author | redestad |
Tue, 27 Feb 2018 21:05:07 +0100 | |
changeset 48993 | aef762ff9b23 |
parent 47753 | a2008587c13f |
child 49116 | ef9ddc426975 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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package java.lang.invoke; |
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import jdk.internal.org.objectweb.asm.ClassWriter; |
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import jdk.internal.org.objectweb.asm.Label; |
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import jdk.internal.org.objectweb.asm.MethodVisitor; |
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import jdk.internal.org.objectweb.asm.Opcodes; |
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import jdk.internal.org.objectweb.asm.Type; |
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import sun.invoke.util.VerifyAccess; |
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import sun.invoke.util.VerifyType; |
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import sun.invoke.util.Wrapper; |
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import sun.reflect.misc.ReflectUtil; |
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import java.io.File; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.lang.reflect.Modifier; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.HashMap; |
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import java.util.stream.Stream; |
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import static java.lang.invoke.LambdaForm.BasicType; |
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import static java.lang.invoke.LambdaForm.BasicType.*; |
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import static java.lang.invoke.LambdaForm.*; |
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import static java.lang.invoke.MethodHandleNatives.Constants.*; |
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import static java.lang.invoke.MethodHandleStatics.*; |
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/** |
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* Code generation backend for LambdaForm. |
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* <p> |
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* @author John Rose, JSR 292 EG |
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*/ |
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class InvokerBytecodeGenerator { |
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/** Define class names for convenience. */ |
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private static final String MH = "java/lang/invoke/MethodHandle"; |
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private static final String MHI = "java/lang/invoke/MethodHandleImpl"; |
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private static final String LF = "java/lang/invoke/LambdaForm"; |
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private static final String LFN = "java/lang/invoke/LambdaForm$Name"; |
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private static final String CLS = "java/lang/Class"; |
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private static final String OBJ = "java/lang/Object"; |
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private static final String OBJARY = "[Ljava/lang/Object;"; |
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private static final String LOOP_CLAUSES = MHI + "$LoopClauses"; |
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private static final String MHARY2 = "[[L" + MH + ";"; |
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private static final String LF_SIG = "L" + LF + ";"; |
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private static final String LFN_SIG = "L" + LFN + ";"; |
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private static final String LL_SIG = "(L" + OBJ + ";)L" + OBJ + ";"; |
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private static final String LLV_SIG = "(L" + OBJ + ";L" + OBJ + ";)V"; |
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private static final String CLASS_PREFIX = LF + "$"; |
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private static final String SOURCE_PREFIX = "LambdaForm$"; |
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|
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/** Name of its super class*/ |
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static final String INVOKER_SUPER_NAME = OBJ; |
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/** Name of new class */ |
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private final String className; |
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private final LambdaForm lambdaForm; |
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private final String invokerName; |
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private final MethodType invokerType; |
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/** Info about local variables in compiled lambda form */ |
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private int[] localsMap; // index |
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private Class<?>[] localClasses; // type |
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/** ASM bytecode generation. */ |
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private ClassWriter cw; |
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private MethodVisitor mv; |
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private static final MemberName.Factory MEMBERNAME_FACTORY = MemberName.getFactory(); |
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private static final Class<?> HOST_CLASS = LambdaForm.class; |
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/** Main constructor; other constructors delegate to this one. */ |
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private InvokerBytecodeGenerator(LambdaForm lambdaForm, int localsMapSize, |
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String className, String invokerName, MethodType invokerType) { |
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int p = invokerName.indexOf('.'); |
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if (p > -1) { |
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className = invokerName.substring(0, p); |
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invokerName = invokerName.substring(p + 1); |
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} |
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if (DUMP_CLASS_FILES) { |
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className = makeDumpableClassName(className); |
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} |
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this.className = className; |
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this.lambdaForm = lambdaForm; |
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this.invokerName = invokerName; |
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this.invokerType = invokerType; |
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this.localsMap = new int[localsMapSize+1]; // last entry of localsMap is count of allocated local slots |
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this.localClasses = new Class<?>[localsMapSize+1]; |
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} |
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/** For generating LambdaForm interpreter entry points. */ |
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private InvokerBytecodeGenerator(String className, String invokerName, MethodType invokerType) { |
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this(null, invokerType.parameterCount(), |
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className, invokerName, invokerType); |
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// Create an array to map name indexes to locals indexes. |
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for (int i = 0; i < localsMap.length; i++) { |
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localsMap[i] = invokerType.parameterSlotCount() - invokerType.parameterSlotDepth(i); |
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} |
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} |
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127 |
|
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128 |
/** For generating customized code for a single LambdaForm. */ |
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private InvokerBytecodeGenerator(String className, LambdaForm form, MethodType invokerType) { |
43893 | 130 |
this(className, form.lambdaName(), form, invokerType); |
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} |
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132 |
|
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133 |
/** For generating customized code for a single LambdaForm. */ |
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InvokerBytecodeGenerator(String className, String invokerName, |
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LambdaForm form, MethodType invokerType) { |
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this(form, form.names.length, |
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className, invokerName, invokerType); |
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// Create an array to map name indexes to locals indexes. |
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Name[] names = form.names; |
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140 |
for (int i = 0, index = 0; i < localsMap.length; i++) { |
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localsMap[i] = index; |
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if (i < names.length) { |
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BasicType type = names[i].type(); |
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index += type.basicTypeSlots(); |
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} |
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} |
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} |
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148 |
|
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149 |
/** instance counters for dumped classes */ |
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private static final HashMap<String,Integer> DUMP_CLASS_FILES_COUNTERS; |
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151 |
/** debugging flag for saving generated class files */ |
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private static final File DUMP_CLASS_FILES_DIR; |
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|
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static { |
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if (DUMP_CLASS_FILES) { |
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DUMP_CLASS_FILES_COUNTERS = new HashMap<>(); |
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157 |
try { |
