC2000 performance
- From: law at redhat dot com
- To: David Edelsohn <dje at watson dot ibm dot com>
- Cc: Andreas Jaeger <aj at suse dot de>, Jan Hubicka <jh at suse dot cz>, Diego Novillo <dnovillo at redhat dot com>, Mark Mitchell <mark at codesourcery dot com>, gcc at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
- Date: Thu, 20 Jun 2002 14:30:25 -0600
- Subject: Re: GCC trunk SPEC2000 performance
- Reply-to: law at redhat dot com
In message <200206202001.QAA26566@makai.watson.ibm.com>, David Edelsohn writes:
> >>>>> law writes:
>
> Jeff> Unknown as Jan sent a patch without a description of the underlying pr
> oblem.
>
> Please re-read the discussion if you missed the purpose of the
> patch.
I didn't recall seeing any discussion of a technical nature. It's certainly
possible I missed it though.
>
> apsi.f: In subroutine `uvset':
> apsi.f:4327: internal compiler error: RTL flag check: REG_POINTER used with
> unexpected rtx code `mem' in copy_rtx_and_substitute, at integrate.c:2065
>
> Jan's patch ensures that REG_POINTER() only is called with a REG
> rtx. If the rtx is not a REG, the rest of the conditional does not make
> sense, so it seems like a reasonable fix.
But how/why did we have a non-REG thingie in the register replacement array?
That's key to knowing if Jan's patch is correct or just papering over a problem
elsewhere.
jeff