diff options
Diffstat (limited to 'vendor/github.com/minio/md5-simd/md5-util_amd64.go')
| -rw-r--r-- | vendor/github.com/minio/md5-simd/md5-util_amd64.go | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/vendor/github.com/minio/md5-simd/md5-util_amd64.go b/vendor/github.com/minio/md5-simd/md5-util_amd64.go deleted file mode 100644 index 73981b0..0000000 --- a/vendor/github.com/minio/md5-simd/md5-util_amd64.go +++ /dev/null | |||
| @@ -1,85 +0,0 @@ | |||
| 1 | //+build !noasm,!appengine,gc | ||
| 2 | |||
| 3 | // Copyright (c) 2020 MinIO Inc. All rights reserved. | ||
| 4 | // Use of this source code is governed by a license that can be | ||
| 5 | // found in the LICENSE file. | ||
| 6 | |||
| 7 | package md5simd | ||
| 8 | |||
| 9 | // Helper struct for sorting blocks based on length | ||
| 10 | type lane struct { | ||
| 11 | len uint | ||
| 12 | pos uint | ||
| 13 | } | ||
| 14 | |||
| 15 | type digest struct { | ||
| 16 | s [4]uint32 | ||
| 17 | } | ||
| 18 | |||
| 19 | // Helper struct for generating number of rounds in combination with mask for valid lanes | ||
| 20 | type maskRounds struct { | ||
| 21 | mask uint64 | ||
| 22 | rounds uint64 | ||
| 23 | } | ||
| 24 | |||
| 25 | func generateMaskAndRounds8(input [8][]byte, mr *[8]maskRounds) (rounds int) { | ||
| 26 | // Sort on blocks length small to large | ||
| 27 | var sorted [8]lane | ||
| 28 | for c, inpt := range input[:] { | ||
| 29 | sorted[c] = lane{uint(len(inpt)), uint(c)} | ||
| 30 | for i := c - 1; i >= 0; i-- { | ||
| 31 | // swap so largest is at the end... | ||
| 32 | if sorted[i].len > sorted[i+1].len { | ||
| 33 | sorted[i], sorted[i+1] = sorted[i+1], sorted[i] | ||
| 34 | continue | ||
| 35 | } | ||
| 36 | break | ||
| 37 | } | ||
| 38 | } | ||
| 39 | |||
| 40 | // Create mask array including 'rounds' (of processing blocks of 64 bytes) between masks | ||
| 41 | m, round := uint64(0xff), uint64(0) | ||
| 42 | |||
| 43 | for _, s := range sorted[:] { | ||
| 44 | if s.len > 0 { | ||
| 45 | if uint64(s.len)>>6 > round { | ||
| 46 | mr[rounds] = maskRounds{m, (uint64(s.len) >> 6) - round} | ||
| 47 | rounds++ | ||
| 48 | } | ||
| 49 | round = uint64(s.len) >> 6 | ||
| 50 | } | ||
| 51 | m = m & ^(1 << uint(s.pos)) | ||
| 52 | } | ||
| 53 | return | ||
| 54 | } | ||
| 55 | |||
| 56 | func generateMaskAndRounds16(input [16][]byte, mr *[16]maskRounds) (rounds int) { | ||
| 57 | // Sort on blocks length small to large | ||
| 58 | var sorted [16]lane | ||
| 59 | for c, inpt := range input[:] { | ||
| 60 | sorted[c] = lane{uint(len(inpt)), uint(c)} | ||
| 61 | for i := c - 1; i >= 0; i-- { | ||
| 62 | // swap so largest is at the end... | ||
| 63 | if sorted[i].len > sorted[i+1].len { | ||
| 64 | sorted[i], sorted[i+1] = sorted[i+1], sorted[i] | ||
| 65 | continue | ||
| 66 | } | ||
| 67 | break | ||
| 68 | } | ||
| 69 | } | ||
| 70 | |||
| 71 | // Create mask array including 'rounds' (of processing blocks of 64 bytes) between masks | ||
| 72 | m, round := uint64(0xffff), uint64(0) | ||
| 73 | |||
| 74 | for _, s := range sorted[:] { | ||
| 75 | if s.len > 0 { | ||
| 76 | if uint64(s.len)>>6 > round { | ||
| 77 | mr[rounds] = maskRounds{m, (uint64(s.len) >> 6) - round} | ||
| 78 | rounds++ | ||
| 79 | } | ||
| 80 | round = uint64(s.len) >> 6 | ||
| 81 | } | ||
| 82 | m = m & ^(1 << uint(s.pos)) | ||
| 83 | } | ||
| 84 | return | ||
| 85 | } | ||