[dev.simd] cmd/compile: generated codes for amd64 SIMD

This CL is generated by tool in CL 667155.

Change-Id: I3829d0d2c96fe7000e2dd025a3006f96957d777a
Reviewed-on: https://go-review.googlesource.com/c/go/+/675618
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Auto-Submit: Junyang Shao <shaojunyang@google.com>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

src/simd/simd_test.go

@@ -0,0 +1,165 @@
+// 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
+
+package simd_test
+
+import (
+	"simd"
+	"testing"
+)
+
+func TestType(t *testing.T) {
+	// Testing:
+	// - Defined as another struct's field is safe
+	// - Pointer is safe.
+	// - typedef is safe
+	// - type alias is safe
+	// - type conversion is safe
+	type alias = simd.Int32x4
+	type maskT simd.Mask32x4
+	type myStruct struct {
+		x alias
+		y *simd.Int32x4
+		z maskT
+	}
+	vals := [4]int32{1, 2, 3, 4}
+	v := myStruct{x: simd.LoadInt32x4(&vals)}
+	// masking elements 1 and 2.
+	maskv := [4]int32{-1, -1, 0, 0}
+	want := []int32{2, 4, 0, 0}
+	y := simd.LoadInt32x4(&vals)
+	v.y = &y
+
+	if !simd.HasAVX512BW() || !simd.HasAVX512VL() {
+		t.Skip("Test requires HasAVX512BW+VL, not available on this hardware")
+		return
+	}
+	v.z = maskT(simd.LoadInt32x4(&maskv).AsMask32x4())
+	*v.y = v.y.MaskedAdd(v.x, simd.Mask32x4(v.z))
+
+	got := [4]int32{}
+	v.y.Store(&got)
+	for i := range 4 {
+		if want[i] != got[i] {
+			t.Errorf("Result at %d incorrect: want %d, got %d", i, want[i], got[i])
+		}
+	}
+}
+
+func TestAdd(t *testing.T) {
+	xv := [4]int32{1, 2, 3, 4}
+	yv := [4]int32{5, 6, 7, 8}
+	want := []int32{6, 8, 10, 12}
+	x := simd.LoadInt32x4(&xv)
+	y := simd.LoadInt32x4(&yv)
+	x = x.Add(y)
+	got := [4]int32{}
+	x.Store(&got)
+	for i := range 4 {
+		if want[i] != got[i] {
+			t.Errorf("Result at %d incorrect: want %d, got %d", i, want[i], got[i])
+		}
+	}
+}
+
+func TestVectorConversion(t *testing.T) {
+	if !simd.HasAVX512BW() || !simd.HasAVX512VL() {
+		t.Skip("Test requires HasAVX512BW+VL, not available on this hardware")
+		return
+	}
+	xv := [4]int32{1, 2, 3, 4}
+	x := simd.LoadInt32x4(&xv)
+	xPromoted := x.AsInt64x2()
+	xPromotedDemoted := xPromoted.AsInt32x4()
+	got := [4]int32{}
+	xPromotedDemoted.Store(&got)
+	for i := range 4 {
+		if xv[i] != got[i] {
+			t.Errorf("Result at %d incorrect: want %d, got %d", i, xv[i], got[i])
+		}
+	}
+}
+
+func TestMaskConversion(t *testing.T) {
+	if !simd.HasAVX512BW() || !simd.HasAVX512VL() {
+		t.Skip("Test requires HasAVX512BW+VL, not available on this hardware")
+		return
+	}
+	v := [4]int32{1, 0, 1, 0}
+	x := simd.LoadInt32x4(&v)
+	var y simd.Int32x4
+	mask := y.Sub(x).AsMask32x4()
+	v = [4]int32{5, 6, 7, 8}
+	y = simd.LoadInt32x4(&v)
+	y = y.MaskedAdd(x, mask)
+	got := [4]int32{6, 0, 8, 0}
+	y.Store(&v)
+	for i := range 4 {
+		if v[i] != got[i] {
+			t.Errorf("Result at %d incorrect: want %d, got %d", i, v[i], got[i])
+		}
+	}
+}
+
+func TestMaskedAdd(t *testing.T) {
+	if !simd.HasAVX512BW() || !simd.HasAVX512VL() {
+		t.Skip("Test requires HasAVX512BW+VL, not available on this hardware")
+		return
+	}
+	xv := [4]int32{1, 2, 3, 4}
+	yv := [4]int32{5, 6, 7, 8}
+	// masking elements 1 and 2.
+	maskv := [4]int32{-1, -1, 0, 0}
+	want := []int32{6, 8, 0, 0}
+	x := simd.LoadInt32x4(&xv)
+	y := simd.LoadInt32x4(&yv)
+	mask := simd.LoadInt32x4(&maskv).AsMask32x4()
+	x = x.MaskedAdd(y, mask)
+	got := [4]int32{}
+	x.Store(&got)
+	for i := range 4 {
+		if want[i] != got[i] {
+			t.Errorf("Result at %d incorrect: want %d, got %d", i, want[i], got[i])
+		}
+	}
+}
+
+func TestCompare(t *testing.T) {
+	xv := [4]int32{5, 1, 5, 3}
+	yv := [4]int32{3, 3, 3, 3}
+	want := []int32{8, 0, 8, 0}
+	x := simd.LoadInt32x4(&xv)
+	y := simd.LoadInt32x4(&yv)
+	if !simd.HasAVX512BW() {
+		t.Skip("Test requires HasAVX512BW, not available on this hardware")
+		return
+	}
+	mask := x.Greater(y)
+	x = x.MaskedAdd(y, mask)
+	got := [4]int32{}
+	x.Store(&got)
+	for i := range 4 {
+		if want[i] != got[i] {
+			t.Errorf("Result at %d incorrect: want %d, got %d", i, want[i], got[i])
+		}
+	}
+}
+
+func TestSub(t *testing.T) {
+	xv := [4]int32{5, 5, 5, 3}
+	yv := [4]int32{3, 3, 3, 3}
+	want := []int32{2, 2, 2, 0}
+	x := simd.LoadInt32x4(&xv)
+	y := simd.LoadInt32x4(&yv)
+	x = x.Sub(y)
+	got := [4]int32{}
+	x.Store(&got)
+	for i := range 4 {
+		if want[i] != got[i] {
+			t.Errorf("Result at %d incorrect: want %d, got %d", i, want[i], got[i])
+		}
+	}
+}