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Code Issues Projects Releases Wiki Activity

Grand test fixup (#138)

Browse Source 
* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig
This commit is contained in:
Tobi Smethurst
2021-08-12 21:03:24 +02:00
committed by GitHub
parent 329a5e8144
commit 98263a7de6
2677 changed files with 1090869 additions and 219 deletions
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11
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language: go
go:
- 1.10.x
- 1.11.x
- 1.12.x
- 1.13.x
- tip
matrix:
fast_finish: true
allow_failures:
- go: tip

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Copyright (c) 2016, Tom Thorogood.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the Tom Thorogood nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---- Portions of the source code are also covered by the following license: ----
Copyright (c) 2012 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---- Portions of the source code are also covered by the following license: ----
Copyright (c) 2005-2016, Wojciech Muła
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# go-hex
[![GoDoc](https://godoc.org/github.com/tmthrgd/go-hex?status.svg)](https://godoc.org/github.com/tmthrgd/go-hex)
[![Build Status](https://travis-ci.org/tmthrgd/go-hex.svg?branch=master)](https://travis-ci.org/tmthrgd/go-hex)
An efficient hexadecimal implementation for Golang.
go-hex provides hex encoding and decoding using SSE/AVX instructions on x86-64.
## Download
```
go get github.com/tmthrgd/go-hex
```
## Benchmark
go-hex:
```
BenchmarkEncode/15-8 100000000 17.4 ns/op 863.43 MB/s
BenchmarkEncode/32-8 100000000 11.9 ns/op 2690.43 MB/s
BenchmarkEncode/128-8 100000000 21.4 ns/op 5982.92 MB/s
BenchmarkEncode/1k-8 20000000 88.5 ns/op 11572.80 MB/s
BenchmarkEncode/16k-8 1000000 1254 ns/op 13058.10 MB/s
BenchmarkEncode/128k-8 100000 12965 ns/op 10109.53 MB/s
BenchmarkEncode/1M-8 10000 119465 ns/op 8777.23 MB/s
BenchmarkEncode/16M-8 500 3530380 ns/op 4752.24 MB/s
BenchmarkEncode/128M-8 50 28001913 ns/op 4793.16 MB/s
BenchmarkDecode/14-8 100000000 12.6 ns/op 1110.01 MB/s
BenchmarkDecode/32-8 100000000 12.5 ns/op 2558.10 MB/s
BenchmarkDecode/128-8 50000000 27.2 ns/op 4697.66 MB/s
BenchmarkDecode/1k-8 10000000 168 ns/op 6093.43 MB/s
BenchmarkDecode/16k-8 500000 2543 ns/op 6442.09 MB/s
BenchmarkDecode/128k-8 100000 20339 ns/op 6444.24 MB/s
BenchmarkDecode/1M-8 10000 164313 ns/op 6381.57 MB/s
BenchmarkDecode/16M-8 500 3099822 ns/op 5412.31 MB/s
BenchmarkDecode/128M-8 50 24865822 ns/op 5397.68 MB/s
```
[encoding/hex](https://golang.org/pkg/encoding/hex/):
```
BenchmarkRefEncode/15-8 50000000 36.1 ns/op 415.07 MB/s
BenchmarkRefEncode/32-8 20000000 72.9 ns/op 439.14 MB/s
BenchmarkRefEncode/128-8 5000000 289 ns/op 441.54 MB/s
BenchmarkRefEncode/1k-8 1000000 2268 ns/op 451.49 MB/s
BenchmarkRefEncode/16k-8 30000 39110 ns/op 418.91 MB/s
BenchmarkRefEncode/128k-8 5000 291260 ns/op 450.02 MB/s
BenchmarkRefEncode/1M-8 1000 2277578 ns/op 460.39 MB/s
BenchmarkRefEncode/16M-8 30 37087543 ns/op 452.37 MB/s
BenchmarkRefEncode/128M-8 5 293611713 ns/op 457.13 MB/s
BenchmarkRefDecode/14-8 30000000 53.7 ns/op 260.49 MB/s
BenchmarkRefDecode/32-8 10000000 128 ns/op 248.44 MB/s
BenchmarkRefDecode/128-8 3000000 481 ns/op 265.95 MB/s
