--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.verifier/src/org/graalvm/compiler/replacements/verifier/GeneratedFoldPlugin.java 2017-02-15 17:09:00.407839092 -0800 @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package org.graalvm.compiler.replacements.verifier; + +import java.io.PrintWriter; +import java.util.List; +import java.util.Set; +import java.util.TreeSet; + +import javax.annotation.processing.ProcessingEnvironment; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.Modifier; +import javax.lang.model.element.TypeElement; +import javax.lang.model.element.VariableElement; +import javax.lang.model.type.DeclaredType; +import javax.lang.model.type.TypeMirror; + +import org.graalvm.compiler.api.replacements.Fold; +import org.graalvm.compiler.api.replacements.Fold.InjectedParameter; +import org.graalvm.compiler.replacements.verifier.InjectedDependencies.WellKnownDependency; + +/** + * Create graph builder plugins for {@link Fold} methods. + */ +public class GeneratedFoldPlugin extends GeneratedPlugin { + + public GeneratedFoldPlugin(ExecutableElement intrinsicMethod) { + super(intrinsicMethod); + } + + private static TypeMirror stringType(ProcessingEnvironment env) { + return env.getElementUtils().getTypeElement("java.lang.String").asType(); + } + + @Override + public void extraImports(Set imports) { + imports.add("jdk.vm.ci.meta.JavaConstant"); + imports.add("jdk.vm.ci.meta.JavaKind"); + imports.add("org.graalvm.compiler.nodes.ConstantNode"); + } + + @Override + protected InjectedDependencies createExecute(ProcessingEnvironment env, PrintWriter out) { + InjectedDependencies deps = new InjectedDependencies(); + List params = intrinsicMethod.getParameters(); + + int argCount = 0; + Object receiver; + if (intrinsicMethod.getModifiers().contains(Modifier.STATIC)) { + receiver = intrinsicMethod.getEnclosingElement(); + } else { + receiver = "arg0"; + TypeElement type = (TypeElement) intrinsicMethod.getEnclosingElement(); + constantArgument(env, out, deps, argCount, type.asType(), argCount); + argCount++; + } + + int firstArg = argCount; + for (VariableElement param : params) { + if (param.getAnnotation(InjectedParameter.class) == null) { + constantArgument(env, out, deps, argCount, param.asType(), argCount); + } else { + out.printf(" assert checkInjectedArgument(b, args[%d], targetMethod);\n", argCount); + out.printf(" %s arg%d = %s;\n", param.asType(), argCount, deps.use(env, (DeclaredType) param.asType())); + } + argCount++; + } + + Set suppressWarnings = new TreeSet<>(); + if (intrinsicMethod.getAnnotation(Deprecated.class) != null) { + suppressWarnings.add("deprecation"); + } + if (hasRawtypeWarning(intrinsicMethod.getReturnType())) { + suppressWarnings.add("rawtypes"); + } + for (VariableElement param : params) { + if (hasUncheckedWarning(param.asType())) { + suppressWarnings.add("unchecked"); + } + } + if (suppressWarnings.size() > 0) { + out.printf(" @SuppressWarnings({"); + String sep = ""; + for (String suppressWarning : suppressWarnings) { + out.printf("%s\"%s\"", sep, suppressWarning); + sep = ", "; + } + out.printf("})\n"); + } + + out.printf(" %s result = %s.%s(", getErasedType(intrinsicMethod.getReturnType()), receiver, intrinsicMethod.getSimpleName()); + if (argCount > firstArg) { + out.printf("arg%d", firstArg); + for (int i = firstArg + 1; i < argCount; i++) { + out.printf(", arg%d", i); + } + } + out.printf(");\n"); + + TypeMirror returnType = intrinsicMethod.getReturnType(); + switch (returnType.getKind()) { + case BOOLEAN: + out.printf(" JavaConstant constant = JavaConstant.forInt(result ? 1 : 0);\n"); + break; + case BYTE: + case SHORT: + case CHAR: + case INT: + out.printf(" JavaConstant constant = JavaConstant.forInt(result);\n"); + break; + case LONG: + out.printf(" JavaConstant constant = JavaConstant.forLong(result);\n"); + break; + case FLOAT: + out.printf(" JavaConstant constant = JavaConstant.forFloat(result);\n"); + break; + case DOUBLE: + out.printf(" JavaConstant constant = JavaConstant.forDouble(result);\n"); + break; + case ARRAY: + case TYPEVAR: + case DECLARED: + if (returnType.equals(stringType(env))) { + out.printf(" JavaConstant constant = %s.forString(result);\n", deps.use(WellKnownDependency.CONSTANT_REFLECTION)); + } else { + out.printf(" JavaConstant constant = %s.forObject(result);\n", deps.use(WellKnownDependency.SNIPPET_REFLECTION)); + } + break; + default: + throw new IllegalArgumentException(returnType.toString()); + } + + out.printf(" ConstantNode node = ConstantNode.forConstant(constant, %s, %s);\n", deps.use(WellKnownDependency.META_ACCESS), deps.use(WellKnownDependency.STRUCTURED_GRAPH)); + out.printf(" b.push(JavaKind.%s, node);\n", getReturnKind(intrinsicMethod)); + out.printf(" return true;\n"); + + return deps; + } +}