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Unintentional use of x87 #17

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gaul opened this issue Oct 17, 2021 · 0 comments
Open

Unintentional use of x87 #17

gaul opened this issue Oct 17, 2021 · 0 comments

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@gaul
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gaul commented Oct 17, 2021

This is speculative, but I have noticed unexpected use of x87 floating-point on x86-64 where I assumed that SSE would be more efficient since few programs take advantage of 80-bit precision. Also I wonder if there is an overhead for task-switching the additional registers or power usage for using these legacy instructions?
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