BenchmarkRefDecode/1k-8 300000 4172 ns/op 245.43 MB/s
BenchmarkRefDecode/16k-8 10000 111989 ns/op 146.30 MB/s
BenchmarkRefDecode/128k-8 2000 909077 ns/op 144.18 MB/s
BenchmarkRefDecode/1M-8 200 7275779 ns/op 144.12 MB/s
BenchmarkRefDecode/16M-8 10 116574839 ns/op 143.92 MB/s
BenchmarkRefDecode/128M-8 2 933871637 ns/op 143.72 MB/s
```
[encoding/hex](https://golang.org/pkg/encoding/hex/) -> go-hex:
```
benchmark old ns/op new ns/op delta
BenchmarkEncode/15-8 36.1 17.4 -51.80%
BenchmarkEncode/32-8 72.9 11.9 -83.68%
BenchmarkEncode/128-8 289 21.4 -92.60%
BenchmarkEncode/1k-8 2268 88.5 -96.10%
BenchmarkEncode/16k-8 39110 1254 -96.79%
BenchmarkEncode/128k-8 291260 12965 -95.55%
BenchmarkEncode/1M-8 2277578 119465 -94.75%
BenchmarkEncode/16M-8 37087543 3530380 -90.48%
BenchmarkEncode/128M-8 293611713 28001913 -90.46%
BenchmarkDecode/14-8 53.7 12.6 -76.54%
BenchmarkDecode/32-8 128 12.5 -90.23%
BenchmarkDecode/128-8 481 27.2 -94.35%
BenchmarkDecode/1k-8 4172 168 -95.97%
BenchmarkDecode/16k-8 111989 2543 -97.73%
BenchmarkDecode/128k-8 909077 20339 -97.76%
BenchmarkDecode/1M-8 7275779 164313 -97.74%
BenchmarkDecode/16M-8 116574839 3099822 -97.34%
BenchmarkDecode/128M-8 933871637 24865822 -97.34%
benchmark old MB/s new MB/s speedup
BenchmarkEncode/15-8 415.07 863.43 2.08x
BenchmarkEncode/32-8 439.14 2690.43 6.13x
BenchmarkEncode/128-8 441.54 5982.92 13.55x
BenchmarkEncode/1k-8 451.49 11572.80 25.63x
BenchmarkEncode/16k-8 418.91 13058.10 31.17x
BenchmarkEncode/128k-8 450.02 10109.53 22.46x
BenchmarkEncode/1M-8 460.39 8777.23 19.06x
BenchmarkEncode/16M-8 452.37 4752.24 10.51x
BenchmarkEncode/128M-8 457.13 4793.16 10.49x
BenchmarkDecode/14-8 260.49 1110.01 4.26x
BenchmarkDecode/32-8 248.44 2558.10 10.30x
BenchmarkDecode/128-8 265.95 4697.66 17.66x
BenchmarkDecode/1k-8 245.43 6093.43 24.83x
BenchmarkDecode/16k-8 146.30 6442.09 44.03x
BenchmarkDecode/128k-8 144.18 6444.24 44.70x
BenchmarkDecode/1M-8 144.12 6381.57 44.28x
BenchmarkDecode/16M-8 143.92 5412.31 37.61x
BenchmarkDecode/128M-8 143.72 5397.68 37.56x
```
## License
Unless otherwise noted, the go-hex source files are distributed under the Modified BSD License
found in the LICENSE file.

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// Copyright 2016 Tom Thorogood. All rights reserved.
// Use of this source code is governed by a
// Modified BSD License license that can be found in
// the LICENSE file.
//
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package hex is an efficient hexadecimal implementation for Golang.
package hex
import (
"errors"
"fmt"
)
var errLength = errors.New("go-hex: odd length hex string")
var (
lower = []byte("0123456789abcdef")
upper = []byte("0123456789ABCDEF")
)
// InvalidByteError values describe errors resulting from an invalid byte in a hex string.
type InvalidByteError byte
func (e InvalidByteError) Error() string {
return fmt.Sprintf("go-hex: invalid byte: %#U", rune(e))
}
// EncodedLen returns the length of an encoding of n source bytes.
func EncodedLen(n int) int {
return n * 2
}
// DecodedLen returns the length of a decoding of n source bytes.
func DecodedLen(n int) int {
return n / 2
}
// Encode encodes src into EncodedLen(len(src))
// bytes of dst. As a convenience, it returns the number
// of bytes written to dst, but this value is always EncodedLen(len(src)).
