| /* |
| * Copyright 2008 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 com.google.gwt.dev.jjs.impl.gflow.liveness; |
| |
| import com.google.gwt.dev.jjs.impl.gflow.Analysis; |
| import com.google.gwt.dev.jjs.impl.gflow.CfgAnalysisTestBase; |
| import com.google.gwt.dev.jjs.impl.gflow.cfg.Cfg; |
| import com.google.gwt.dev.jjs.impl.gflow.cfg.CfgEdge; |
| import com.google.gwt.dev.jjs.impl.gflow.cfg.CfgNode; |
| |
| /** |
| * |
| */ |
| public class LivenessAnalysisTest extends CfgAnalysisTestBase<LivenessAssumption> { |
| @Override |
| protected void setUp() throws Exception { |
| forward = false; |
| super.setUp(); |
| } |
| |
| public void testSingleStatement() throws Exception { |
| analyze("void", "int i = 1;").into( |
| "BLOCK -> [*]", |
| "STMT -> [*]", |
| "WRITE(i, 1) -> [*]", |
| "END"); |
| } |
| |
| public void testMultipleLinearStatements() throws Exception { |
| analyze("int", "int i = 1; int j = 2; int k = i * j; i = 3; j = 4; return i;").into( |
| "BLOCK -> [*]", |
| "STMT -> [*]", |
| "WRITE(i, 1) -> [* {i}]", |
| "STMT -> [* {i}]", |
| "WRITE(j, 2) -> [* {i, j}]", |
| "STMT -> [* {i, j}]", |
| "READ(i) -> [* {j}]", |
| "READ(j) -> [*]", |
| "WRITE(k, i * j) -> [*]", |
| "STMT -> [*]", |
| "WRITE(i, 3) -> [* {i}]", |
| "STMT -> [* {i}]", |
| "WRITE(j, 4) -> [* {i}]", |
| "STMT -> [* {i}]", |
| "READ(i) -> [*]", |
| "GOTO -> [*]", |
| "END"); |
| } |
| |
| public void testNonAsignmentWriteTest() throws Exception { |
| analyze("int", "int i = 1; i += 2; return i;").into( |
| "BLOCK -> [*]", |
| "STMT -> [*]", |
| "WRITE(i, 1) -> [* {i}]", |
| "STMT -> [* {i}]", |
| "READWRITE(i, null) -> [* {i}]", |
| "STMT -> [* {i}]", |
| "READ(i) -> [*]", |
| "GOTO -> [*]", |
| "END"); |
| } |
| |
| @Override |
| protected Analysis<CfgNode<?>, CfgEdge, Cfg, LivenessAssumption> createAnalysis() { |
| return new LivenessAnalysis(); |
| } |
| } |