1 /* 2 * Copyright (c) 2014, 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 package org.graalvm.compiler.hotspot.replacements; 26 27 import static org.graalvm.compiler.replacements.SnippetTemplate.DEFAULT_REPLACER; 28 import static org.graalvm.compiler.replacements.nodes.CStringConstant.cstring; 29 30 import org.graalvm.compiler.api.replacements.Snippet; 31 import org.graalvm.compiler.api.replacements.Snippet.ConstantParameter; 32 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; 33 import org.graalvm.compiler.debug.DebugHandlersFactory; 34 import org.graalvm.compiler.graph.Node.ConstantNodeParameter; 35 import org.graalvm.compiler.graph.Node.NodeIntrinsic; 36 import org.graalvm.compiler.hotspot.meta.HotSpotProviders; 37 import org.graalvm.compiler.hotspot.nodes.StubStartNode; 38 import org.graalvm.compiler.nodes.StructuredGraph; 39 import org.graalvm.compiler.nodes.extended.ForeignCallNode; 40 import org.graalvm.compiler.nodes.spi.LoweringTool; 41 import org.graalvm.compiler.options.OptionValues; 42 import org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates; 43 import org.graalvm.compiler.replacements.SnippetTemplate.Arguments; 44 import org.graalvm.compiler.replacements.SnippetTemplate.SnippetInfo; 45 import org.graalvm.compiler.replacements.Snippets; 46 import org.graalvm.compiler.replacements.nodes.AssertionNode; 47 import org.graalvm.compiler.word.Word; 48 49 import jdk.vm.ci.code.TargetDescription; 50 51 public class AssertionSnippets implements Snippets { 52 53 /** 54 * This call can only be used with true for the "vmError" parameter, so that it can be 55 * configured to be a leaf method. 56 */ 57 public static final ForeignCallDescriptor ASSERTION_VM_MESSAGE_C = new ForeignCallDescriptor("assertionVmMessageC", void.class, boolean.class, Word.class, long.class, long.class, long.class); 58 59 @Snippet 60 public static void assertion(boolean condition, @ConstantParameter String message) { 61 if (!condition) { 62 vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L); 63 } 64 } 65 66 @Snippet 67 public static void stubAssertion(boolean condition, @ConstantParameter String message) { 68 if (!condition) { 69 vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L); 70 } 71 } 72 73 @NodeIntrinsic(ForeignCallNode.class) 74 static native void vmMessageC(@ConstantNodeParameter ForeignCallDescriptor stubPrintfC, boolean vmError, Word format, long v1, long v2, long v3); 75 76 public static class Templates extends AbstractTemplates { 77 78 private final SnippetInfo assertion = snippet(AssertionSnippets.class, "assertion"); 79 private final SnippetInfo stubAssertion = snippet(AssertionSnippets.class, "stubAssertion"); 80 81 public Templates(OptionValues options, Iterable<DebugHandlersFactory> factories, HotSpotProviders providers, TargetDescription target) { 82 super(options, factories, providers, providers.getSnippetReflection(), target); 83 } 84 85 public void lower(AssertionNode assertionNode, LoweringTool tool) { 86 StructuredGraph graph = assertionNode.graph(); 87 Arguments args = new Arguments(graph.start() instanceof StubStartNode ? stubAssertion : assertion, graph.getGuardsStage(), tool.getLoweringStage()); 88 args.add("condition", assertionNode.condition()); 89 args.addConst("message", "failed runtime assertion in snippet/stub: " + assertionNode.message() + " (" + graph.method() + ")"); 90 91 template(assertionNode, args).instantiate(providers.getMetaAccess(), assertionNode, DEFAULT_REPLACER, args); 92 } 93 } 94 }