optimistic_recompilation.js revision 949:fca4db1360f7 
1/*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**
25 * Ask Debug for an event log of favourable events instead of using --log flags printing to screen
26 * @test
27 * @bug 8037086,8038398
28 * @fork
29 * @option -Dnashorn.debug=true
30 * @option --log=recompile:quiet
31 * @option --optimistic-types=true
32 */
33
34var forName       = java.lang.Class["forName(String)"];
35var RuntimeEvent  = forName("jdk.nashorn.internal.runtime.events.RuntimeEvent").static;
36var getValue      = RuntimeEvent.class.getMethod("getValue");
37var RewriteException = forName("jdk.nashorn.internal.runtime.RewriteException").static;
38var getReturnType    = RewriteException.class.getMethod("getReturnType");
39var RecompilationEvent = forName("jdk.nashorn.internal.runtime.events.RecompilationEvent").static;
40var getReturnValue     = RecompilationEvent.class.getMethod("getReturnValue");
41var setReturnTypeAndValue = [];
42var expectedValues = [];
43
44function checkExpectedRecompilation(f, expectedValues, testCase) {
45    Debug.clearRuntimeEvents();
46    print(f());
47    events = Debug.getRuntimeEvents();
48    //make sure we got runtime events
49    print("events = " + (events.toString().indexOf("RuntimeEvent") != -1));
50    if (events.length ==  expectedValues.length) {
51        for (var i in events) {
52            var e = events[i];
53            var returnValue = getReturnValue.invoke(e);
54            if (typeof returnValue != 'undefined') {
55            setReturnTypeAndValue[i] = [getReturnType.invoke(getValue.invoke(e)), returnValue];
56            } else {
57                returnValue = "undefined";
58                setReturnTypeAndValue[i] = [getReturnType.invoke(getValue.invoke(e)), returnValue];
59            }
60            if (!setReturnTypeAndValue[i].toString().equals(expectedValues[i].toString())) {
61                fail("The return values are not as expected. Expected value: " + expectedValues[i] + " and got: " + setReturnTypeAndValue[i] + " in test case: " + f);
62            }
63        }
64    } else {
65        fail("Number of Deoptimizing recompilation is not correct, expected: " + expectedValues.length + " and found: " + events.length + " in test case: " + f);
66    }
67}
68
69checkExpectedRecompilation(function divisionByZeroTest() {var x = { a: 2, b:1 }; x.a = Number.POSITIVE_INFINITY; x.b = 0; print(x.a/x.b); return 1;},
70                           expectedValues =[['double', 'Infinity']]);
71checkExpectedRecompilation(function divisionWithRemainderTest() {var x = { a: 7, b:2 }; print(x.a/x.b); return 1;}, expectedValues =[['double', '3.5']]);
72checkExpectedRecompilation(function infinityMultiplicationTest() {var x = { a: Number.POSITIVE_INFINITY, b: Number.POSITIVE_INFINITY}; print(x.a*x.b); return 1;},
73                           expectedValues =[['double', 'Infinity']]);
74checkExpectedRecompilation(function maxValueMultiplicationTest() {var x = { a: Number.MAX_VALUE, b: Number.MAX_VALUE}; print(x.a*x.b); return 1;},
75                           expectedValues =[['double', '1.7976931348623157e+308']]);
76checkExpectedRecompilation(function divisionByInfinityTest() {var x = { a: -1, b: Number.POSITIVE_INFINITY}; print(x.a/x.b); return 1;},
77                           expectedValues =[['double', 'Infinity']]);
78checkExpectedRecompilation(function divisionByStringTest() {var x = { a: Number.POSITIVE_INFINITY, b: 'Hello'}; print(x.a/x.b); return 1;},
79                           expectedValues =[['double', 'Infinity']]);
80checkExpectedRecompilation(function nestedFunctionTest() {var a=3,b,c; function f() {var x = 2, y =1; function g(){var y = x; var z = a; z = x*y; print(a*b)} g()}f(); return 1;},
81                           expectedValues =[['object', 'undefined']]);
82checkExpectedRecompilation(function functionTest(a,b,c) { d = (a + b) * c; print(d); return 1;}, expectedValues =[['double', 'NaN']]);
83checkExpectedRecompilation(function andTest(a,b) { d = a && b; print(d); return 1;}, expectedValues =[['object', 'undefined']]);
84