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In-Reply-To: <fad30d81-8d56-d528-fe70-ab207575038b@suse.com>
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Tue, 11 Feb 2020 11:53:00 -0000
Message-ID: <CAMe9rOo+T7vephVhjFkQtP-2o+67nu3=5d0e17cS-B+TRc0t=g@mail.gmail.com>
Subject: Re: [PATCH v5 5/5] x86-64: Intel64 adjustments for insns dealing with far pointers
To: Jan Beulich <jbeulich@suse.com>
Cc: "binutils@sourceware.org" <binutils@sourceware.org>
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On Tue, Feb 11, 2020 at 2:26 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-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.