1 /* 2 * Copyright (c) 2018, 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 * @test 26 * @bug 8186211 27 * @summary Tests various ldc, ldc_w, ldc2_w instructions of CONSTANT_Dynamic. 28 * @modules java.base/jdk.internal.misc 29 * @library /test/lib 30 * @compile CondyUseLDC_W.jasm 31 * @compile CondyBadLDC2_W.jasm 32 * @compile CondyBadLDC.jasm 33 * @run driver CondyLDCTest 34 */ 35 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.process.OutputAnalyzer; 38 import jdk.test.lib.compiler.InMemoryJavaCompiler; 39 40 public class CondyLDCTest { 41 public static void main(String args[]) throws Throwable { 42 // 1. Test a ldc_w instruction can be used with condy's which generate 43 // loadable constants of the following types: byte, char, short, float, integer, boolean. 44 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xverify:all", 45 "CondyUseLDC_W"); 46 OutputAnalyzer oa = new OutputAnalyzer(pb.start()); 47 oa.shouldNotContain("VerifyError"); 48 oa.shouldHaveExitValue(0); 49 50 // 2. Test ldc2_w of a condy which returns a dynamically generated 51 // float constant, generates a VerifyError. 52 pb = ProcessTools.createJavaProcessBuilder("-Xverify:all", 53 "CondyBadLDC2_W"); 54 oa = new OutputAnalyzer(pb.start()); 55 oa.shouldContain("java.lang.VerifyError: Illegal type at constant pool entry"); 56 oa.shouldContain("CondyBadLDC2_W.F()F @0: ldc2_w"); 57 oa.shouldHaveExitValue(1); 58 59 // 3. Test a ldc of a condy which returns a dynamically generated 60 // double constant, generates a VerifyError. 61 pb = ProcessTools.createJavaProcessBuilder("-Xverify:all", 62 "CondyBadLDC"); 63 oa = new OutputAnalyzer(pb.start()); 64 oa.shouldContain("java.lang.VerifyError: Illegal type at constant pool entry"); 65 oa.shouldContain("CondyBadLDC.D()D @0: ldc"); 66 oa.shouldHaveExitValue(1); 67 } 68 }