From: "Jan Beulich" <JBeulich@suse.com>
To: "H.J. Lu" <hjl.tools@gmail.com>,
"Michael Zolotukhin" <michael.v.zolotukhin@gmail.com>
Cc: "Binutils" <binutils@sourceware.org>
Subject: Re: [PATCH] PR gas/16488: Add test for incorrect memory operand for gather/scatter instructions.
Date: Fri, 31 Jan 2014 14:58:00 -0000 [thread overview]
Message-ID: <52EBC83302000078001186A1@nat28.tlf.novell.com> (raw)
In-Reply-To: <CANtU079oJ6oPsQkjn7i4YWuXTcALVYe_WKvDYyMouXePbMOsQw@mail.gmail.com>
>>> On 31.01.14 at 15:38, Michael Zolotukhin <michael.v.zolotukhin@gmail.com> wrote:
>> You added 2 tests for AT&T syntax, but only 1 for
>> Intel syntax. Any particular reason for this?
> Yes, the following test doesn't give an error:
> vgatherqpd zmm6{k1}, ZMMWORD PTR [zmm3]
> I think it's because it is equivalent to something like vgatherqpd
> (,%zmm2,),%zmm6{%k1} (please note commas around zmm2), which also
> doesn't lead to an error. I assume that in Intel syntax this test is
> regarded as a rich addressing mode, which is acceptable for
> gather/scatters. However, I'm not sure about this - please correct me
> if I'm wrong.
That's correct - the order of registers in a memory address can
get swapped if that results in a valid address.
Jan
next prev parent reply other threads:[~2014-01-31 14:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-31 10:10 Michael V. Zolotukhin
2014-01-31 14:05 ` H.J. Lu
2014-01-31 14:38 ` Michael Zolotukhin
2014-01-31 14:53 ` H.J. Lu
2014-01-31 14:55 ` Michael Zolotukhin
2014-01-31 14:58 ` Jan Beulich [this message]
2014-01-31 15:35 ` Michael Zolotukhin
2014-01-31 15:41 ` H.J. Lu
2014-01-31 16:06 ` Michael Zolotukhin
2014-01-31 16:26 ` H.J. Lu
2014-01-31 16:31 ` Michael Zolotukhin
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