1 files changed, 147 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/reflectdata/alg_test.go b/src/cmd/compile/internal/reflectdata/alg_test.go
new file mode 100644
index 0000000..38fb974
--- /dev/null
+++ b/src/cmd/compile/internal/reflectdata/alg_test.go
@@ -0,0 +1,147 @@
+// Copyright 2021 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.
+
+package reflectdata_test
+
+import (
+	"testing"
+)
+
+func BenchmarkEqArrayOfStrings5(b *testing.B) {
+	var a [5]string
+	var c [5]string
+
+	for i := 0; i < 5; i++ {
+		a[i] = "aaaa"
+		c[i] = "cccc"
+	}
+
+	for j := 0; j < b.N; j++ {
+		_ = a == c
+	}
+}
+
+func BenchmarkEqArrayOfStrings64(b *testing.B) {
+	var a [64]string
+	var c [64]string
+
+	for i := 0; i < 64; i++ {
+		a[i] = "aaaa"
+		c[i] = "cccc"
+	}
+
+	for j := 0; j < b.N; j++ {
+		_ = a == c
+	}
+}
+
+func BenchmarkEqArrayOfStrings1024(b *testing.B) {
+	var a [1024]string
+	var c [1024]string
+
+	for i := 0; i < 1024; i++ {
+		a[i] = "aaaa"
+		c[i] = "cccc"
+	}
+
+	for j := 0; j < b.N; j++ {
+		_ = a == c
+	}
+}
+
+func BenchmarkEqArrayOfFloats5(b *testing.B) {
+	var a [5]float32
+	var c [5]float32
+
+	for i := 0; i < b.N; i++ {
+		_ = a == c
+	}
+}
+
+func BenchmarkEqArrayOfFloats64(b *testing.B) {
+	var a [64]float32
+	var c [64]float32
+
+	for i := 0; i < b.N; i++ {
+		_ = a == c
+	}
+}
+
+func BenchmarkEqArrayOfFloats1024(b *testing.B) {
+	var a [1024]float32
+	var c [1024]float32
+
+	for i := 0; i < b.N; i++ {
+		_ = a == c
+	}
+}
+
+func BenchmarkEqArrayOfStructsEq(b *testing.B) {
+	type T2 struct {
+		a string
+		b int
+	}
+	const size = 1024
+	var (
+		str1 = "foobar"
+
+		a [size]T2
+		c [size]T2
+	)
+
+	for i := 0; i < size; i++ {
+		a[i].a = str1
+		c[i].a = str1
+	}
+
+	b.ResetTimer()
+	for j := 0; j < b.N; j++ {
+		_ = a == c
+	}
+}
+
+func BenchmarkEqArrayOfStructsNotEq(b *testing.B) {
+	type T2 struct {
+		a string
+		b int
+	}
+	const size = 1024
+	var (
+		str1 = "foobar"
+		str2 = "foobarz"
+
+		a [size]T2
+		c [size]T2
+	)
+
+	for i := 0; i < size; i++ {
+		a[i].a = str1
+		c[i].a = str1
+	}
+	c[len(c)-1].a = str2
+
+	b.ResetTimer()
+	for j := 0; j < b.N; j++ {
+		_ = a == c
+	}
+}
+
+const size = 16
+
+type T1 struct {
+	a [size]byte
+}
+
+func BenchmarkEqStruct(b *testing.B) {
+	x, y := T1{}, T1{}
+	x.a = [size]byte{1, 2, 3, 4, 5, 6, 7, 8}
+	y.a = [size]byte{2, 3, 4, 5, 6, 7, 8, 9}
+
+	for i := 0; i < b.N; i++ {
+		f := x == y
+		if f {
+			println("hello")
+		}
+	}
+}