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[PATCH] x86: Accept Intel64 only instruction by default

H.J. Lu hjl.tools@gmail.com
Mon Feb 10 16:36:00 GMT 2020 
On Mon, Feb 10, 2020 at 1:03 AM Jan Beulich <jbeulich@suse.com> wrote:
>
> On 07.02.2020 21:34, H.J. Lu wrote:
> > --- a/opcodes/i386-opc.h
> > +++ b/opcodes/i386-opc.h
> > @@ -638,10 +638,16 @@ enum
> >    ATTSyntax,
> >    /* Intel syntax.  */
> >    IntelSyntax,
> > -  /* AMD64.  */
> > -  AMD64,
> > -  /* Intel64.  */
> > -  Intel64,
> > +  /* ISA64:
> > +     0: Common to AMD64 and Intel64.
> > +     1: AMD64.
> > +     2: Intel64.
> > +     3: Only in Intel64.
> > +   */
> > +#define AMD64                1
> > +#define INTEL64              2
> > +#define INTEL64ONLY  3
> > +  ISA64,
>
> I think the comment should warn that the order here cannot be
> changed without other code adjustments.

Done.

> > --- a/opcodes/i386-opc.tbl
> > +++ b/opcodes/i386-opc.tbl
> > @@ -82,6 +82,10 @@
> >  #define EVexLIG EVex=EVEXLIG
> >  #define EVexDYN EVex=EVEXDYN
> >
> > +#define Amd64                ISA64=AMD64
> > +#define Intel64              ISA64=INTEL64
> > +#define Intel64Only  ISA64=INTEL64ONLY
> > +
> >  // The EVEX purpose of StaticRounding appears only together with SAE. Re-use
> >  // the bit to mark commutative VEX encodings where swapping the source
> >  // operands may allow to switch from 3-byte to 2-byte VEX encoding.
>
> Would you mind moving the addition up, at least ahead of all the VEX-/
> EVEX-related #define-s?
>

Done.

This is what I am checking into master.  I will backport it to
binutils 2.34 branch.

Thanks.

-- 
H.J.
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