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authorPaul Holzinger <pholzing@redhat.com>2021-12-15 15:18:02 +0100
committerPaul Holzinger <pholzing@redhat.com>2021-12-16 15:28:39 +0100
commit03a3fc37fe82800113a1c9043448acb2afa539a6 (patch)
tree216aae69ad45e33c18bd5af8eb37d8a16dae4050 /vendor/github.com/cespare/xxhash
parentd1c91c128ea32dae3e9c56c657ea57dfed9f6ad4 (diff)
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bump cobra to 1.3.0
This contains some fixes for the shell completion files. [NO NEW TESTS NEEDED] Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Diffstat (limited to 'vendor/github.com/cespare/xxhash')
-rw-r--r--vendor/github.com/cespare/xxhash/v2/.travis.yml8
-rw-r--r--vendor/github.com/cespare/xxhash/v2/README.md6
-rw-r--r--vendor/github.com/cespare/xxhash/v2/xxhash.go1
-rw-r--r--vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s62
-rw-r--r--vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go53
5 files changed, 67 insertions, 63 deletions
diff --git a/vendor/github.com/cespare/xxhash/v2/.travis.yml b/vendor/github.com/cespare/xxhash/v2/.travis.yml
deleted file mode 100644
index c516ea88d..000000000
--- a/vendor/github.com/cespare/xxhash/v2/.travis.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-language: go
-go:
- - "1.x"
- - master
-env:
- - TAGS=""
- - TAGS="-tags purego"
-script: go test $TAGS -v ./...
diff --git a/vendor/github.com/cespare/xxhash/v2/README.md b/vendor/github.com/cespare/xxhash/v2/README.md
index 2fd8693c2..792b4a60b 100644
--- a/vendor/github.com/cespare/xxhash/v2/README.md
+++ b/vendor/github.com/cespare/xxhash/v2/README.md
@@ -1,7 +1,7 @@
# xxhash
-[![GoDoc](https://godoc.org/github.com/cespare/xxhash?status.svg)](https://godoc.org/github.com/cespare/xxhash)
-[![Build Status](https://travis-ci.org/cespare/xxhash.svg?branch=master)](https://travis-ci.org/cespare/xxhash)
+[![Go Reference](https://pkg.go.dev/badge/github.com/cespare/xxhash/v2.svg)](https://pkg.go.dev/github.com/cespare/xxhash/v2)
+[![Test](https://github.com/cespare/xxhash/actions/workflows/test.yml/badge.svg)](https://github.com/cespare/xxhash/actions/workflows/test.yml)
xxhash is a Go implementation of the 64-bit
[xxHash](http://cyan4973.github.io/xxHash/) algorithm, XXH64. This is a
@@ -64,4 +64,6 @@ $ go test -benchtime 10s -bench '/xxhash,direct,bytes'
- [InfluxDB](https://github.com/influxdata/influxdb)
- [Prometheus](https://github.com/prometheus/prometheus)
+- [VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics)
- [FreeCache](https://github.com/coocood/freecache)
+- [FastCache](https://github.com/VictoriaMetrics/fastcache)
diff --git a/vendor/github.com/cespare/xxhash/v2/xxhash.go b/vendor/github.com/cespare/xxhash/v2/xxhash.go
index db0b35fbe..15c835d54 100644
--- a/vendor/github.com/cespare/xxhash/v2/xxhash.go
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash.go
@@ -193,7 +193,6 @@ func (d *Digest) UnmarshalBinary(b []byte) error {
b, d.v4 = consumeUint64(b)
b, d.total = consumeUint64(b)
copy(d.mem[:], b)
- b = b[len(d.mem):]
d.n = int(d.total % uint64(len(d.mem)))
return nil
}
diff --git a/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s b/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s
index d580e32ae..be8db5bf7 100644
--- a/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s
@@ -6,7 +6,7 @@
// Register allocation:
// AX h
-// CX pointer to advance through b
+// SI pointer to advance through b
// DX n
// BX loop end
// R8 v1, k1
@@ -16,39 +16,39 @@
// R12 tmp
// R13 prime1v
// R14 prime2v
-// R15 prime4v
+// DI prime4v
-// round reads from and advances the buffer pointer in CX.
