File size: 5,592 Bytes
04dc9f2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | // Copyright 2025 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.
//go:build goexperiment.simd && amd64
package archsimd
// ClearAVXUpperBits clears the high bits of Y0-Y15 and Z0-Z15 registers.
// It is intended for transitioning from AVX to SSE, eliminating the
// performance penalties caused by false dependencies.
//
// Note: in the future the compiler may automatically generate the
// instruction, making this function unnecessary.
//
// Asm: VZEROUPPER, CPU Feature: AVX
func ClearAVXUpperBits()
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int8x16) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int8x32) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int16x8) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int16x16) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int32x4) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int32x8) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int64x2) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Int64x4) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint8x16) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint8x32) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint16x8) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint16x16) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint32x4) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint32x8) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint64x2) IsZero() bool
// IsZero returns true if all elements of x are zeros.
//
// This method compiles to VPTEST x, x.
// x.And(y).IsZero() and x.AndNot(y).IsZero() will be optimized to VPTEST x, y.
//
// Asm: VPTEST, CPU Feature: AVX
func (x Uint64x4) IsZero() bool
// IsNaN returns a mask whose elements indicate whether the corresponding
// elements of x are NaN.
//
// Asm: VCMPPS, CPU Feature: AVX
func (x Float32x4) IsNaN() Mask32x4
// IsNaN returns a mask whose elements indicate whether the corresponding
// elements of x are NaN.
//
// Asm: VCMPPS, CPU Feature: AVX
func (x Float32x8) IsNaN() Mask32x8
// IsNaN returns a mask whose elements indicate whether the corresponding
// elements of x are NaN.
//
// Asm: VCMPPS, CPU Feature: AVX512
func (x Float32x16) IsNaN() Mask32x16
// IsNaN returns a mask whose elements indicate whether the corresponding
// elements of x are NaN.
//
// Asm: VCMPPD, CPU Feature: AVX
func (x Float64x2) IsNaN() Mask64x2
// IsNaN returns a mask whose elements indicate whether the corresponding
// elements of x are NaN.
//
// Asm: VCMPPD, CPU Feature: AVX
func (x Float64x4) IsNaN() Mask64x4
// IsNaN returns a mask whose elements indicate whether the corresponding
// elements of x are NaN.
//
// Asm: VCMPPD, CPU Feature: AVX512
func (x Float64x8) IsNaN() Mask64x8
|