1 /* 2 * Copyright (c) 2014, 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 package org.graalvm.compiler.hotspot.replacements; 24 25 import static org.graalvm.compiler.replacements.SnippetTemplate.DEFAULT_REPLACER; 26 import static org.graalvm.compiler.replacements.nodes.CStringConstant.cstring; 27 28 import org.graalvm.compiler.api.replacements.Snippet; 29 import org.graalvm.compiler.api.replacements.Snippet.ConstantParameter; 30 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; 31 import org.graalvm.compiler.graph.Node.ConstantNodeParameter; 32 import org.graalvm.compiler.graph.Node.NodeIntrinsic; 33 import org.graalvm.compiler.hotspot.meta.HotSpotProviders; 34 import org.graalvm.compiler.hotspot.nodes.StubStartNode; 35 import org.graalvm.compiler.nodes.StructuredGraph; 36 import org.graalvm.compiler.nodes.extended.ForeignCallNode; 37 import org.graalvm.compiler.nodes.spi.LoweringTool; 38 import org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates; 39 import org.graalvm.compiler.replacements.SnippetTemplate.Arguments; 40 import org.graalvm.compiler.replacements.SnippetTemplate.SnippetInfo; 41 import org.graalvm.compiler.replacements.Snippets; 42 import org.graalvm.compiler.replacements.nodes.AssertionNode; 43 import org.graalvm.compiler.word.Word; 44 45 import jdk.vm.ci.code.TargetDescription; 46 47 public class AssertionSnippets implements Snippets { 48 49 /** 50 * This call can only be used with true for the "vmError" parameter, so that it can be 51 * configured to be a leaf method. 52 */ 53 public static final ForeignCallDescriptor ASSERTION_VM_MESSAGE_C = new ForeignCallDescriptor("assertionVmMessageC", void.class, boolean.class, Word.class, long.class, long.class, long.class); 54 55 @Snippet 56 public static void assertion(boolean value, @ConstantParameter String message) { 57 if (!value) { 58 vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L); 59 } 60 } 61 62 @Snippet 63 public static void stubAssertion(boolean value, @ConstantParameter String message) { 64 if (!value) { 65 vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L); 66 } 67 } 68 69 @NodeIntrinsic(ForeignCallNode.class) 70 static native void vmMessageC(@ConstantNodeParameter ForeignCallDescriptor stubPrintfC, boolean vmError, Word format, long v1, long v2, long v3); 71 72 public static class Templates extends AbstractTemplates { 73 74 private final SnippetInfo assertion = snippet(AssertionSnippets.class, "assertion"); 75 private final SnippetInfo stubAssertion = snippet(AssertionSnippets.class, "stubAssertion"); 76 77 public Templates(HotSpotProviders providers, TargetDescription target) { 78 super(providers, providers.getSnippetReflection(), target); 79 } 80 81 public void lower(AssertionNode assertionNode, LoweringTool tool) { 82 StructuredGraph graph = assertionNode.graph(); 83 Arguments args = new Arguments(graph.start() instanceof StubStartNode ? stubAssertion : assertion, graph.getGuardsStage(), tool.getLoweringStage()); 84 args.add("value", assertionNode.value()); 85 args.addConst("message", "failed runtime assertion in snippet/stub: " + assertionNode.message() + " (" + graph.method() + ")"); 86 87 template(args).instantiate(providers.getMetaAccess(), assertionNode, DEFAULT_REPLACER, args); 88 } 89 } 90 }