From: Richard Earnshaw <rearnsha@arm.com>
To: Alex Velenko <Alex.Velenko@arm.com>
Cc: "pinskia@gmail.com" <pinskia@gmail.com>,
James Greenhalgh <James.Greenhalgh@arm.com>,
Marcus Shawcroft <Marcus.Shawcroft@arm.com>,
GCC Patches <gcc-patches@gcc.gnu.org>,
Tejas Belagod <Tejas.Belagod@arm.com>
Subject: Re: [Patch AArch64] Implement Vector Permute Support
Date: Fri, 17 Jan 2014 15:55:00 -0000 [thread overview]
Message-ID: <52D95278.9080408@arm.com> (raw)
In-Reply-To: <52D7F00D.1030206@arm.com>
On 16/01/14 14:43, Alex Velenko wrote:
> On 14/01/14 15:51, pinskia@gmail.com wrote:
>>
>>
>>> On Jan 14, 2014, at 7:19 AM, Alex Velenko <Alex.Velenko@arm.com> wrote:
>>>
>>> Hi,
>>>
>>> This patch turns off the vec_perm patterns for aarch64_be, this should resolve
>>> the issue highlighted here http://gcc.gnu.org/ml/gcc-patches/2014-01/msg00321.html
>>> With this patch applied, the test case provided in that link compiles without an ICE.
>>>
>>> However, the Big-Endian port is still in development. This patch exposes
>>> another known but unrelated issue with Big-Endian Large-Int modes.
>>>
>>> The patch has been tested on aarch64-none-elf and aarch64_be-none-elf resulting in five
>>> further regression due to the broken implementation of Big-Endian Large-Int modes.
>>>
>>> Kind regards,
>>> Alex Velenko
>>>
>>> gcc/
>>>
>>> 2014-01-14 Alex Velenko <Alex.Velenko@arm.com>
>>>
>>> * config/aarch64/aarch64-simd.md (vec_perm<mode>): Add BE check.
>>> * config/aarch64/aarch64.c (aarch64_expand_vec_perm): Add comment.
>>>
>>> gcc/testsuite/
>>>
>>> 2014-01-14 Alex Velenko <Alex.Velenko@arm.com>
>>>
>>> * lib/target-supports.exp
>>> (check_effective_target_vect_perm): Exclude aarch64_be.
>>> (check_effective_target_vect_perm_byte): Likewise.
>>> (check_effective_target_vect_perm_short): Likewise.
>>
>> I think you want to use a function to check if the target is effectively big-endian instead. Internally at Cavium, our elf compiler has big-endian multi-lib.
>>
>> Thanks,
>> Andrew
>>
>>>
>>> <vec-perm.patch>
>>
>
> Hi,
> Here is a vec-perm patch with changes proposed previously.
> Little and Big-Endian tested with no additional issues appearing.
>
> Kind regards,
> Alex
>
> gcc/
>
> 2014-01-16 Alex Velenko <Alex.Velenko@arm.com>
>
> * config/aarch64/aarch64-simd.md (vec_perm<mode>): Add BE check.
> * config/aarch64/aarch64.c (aarch64_expand_vec_perm): Add comment.
>
> gcc/testsuite/
>
> 2014-01-16 Alex Velenko <Alex.Velenko@arm.com>
>
> * lib/target-supports.exp
> (check_effective_target_vect_perm): Exclude aarch64_be.
> (check_effective_target_vect_perm_byte): Likewise.
> (check_effective_target_vect_perm_short): Likewise.
>
The patch is missing the hunk for aarch64.c.
next prev parent reply other threads:[~2014-01-17 15:55 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-04 10:31 James Greenhalgh
2012-12-04 10:36 ` [Patch AArch64] Add zip{1, 2}, uzp{1, 2}, trn{1, 2} support for vector permute James Greenhalgh
2012-12-04 22:45 ` Marcus Shawcroft
2012-12-04 22:44 ` [Patch AArch64] Implement Vector Permute Support Marcus Shawcroft
2012-12-06 16:25 ` James Greenhalgh
2014-01-07 23:10 ` Andrew Pinski
[not found] ` <72A61951-68B2-4776-A2B8-05DC4E1F53A7@arm.com>
2014-01-08 0:10 ` Andrew Pinski
2014-01-08 11:00 ` James Greenhalgh
2014-01-14 15:19 ` Alex Velenko
2014-01-14 15:51 ` pinskia
2014-01-16 14:43 ` Alex Velenko
2014-01-17 15:55 ` Richard Earnshaw [this message]
2014-01-20 11:15 ` Alex Velenko
2014-01-20 11:17 ` Richard Earnshaw
2014-01-20 17:33 ` Alex Velenko
2014-01-20 18:36 ` Marcus Shawcroft
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