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+/*
+ * Copyright (C) 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package benchmarks.regression;
+
+import com.google.caliper.Param;
+import com.google.caliper.Runner;
+import com.google.caliper.SimpleBenchmark;
+
+public class IntConstantMultiplicationBenchmark extends SimpleBenchmark {
+ public int timeMultiplyIntByConstant6(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result *= 6;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant7(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result *= 7;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant8(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result *= 8;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant8_Shift(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result <<= 3;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant10(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result *= 10;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant10_Shift(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result = (result + (result << 2)) << 1;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant2047(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result *= 2047;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant2048(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result *= 2048;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByConstant2049(int reps) {
+ int result = 1;
+ for (int i = 0; i < reps; ++i) {
+ result *= 2049;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByVariable10(int reps) {
+ int result = 1;
+ int factor = 10;
+ for (int i = 0; i < reps; ++i) {
+ result *= factor;
+ }
+ return result;
+ }
+ public int timeMultiplyIntByVariable8(int reps) {
+ int result = 1;
+ int factor = 8;
+ for (int i = 0; i < reps; ++i) {
+ result *= factor;
+ }
+ return result;
+ }
+}