more direct mask_none all-bits-zeroes check
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25faa71995
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@ -206,6 +206,7 @@ if_inline (hasarch{'X86_64'}) {
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include './avx'
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include './avx2'
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include './avx512'
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def any_bit{x:[_]_} = ~and_bit_none{x, x}
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} else if_inline (hasarch{'AARCH64'}) {
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include 'arch/neon_intrin/basic'
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include 'arch/neon_intrin/select'
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@ -28,7 +28,7 @@ def anyne_positive{x:V=[_]_, y:V, M if M{0}==1} = {
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}
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def mask_none{x} = x
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def mask_none{x, 'all bits zeroes'} = and_bit_none{x, x}
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def mask_none{x, 'all bits zeroes'} = ~any_bit{x}
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def mask_first{n} = {
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def mask{x:X, 'all bits zeroes'} = and_bit_none{x, X~~mask_of_first_bits{X,n}}
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