+// round reads from and advances the buffer pointer in SI.
// It assumes that R13 has prime1v and R14 has prime2v.
#define round(r) \
- MOVQ (CX), R12 \
- ADDQ $8, CX \
+ MOVQ (SI), R12 \
+ ADDQ $8, SI \
IMULQ R14, R12 \
ADDQ R12, r \
ROLQ $31, r \
IMULQ R13, r
// mergeRound applies a merge round on the two registers acc and val.
-// It assumes that R13 has prime1v, R14 has prime2v, and R15 has prime4v.
+// It assumes that R13 has prime1v, R14 has prime2v, and DI has prime4v.
#define mergeRound(acc, val) \
IMULQ R14, val \
ROLQ $31, val \
IMULQ R13, val \
XORQ val, acc \
IMULQ R13, acc \
- ADDQ R15, acc
+ ADDQ DI, acc
// func Sum64(b []byte) uint64
TEXT ·Sum64(SB), NOSPLIT, $0-32
// Load fixed primes.
MOVQ ·prime1v(SB), R13
MOVQ ·prime2v(SB), R14
- MOVQ ·prime4v(SB), R15
+ MOVQ ·prime4v(SB), DI
// Load slice.
- MOVQ b_base+0(FP), CX
+ MOVQ b_base+0(FP), SI
MOVQ b_len+8(FP), DX
- LEAQ (CX)(DX*1), BX
+ LEAQ (SI)(DX*1), BX
// The first loop limit will be len(b)-32.
SUBQ $32, BX
@@ -65,14 +65,14 @@ TEXT ·Sum64(SB), NOSPLIT, $0-32
XORQ R11, R11
SUBQ R13, R11
- // Loop until CX > BX.
+ // Loop until SI > BX.
blockLoop:
round(R8)
round(R9)
round(R10)
round(R11)
- CMPQ CX, BX
+ CMPQ SI, BX
JLE blockLoop
MOVQ R8, AX
@@ -100,16 +100,16 @@ noBlocks:
afterBlocks:
ADDQ DX, AX
- // Right now BX has len(b)-32, and we want to loop until CX > len(b)-8.
+ // Right now BX has len(b)-32, and we want to loop until SI > len(b)-8.
ADDQ $24, BX
- CMPQ CX, BX
+ CMPQ SI, BX
JG fourByte
wordLoop:
// Calculate k1.
- MOVQ (CX), R8
- ADDQ $8, CX
+ MOVQ (SI), R8
+ ADDQ $8, SI
IMULQ R14, R8
ROLQ $31, R8
IMULQ R13, R8
@@ -117,18 +117,18 @@ wordLoop:
XORQ R8, AX
ROLQ $27, AX
IMULQ R13, AX
- ADDQ R15, AX
+ ADDQ DI, AX
- CMPQ CX, BX
+ CMPQ SI, BX
JLE wordLoop
fourByte:
ADDQ $4, BX
- CMPQ CX, BX
+ CMPQ SI, BX
JG singles
- MOVL (CX), R8
- ADDQ $4, CX
+ MOVL (SI), R8
+ ADDQ $4, SI
IMULQ R13, R8
XORQ R8, AX
@@ -138,19 +138,19 @@ fourByte:
singles:
ADDQ $4, BX
- CMPQ CX, BX
+ CMPQ SI, BX
JGE finalize
singlesLoop:
- MOVBQZX (CX), R12
- ADDQ $1, CX
+ MOVBQZX (SI), R12
+ ADDQ $1, SI
IMULQ ·prime5v(SB), R12
XORQ R12, AX
ROLQ $11, AX
IMULQ R13, AX
- CMPQ CX, BX
+ CMPQ SI, BX
JL singlesLoop
finalize:
@@ -179,9 +179,9 @@ TEXT ·writeBlocks(SB), NOSPLIT, $0-40
MOVQ ·prime2v(SB), R14
// Load slice.
