Re: [PATCH v1 00/20] s390x/tcg: Implement Vector enhancements facility and switch to z14

[Richard Henderson]

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~