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Re: [PATCH for-7.0 v2] target/ppc: do not silence SNaN in xscvspdpn


From: Cédric Le Goater
Subject: Re: [PATCH for-7.0 v2] target/ppc: do not silence SNaN in xscvspdpn
Date: Wed, 15 Dec 2021 21:01:41 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0

On 12/15/21 18:11, Matheus K. Ferst wrote:
On 15/12/2021 13:53, Cédric Le Goater wrote:
On 12/14/21 15:44, matheus.ferst@eldorado.org.br wrote:
From: Matheus Ferst <matheus.ferst@eldorado.org.br>

The non-signalling versions of VSX scalar convert to shorter/longer
precision insns doesn't silence SNaNs in the hardware. To better match
this behavior, use the non-arithmatic conversion of helper_todouble
instead of float32_to_float64. A test is added to prevent future
regressions.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>


Applied to ppc-next.

Thanks,

C.

Hi Cédric,

Alex requested some changes in the test part,

I missed that :/

could you drop this patch for now?

Can we address that as a followup in v7.0 ? We have time for it and I would
also prefer not to resend such a large PR.

Thanks,

C.



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