From: "Jan Beulich" <JBeulich@suse.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: <kirill.yukhin@intel.com>,"Binutils" <binutils@sourceware.org>
Subject: Re: [PATCH 3/6] x86/MPX: suppress base/index swapping in Intel mode for bndmk, bndldx, and bndstx
Date: Tue, 08 Oct 2013 15:23:00 -0000 [thread overview]
Message-ID: <52543F7202000078000F9B07@nat28.tlf.novell.com> (raw)
In-Reply-To: <CAMe9rOqDp1_mAdthvC=kJt_71K4b59kBXEAguGNMBKhrw24Upg@mail.gmail.com>
>>> On 08.10.13 at 17:16, "H.J. Lu" <hjl.tools@gmail.com> wrote:
> On Tue, Oct 8, 2013 at 7:42 AM, Jan Beulich <JBeulich@suse.com> wrote:
>> bndmk, bndldx, and bndstx assign special meaning to base and index
>> registers, and hence silently swapping the registers should be
>> suppressed.
>>
>> gas/
>> 2013-10-08 Jan Beulich <jbeulich@suse.com>
>>
>> * tc-i386.c (i386_intel_simplify_register): Suppress base/index
>> swapping for bndmk, bndldx, and bndstx.
>>
>> --- 2013-10-07/gas/config/tc-i386-intel.c
>> +++ 2013-10-07/gas/config/tc-i386-intel.c
>> @@ -291,6 +291,8 @@ i386_intel_simplify_register (expression
>> else if (!intel_state.index)
>> {
>> if (intel_state.in_scale
>> + || current_templates->start->base_opcode == 0xf30f1b /* bndmk */
>> + || (current_templates->start->base_opcode & ~1) == 0x0f1a /* bnd{ld,st}x */
>> || i386_regtab[reg_num].reg_type.bitfield.baseindex)
>> intel_state.index = i386_regtab + reg_num;
>> else
>>
>>
>>
>
> We need a testcase for this.
Which is included in patch 1!
Jan
next prev parent reply other threads:[~2013-10-08 15:23 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-08 14:36 [PATCH 0/6] x86: various MPX fixes Jan Beulich
2013-10-08 14:41 ` [PATCH 1/6] x86/MPX: testsuite adjustments Jan Beulich
2013-10-08 14:41 ` [PATCH 2/6] x86/MPX: fix address size handling Jan Beulich
2013-10-08 15:15 ` H.J. Lu
2013-10-08 15:20 ` Jan Beulich
2013-10-08 15:32 ` H.J. Lu
2013-10-09 7:30 ` Jan Beulich
2013-10-09 15:45 ` H.J. Lu
2013-10-10 12:27 ` Jan Beulich
2013-10-10 15:18 ` H.J. Lu
2013-10-08 14:42 ` [PATCH 3/6] x86/MPX: suppress base/index swapping in Intel mode for bndmk, bndldx, and bndstx Jan Beulich
2013-10-08 15:16 ` H.J. Lu
2013-10-08 15:23 ` Jan Beulich [this message]
2013-10-08 15:34 ` H.J. Lu
2013-10-08 16:00 ` Jan Beulich
2013-10-08 16:19 ` H.J. Lu
2013-10-09 7:15 ` acceptance rules (was: Re: [PATCH 3/6] x86/MPX: suppress base/index swapping ...) Jan Beulich
2013-10-09 16:45 ` H.J. Lu
2013-10-08 14:43 ` [PATCH 4/6] x86/MPX: bndmk, bndldx, and bndstx only allow a memory operand Jan Beulich
2013-10-08 15:28 ` H.J. Lu
2013-10-09 7:24 ` Jan Beulich
2013-10-09 15:17 ` H.J. Lu
2013-10-08 14:43 ` [PATCH 5/6] x86/MPX: fix operand size handling Jan Beulich
2013-10-08 15:45 ` H.J. Lu
2013-10-09 7:36 ` Jan Beulich
2013-10-09 15:51 ` H.J. Lu
2013-10-10 13:14 ` Jan Beulich
2013-10-10 15:14 ` H.J. Lu
2013-10-12 15:58 ` H.J. Lu
2013-10-12 17:12 ` H.J. Lu
2013-10-08 14:44 ` [PATCH 6/6] x86/MPX: bndmk, bndldx, and bndstx don't allow RIP-relative addressing Jan Beulich
2013-10-08 16:13 ` H.J. Lu
2013-10-09 7:40 ` Jan Beulich
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