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158 |
File dumpDir = new File("DUMP_CLASS_FILES"); |
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|
159 |
if (!dumpDir.exists()) { |
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160 |
dumpDir.mkdirs(); |
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|
161 |
} |
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162 |
DUMP_CLASS_FILES_DIR = dumpDir; |
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|
163 |
System.out.println("Dumping class files to "+DUMP_CLASS_FILES_DIR+"/..."); |
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164 |
} catch (Exception e) { |
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throw newInternalError(e); |
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166 |
} |
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167 |
} else { |
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168 |
DUMP_CLASS_FILES_COUNTERS = null; |
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DUMP_CLASS_FILES_DIR = null; |
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170 |
} |
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171 |
} |
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172 |
|
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173 |
private void maybeDump(final byte[] classFile) { |
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174 |
if (DUMP_CLASS_FILES) { |
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175 |
maybeDump(CLASS_PREFIX + className, classFile); |
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176 |
} |
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177 |
} |
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178 |
|
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|
179 |
// Also used from BoundMethodHandle |
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180 |
static void maybeDump(final String className, final byte[] classFile) { |
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|
181 |
if (DUMP_CLASS_FILES) { |
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|
182 |
java.security.AccessController.doPrivileged( |
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|
183 |
new java.security.PrivilegedAction<>() { |
13423
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|
184 |
public Void run() { |
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|
185 |
try { |
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|
186 |
String dumpName = className.replace('.','/'); |
13423
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|
187 |
File dumpFile = new File(DUMP_CLASS_FILES_DIR, dumpName+".class"); |
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|
188 |
System.out.println("dump: " + dumpFile); |
13423
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|
189 |
dumpFile.getParentFile().mkdirs(); |
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|
190 |
FileOutputStream file = new FileOutputStream(dumpFile); |
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|
191 |
file.write(classFile); |
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|
192 |
file.close(); |
17843fff200d
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|
193 |
return null; |
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|
194 |
} catch (IOException ex) { |
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|
195 |
throw newInternalError(ex); |
13423
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|
196 |
} |
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|
197 |
} |
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|
198 |
}); |
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|
199 |
} |
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parents:
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changeset
|
200 |
} |
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|
201 |
|
17843fff200d
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|
202 |
private static String makeDumpableClassName(String className) { |
17843fff200d
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parents:
diff
changeset
|
203 |
Integer ctr; |
17843fff200d
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changeset
|
204 |
synchronized (DUMP_CLASS_FILES_COUNTERS) { |
17843fff200d
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|
205 |
ctr = DUMP_CLASS_FILES_COUNTERS.get(className); |
17843fff200d
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changeset
|
206 |
if (ctr == null) ctr = 0; |
17843fff200d
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parents:
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changeset
|
207 |
DUMP_CLASS_FILES_COUNTERS.put(className, ctr+1); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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changeset
|
208 |
} |
17843fff200d
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parents:
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|
209 |
String sfx = ctr.toString(); |
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parents:
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|
210 |
while (sfx.length() < 3) |
17843fff200d
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parents:
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|
211 |
sfx = "0"+sfx; |
17843fff200d
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parents:
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|
212 |
className += sfx; |
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parents:
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|
213 |
return className; |
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|
214 |
} |
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|
215 |
|
17843fff200d
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|
216 |
class CpPatch { |
13610
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|
217 |
final int index; |
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|
218 |
final Object value; |
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|
219 |
CpPatch(int index, Object value) { |
13423
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|
220 |
this.index = index; |
17843fff200d
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|
221 |
this.value = value; |
17843fff200d
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|
222 |
} |
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|
223 |
public String toString() { |
40272
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|
224 |
return "CpPatch/index="+index+",value="+value; |
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|
225 |
} |
13423
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|
226 |
} |
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|
227 |
|
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|
228 |
private final ArrayList<CpPatch> cpPatches = new ArrayList<>(); |
13423
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|
229 |
|
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|
230 |
private int cph = 0; // for counting constant placeholders |
13423
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changeset
|
231 |
|
17843fff200d
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|
232 |
String constantPlaceholder(Object arg) { |
17843fff200d
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|
233 |
String cpPlaceholder = "CONSTANT_PLACEHOLDER_" + cph++; |
40272
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|
234 |
if (DUMP_CLASS_FILES) cpPlaceholder += " <<" + debugString(arg) + ">>"; |
6af4511ee5a4
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|
235 |
// TODO check if arg is already in the constant pool |
13423
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|
236 |
// insert placeholder in CP and remember the patch |
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|
237 |
int index = cw.newConst((Object) cpPlaceholder); |
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|
238 |
cpPatches.add(new CpPatch(index, arg)); |
13423
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|
239 |
return cpPlaceholder; |
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|
240 |
} |
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|
241 |
|
17843fff200d
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|
242 |
Object[] cpPatches(byte[] classFile) { |
17843fff200d
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|
243 |
int size = getConstantPoolSize(classFile); |
17843fff200d
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changeset
|
244 |
Object[] res = new Object[size]; |
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|
245 |
for (CpPatch p : cpPatches) { |
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|
246 |
if (p.index >= size) |
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|
247 |
throw new InternalError("in cpool["+size+"]: "+p+"\n"+Arrays.toString(Arrays.copyOf(classFile, 20))); |
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|
248 |
res[p.index] = p.value; |
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|
249 |
} |
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|
250 |
return res; |
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changeset
|
251 |
} |
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|
252 |
|
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|
253 |
private static String debugString(Object arg) { |
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changeset
|
254 |
if (arg instanceof MethodHandle) { |
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MethodHandle mh = (MethodHandle) arg; |
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MemberName member = mh.internalMemberName(); |
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257 |
if (member != null) |
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258 |
return member.toString(); |
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259 |
return mh.debugString(); |
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260 |
} |
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261 |
return arg.toString(); |
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262 |
} |
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263 |
|
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264 |
/** |
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265 |
* Extract the number of constant pool entries from a given class file. |
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266 |
* |
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267 |
* @param classFile the bytes of the class file in question. |
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268 |
* @return the number of entries in the constant pool. |
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|
269 |
*/ |
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270 |
private static int getConstantPoolSize(byte[] classFile) { |
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271 |
// The first few bytes: |
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272 |
// u4 magic; |
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273 |
// u2 minor_version; |
