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Martin DisibioandGitHub
9aaf851965
* Upgrade parquet-go to latest for StructTag option * Upgrade parquet-go to get latest alloc fix
39 lines
904 B
Go
39 lines
904 B
Go
//go:build !purego
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package bitpack
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import (
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"github.com/parquet-go/bitpack/unsafecast"
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"golang.org/x/sys/cpu"
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)
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//go:noescape
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func unpackInt64Default(dst []int64, src []byte, bitWidth uint)
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//go:noescape
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func unpackInt64x1to32bitsAVX2(dst []int64, src []byte, bitWidth uint)
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//go:noescape
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func unpackInt64x1bitAVX2(dst []int64, src []byte, bitWidth uint)
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//go:noescape
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func unpackInt64x2bitAVX2(dst []int64, src []byte, bitWidth uint)
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//go:noescape
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func unpackInt64x4bitAVX2(dst []int64, src []byte, bitWidth uint)
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//go:noescape
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func unpackInt64x8bitAVX2(dst []int64, src []byte, bitWidth uint)
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func unpackInt64(dst []int64, src []byte, bitWidth uint) {
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hasAVX2 := cpu.X86.HasAVX2
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switch {
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case hasAVX2 && bitWidth <= 32:
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unpackInt64x1to32bitsAVX2(dst, src, bitWidth)
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case bitWidth == 64:
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copy(dst, unsafecast.Slice[int64](src))
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default:
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unpackInt64Default(dst, src, bitWidth)
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}
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}
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