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Use top_set_bit to optimize hash(Real) #49986

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Merged
merged 1 commit into from
May 29, 2023
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Use top_set_bit to optimize hash(Real) #49986

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2 changes: 1 addition & 1 deletion base/float.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -687,7 +687,7 @@ function hash(x::Real, h::UInt)

# handle values representable as Int64, UInt64, Float64
if den == 1
left = ndigits0z(num,2) + pow
left = top_set_bit(num) + pow
right = trailing_zeros(num) + pow
if -1074 <= right
if 0 <= right && left <= 64
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