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Diffstat (limited to 'src/simd/extra_amd64.go')
| -rw-r--r-- | src/simd/extra_amd64.go | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/simd/extra_amd64.go b/src/simd/extra_amd64.go new file mode 100644 index 0000000000..a7832e6a57 --- /dev/null +++ b/src/simd/extra_amd64.go @@ -0,0 +1,145 @@ +// 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 simd + +// 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 |