// Encode implements lowercase hexadecimal encoding.
func Encode(dst, src []byte) int {
return RawEncode(dst, src, lower)
}
// EncodeUpper encodes src into EncodedLen(len(src))
// bytes of dst. As a convenience, it returns the number
// of bytes written to dst, but this value is always EncodedLen(len(src)).
// EncodeUpper implements uppercase hexadecimal encoding.
func EncodeUpper(dst, src []byte) int {
return RawEncode(dst, src, upper)
}
// EncodeToString returns the lowercase hexadecimal encoding of src.
func EncodeToString(src []byte) string {
return RawEncodeToString(src, lower)
}
// EncodeUpperToString returns the uppercase hexadecimal encoding of src.
func EncodeUpperToString(src []byte) string {
return RawEncodeToString(src, upper)
}
// RawEncodeToString returns the hexadecimal encoding of src for a given
// alphabet.
func RawEncodeToString(src, alpha []byte) string {
dst := make([]byte, EncodedLen(len(src)))
RawEncode(dst, src, alpha)
return string(dst)
}
// DecodeString returns the bytes represented by the hexadecimal string s.
func DecodeString(s string) ([]byte, error) {
src := []byte(s)
dst := make([]byte, DecodedLen(len(src)))
if _, err := Decode(dst, src); err != nil {
return nil, err
}
return dst, nil
}
// MustDecodeString is like DecodeString but panics if the string cannot be
// parsed. It simplifies safe initialization of global variables holding
// binary data.
func MustDecodeString(str string) []byte {
dst, err := DecodeString(str)
if err != nil {
panic(err)
}
return dst
}
func encodeGeneric(dst, src, alpha []byte) {
for i, v := range src {
dst[i*2] = alpha[v>>4]
dst[i*2+1] = alpha[v&0x0f]
}
}
func decodeGeneric(dst, src []byte) (uint64, bool) {
for i := 0; i < len(src)/2; i++ {
a, ok := fromHexChar(src[i*2])
if !ok {
return uint64(i * 2), false
}
b, ok := fromHexChar(src[i*2+1])
if !ok {
return uint64(i*2 + 1), false
}
dst[i] = (a << 4) | b
}
return 0, true
}
// fromHexChar converts a hex character into its value and a success flag.
func fromHexChar(c byte) (byte, bool) {
switch {
case '0' <= c && c <= '9':
return c - '0', true
case 'a' <= c && c <= 'f':
return c - 'a' + 10, true
case 'A' <= c && c <= 'F':
return c - 'A' + 10, true
}
return 0, false
}

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// Copyright 2016 Tom Thorogood. All rights reserved.
// Use of this source code is governed by a
// Modified BSD License license that can be found in
// the LICENSE file.
// +build amd64,!gccgo,!appengine
package hex
import "golang.org/x/sys/cpu"
// RawEncode encodes src into EncodedLen(len(src))
// bytes of dst. As a convenience, it returns the number
// of bytes written to dst, but this value is always EncodedLen(len(src)).
// RawEncode implements hexadecimal encoding for a given alphabet.
func RawEncode(dst, src, alpha []byte) int {
if len(alpha) != 16 {
panic("invalid alphabet")
}
if len(dst) < len(src)*2 {
panic("dst buffer is too small")
}
if len(src) == 0 {
return 0
}
switch {
case cpu.X86.HasAVX:
encodeAVX(&dst[0], &src[0], uint64(len(src)), &alpha[0])
case cpu.X86.HasSSE41:
encodeSSE(&dst[0], &src[0], uint64(len(src)), &alpha[0])
default:
encodeGeneric(dst, src, alpha)
}
return len(src) * 2
}
// Decode decodes src into DecodedLen(len(src)) bytes, returning the actual
// number of bytes written to dst.
//
// If Decode encounters invalid input, it returns an error describing the failure.
