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Re: [Qemu-devel] [PATCH v3 0/6] target-arm: Fix Neon shift instructions.
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH v3 0/6] target-arm: Fix Neon shift instructions. |
Date: |
Mon, 14 Feb 2011 18:18:48 +0000 |
On 11 February 2011 15:10, <address@hidden> wrote:
> From: Christophe Lyon <address@hidden>
>
> This patch series provides fixes such that ARM Neon instructions
> VRSHR, VRSRA, VQRSHRN, VQRSHRUN, VRSHRN, VQSHRN, VSHRN, VQSHRUN now
> pass all my tests.
>
> I have reworked all these patches and I hope they are now easier to
> review.
Thanks; this was indeed a lot easier to review. Mostly
this is OK, there are a few things:
* minor style issues
* handling of very large shift counts is not right
(both in code you wrote and existing routines)
* the shift-and-narrow loop doesn't handle the case
where pass 1 reads registers pass 0 writes
I have patches which (sitting on top of your 6) fix all
these and give a clean pass on the random instruction
set testing for the shift instructions.
Unless you object, I think the simplest thing will be for
me to just fix the minor nits I identified in your patches
and then post a combined series of your patches and
mine.
-- PMM
- [Qemu-devel] [PATCH 1/6] target-arm: Fix rounding constant addition for Neon shift instructions., (continued)