From: "Kewen.Lin" <linkw@linux.ibm.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>,
Bill Schmidt <wschmidt@linux.ibm.com>
Subject: Re: [PATCH 3/3 V2][rs6000] vector conversion RTL pattern update for diff unit size
Date: Fri, 01 Nov 2019 02:21:00 -0000 [thread overview]
Message-ID: <b5c0f8d4-7076-9043-82c9-5162182a1063@linux.ibm.com> (raw)
In-Reply-To: <20191031184859.GX28442@gate.crashing.org>
Hi Segher,
on 2019/11/1 脡脧脦莽2:49, Segher Boessenkool wrote:
> Hi!
>
> On Thu, Oct 31, 2019 at 05:35:22PM +0800, Kewen.Lin wrote:
>>>> +/* Half VMX/VSX vector (for select) */
>>>> +VECTOR_MODE (FLOAT, SF, 2); /* V2SF */
>>>> +VECTOR_MODE (INT, SI, 2); /* V2SI */
>>>
>>> Or "for internal use", in general. What happens if a user tries to create
>>> something of such a mode? I hope we don't ICE :-/
>>
>> I did some testings, it failed (ICE) if we constructed one insn with these
>> modes artificially. But I also checked the existing V8SF/V8SI/V4DF/... etc.,
>> they have same issues. It looks more like a new issue to avoid that.
>
> What does "artificially" mean? If you had to change the compiler for your
> test, that doesn't count; otherwise, please file a PR.
>
Yes, I hacked the compiler to emit it directly. OK, it's fine then. :)
>> * config/rs6000/vsx.md (UNSPEC_VSX_CVSPSXDS, UNSPEC_VSX_CVSPUXDS): Remove.
>
> (line too long)
Will fix it.
>
> Okay for trunk. Thanks!
>
Thanks for your time!
BR,
Kewen
prev parent reply other threads:[~2019-11-01 2:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-23 9:39 [PATCH 0/3][rs6000] Update RTL patterns for vector conversion Kewen.Lin
2019-10-23 9:40 ` [PATCH 1/3][rs6000] Replace vsx_xvcdpsp by vsx_xvcvdpsp Kewen.Lin
2019-10-30 18:02 ` Segher Boessenkool
2019-10-23 9:42 ` [PATCH 2/3][rs6000] vector conversion RTL pattern update for same unit size Kewen.Lin
2019-10-30 18:04 ` Segher Boessenkool
2019-10-23 10:15 ` [PATCH 3/3][rs6000] vector conversion RTL pattern update for diff " Kewen.Lin
2019-10-30 19:06 ` Segher Boessenkool
2019-10-31 9:35 ` [PATCH 3/3 V2][rs6000] " Kewen.Lin
2019-10-31 18:54 ` Segher Boessenkool
2019-11-01 2:21 ` Kewen.Lin [this message]
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