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Re: [Qemu-devel] [PATCH v2 00/10] tcg vector improvements


From: BALATON Zoltan
Subject: Re: [Qemu-devel] [PATCH v2 00/10] tcg vector improvements
Date: Wed, 6 Feb 2019 16:44:19 +0100 (CET)
User-agent: Alpine 2.21.9999 (BSF 287 2018-06-16)

On Wed, 6 Feb 2019, Mark Cave-Ayland wrote:
Howard has also pointed out that he's still spotted some corruption in his 
tests, so
I will do a bit more investigation and report back.

I wonder if instead of "visually testing" shouldn't it be verified by some more exact tests? Could any of these be useful:

https://gcc.gnu.org/ml/gcc-patches/2002-11/msg01391.html
https://gcc.gnu.org/git/?p=gcc.git;a=tree;f=gcc/testsuite/gcc.dg/vmx;h=4765c35dabb4e3891c98084af077c2549fb45dfc;hb=HEAD
https://github.com/llvm-mirror/test-suite/tree/master/SingleSource/UnitTests/Vector/Altivec

or there could be other similar ones around that already have test cases for these instructions that could provide some more confidence in the correctness of the implementation.

Regards,
BALATON Zoltan



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