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274 |
// u2 major_version; |
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275 |
// u2 constant_pool_count; |
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276 |
return ((classFile[8] & 0xFF) << 8) | (classFile[9] & 0xFF); |
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277 |
} |
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278 |
|
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|
279 |
/** |
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|
280 |
* Extract the MemberName of a newly-defined method. |
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|
281 |
*/ |
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282 |
private MemberName loadMethod(byte[] classFile) { |
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|
283 |
Class<?> invokerClass = loadAndInitializeInvokerClass(classFile, cpPatches(classFile)); |
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284 |
return resolveInvokerMember(invokerClass, invokerName, invokerType); |
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|
285 |
} |
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|
286 |
|
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|
287 |
/** |
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|
288 |
* Define a given class as anonymous class in the runtime system. |
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|
289 |
*/ |
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|
290 |
private static Class<?> loadAndInitializeInvokerClass(byte[] classBytes, Object[] patches) { |
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|
291 |
Class<?> invokerClass = UNSAFE.defineAnonymousClass(HOST_CLASS, classBytes, patches); |
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|
292 |
UNSAFE.ensureClassInitialized(invokerClass); // Make sure the class is initialized; VM might complain. |
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|
293 |
return invokerClass; |
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|
294 |
} |
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|
295 |
|
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|
296 |
private static MemberName resolveInvokerMember(Class<?> invokerClass, String name, MethodType type) { |
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|
297 |
MemberName member = new MemberName(invokerClass, name, type, REF_invokeStatic); |
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|
298 |
try { |
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|
299 |
member = MEMBERNAME_FACTORY.resolveOrFail(REF_invokeStatic, member, HOST_CLASS, ReflectiveOperationException.class); |
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|
300 |
} catch (ReflectiveOperationException e) { |
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|
301 |
throw newInternalError(e); |
13423
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|
302 |
} |
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|
303 |
return member; |
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|
304 |
} |
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|
305 |
|
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|
306 |
/** |
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|
307 |
* Set up class file generation. |
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|
308 |
*/ |
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|
309 |
private ClassWriter classFilePrologue() { |
23918 | 310 |
final int NOT_ACC_PUBLIC = 0; // not ACC_PUBLIC |
13423
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|
311 |
cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + ClassWriter.COMPUTE_FRAMES); |
44591
b9bf065070fe
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|
312 |
cw.visit(Opcodes.V1_8, NOT_ACC_PUBLIC + Opcodes.ACC_FINAL + Opcodes.ACC_SUPER, |
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|
313 |
CLASS_PREFIX + className, null, INVOKER_SUPER_NAME, null); |
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|
314 |
cw.visitSource(SOURCE_PREFIX + className, null); |
40211
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|
315 |
return cw; |
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|
316 |
} |
13423
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|
317 |
|
40211
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|
318 |
private void methodPrologue() { |
13423
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|
319 |
String invokerDesc = invokerType.toMethodDescriptorString(); |
17843fff200d
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|
320 |
mv = cw.visitMethod(Opcodes.ACC_STATIC, invokerName, invokerDesc, null, null); |
17843fff200d
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|
321 |
} |
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|
322 |
|
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changeset
|
323 |
/** |
17843fff200d
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changeset
|
324 |
* Tear down class file generation. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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changeset
|
325 |
*/ |
40211
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|
326 |
private void methodEpilogue() { |
13423
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|
327 |
mv.visitMaxs(0, 0); |
17843fff200d
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diff
changeset
|
328 |
mv.visitEnd(); |
17843fff200d
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diff
changeset
|
329 |
} |
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|
330 |
|
17843fff200d
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diff
changeset
|
331 |
/* |
17843fff200d
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parents:
diff
changeset
|
332 |
* Low-level emit helpers. |
17843fff200d
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parents:
diff
changeset
|
333 |
*/ |
17843fff200d
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diff
changeset
|
334 |
private void emitConst(Object con) { |
17843fff200d
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diff
changeset
|
335 |
if (con == null) { |
17843fff200d
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diff
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|
336 |
mv.visitInsn(Opcodes.ACONST_NULL); |
17843fff200d
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|
337 |
return; |
17843fff200d
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parents:
diff
changeset
|
338 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
339 |
if (con instanceof Integer) { |
17843fff200d
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parents:
diff
changeset
|
340 |
emitIconstInsn((int) con); |
17843fff200d
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diff
changeset
|
341 |
return; |
17843fff200d
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twisti
parents:
diff
changeset
|
342 |
} |
34530
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
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diff
changeset
|
343 |
if (con instanceof Byte) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
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parents:
34429
diff
changeset
|
344 |
emitIconstInsn((byte)con); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
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parents:
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changeset
|
345 |
return; |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
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parents:
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diff
changeset
|
346 |
} |
364376f150cf
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parents:
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diff
changeset
|
347 |
if (con instanceof Short) { |
364376f150cf
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parents:
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diff
changeset
|
348 |
emitIconstInsn((short)con); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
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parents:
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diff
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|
349 |
return; |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
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parents:
34429
diff
changeset
|
350 |
} |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
351 |
if (con instanceof Character) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
352 |
emitIconstInsn((char)con); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
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diff
changeset
|
353 |
return; |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
354 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
changeset
|
355 |
if (con instanceof Long) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
356 |
long x = (long) con; |
34530
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
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parents:
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diff
changeset
|
357 |
short sx = (short)x; |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
358 |
if (x == sx) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
359 |
if (sx >= 0 && sx <= 1) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
360 |
mv.visitInsn(Opcodes.LCONST_0 + (int) sx); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
361 |
} else { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
362 |
emitIconstInsn((int) x); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
363 |
mv.visitInsn(Opcodes.I2L); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
364 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
365 |
return; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
366 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
367 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
368 |
if (con instanceof Float) { |
17843fff200d
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twisti
parents:
diff
changeset
|
369 |
float x = (float) con; |
34530
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
370 |
short sx = (short)x; |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
371 |
if (x == sx) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
372 |
if (sx >= 0 && sx <= 2) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
373 |
mv.visitInsn(Opcodes.FCONST_0 + (int) sx); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
374 |
} else { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
375 |
emitIconstInsn((int) x); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
376 |
mv.visitInsn(Opcodes.I2F); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
377 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
378 |
return; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
379 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
380 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
381 |
if (con instanceof Double) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
382 |