- MOVQ b_base+8(FP), CX
+ MOVQ b_base+8(FP), SI
MOVQ b_len+16(FP), DX
- LEAQ (CX)(DX*1), BX
+ LEAQ (SI)(DX*1), BX
SUBQ $32, BX
// Load vN from d.
@@ -199,7 +199,7 @@ blockLoop:
round(R10)
round(R11)
- CMPQ CX, BX
+ CMPQ SI, BX
JLE blockLoop
// Copy vN back to d.
@@ -208,8 +208,8 @@ blockLoop:
MOVQ R10, 16(AX)
MOVQ R11, 24(AX)
- // The number of bytes written is CX minus the old base pointer.
- SUBQ b_base+8(FP), CX
- MOVQ CX, ret+32(FP)
+ // The number of bytes written is SI minus the old base pointer.
+ SUBQ b_base+8(FP), SI
+ MOVQ SI, ret+32(FP)
RET
diff --git a/vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go b/vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go
index 53bf76efb..376e0ca2e 100644
--- a/vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go
@@ -6,41 +6,52 @@
package xxhash
import (
- "reflect"
"unsafe"
)
-// Notes:
+// In the future it's possible that compiler optimizations will make these
+// XxxString functions unnecessary by realizing that calls such as
+// Sum64([]byte(s)) don't need to copy s. See https://golang.org/issue/2205.
+// If that happens, even if we keep these functions they can be replaced with
+// the trivial safe code.
+
+// NOTE: The usual way of doing an unsafe string-to-[]byte conversion is:
//
-// See https://groups.google.com/d/msg/golang-nuts/dcjzJy-bSpw/tcZYBzQqAQAJ
-// for some discussion about these unsafe conversions.
+// var b []byte
+// bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
+// bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
+// bh.Len = len(s)
+// bh.Cap = len(s)
//
-// In the future it's possible that compiler optimizations will make these
-// unsafe operations unnecessary: https://golang.org/issue/2205.
+// Unfortunately, as of Go 1.15.3 the inliner's cost model assigns a high enough
+// weight to this sequence of expressions that any function that uses it will
+// not be inlined. Instead, the functions below use a different unsafe
+// conversion designed to minimize the inliner weight and allow both to be
+// inlined. There is also a test (TestInlining) which verifies that these are
+// inlined.
//
-// Both of these wrapper functions still incur function call overhead since they
-// will not be inlined. We could write Go/asm copies of Sum64 and Digest.Write
-// for strings to squeeze out a bit more speed. Mid-stack inlining should
-// eventually fix this.
+// See https://github.com/golang/go/issues/42739 for discussion.
// Sum64String computes the 64-bit xxHash digest of s.
// It may be faster than Sum64([]byte(s)) by avoiding a copy.
func Sum64String(s string) uint64 {
- var b []byte
- bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
- bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
- bh.Len = len(s)
- bh.Cap = len(s)
+ b := *(*[]byte)(unsafe.Pointer(&sliceHeader{s, len(s)}))
return Sum64(b)
}
// WriteString adds more data to d. It always returns len(s), nil.
// It may be faster than Write([]byte(s)) by avoiding a copy.
func (d *Digest) WriteString(s string) (n int, err error) {
- var b []byte
- bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
- bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
- bh.Len = len(s)
- bh.Cap = len(s)
- return d.Write(b)
+ d.Write(*(*[]byte)(unsafe.Pointer(&sliceHeader{s, len(s)})))
+ // d.Write always returns len(s), nil.
+ // Ignoring the return output and returning these fixed values buys a
+ // savings of 6 in the inliner's cost model.
+ return len(s), nil
+}
+
+// sliceHeader is similar to reflect.SliceHeader, but it assumes that the layout
+// of the first two words is the same as the layout of a string.
+type sliceHeader struct {
+ s string
+ cap int
}