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Fix _mm_cmpeq_epi64 #48

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jserv opened this issue Jun 26, 2020 · 2 comments
Closed

Fix _mm_cmpeq_epi64 #48

jserv opened this issue Jun 26, 2020 · 2 comments

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@jserv
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jserv commented Jun 26, 2020

Quote from Jukka Liimatta

Looking at _mm_cmpeq_epi64 compares 32 bits at a time, which means lo and hi might have different mask. 64 bit compare should always have all bits 0 or 1. If this mask is used for select the results will be interesting.

Source: https://twitter.com/JukkaLiimatta/status/1276539769619714051
@marktwtn
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marktwtn commented Jul 3, 2020

Our _mm_comeq_epi64 of the ARM 32-bit implementation does not have the problem.
The result is taken care well.

@marktwtn
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marktwtn commented Jul 4, 2020

@jserv shall we close this issue?

@jserv jserv closed this as completed Jul 4, 2020
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@jserv @marktwtn