func Decode(dst, src []byte) (int, error) {
if len(src)%2 != 0 {
return 0, errLength
}
if len(dst) < len(src)/2 {
panic("dst buffer is too small")
}
if len(src) == 0 {
return 0, nil
}
var (
n uint64
ok bool
)
switch {
case cpu.X86.HasAVX:
n, ok = decodeAVX(&dst[0], &src[0], uint64(len(src)))
case cpu.X86.HasSSE41:
n, ok = decodeSSE(&dst[0], &src[0], uint64(len(src)))
default:
n, ok = decodeGeneric(dst, src)
}
if !ok {
return 0, InvalidByteError(src[n])
}
return len(src) / 2, nil
}
//go:generate go run asm_gen.go
// This function is implemented in hex_encode_amd64.s
//go:noescape
func encodeAVX(dst *byte, src *byte, len uint64, alpha *byte)
// This function is implemented in hex_encode_amd64.s
//go:noescape
func encodeSSE(dst *byte, src *byte, len uint64, alpha *byte)
// This function is implemented in hex_decode_amd64.s
//go:noescape
func decodeAVX(dst *byte, src *byte, len uint64) (n uint64, ok bool)
// This function is implemented in hex_decode_amd64.s
//go:noescape
func decodeSSE(dst *byte, src *byte, len uint64) (n uint64, ok bool)

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// Copyright 2016 Tom Thorogood. All rights reserved.
// Use of this source code is governed by a
// Modified BSD License license that can be found in
// the LICENSE file.
//
// Copyright 2005-2016, Wojciech Muła. All rights reserved.
// Use of this source code is governed by a
// Simplified BSD License license that can be found in
// the LICENSE file.
//
// This file is auto-generated - do not modify
// +build amd64,!gccgo,!appengine
#include "textflag.h"
DATA decodeBase<>+0x00(SB)/8, $0x3030303030303030
DATA decodeBase<>+0x08(SB)/8, $0x3030303030303030
DATA decodeBase<>+0x10(SB)/8, $0x2727272727272727
DATA decodeBase<>+0x18(SB)/8, $0x2727272727272727
GLOBL decodeBase<>(SB),RODATA,$32
DATA decodeToLower<>+0x00(SB)/8, $0x2020202020202020
DATA decodeToLower<>+0x08(SB)/8, $0x2020202020202020
GLOBL decodeToLower<>(SB),RODATA,$16
DATA decodeHigh<>+0x00(SB)/8, $0x0e0c0a0806040200
DATA decodeHigh<>+0x08(SB)/8, $0xffffffffffffffff
GLOBL decodeHigh<>(SB),RODATA,$16
DATA decodeLow<>+0x00(SB)/8, $0x0f0d0b0907050301
DATA decodeLow<>+0x08(SB)/8, $0xffffffffffffffff
GLOBL decodeLow<>(SB),RODATA,$16
DATA decodeValid<>+0x00(SB)/8, $0xb0b0b0b0b0b0b0b0
DATA decodeValid<>+0x08(SB)/8, $0xb0b0b0b0b0b0b0b0
DATA decodeValid<>+0x10(SB)/8, $0xb9b9b9b9b9b9b9b9
DATA decodeValid<>+0x18(SB)/8, $0xb9b9b9b9b9b9b9b9
DATA decodeValid<>+0x20(SB)/8, $0xe1e1e1e1e1e1e1e1
DATA decodeValid<>+0x28(SB)/8, $0xe1e1e1e1e1e1e1e1
DATA decodeValid<>+0x30(SB)/8, $0xe6e6e6e6e6e6e6e6
DATA decodeValid<>+0x38(SB)/8, $0xe6e6e6e6e6e6e6e6
GLOBL decodeValid<>(SB),RODATA,$64
DATA decodeToSigned<>+0x00(SB)/8, $0x8080808080808080
DATA decodeToSigned<>+0x08(SB)/8, $0x8080808080808080
GLOBL decodeToSigned<>(SB),RODATA,$16
TEXT ·decodeAVX(SB),NOSPLIT,$0
MOVQ dst+0(FP), DI
MOVQ src+8(FP), SI
MOVQ len+16(FP), BX
MOVQ SI, R15
MOVOU decodeValid<>(SB), X14
MOVOU decodeValid<>+0x20(SB), X15
MOVW $65535, DX
CMPQ BX, $16
JB tail
bigloop:
MOVOU (SI), X0
VPXOR decodeToSigned<>(SB), X0, X1
POR decodeToLower<>(SB), X0
VPXOR decodeToSigned<>(SB), X0, X2
VPCMPGTB X1, X14, X3
PCMPGTB decodeValid<>+0x10(SB), X1
VPCMPGTB X2, X15, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
VPSHUFB decodeLow<>(SB), X0, X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
MOVQ X0, (DI)
