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Re: [Qemu-devel] [PATCH v6 13/13] hardfloat: implement float32/64 compar
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] [PATCH v6 13/13] hardfloat: implement float32/64 comparison |
Date: |
Wed, 05 Dec 2018 12:36:33 +0000 |
User-agent: |
mu4e 1.1.0; emacs 26.1.90 |
Emilio G. Cota <address@hidden> writes:
> Performance results for fp-bench:
>
> Host: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
> - before:
> cmp-single: 110.98 MFlops
> cmp-double: 107.12 MFlops
> - after:
> cmp-single: 506.28 MFlops
> cmp-double: 524.77 MFlops
>
> Note that flattening both eq and eq_signaling versions
> would give us extra performance (695v506, 615v524 Mflops
> for single/double, respectively) but this would emit two
> essentially identical functions for each eq/signaling pair,
> which is a waste.
Reviewed-by: Alex Bennée <address@hidden>
--
Alex Bennée
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