double x = (double) con; |
34530
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
383 |
short sx = (short)x; |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
384 |
if (x == sx) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
385 |
if (sx >= 0 && sx <= 1) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
386 |
mv.visitInsn(Opcodes.DCONST_0 + (int) sx); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
387 |
} else { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
34429
diff
changeset
|
388 |
emitIconstInsn((int) x); |
364376f150cf
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|
389 |
mv.visitInsn(Opcodes.I2D); |
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|
390 |
} |
13423
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|
391 |
return; |
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twisti
parents:
diff
changeset
|
392 |
} |
17843fff200d
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twisti
parents:
diff
changeset
|
393 |
} |
17843fff200d
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twisti
parents:
diff
changeset
|
394 |
if (con instanceof Boolean) { |
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twisti
parents:
diff
changeset
|
395 |
emitIconstInsn((boolean) con ? 1 : 0); |
17843fff200d
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twisti
parents:
diff
changeset
|
396 |
return; |
17843fff200d
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twisti
parents:
diff
changeset
|
397 |
} |
17843fff200d
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twisti
parents:
diff
changeset
|
398 |
// fall through: |
17843fff200d
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twisti
parents:
diff
changeset
|
399 |
mv.visitLdcInsn(con); |
17843fff200d
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twisti
parents:
diff
changeset
|
400 |
} |
17843fff200d
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twisti
parents:
diff
changeset
|
401 |
|
34530
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changeset
|
402 |
private void emitIconstInsn(final int cst) { |
364376f150cf
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redestad
parents:
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changeset
|
403 |
if (cst >= -1 && cst <= 5) { |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
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changeset
|
404 |
mv.visitInsn(Opcodes.ICONST_0 + cst); |
364376f150cf
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parents:
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changeset
|
405 |
} else if (cst >= Byte.MIN_VALUE && cst <= Byte.MAX_VALUE) { |
364376f150cf
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redestad
parents:
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changeset
|
406 |
mv.visitIntInsn(Opcodes.BIPUSH, cst); |
364376f150cf
8143127: InvokerBytecodeGenerator emitConst should handle Byte, Short, Character
redestad
parents:
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changeset
|
407 |
} else if (cst >= Short.MIN_VALUE && cst <= Short.MAX_VALUE) { |
364376f150cf
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redestad
parents:
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changeset
|
408 |
mv.visitIntInsn(Opcodes.SIPUSH, cst); |
364376f150cf
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redestad
parents:
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diff
changeset
|
409 |
} else { |
364376f150cf
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parents:
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changeset
|
410 |
mv.visitLdcInsn(cst); |
13423
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diff
changeset
|
411 |
} |
17843fff200d
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twisti
parents:
diff
changeset
|
412 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
413 |
|
17843fff200d
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twisti
parents:
diff
changeset
|
414 |
/* |
17843fff200d
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changeset
|
415 |
* NOTE: These load/store methods use the localsMap to find the correct index! |
17843fff200d
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changeset
|
416 |
*/ |
24572
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changeset
|
417 |
private void emitLoadInsn(BasicType type, int index) { |
5c9e5961d21c
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changeset
|
418 |
int opcode = loadInsnOpcode(type); |
5c9e5961d21c
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changeset
|
419 |
mv.visitVarInsn(opcode, localsMap[index]); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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changeset
|
420 |
} |
5c9e5961d21c
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changeset
|
421 |
|
5c9e5961d21c
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changeset
|
422 |
private int loadInsnOpcode(BasicType type) throws InternalError { |
13423
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diff
changeset
|
423 |
switch (type) { |
24572
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changeset
|
424 |
case I_TYPE: return Opcodes.ILOAD; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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changeset
|
425 |
case J_TYPE: return Opcodes.LLOAD; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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changeset
|
426 |
case F_TYPE: return Opcodes.FLOAD; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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changeset
|
427 |
case D_TYPE: return Opcodes.DLOAD; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
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changeset
|
428 |
case L_TYPE: return Opcodes.ALOAD; |
5c9e5961d21c
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diff
changeset
|
429 |
default: |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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parents:
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changeset
|
430 |
throw new InternalError("unknown type: " + type); |
13423
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twisti
parents:
diff
changeset
|
431 |
} |
17843fff200d
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twisti
parents:
diff
changeset
|
432 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
433 |
private void emitAloadInsn(int index) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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parents:
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changeset
|
434 |
emitLoadInsn(L_TYPE, index); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
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diff
changeset
|
435 |
} |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
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diff
changeset
|
436 |
|
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
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diff
changeset
|
437 |
private void emitStoreInsn(BasicType type, int index) { |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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parents:
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diff
changeset
|
438 |
int opcode = storeInsnOpcode(type); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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parents:
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changeset
|
439 |
mv.visitVarInsn(opcode, localsMap[index]); |
13423
17843fff200d
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twisti
parents:
diff
changeset
|
440 |
} |
17843fff200d
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twisti
parents:
diff
changeset
|
441 |
|
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
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changeset
|
442 |
private int storeInsnOpcode(BasicType type) throws InternalError { |
13423
17843fff200d
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twisti
parents:
diff
changeset
|
443 |
switch (type) { |
24572
5c9e5961d21c
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vlivanov
parents:
23918
diff
changeset
|
444 |
case I_TYPE: return Opcodes.ISTORE; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
445 |
case J_TYPE: return Opcodes.LSTORE; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
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diff
changeset
|
446 |
case F_TYPE: return Opcodes.FSTORE; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
447 |
case D_TYPE: return Opcodes.DSTORE; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
448 |
case L_TYPE: return Opcodes.ASTORE; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
449 |
default: |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
450 |
throw new InternalError("unknown type: " + type); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
451 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
452 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
453 |
private void emitAstoreInsn(int index) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
454 |
emitStoreInsn(L_TYPE, index); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
455 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
456 |
|
26465
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
457 |
private byte arrayTypeCode(Wrapper elementType) { |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
458 |
switch (elementType) { |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
459 |
case BOOLEAN: return Opcodes.T_BOOLEAN; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
460 |
case BYTE: return Opcodes.T_BYTE; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
461 |
case CHAR: return Opcodes.T_CHAR; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
462 |
case SHORT: return Opcodes.T_SHORT; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
463 |
case INT: return Opcodes.T_INT; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
464 |
case LONG: return Opcodes.T_LONG; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
465 |
case FLOAT: return Opcodes.T_FLOAT; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
466 |
case DOUBLE: return Opcodes.T_DOUBLE; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
467 |
case OBJECT: return 0; // in place of Opcodes.T_OBJECT |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
468 |
default: throw new InternalError(); |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
469 |
} |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
470 |
} |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
471 |
|
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
472 |
private int arrayInsnOpcode(byte tcode, int aaop) throws InternalError { |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
473 |
assert(aaop == Opcodes.AASTORE || aaop == Opcodes.AALOAD); |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
474 |
int xas; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
475 |
switch (tcode) { |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
