diff options
Diffstat (limited to 'vendor/github.com/dolthub/swiss/bits_amd64.go')
-rw-r--r-- | vendor/github.com/dolthub/swiss/bits_amd64.go | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/vendor/github.com/dolthub/swiss/bits_amd64.go b/vendor/github.com/dolthub/swiss/bits_amd64.go deleted file mode 100644 index 8b91f57cf..000000000 --- a/vendor/github.com/dolthub/swiss/bits_amd64.go +++ /dev/null @@ -1,50 +0,0 @@ -// Copyright 2023 Dolthub, Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 && !nosimd - -package swiss - -import ( - "math/bits" - _ "unsafe" - - "github.com/dolthub/swiss/simd" -) - -const ( - groupSize = 16 - maxAvgGroupLoad = 14 -) - -type bitset uint16 - -func metaMatchH2(m *metadata, h h2) bitset { - b := simd.MatchMetadata((*[16]int8)(m), int8(h)) - return bitset(b) -} - -func metaMatchEmpty(m *metadata) bitset { - b := simd.MatchMetadata((*[16]int8)(m), empty) - return bitset(b) -} - -func nextMatch(b *bitset) (s uint32) { - s = uint32(bits.TrailingZeros16(uint16(*b))) - *b &= ^(1 << s) // clear bit |s| - return -} - -//go:linkname fastrand runtime.fastrand -func fastrand() uint32 |