1 /* 2 * Copyright (c) 2016, 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 * @requires vm.jvmci & (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9") 27 * @library / 28 * @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot 29 * jdk.internal.vm.ci/jdk.vm.ci.meta 30 * jdk.internal.vm.ci/jdk.vm.ci.code 31 * jdk.internal.vm.ci/jdk.vm.ci.code.site 32 * jdk.internal.vm.ci/jdk.vm.ci.common 33 * jdk.internal.vm.ci/jdk.vm.ci.runtime 34 * jdk.internal.vm.ci/jdk.vm.ci.amd64 35 * jdk.internal.vm.ci/jdk.vm.ci.sparc 36 * @compile CodeInstallationTest.java DebugInfoTest.java TestAssembler.java TestHotSpotVMConfig.java amd64/AMD64TestAssembler.java sparc/SPARCTestAssembler.java 37 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -Djvmci.Compiler=null jdk.vm.ci.code.test.MaxOopMapStackOffsetTest 38 */ 39 40 package jdk.vm.ci.code.test; 41 42 import jdk.vm.ci.code.Location; 43 import jdk.vm.ci.code.Register; 44 import jdk.vm.ci.common.JVMCIError; 45 import jdk.vm.ci.meta.JavaConstant; 46 import jdk.vm.ci.meta.JavaKind; 47 import org.junit.Test; 48 49 public class MaxOopMapStackOffsetTest extends DebugInfoTest { 50 51 public static int pass() { 52 return 42; 53 } 54 55 public static int fail() { 56 return 42; 57 } 58 59 private void test(String name, int offset) { 60 Location location = Location.stack(offset); 61 DebugInfoCompiler compiler = (asm, values) -> { 62 asm.growFrame(offset); 63 Register v = asm.emitLoadInt(0); 64 asm.emitIntToStack(v); 65 values[0] = JavaConstant.forInt(42); 66 return null; 67 }; 68 test(compiler, getMethod(name), 2, new Location[]{location}, new Location[1], new int[]{4}, JavaKind.Int); 69 } 70 71 private int maxOffset() { 72 return config.maxOopMapStackOffset; 73 } 74 75 private int wordSize() { 76 return config.heapWordSize; 77 } 78 79 @Test(expected = JVMCIError.class) 80 public void failTooLargeOffset() { 81 // This should throw a JVMCIError during installation because the offset is too large. 82 test("fail", maxOffset() + wordSize()); 83 } 84 85 @Test 86 public void passWithLargeOffset() { 87 test("pass", maxOffset()); 88 } 89 }