476 |
case Opcodes.T_BOOLEAN: xas = Opcodes.BASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
477 |
case Opcodes.T_BYTE: xas = Opcodes.BASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
478 |
case Opcodes.T_CHAR: xas = Opcodes.CASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
479 |
case Opcodes.T_SHORT: xas = Opcodes.SASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
480 |
case Opcodes.T_INT: xas = Opcodes.IASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
481 |
case Opcodes.T_LONG: xas = Opcodes.LASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
482 |
case Opcodes.T_FLOAT: xas = Opcodes.FASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
483 |
case Opcodes.T_DOUBLE: xas = Opcodes.DASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
484 |
case 0: xas = Opcodes.AASTORE; break; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
485 |
default: throw new InternalError(); |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
486 |
} |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
487 |
return xas - Opcodes.AASTORE + aaop; |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
488 |
} |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
489 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
490 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
491 |
* Emit a boxing call. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
492 |
* |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
493 |
* @param wrapper primitive type class to box. |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
494 |
*/ |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
495 |
private void emitBoxing(Wrapper wrapper) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
496 |
String owner = "java/lang/" + wrapper.wrapperType().getSimpleName(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
497 |
String name = "valueOf"; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
498 |
String desc = "(" + wrapper.basicTypeChar() + ")L" + owner + ";"; |
22297 | 499 |
mv.visitMethodInsn(Opcodes.INVOKESTATIC, owner, name, desc, false); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
500 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
501 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
502 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
503 |
* Emit an unboxing call (plus preceding checkcast). |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
504 |
* |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
505 |
* @param wrapper wrapper type class to unbox. |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
506 |
*/ |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
507 |
private void emitUnboxing(Wrapper wrapper) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
508 |
String owner = "java/lang/" + wrapper.wrapperType().getSimpleName(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
509 |
String name = wrapper.primitiveSimpleName() + "Value"; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
510 |
String desc = "()" + wrapper.basicTypeChar(); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
511 |
emitReferenceCast(wrapper.wrapperType(), null); |
22297 | 512 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, owner, name, desc, false); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
513 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
514 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
515 |
/** |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
516 |
* Emit an implicit conversion for an argument which must be of the given pclass. |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
517 |
* This is usually a no-op, except when pclass is a subword type or a reference other than Object or an interface. |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
518 |
* |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
519 |
* @param ptype type of value present on stack |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
520 |
* @param pclass type of value required on stack |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
521 |
* @param arg compile-time representation of value on stack (Node, constant) or null if none |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
522 |
*/ |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
523 |
private void emitImplicitConversion(BasicType ptype, Class<?> pclass, Object arg) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
524 |
assert(basicType(pclass) == ptype); // boxing/unboxing handled by caller |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
525 |
if (pclass == ptype.basicTypeClass() && ptype != L_TYPE) |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
526 |
return; // nothing to do |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
527 |
switch (ptype) { |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
528 |
case L_TYPE: |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
529 |
if (VerifyType.isNullConversion(Object.class, pclass, false)) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
530 |
if (PROFILE_LEVEL > 0) |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
531 |
emitReferenceCast(Object.class, arg); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
532 |
return; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
533 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
534 |
emitReferenceCast(pclass, arg); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
535 |
return; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
536 |
case I_TYPE: |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
537 |
if (!VerifyType.isNullConversion(int.class, pclass, false)) |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
538 |
emitPrimCast(ptype.basicTypeWrapper(), Wrapper.forPrimitiveType(pclass)); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
539 |
return; |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
540 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
541 |
throw newInternalError("bad implicit conversion: tc="+ptype+": "+pclass); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
542 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
543 |
|
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
544 |
/** Update localClasses type map. Return true if the information is already present. */ |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
545 |
private boolean assertStaticType(Class<?> cls, Name n) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
546 |
int local = n.index(); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
547 |
Class<?> aclass = localClasses[local]; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
548 |
if (aclass != null && (aclass == cls || cls.isAssignableFrom(aclass))) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
549 |
return true; // type info is already present |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
550 |
} else if (aclass == null || aclass.isAssignableFrom(cls)) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
551 |
localClasses[local] = cls; // type info can be improved |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
552 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
553 |
return false; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
554 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
555 |
|
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
556 |
private void emitReferenceCast(Class<?> cls, Object arg) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
557 |
Name writeBack = null; // local to write back result |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
558 |
if (arg instanceof Name) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
559 |
Name n = (Name) arg; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
560 |
if (lambdaForm.useCount(n) > 1) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
561 |
// This guy gets used more than once. |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
562 |
writeBack = n; |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
563 |
if (assertStaticType(cls, n)) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
564 |
return; // this cast was already performed |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
565 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
566 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
567 |
} |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
568 |
if (isStaticallyNameable(cls)) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
569 |
String sig = getInternalName(cls); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
570 |
mv.visitTypeInsn(Opcodes.CHECKCAST, sig); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
571 |
} else { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
572 |
mv.visitLdcInsn(constantPlaceholder(cls)); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
573 |
mv.visitTypeInsn(Opcodes.CHECKCAST, CLS); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
574 |
mv.visitInsn(Opcodes.SWAP); |
31802
cb6542e7d329
8062543: Replace uses of MethodHandleImpl.castReference with Class.cast
mhaupt
parents:
31253
diff
changeset
|
575 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, CLS, "cast", LL_SIG, false); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
576 |
if (Object[].class.isAssignableFrom(cls)) |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
577 |
mv.visitTypeInsn(Opcodes.CHECKCAST, OBJARY); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
578 |
else if (PROFILE_LEVEL > 0) |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
579 |
mv.visitTypeInsn(Opcodes.CHECKCAST, OBJ); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
580 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
581 |
if (writeBack != null) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
582 |
mv.visitInsn(Opcodes.DUP); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
583 |
emitAstoreInsn(writeBack.index()); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
584 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
585 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
586 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
587 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
588 |
* Emits an actual return instruction conforming to the given return type. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
589 |
*/ |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
590 |
private void emitReturnInsn(BasicType type) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
591 |
int opcode; |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
592 |
switch (type) { |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
593 |
case I_TYPE: opcode = Opcodes.IRETURN; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
594 |
case J_TYPE: opcode = Opcodes.LRETURN; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
595 |
case F_TYPE: opcode = Opcodes.FRETURN; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
596 |
case D_TYPE: opcode = Opcodes.DRETURN; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