SUBQ $16, BX
JZ ret
ADDQ $16, SI
ADDQ $8, DI
CMPQ BX, $16
JAE bigloop
tail:
MOVQ $16, CX
SUBQ BX, CX
SHRW CX, DX
CMPQ BX, $4
JB tail_in_2
JE tail_in_4
CMPQ BX, $8
JB tail_in_6
JE tail_in_8
CMPQ BX, $12
JB tail_in_10
JE tail_in_12
tail_in_14:
PINSRW $6, 12(SI), X0
tail_in_12:
PINSRW $5, 10(SI), X0
tail_in_10:
PINSRW $4, 8(SI), X0
tail_in_8:
PINSRQ $0, (SI), X0
JMP tail_conv
tail_in_6:
PINSRW $2, 4(SI), X0
tail_in_4:
PINSRW $1, 2(SI), X0
tail_in_2:
PINSRW $0, (SI), X0
tail_conv:
VPXOR decodeToSigned<>(SB), X0, X1
POR decodeToLower<>(SB), X0
VPXOR decodeToSigned<>(SB), X0, X2
VPCMPGTB X1, X14, X3
PCMPGTB decodeValid<>+0x10(SB), X1
VPCMPGTB X2, X15, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
VPSHUFB decodeLow<>(SB), X0, X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
CMPQ BX, $4
JB tail_out_2
JE tail_out_4
CMPQ BX, $8
JB tail_out_6
JE tail_out_8
CMPQ BX, $12
JB tail_out_10
JE tail_out_12
tail_out_14:
PEXTRB $6, X0, 6(DI)
tail_out_12:
PEXTRB $5, X0, 5(DI)
tail_out_10:
PEXTRB $4, X0, 4(DI)
tail_out_8:
MOVL X0, (DI)
JMP ret
tail_out_6:
PEXTRB $2, X0, 2(DI)
tail_out_4:
PEXTRB $1, X0, 1(DI)
tail_out_2:
PEXTRB $0, X0, (DI)
ret:
MOVB $1, ok+32(FP)
RET
invalid:
BSFW AX, AX
SUBQ R15, SI
ADDQ SI, AX
MOVQ AX, n+24(FP)
MOVB $0, ok+32(FP)
RET
TEXT ·decodeSSE(SB),NOSPLIT,$0
MOVQ dst+0(FP), DI
MOVQ src+8(FP), SI
MOVQ len+16(FP), BX
MOVQ SI, R15
MOVOU decodeValid<>(SB), X14
MOVOU decodeValid<>+0x20(SB), X15
MOVW $65535, DX
CMPQ BX, $16
JB tail
bigloop:
MOVOU (SI), X0
MOVOU X0, X1
PXOR decodeToSigned<>(SB), X1
POR decodeToLower<>(SB), X0
MOVOU X0, X2
PXOR decodeToSigned<>(SB), X2
MOVOU X14, X3
PCMPGTB X1, X3
PCMPGTB decodeValid<>+0x10(SB), X1
MOVOU X15, X4
PCMPGTB X2, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
MOVOU X0, X3
PSHUFB decodeLow<>(SB), X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
MOVQ X0, (DI)
SUBQ $16, BX
JZ ret
ADDQ $16, SI
ADDQ $8, DI
CMPQ BX, $16
JAE bigloop
tail:
MOVQ $16, CX
SUBQ BX, CX
SHRW CX, DX
CMPQ BX, $4
JB tail_in_2
JE tail_in_4
CMPQ BX, $8
JB tail_in_6
JE tail_in_8
CMPQ BX, $12
JB tail_in_10
JE tail_in_12
tail_in_14:
PINSRW $6, 12(SI), X0
tail_in_12:
PINSRW $5, 10(SI), X0
tail_in_10:
PINSRW $4, 8(SI), X0
tail_in_8:
PINSRQ $0, (SI), X0
JMP tail_conv
tail_in_6:
PINSRW $2, 4(SI), X0
tail_in_4:
PINSRW $1, 2(SI), X0
tail_in_2:
PINSRW $0, (SI), X0
tail_conv:
MOVOU X0, X1
PXOR decodeToSigned<>(SB), X1
POR decodeToLower<>(SB), X0
MOVOU X0, X2
PXOR decodeToSigned<>(SB), X2
MOVOU X14, X3
PCMPGTB X1, X3
PCMPGTB decodeValid<>+0x10(SB), X1
MOVOU X15, X4
PCMPGTB X2, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
MOVOU X0, X3
PSHUFB decodeLow<>(SB), X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
CMPQ BX, $4
JB tail_out_2
JE tail_out_4
CMPQ BX, $8
JB tail_out_6
JE tail_out_8
CMPQ BX, $12
JB tail_out_10
JE tail_out_12
tail_out_14:
PEXTRB $6, X0, 6(DI)
tail_out_12:
PEXTRB $5, X0, 5(DI)
tail_out_10:
PEXTRB $4, X0, 4(DI)
tail_out_8:
MOVL X0, (DI)
JMP ret
tail_out_6:
PEXTRB $2, X0, 2(DI)
tail_out_4:
PEXTRB $1, X0, 1(DI)
tail_out_2:
PEXTRB $0, X0, (DI)
ret:
MOVB $1, ok+32(FP)
RET
invalid:
BSFW AX, AX
SUBQ R15, SI
ADDQ SI, AX
MOVQ AX, n+24(FP)
MOVB $0, ok+32(FP)
RET

227
vendor/github.com/tmthrgd/go-hex/hex_encode_amd64.s generated vendored Normal file
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// Copyright 2016 Tom Thorogood. All rights reserved.
