[PATCH 2/3] Enable Intel CLDEMOTE instructions.

Tsimbalist, Igor V igor.v.tsimbalist@intel.com
Mon Apr 16 21:49:00 GMT 2018


> -----Original Message-----
> From: Jan Beulich [mailto:jbeulich@suse.com]
> Sent: Sunday, April 15, 2018 3:30 PM
> To: Tsimbalist, Igor V <igor.v.tsimbalist@intel.com>
> Cc: Lu, Hongjiu <hongjiu.lu@intel.com>; binutils@sourceware.org
> Subject: Re: [PATCH 2/3] Enable Intel CLDEMOTE instructions.
> 
> >>> "Tsimbalist, Igor V" <igor.v.tsimbalist@intel.com> 04/13/18 2:13 PM
> >>>
> >opcode/
> >* i386-dis.c (dis386_twobyte): Add cldemote.
> 
> This is wrong: CLDEMOTE isn't all of 0F 1C, but only 0F 1C /0, and only with
> none of 66, F3, or F2 prefixes. With that corrected, quite a bit of what you
> drop
> from the NOP testcases can and should also be left untouched.

Yes, you are right. The updated patch is attached.

Igor

> Jan

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