597 |
case L_TYPE: opcode = Opcodes.ARETURN; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
598 |
case V_TYPE: opcode = Opcodes.RETURN; break; |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
599 |
default: |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
600 |
throw new InternalError("unknown return type: " + type); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
601 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
602 |
mv.visitInsn(opcode); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
603 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
604 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
605 |
private static String getInternalName(Class<?> c) { |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
606 |
if (c == Object.class) return OBJ; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
607 |
else if (c == Object[].class) return OBJARY; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
608 |
else if (c == Class.class) return CLS; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
609 |
else if (c == MethodHandle.class) return MH; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
610 |
assert(VerifyAccess.isTypeVisible(c, Object.class)) : c.getName(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
611 |
return c.getName().replace('.', '/'); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
612 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
613 |
|
40408
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
614 |
private static MemberName resolveFrom(String name, MethodType type, Class<?> holder) { |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
615 |
MemberName member = new MemberName(holder, name, type, REF_invokeStatic); |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
616 |
MemberName resolvedMember = MemberName.getFactory().resolveOrNull(REF_invokeStatic, member, holder); |
40559
e727ba540ee6
8163371: Enable tracing which JLI classes can be pre-generated
redestad
parents:
40543
diff
changeset
|
617 |
if (TRACE_RESOLVE) { |
e727ba540ee6
8163371: Enable tracing which JLI classes can be pre-generated
redestad
parents:
40543
diff
changeset
|
618 |
System.out.println("[LF_RESOLVE] " + holder.getName() + " " + name + " " + |
e727ba540ee6
8163371: Enable tracing which JLI classes can be pre-generated
redestad
parents:
40543
diff
changeset
|
619 |
shortenSignature(basicTypeSignature(type)) + (resolvedMember != null ? " (success)" : " (fail)") ); |
e727ba540ee6
8163371: Enable tracing which JLI classes can be pre-generated
redestad
parents:
40543
diff
changeset
|
620 |
} |
40408
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
621 |
return resolvedMember; |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
622 |
} |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
623 |
|
44591
b9bf065070fe
8178387: Reduce memory churn when creating java.lang.invoke entities
redestad
parents:
44590
diff
changeset
|
624 |
private static MemberName lookupPregenerated(LambdaForm form, MethodType invokerType) { |
40408
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
625 |
if (form.customized != null) { |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
626 |
// No pre-generated version for customized LF |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
627 |
return null; |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
628 |
} |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
629 |
String name = form.kind.methodName; |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
630 |
switch (form.kind) { |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
631 |
case BOUND_REINVOKER: { |
47753
a2008587c13f
8184777: Factor out species generation logic from BoundMethodHandle
redestad
parents:
47216
diff
changeset
|
632 |
name = name + "_" + BoundMethodHandle.speciesDataFor(form).key(); |
40408
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
633 |
return resolveFrom(name, invokerType, DelegatingMethodHandle.Holder.class); |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
634 |
} |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
635 |
case DELEGATE: return resolveFrom(name, invokerType, DelegatingMethodHandle.Holder.class); |
40461
e372330c0d8c
8164525: Re-examine zero form link time pre-generation
redestad
parents:
40450
diff
changeset
|
636 |
case ZERO: // fall-through |
40419
20e2e4b25a40
8164451: Generate all zero and identity forms at link time
redestad
parents:
40408
diff
changeset
|
637 |
case IDENTITY: { |
20e2e4b25a40
8164451: Generate all zero and identity forms at link time
redestad
parents:
40408
diff
changeset
|
638 |
name = name + "_" + form.returnType().basicTypeChar(); |
20e2e4b25a40
8164451: Generate all zero and identity forms at link time
redestad
parents:
40408
diff
changeset
|
639 |
return resolveFrom(name, invokerType, LambdaForm.Holder.class); |
20e2e4b25a40
8164451: Generate all zero and identity forms at link time
redestad
parents:
40408
diff
changeset
|
640 |
} |
40543
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40542
diff
changeset
|
641 |
case EXACT_INVOKER: // fall-through |
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40542
diff
changeset
|
642 |
case EXACT_LINKER: // fall-through |
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40542
diff
changeset
|
643 |
case GENERIC_INVOKER: // fall-through |
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40542
diff
changeset
|
644 |
case GENERIC_LINKER: return resolveFrom(name, invokerType.basicType(), Invokers.Holder.class); |
40542
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
645 |
case GET_OBJECT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
646 |
case GET_BOOLEAN: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
647 |
case GET_BYTE: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
648 |
case GET_CHAR: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
649 |
case GET_SHORT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
650 |
case GET_INT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
651 |
case GET_LONG: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
652 |
case GET_FLOAT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
653 |
case GET_DOUBLE: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
654 |
case PUT_OBJECT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
655 |
case PUT_BOOLEAN: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
656 |
case PUT_BYTE: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
657 |
case PUT_CHAR: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
658 |
case PUT_SHORT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
659 |
case PUT_INT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
660 |
case PUT_LONG: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
661 |
case PUT_FLOAT: // fall-through |
e7be26f852fa
8164483: Generate field lambda forms at link time
redestad
parents:
40461
diff
changeset
|
662 |
case PUT_DOUBLE: // fall-through |
40408
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
663 |
case DIRECT_INVOKE_INTERFACE: // fall-through |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
664 |
case DIRECT_INVOKE_SPECIAL: // fall-through |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
665 |
case DIRECT_INVOKE_STATIC: // fall-through |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
666 |
case DIRECT_INVOKE_STATIC_INIT: // fall-through |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
667 |
case DIRECT_INVOKE_VIRTUAL: return resolveFrom(name, invokerType, DirectMethodHandle.Holder.class); |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
668 |
} |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
669 |
return null; |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
670 |
} |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
671 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
672 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
673 |
* Generate customized bytecode for a given LambdaForm. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
674 |
*/ |
44592
6b028630b652
8178480: Wrong exception being thrown on an invalid MethodType
redestad
parents:
44591
diff
changeset
|
675 |
static MemberName generateCustomizedCode(LambdaForm form, MethodType invokerType) { |
44591
b9bf065070fe
8178387: Reduce memory churn when creating java.lang.invoke entities
redestad
parents:
44590
diff
changeset
|
676 |
MemberName pregenerated = lookupPregenerated(form, invokerType); |
40408
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
677 |
if (pregenerated != null) return pregenerated; // pre-generated bytecode |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40272
diff
changeset
|
678 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
679 |
InvokerBytecodeGenerator g = new InvokerBytecodeGenerator("MH", form, invokerType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
680 |
return g.loadMethod(g.generateCustomizedCodeBytes()); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
681 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
682 |
|
29020
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
683 |
/** Generates code to check that actual receiver and LambdaForm matches */ |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
684 |
private boolean checkActualReceiver() { |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
685 |
// Expects MethodHandle on the stack and actual receiver MethodHandle in slot #0 |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
686 |
mv.visitInsn(Opcodes.DUP); |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
687 |
mv.visitVarInsn(Opcodes.ALOAD, localsMap[0]); |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
688 |
mv.visitMethodInsn(Opcodes.INVOKESTATIC, MHI, "assertSame", LLV_SIG, false); |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
689 |
return true; |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
690 |
} |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
691 |
|
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
692 |
static String className(String cn) { |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
693 |
assert checkClassName(cn): "Class not found: " + cn; |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
694 |
return cn; |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
695 |
} |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
696 |
|
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
697 |
static boolean checkClassName(String cn) { |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
698 |
Type tp = Type.getType(cn); |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
699 |
// additional sanity so only valid "L;" descriptors work |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
700 |
if (tp.getSort() != Type.OBJECT) { |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
701 |
return false; |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
702 |
} |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
703 |
try { |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
704 |
Class<?> c = Class.forName(tp.getClassName(), false, null); |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