// Use of this source code is governed by a
// Modified BSD License license that can be found in
// the LICENSE file.
//
// Copyright 2005-2016, Wojciech Muła. All rights reserved.
// Use of this source code is governed by a
// Simplified BSD License license that can be found in
// the LICENSE file.
//
// This file is auto-generated - do not modify
// +build amd64,!gccgo,!appengine
#include "textflag.h"
DATA encodeMask<>+0x00(SB)/8, $0x0f0f0f0f0f0f0f0f
DATA encodeMask<>+0x08(SB)/8, $0x0f0f0f0f0f0f0f0f
GLOBL encodeMask<>(SB),RODATA,$16
TEXT ·encodeAVX(SB),NOSPLIT,$0
MOVQ dst+0(FP), DI
MOVQ src+8(FP), SI
MOVQ len+16(FP), BX
MOVQ alpha+24(FP), DX
MOVOU (DX), X15
CMPQ BX, $16
JB tail
bigloop:
MOVOU -16(SI)(BX*1), X0
VPAND encodeMask<>(SB), X0, X1
PSRLW $4, X0
PAND encodeMask<>(SB), X0
VPUNPCKHBW X1, X0, X3
PUNPCKLBW X1, X0
VPSHUFB X0, X15, X1
VPSHUFB X3, X15, X2
MOVOU X2, -16(DI)(BX*2)
MOVOU X1, -32(DI)(BX*2)
SUBQ $16, BX
JZ ret
CMPQ BX, $16
JAE bigloop
tail:
CMPQ BX, $2
JB tail_in_1
JE tail_in_2
CMPQ BX, $4
JB tail_in_3
JE tail_in_4
CMPQ BX, $6
JB tail_in_5
JE tail_in_6
CMPQ BX, $8
JB tail_in_7
tail_in_8:
MOVQ (SI), X0
JMP tail_conv
tail_in_7:
PINSRB $6, 6(SI), X0
tail_in_6:
PINSRB $5, 5(SI), X0
tail_in_5:
PINSRB $4, 4(SI), X0
tail_in_4:
PINSRD $0, (SI), X0
JMP tail_conv
tail_in_3:
PINSRB $2, 2(SI), X0
tail_in_2:
PINSRB $1, 1(SI), X0
tail_in_1:
PINSRB $0, (SI), X0
tail_conv:
VPAND encodeMask<>(SB), X0, X1
PSRLW $4, X0
PAND encodeMask<>(SB), X0
PUNPCKLBW X1, X0
VPSHUFB X0, X15, X1
CMPQ BX, $2
JB tail_out_1
JE tail_out_2
CMPQ BX, $4
JB tail_out_3
JE tail_out_4
CMPQ BX, $6
JB tail_out_5
JE tail_out_6
CMPQ BX, $8
JB tail_out_7
tail_out_8:
MOVOU X1, (DI)
SUBQ $8, BX
JZ ret
ADDQ $8, SI
ADDQ $16, DI
JMP tail
tail_out_7:
PEXTRB $13, X1, 13(DI)
PEXTRB $12, X1, 12(DI)
tail_out_6:
PEXTRB $11, X1, 11(DI)
PEXTRB $10, X1, 10(DI)
tail_out_5:
PEXTRB $9, X1, 9(DI)
PEXTRB $8, X1, 8(DI)
tail_out_4:
MOVQ X1, (DI)
RET
tail_out_3:
PEXTRB $5, X1, 5(DI)
PEXTRB $4, X1, 4(DI)
tail_out_2:
PEXTRB $3, X1, 3(DI)
PEXTRB $2, X1, 2(DI)
tail_out_1:
PEXTRB $1, X1, 1(DI)
PEXTRB $0, X1, (DI)
ret:
RET
TEXT ·encodeSSE(SB),NOSPLIT,$0
MOVQ dst+0(FP), DI
MOVQ src+8(FP), SI
MOVQ len+16(FP), BX
MOVQ alpha+24(FP), DX
MOVOU (DX), X15
CMPQ BX, $16
JB tail
bigloop:
MOVOU -16(SI)(BX*1), X0
MOVOU X0, X1
PAND encodeMask<>(SB), X1
PSRLW $4, X0
