From: "H.J. Lu" <hjl.tools@gmail.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: binutils@sourceware.org
Subject: Re: [PATCH] x86: don't allow invalid operand combinations for VGATHER
Date: Mon, 30 Jul 2012 16:10:00 -0000 [thread overview]
Message-ID: <CAMe9rOohHAP2sk2PuMFspXtHCmda4WQoJzpbRf1iUau+7sR5XQ@mail.gmail.com> (raw)
In-Reply-To: <500ECADF0200007800090386@nat28.tlf.novell.com>
On Tue, Jul 24, 2012 at 7:18 AM, Jan Beulich <JBeulich@suse.com> wrote:
> The VGATHER group of instructions requires that all three involved
> xmm/ymm registers are distinct. This patch adds code to check for this,
> and at once eliminates a superfluous check for not using PC-relative
> addressing for these instructions (the fact that an index register is
> required here already excludes valid PC-relative addresses).
>
The assembler should only check the operands which can't be
encoded. It should shouldn't check if operands are functional
correct. However, I don't mind to issue an error which is controlled
by a command line option.
Thanks.
--
H.J.
next prev parent reply other threads:[~2012-07-30 16:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-24 14:19 Jan Beulich
2012-07-30 16:10 ` H.J. Lu [this message]
2012-07-31 7:49 ` Jan Beulich
2012-07-31 15:44 ` H.J. Lu
2012-07-31 16:24 ` Jan Beulich
2012-08-07 10:32 ` [PATCH, v2] gas/x86: " Jan Beulich
2012-08-07 13:25 ` H.J. Lu
2012-08-07 13:44 ` Jan Beulich
2012-08-07 14:07 ` H.J. Lu
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