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Re: [PATCH v1 00/20] s390x/tcg: Implement Vector enhancements facility a
From: |
Richard Henderson |
Subject: |
Re: [PATCH v1 00/20] s390x/tcg: Implement Vector enhancements facility and switch to z14 |
Date: |
Thu, 1 Oct 2020 10:07:24 -0500 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 9/30/20 9:55 AM, David Hildenbrand wrote:
> This series adds support for the "Vector enhancements facility" and bumps
> the qemu CPU model tp to a stripped-down z14.
>
> I yet have to find a way to get more test coverage - looks like some of
> the functions aren't used anywhere yet (e.g., VECTOR FP MAXIMUM), writing
> unit tests to cover all functions and cases is just nasty. But I might be
> wrong - I'm planning to at least test basic functionality of all new added
> instructions.
This is where RISU can be helpful. Auto-generate 100k random variations,
record known good results on hardware, verify that replay on qemu produces the
same results.
r~
- Re: [PATCH v1 00/20] s390x/tcg: Implement Vector enhancements facility and switch to z14,
Richard Henderson <=