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Diffstat (limited to 'vendor/github.com/cespare/xxhash/xxhash_other.go')
-rw-r--r--vendor/github.com/cespare/xxhash/xxhash_other.go75
1 files changed, 0 insertions, 75 deletions
diff --git a/vendor/github.com/cespare/xxhash/xxhash_other.go b/vendor/github.com/cespare/xxhash/xxhash_other.go
deleted file mode 100644
index c68d13f89..000000000
--- a/vendor/github.com/cespare/xxhash/xxhash_other.go
+++ /dev/null
@@ -1,75 +0,0 @@
-// +build !amd64 appengine !gc purego
-
-package xxhash
-
-// Sum64 computes the 64-bit xxHash digest of b.
-func Sum64(b []byte) uint64 {
- // A simpler version would be
- // x := New()
- // x.Write(b)
- // return x.Sum64()
- // but this is faster, particularly for small inputs.
-
- n := len(b)
- var h uint64
-
- if n >= 32 {
- v1 := prime1v + prime2
- v2 := prime2
- v3 := uint64(0)
- v4 := -prime1v
- for len(b) >= 32 {
- v1 = round(v1, u64(b[0:8:len(b)]))
- v2 = round(v2, u64(b[8:16:len(b)]))
- v3 = round(v3, u64(b[16:24:len(b)]))
- v4 = round(v4, u64(b[24:32:len(b)]))
- b = b[32:len(b):len(b)]
- }
- h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4)
- h = mergeRound(h, v1)
- h = mergeRound(h, v2)
- h = mergeRound(h, v3)
- h = mergeRound(h, v4)
- } else {
- h = prime5
- }
-
- h += uint64(n)
-
- i, end := 0, len(b)
- for ; i+8 <= end; i += 8 {
- k1 := round(0, u64(b[i:i+8:len(b)]))
- h ^= k1
- h = rol27(h)*prime1 + prime4
- }
- if i+4 <= end {
- h ^= uint64(u32(b[i:i+4:len(b)])) * prime1
- h = rol23(h)*prime2 + prime3
- i += 4
- }
- for ; i < end; i++ {
- h ^= uint64(b[i]) * prime5
- h = rol11(h) * prime1
- }
-
- h ^= h >> 33
- h *= prime2
- h ^= h >> 29
- h *= prime3
- h ^= h >> 32
-
- return h
-}
-
-func writeBlocks(x *xxh, b []byte) []byte {
- v1, v2, v3, v4 := x.v1, x.v2, x.v3, x.v4
- for len(b) >= 32 {
- v1 = round(v1, u64(b[0:8:len(b)]))
- v2 = round(v2, u64(b[8:16:len(b)]))
- v3 = round(v3, u64(b[16:24:len(b)]))
- v4 = round(v4, u64(b[24:32:len(b)]))
- b = b[32:len(b):len(b)]
- }
- x.v1, x.v2, x.v3, x.v4 = v1, v2, v3, v4
- return b
-}