Исходники и презентации

lessons/strings/bce_optimization/bench_test.go

@@ -0,0 +1,39 @@
+package main
+
+import "testing"
+
+// go test -gcflags="-d=ssa/check_bce" -bench=. bench_test.go
+
+func process1(data string) []byte {
+	return []byte{
+		data[0], // Found IsInBounds
+		data[1], // Found IsInBounds
+		data[2], // Found IsInBounds
+		data[3], // Found IsInBounds
+	}
+}
+
+func process2(data string) []byte {
+	return []byte{
+		data[3], // Found IsInBounds
+		data[2],
+		data[1],
+		data[0],
+	}
+}
+
+var Result []byte
+
+func BenchmarkProcess1(b *testing.B) {
+	data := "Hello world"
+	for i := 0; i < b.N; i++ {
+		Result = process1(data)
+	}
+}
+
+func BenchmarkProcess2(b *testing.B) {
+	data := "Hello world"
+	for i := 0; i < b.N; i++ {
+		Result = process2(data)
+	}
+}