| /* |
| * 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; |
| |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.dev.jjs.ast.JMethod; |
| import com.google.gwt.dev.jjs.ast.JProgram; |
| |
| /** |
| * Tests {@link PostOptimizationCompoundAssignmentNormalizer}. |
| */ |
| public class PostOptimizationCompoundAssignmentNormalizerTest |
| extends OptimizerTestBase { |
| |
| public void testIntegralFloatCoercion() throws Exception { |
| // long op= float |
| optimize("void", "long x=2L; float d=3; x += d;").into( |
| "long x=2L; float d=3; x = (long)((float)x + d);"); |
| // long op= long |
| optimize("void", "long x=2L; long d=3L; x += d;").into( |
| "long x=2L; long d=3L; x = x + d;"); |
| // don't touch int op= int |
| optimize("void", "int x=2; int d=3; x += d;").into( |
| "int x=2; int d=3; x += d;"); |
| // don't touch, integral types with lhs wider than rhs |
| optimize("void", "int x=2; short d=3; x += d;").into( |
| "int x=2; short d=3; x += d;"); |
| // different integral types, but should narrow result |
| optimize("void", "int x=2; short d=3; d += x;").into( |
| "int x=2; short d=3; d = (short)(d + x);"); |
| // integral with long, should break up |
| optimize("void", "int x=2; long d=3L; x += d;").into( |
| "int x=2; long d=3L; x = (int)((long)x + d);"); |
| // integral with float |
| optimize("void", "int x=2; float d=3.0f; x += d;").into( |
| "int x=2; float d=3.0f; x = (int)(x + d);"); |
| // integral with double |
| optimize("void", "int x=2; double d=3.0; x += d;").into( |
| "int x=2; double d=3.0; x = (int)(x + d);"); |
| // float and double, don't touch |
| optimize("void", "float x=2; double d=3.0; x += d;").into( |
| "float x=2; double d=3.0; x += d;"); |
| } |
| |
| @Override |
| protected boolean doOptimizeMethod(TreeLogger logger, JProgram program, JMethod method) { |
| PostOptimizationCompoundAssignmentNormalizer.exec(program); |
| LongCastNormalizer.exec(program); |
| return true; |
| } |
| } |