96 lines
2.3 KiB
Go
96 lines
2.3 KiB
Go
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// Copyright (c) 2019. Temple3x (temple3x@gmail.com)
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//
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// Use of this source code is governed by the MIT License
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// that can be found in the LICENSE file.
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package xorsimd
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func encode(dst []byte, src [][]byte) {
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switch cpuFeature {
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case avx512:
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encodeAVX512(dst, src)
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case avx2:
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encodeAVX2(dst, src)
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default:
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encodeSSE2(dst, src)
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}
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return
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}
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// Bytes8 XORs of 8 Bytes.
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// The slice arguments a, b, dst's lengths are assumed to be at least 8,
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// if not, Bytes8 will panic.
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func Bytes8(dst, a, b []byte) {
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bytes8(&dst[0], &a[0], &b[0])
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}
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// Bytes16 XORs of packed 16 Bytes.
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// The slice arguments a, b, dst's lengths are assumed to be at least 16,
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// if not, Bytes16 will panic.
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func Bytes16(dst, a, b []byte) {
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bytes16(&dst[0], &a[0], &b[0])
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}
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// Bytes8Align XORs of 8 Bytes.
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// The slice arguments a, b, dst's lengths are assumed to be at least 8,
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// if not, Bytes8 will panic.
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func Bytes8Align(dst, a, b []byte) {
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bytes8(&dst[0], &a[0], &b[0])
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}
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// Bytes16Align XORs of packed 16 Bytes.
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// The slice arguments a, b, dst's lengths are assumed to be at least 16,
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// if not, Bytes16 will panic.
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func Bytes16Align(dst, a, b []byte) {
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bytes16(&dst[0], &a[0], &b[0])
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}
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// BytesA XORs the len(a) bytes in a and b into a
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// destination slice.
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// The destination should have enough space.
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//
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// It's used for encoding small bytes slices (< dozens bytes),
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// and the slices may not be aligned to 8 bytes or 16 bytes.
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// If the length is big, it's better to use 'func Bytes(dst, a, b []byte)' instead
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// for gain better performance.
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func BytesA(dst, a, b []byte) {
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bytesN(&dst[0], &a[0], &b[0], len(a))
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}
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// BytesB XORs the len(b) bytes in a and b into a
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// destination slice.
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// The destination should have enough space.
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//
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// It's used for encoding small bytes slices (< dozens bytes),
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// and the slices may not be aligned to 8 bytes or 16 bytes.
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// If the length is big, it's better to use 'func Bytes(dst, a, b []byte)' instead
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// for gain better performance.
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func BytesB(dst, a, b []byte) {
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bytesN(&dst[0], &a[0], &b[0], len(b))
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}
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//go:noescape
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func encodeAVX512(dst []byte, src [][]byte)
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//go:noescape
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func encodeAVX2(dst []byte, src [][]byte)
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//go:noescape
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func encodeSSE2(dst []byte, src [][]byte)
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//go:noescape
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func bytesN(dst, a, b *byte, n int)
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//go:noescape
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func bytes8(dst, a, b *byte)
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//go:noescape
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func bytes16(dst, a, b *byte)
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