PAND encodeMask<>(SB), X0
MOVOU X0, X3
PUNPCKHBW X1, X3
PUNPCKLBW X1, X0
MOVOU X15, X1
PSHUFB X0, X1
MOVOU X15, X2
PSHUFB X3, X2
MOVOU X2, -16(DI)(BX*2)
MOVOU X1, -32(DI)(BX*2)
SUBQ $16, BX
JZ ret
CMPQ BX, $16
JAE bigloop
tail:
CMPQ BX, $2
JB tail_in_1
JE tail_in_2
CMPQ BX, $4
JB tail_in_3
JE tail_in_4
CMPQ BX, $6
JB tail_in_5
JE tail_in_6
CMPQ BX, $8
JB tail_in_7
tail_in_8:
MOVQ (SI), X0
JMP tail_conv
tail_in_7:
PINSRB $6, 6(SI), X0
tail_in_6:
PINSRB $5, 5(SI), X0
tail_in_5:
PINSRB $4, 4(SI), X0
tail_in_4:
PINSRD $0, (SI), X0
JMP tail_conv
tail_in_3:
PINSRB $2, 2(SI), X0
tail_in_2:
PINSRB $1, 1(SI), X0
tail_in_1:
PINSRB $0, (SI), X0
tail_conv:
MOVOU X0, X1
PAND encodeMask<>(SB), X1
PSRLW $4, X0
PAND encodeMask<>(SB), X0
PUNPCKLBW X1, X0
MOVOU X15, X1
PSHUFB X0, X1
CMPQ BX, $2
JB tail_out_1
JE tail_out_2
CMPQ BX, $4
JB tail_out_3
JE tail_out_4
CMPQ BX, $6
JB tail_out_5
JE tail_out_6
CMPQ BX, $8
JB tail_out_7
tail_out_8:
MOVOU X1, (DI)
SUBQ $8, BX
JZ ret
ADDQ $8, SI
ADDQ $16, DI
JMP tail
tail_out_7:
PEXTRB $13, X1, 13(DI)
PEXTRB $12, X1, 12(DI)
tail_out_6:
PEXTRB $11, X1, 11(DI)
PEXTRB $10, X1, 10(DI)
tail_out_5:
PEXTRB $9, X1, 9(DI)
PEXTRB $8, X1, 8(DI)
tail_out_4:
MOVQ X1, (DI)
RET
tail_out_3:
PEXTRB $5, X1, 5(DI)
PEXTRB $4, X1, 4(DI)
tail_out_2:
PEXTRB $3, X1, 3(DI)
PEXTRB $2, X1, 2(DI)
tail_out_1:
PEXTRB $1, X1, 1(DI)
PEXTRB $0, X1, (DI)
ret:
RET

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vendor/github.com/tmthrgd/go-hex/hex_other.go generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !amd64 gccgo appengine
package hex
// RawEncode encodes src into EncodedLen(len(src))
// bytes of dst. As a convenience, it returns the number
// of bytes written to dst, but this value is always EncodedLen(len(src)).
// RawEncode implements hexadecimal encoding for a given alphabet.
func RawEncode(dst, src, alpha []byte) int {
if len(alpha) != 16 {
panic("invalid alphabet")
}
encodeGeneric(dst, src, alpha)
return len(src) * 2
}
// Decode decodes src into DecodedLen(len(src)) bytes, returning the actual
// number of bytes written to dst.
//
// If Decode encounters invalid input, it returns an error describing the failure.
func Decode(dst, src []byte) (int, error) {
if len(src)%2 == 1 {
return 0, errLength
}
if n, ok := decodeGeneric(dst, src); !ok {
return 0, InvalidByteError(src[n])
}
return len(src) / 2, nil
}