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Re: [qemu-s390x] [Qemu-devel] [PATCH] include/fpu/softfloat: Fix compila

From: Emilio G. Cota
Subject: Re: [qemu-s390x] [Qemu-devel] [PATCH] include/fpu/softfloat: Fix compilation with Clang on s390x
Date: Tue, 15 Jan 2019 15:05:27 -0500
User-agent: Mutt/1.9.4 (2018-02-28)

On Tue, Jan 15, 2019 at 16:01:32 +0000, Alex Bennée wrote:
> Ahh I should have mentioned we already have the technology for this ;-)
> If you build the fpu/next tree on a s390x you can then run:
>   ./tests/fp/fp-bench f64_div
> with and without the CONFIG_128 path. To get an idea of the real world
> impact you can compile a foreign binary and run it on a s390x system
> with:
>   $QEMU ./tests/fp/fp-bench f64_div -t host
> And that will give you the peak performance assuming your program is
> doing nothing but f64_div operations. If the two QEMU's are basically in
> the same ballpark then it doesn't make enough difference. That said:

I think you mean here `tests/fp/fp-bench -o div -p double', otherwise
you'll get the default op (-o add).



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