From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] SIGILL errors in strncpu (NAT consumption)
Date: Fri, 05 Apr 2002 21:27:36 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590701905395@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590701905358@msgid-missing>
Just to avoid confusing others, I'd like to clarify this point:
>> (1) I don't think it's save to do:
>>
>> chk.s r[MEMLAT], .recovery3
>> mov value = r[MEMLAT]
>>
>> in the same cycle.
This was a brain fart. It is of course legal to do this as there is
no dependency violation (both instructions only read r[MEMLAT]) and
hence the effect of the instructions is as if they had been executed
sequentially. Thanks to Jim Hull for setting me straight.
The rest of the patch should still apply.
--david
prev parent reply other threads:[~2002-04-05 21:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-02 3:11 [Linux-ia64] SIGILL errors in strncpu (NAT consumption) Jack Steiner
2002-04-02 3:46 ` Jack Steiner
2002-04-03 21:29 ` Erich Focht
2002-04-03 21:43 ` Jack Steiner
2002-04-03 22:10 ` David Mosberger
2002-04-04 8:36 ` Francois-Xavier Kowalski
2002-04-04 10:29 ` Hideki Yamamoto
2002-04-04 15:54 ` David Mosberger
2002-04-04 18:44 ` David Mosberger
2002-04-04 19:27 ` Erich Focht
2002-04-04 19:31 ` David Mosberger
2002-04-04 21:26 ` Erich Focht
2002-04-05 3:44 ` Hideki Yamamoto
2002-04-05 21:27 ` David Mosberger [this message]
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