705 |
return true; |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
706 |
} catch (ClassNotFoundException e) { |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
707 |
return false; |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
708 |
} |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
709 |
} |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
710 |
|
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
711 |
static final String LF_HIDDEN_SIG = className("Ljava/lang/invoke/LambdaForm$Hidden;"); |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
712 |
static final String LF_COMPILED_SIG = className("Ljava/lang/invoke/LambdaForm$Compiled;"); |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
713 |
static final String FORCEINLINE_SIG = className("Ljdk/internal/vm/annotation/ForceInline;"); |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
714 |
static final String DONTINLINE_SIG = className("Ljdk/internal/vm/annotation/DontInline;"); |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
715 |
static final String INJECTEDPROFILE_SIG = className("Ljava/lang/invoke/InjectedProfile;"); |
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
716 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
717 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
718 |
* Generate an invoker method for the passed {@link LambdaForm}. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
719 |
*/ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
720 |
private byte[] generateCustomizedCodeBytes() { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
721 |
classFilePrologue(); |
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
722 |
addMethod(); |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
723 |
bogusMethod(lambdaForm); |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
724 |
|
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
725 |
final byte[] classFile = toByteArray(); |
44591
b9bf065070fe
8178387: Reduce memory churn when creating java.lang.invoke entities
redestad
parents:
44590
diff
changeset
|
726 |
maybeDump(classFile); |
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
727 |
return classFile; |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
728 |
} |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
729 |
|
40258
e6ba2e5c7a29
8163373: Rewrite GenerateJLIClassesPlugin to avoid reflective calls into java.lang.invoke
redestad
parents:
40211
diff
changeset
|
730 |
void setClassWriter(ClassWriter cw) { |
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
731 |
this.cw = cw; |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
732 |
} |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
733 |
|
40258
e6ba2e5c7a29
8163373: Rewrite GenerateJLIClassesPlugin to avoid reflective calls into java.lang.invoke
redestad
parents:
40211
diff
changeset
|
734 |
void addMethod() { |
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
735 |
methodPrologue(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
736 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
737 |
// Suppress this method in backtraces displayed to the user. |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
738 |
mv.visitAnnotation(LF_HIDDEN_SIG, true); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
739 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
740 |
// Mark this method as a compiled LambdaForm |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
741 |
mv.visitAnnotation(LF_COMPILED_SIG, true); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
742 |
|
27295
8ed31033bf48
8059877: GWT branch frequencies pollution due to LF sharing
vlivanov
parents:
26637
diff
changeset
|
743 |
if (lambdaForm.forceInline) { |
8ed31033bf48
8059877: GWT branch frequencies pollution due to LF sharing
vlivanov
parents:
26637
diff
changeset
|
744 |
// Force inlining of this invoker method. |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
745 |
mv.visitAnnotation(FORCEINLINE_SIG, true); |
27295
8ed31033bf48
8059877: GWT branch frequencies pollution due to LF sharing
vlivanov
parents:
26637
diff
changeset
|
746 |
} else { |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
747 |
mv.visitAnnotation(DONTINLINE_SIG, true); |
27295
8ed31033bf48
8059877: GWT branch frequencies pollution due to LF sharing
vlivanov
parents:
26637
diff
changeset
|
748 |
} |
8ed31033bf48
8059877: GWT branch frequencies pollution due to LF sharing
vlivanov
parents:
26637
diff
changeset
|
749 |
|
37334
1169e9593135
8067247: Crash: assert(method_holder->data() == 0 ...) failed: a) MT-unsafe modification of inline cache
jcm
parents:
36016
diff
changeset
|
750 |
constantPlaceholder(lambdaForm); // keep LambdaForm instance & its compiled form lifetime tightly coupled. |
1169e9593135
8067247: Crash: assert(method_holder->data() == 0 ...) failed: a) MT-unsafe modification of inline cache
jcm
parents:
36016
diff
changeset
|
751 |
|
29020
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
752 |
if (lambdaForm.customized != null) { |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
753 |
// Since LambdaForm is customized for a particular MethodHandle, it's safe to substitute |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
754 |
// receiver MethodHandle (at slot #0) with an embedded constant and use it instead. |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
755 |
// It enables more efficient code generation in some situations, since embedded constants |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
756 |
// are compile-time constants for JIT compiler. |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
757 |
mv.visitLdcInsn(constantPlaceholder(lambdaForm.customized)); |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
758 |
mv.visitTypeInsn(Opcodes.CHECKCAST, MH); |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
759 |
assert(checkActualReceiver()); // expects MethodHandle on top of the stack |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
760 |
mv.visitVarInsn(Opcodes.ASTORE, localsMap[0]); |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
761 |
} |
9f6d43586ccb
8069591: Customize LambdaForms which are invoked using MH.invoke/invokeExact
vlivanov
parents:
29019
diff
changeset
|
762 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
763 |
// iterate over the form's names, generating bytecode instructions for each |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
764 |
// start iterating at the first name following the arguments |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
765 |
Name onStack = null; |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
766 |
for (int i = lambdaForm.arity; i < lambdaForm.names.length; i++) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
767 |
Name name = lambdaForm.names[i]; |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
768 |
|
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
769 |
emitStoreResult(onStack); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
770 |
onStack = name; // unless otherwise modified below |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
771 |
MethodHandleImpl.Intrinsic intr = name.function.intrinsicName(); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
772 |
switch (intr) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
773 |
case SELECT_ALTERNATIVE: |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
774 |
assert lambdaForm.isSelectAlternative(i); |
31253
5efb78c8a07d
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
30365
diff
changeset
|
775 |
if (PROFILE_GWT) { |
5efb78c8a07d
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
30365
diff
changeset
|
776 |
assert(name.arguments[0] instanceof Name && |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
777 |
((Name)name.arguments[0]).refersTo(MethodHandleImpl.class, "profileBoolean")); |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
778 |
mv.visitAnnotation(INJECTEDPROFILE_SIG, true); |
31253
5efb78c8a07d
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
30365
diff
changeset
|
779 |
} |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
780 |
onStack = emitSelectAlternative(name, lambdaForm.names[i+1]); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
781 |
i++; // skip MH.invokeBasic of the selectAlternative result |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
782 |
continue; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
783 |
case GUARD_WITH_CATCH: |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
784 |
assert lambdaForm.isGuardWithCatch(i); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
785 |
onStack = emitGuardWithCatch(i); |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
786 |
i += 2; // jump to the end of GWC idiom |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
787 |
continue; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
788 |
case TRY_FINALLY: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
789 |
assert lambdaForm.isTryFinally(i); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
790 |
onStack = emitTryFinally(i); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
791 |
i += 2; // jump to the end of the TF idiom |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
792 |
continue; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
793 |
case LOOP: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
794 |
assert lambdaForm.isLoop(i); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
795 |
onStack = emitLoop(i); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
796 |
i += 2; // jump to the end of the LOOP idiom |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
797 |
continue; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
798 |
case NEW_ARRAY: |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
799 |
Class<?> rtype = name.function.methodType().returnType(); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
800 |
if (isStaticallyNameable(rtype)) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
801 |
emitNewArray(name); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
802 |
continue; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
803 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
804 |
break; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
805 |
case ARRAY_LOAD: |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
806 |
emitArrayLoad(name); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
807 |
continue; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
808 |
case ARRAY_STORE: |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
809 |
emitArrayStore(name); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
810 |
continue; |
38376
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
811 |
case ARRAY_LENGTH: |
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
812 |
emitArrayLength(name); |
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
813 |
continue; |
26475
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26473
diff
changeset
|
814 |
case IDENTITY: |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26473
