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Date: Thu, 20 Mar 2014 17:30:00 -0000
Message-ID: <CAMe9rOon2hgm1sibzVHimV=oekB=_6JBXoO55eRszvi68Let9A@mail.gmail.com>
Subject: Re: [PATCH, i386][3/3] Update to match latest AVX512 spec.
From: "H.J. Lu" <hjl.tools@gmail.com>
To: Ilya Tocar <tocarip.intel@gmail.com>
Cc: Binutils <binutils@sourceware.org>
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On Tue, Feb 25, 2014 at 8:53 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Tue, Feb 25, 2014 at 8:24 AM, Ilya Tocar <tocarip.intel@gmail.com> wrote:
>>> >>> vcvtps2ph supports memory destination.  Please add AVX512F testcases
>>> >>> with memory destination.
>>> >>>
>>> >> We already have such tests. See e. g. on lines 6883-6890 in
>>> >> gas/testsuite/gas/i386/avx512f.s we have:
>>> >>
>>> >>         vcvtps2ph       $0xab, %zmm6, (%ecx)     # AVX512F
>>> >>         vcvtps2ph       $0xab, %zmm6, (%ecx){%k7}        # AVX512F
>>> >>         vcvtps2ph       $123, %zmm6, (%ecx)      # AVX512F
>>> >>         vcvtps2ph       $123, %zmm6, -123456(%esp,%esi,8)        # AVX512F
>>> >>         vcvtps2ph       $123, %zmm6, 4064(%edx)  # AVX512F Disp8
>>> >>         vcvtps2ph       $123, %zmm6, 4096(%edx)  # AVX512F
>>> >>         vcvtps2ph       $123, %zmm6, -4096(%edx)         # AVX512F Disp8
>>> >>
>>> >> Do we need additional tests?
>>> >
>>> > Yes, please test with memory destination for:
>>> >
>>> > vcvtps2ph, 3, 0x661D, None, 1, CpuAVX512F,
>>> > Modrm|EVex=1|Masking=2|VexOpcode=2|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SAE,
>>> > { Imm8, Imm8, RegZMM|RegMem }
>> This variant is removed in my patch. What exactly should I test?
>>>
>>> Also for
>>>
>>> vcvtps2ph, 4, 0x661D, None, 1, CpuAVX512F,
>>> Modrm|EVex=1|Masking=3|VexOpcode=2|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SAE,
>>> { Imm8, Imm8, RegZMM, RegYMM|RegMem }
>> This is reg-reg version with SAE, which is already tested on e. g.
>> line 2602 in gas/testsuite/gas/i386/avx512f.s:
>>
>>         vcvtps2ph       $0xab, {sae}, %zmm5, %ymm6{%k7}  # AVX512F
>>
>> Also instruction can't have memory operand and SAE at the same time.
>
> OK.  I checked it in for you.
>

I backported it to binutils-2_24-branch.

-- 
H.J.