Re: [PATCH v6 1/5] x86-64: Intel64 adjustments for insns dealing with far pointers

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Wed, Feb 12, 2020 at 2:05 AM Jan Beulich <jbeulich@suse.com> wrote:
>
> AMD and Intel differ in their handling of far indirect branches as well
> as LFS/LGS/LSS: AMD CPUs ignore REX.W while Intel ones honors it. (Note
> how the latter three were hybrids so far, while far branches were fully
> AMD-like.)
>
> gas/
> 2020-02-XX  Jan Beulich  <jbeulich@suse.com>
>
>         PR gas/24546
>         * config/tc-i386.c (match_template): Apply AMD64 check to 64-bit
>         code only.
>         * config/tc-i386-intel.c (i386_intel_operand): Also handle
>         CALL/JMP in O_tbyte_ptr case.
>         * doc/c-i386.texi: Mention far call and full pointer load ISA
>         differences.
>         * testsuite/gas/i386/x86-64-branch-3.s,
>         testsuite/gas/i386/x86-64-intel64.s: Add 64-bit far call cases.
>         * testsuite/gas/i386/x86-64-branch-3.d,
>         testsuite/gas/i386/x86-64-intel64.d: Adjust expectations.
>         * testsuite/gas/i386/x86-64-branch-5.l,
>         testsuite/gas/i386/x86-64-branch-5.s: New.
>         * testsuite/gas/i386/i386.exp: Run new test.
>
> opcodes/
> 2020-02-XX  Jan Beulich  <jbeulich@suse.com>
>
>         PR gas/24546
>         * i386-dis.c (putop): Handle REX.W in '^' case for Intel64 mode.
>         * i386-opc.tbl (lfs, lgs, lss, lcall, ljmp): Split into
>         Amd64 and Intel64 templates.
>         (call, jmp): Likewise for far indirect variants. Dro
>         Unspecified.
>         * i386-tbl.h: Re-generate.

OK.

Thanks.

-- 
H.J.