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 (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64" 27 * @library / 28 * @modules jdk.vm.ci/jdk.vm.ci.hotspot 29 * jdk.vm.ci/jdk.vm.ci.meta 30 * jdk.vm.ci/jdk.vm.ci.code 31 * jdk.vm.ci/jdk.vm.ci.code.site 32 * jdk.vm.ci/jdk.vm.ci.common 33 * jdk.vm.ci/jdk.vm.ci.runtime 34 * jdk.vm.ci/jdk.vm.ci.amd64 35 * jdk.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 jdk.vm.ci.code.test.MaxOopMapStackOffsetTest 38 */ 39 40 package jdk.vm.ci.code.test; 41 42 import org.junit.Test; 43 44 import jdk.vm.ci.code.Location; 45 import jdk.vm.ci.code.Register; 46 import jdk.vm.ci.common.JVMCIError; 47 import jdk.vm.ci.meta.JavaConstant; 48 import jdk.vm.ci.meta.JavaKind; 49 50 public class MaxOopMapStackOffsetTest extends DebugInfoTest { 51 52 public static int pass() { 53 return 42; 54 } 55 56 public static int fail() { 57 return 42; 58 } 59 60 private void test(String name, int offset) { 61 Location location = Location.stack(offset); 62 DebugInfoCompiler compiler = (asm, values) -> { 63 asm.growFrame(offset); 64 Register v = asm.emitLoadInt(0); 65 asm.emitIntToStack(v); 66 values[0] = JavaConstant.forInt(42); 67 return null; 68 }; 69 test(compiler, getMethod(name), 2, new Location[]{location}, new Location[1], new int[]{4}, JavaKind.Int); 70 } 71 72 private int maxOffset() { 73 return config.maxOopMapStackOffset; 74 } 75 76 private int wordSize() { 77 return config.heapWordSize; 78 } 79 80 @Test(expected = JVMCIError.class) 81 public void failTooLargeOffset() { 82 // This should throw a JVMCIError during installation because the offset is too large. 83 test("fail", maxOffset() + wordSize()); 84 } 85 86 @Test 87 public void passWithLargeOffset() { 88 test("pass", maxOffset()); 89 } 90 }