diff
changeset
|
815 |
assert(name.arguments.length == 1); |
40272
6af4511ee5a4
8163878: Remove unnecessary bridge methods, allocations in java.lang.invoke
redestad
parents:
40258
diff
changeset
|
816 |
emitPushArguments(name, 0); |
26475
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26473
diff
changeset
|
817 |
continue; |
26476
2b814465aaa3
8050887: Intrinsify constants for default values
vlivanov
parents:
26475
diff
changeset
|
818 |
case ZERO: |
2b814465aaa3
8050887: Intrinsify constants for default values
vlivanov
parents:
26475
diff
changeset
|
819 |
assert(name.arguments.length == 0); |
2b814465aaa3
8050887: Intrinsify constants for default values
vlivanov
parents:
26475
diff
changeset
|
820 |
emitConst(name.type.basicTypeWrapper().zero()); |
2b814465aaa3
8050887: Intrinsify constants for default values
vlivanov
parents:
26475
diff
changeset
|
821 |
continue; |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
822 |
case NONE: |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
823 |
// no intrinsic associated |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
824 |
break; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
825 |
default: |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
826 |
throw newInternalError("Unknown intrinsic: "+intr); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
827 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
828 |
|
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
829 |
MemberName member = name.function.member(); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
830 |
if (isStaticallyInvocable(member)) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
831 |
emitStaticInvoke(member, name); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
832 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
833 |
emitInvoke(name); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
834 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
835 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
836 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
837 |
// return statement |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
838 |
emitReturn(onStack); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
839 |
|
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
840 |
methodEpilogue(); |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
841 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
842 |
|
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
843 |
/* |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
844 |
* @throws BytecodeGenerationException if something goes wrong when |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
845 |
* generating the byte code |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
846 |
*/ |
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
847 |
private byte[] toByteArray() { |
39483
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
848 |
try { |
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
849 |
return cw.toByteArray(); |
39483
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
850 |
} catch (RuntimeException e) { |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
851 |
throw new BytecodeGenerationException(e); |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
852 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
853 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
854 |
|
39483
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
855 |
@SuppressWarnings("serial") |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
856 |
static final class BytecodeGenerationException extends RuntimeException { |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
857 |
BytecodeGenerationException(Exception cause) { |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
858 |
super(cause); |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
859 |
} |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
860 |
} |
3a7e016ba204
8160717: MethodHandles.loop() does not check for excessive signature
mhaupt
parents:
39342
diff
changeset
|
861 |
|
38376
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
862 |
void emitArrayLoad(Name name) { emitArrayOp(name, Opcodes.AALOAD); } |
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
863 |
void emitArrayStore(Name name) { emitArrayOp(name, Opcodes.AASTORE); } |
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
864 |
void emitArrayLength(Name name) { emitArrayOp(name, Opcodes.ARRAYLENGTH); } |
26465
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
865 |
|
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
866 |
void emitArrayOp(Name name, int arrayOpcode) { |
38376
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
867 |
assert arrayOpcode == Opcodes.AALOAD || arrayOpcode == Opcodes.AASTORE || arrayOpcode == Opcodes.ARRAYLENGTH; |
26465
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
868 |
Class<?> elementType = name.function.methodType().parameterType(0).getComponentType(); |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
869 |
assert elementType != null; |
40272
6af4511ee5a4
8163878: Remove unnecessary bridge methods, allocations in java.lang.invoke
redestad
parents:
40258
diff
changeset
|
870 |
emitPushArguments(name, 0); |
38376
08549412f0dc
8156915: introduce MethodHandle factory for array length
mhaupt
parents:
37334
diff
changeset
|
871 |
if (arrayOpcode != Opcodes.ARRAYLENGTH && elementType.isPrimitive()) { |
26465
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
872 |
Wrapper w = Wrapper.forPrimitiveType(elementType); |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
873 |
arrayOpcode = arrayInsnOpcode(arrayTypeCode(w), arrayOpcode); |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
874 |
} |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
875 |
mv.visitInsn(arrayOpcode); |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
876 |
} |
5ff735dd0d52
8038261: JSR292: cache and reuse typed array accessors
vlivanov
parents:
26464
diff
changeset
|
877 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
878 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
879 |
* Emit an invoke for the given name. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
880 |
*/ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
881 |
void emitInvoke(Name name) { |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
882 |
assert(!name.isLinkerMethodInvoke()); // should use the static path for these |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
883 |
if (true) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
884 |
// push receiver |
33841
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
885 |
MethodHandle target = name.function.resolvedHandle(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
886 |
assert(target != null) : name.exprString(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
887 |
mv.visitLdcInsn(constantPlaceholder(target)); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
888 |
emitReferenceCast(MethodHandle.class, target); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
889 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
890 |
// load receiver |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
891 |
emitAloadInsn(0); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
892 |
emitReferenceCast(MethodHandle.class, null); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
893 |
mv.visitFieldInsn(Opcodes.GETFIELD, MH, "form", LF_SIG); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
894 |
mv.visitFieldInsn(Opcodes.GETFIELD, LF, "names", LFN_SIG); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
895 |
// TODO more to come |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
896 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
897 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
898 |
// push arguments |
40272
6af4511ee5a4
8163878: Remove unnecessary bridge methods, allocations in java.lang.invoke
redestad
parents:
40258
diff
changeset
|
899 |
emitPushArguments(name, 0); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
900 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
901 |
// invocation |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
902 |
MethodType type = name.function.methodType(); |
22297 | 903 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", type.basicType().toMethodDescriptorString(), false); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
904 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
905 |
|
32649
2ee9017c7597
8136583: Core libraries should use blessed modifier order
martin
parents:
31802
diff
changeset
|
906 |
private static Class<?>[] STATICALLY_INVOCABLE_PACKAGES = { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
907 |
// Sample classes from each package we are willing to bind to statically: |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
908 |
java.lang.Object.class, |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
909 |
java.util.Arrays.class, |
33674
566777f73c32
8140606: Update library code to use internal Unsafe
chegar
parents:
32649
diff
changeset
|
910 |
jdk.internal.misc.Unsafe.class |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
911 |
//MethodHandle.class already covered |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
912 |
}; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
913 |
|
44590
15a77e5b7612
8178384: Reduce work in java.lang.invoke initializers
redestad
parents:
43893
diff
changeset
|
914 |
static boolean isStaticallyInvocable(NamedFunction ... functions) { |
33841
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
915 |
for (NamedFunction nf : functions) { |
33846 | 916 |
if (!isStaticallyInvocable(nf.member())) { |
33841
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
917 |
return false; |
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
918 |
} |
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
919 |
} |
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
920 |
return true; |
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
921 |
} |
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
922 |
|
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
923 |
static boolean isStaticallyInvocable(Name name) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
924 |
return isStaticallyInvocable(name.function.member()); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
925 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
926 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
927 |
static boolean isStaticallyInvocable(MemberName member) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
928 |
if (member == null) return false; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
929 |
if (member.isConstructor()) return false; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
930 |
Class<?> cls = member.getDeclaringClass(); |
48993
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
931 |
// Fast-path non-private members declared by MethodHandles, which is a common |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
932 |
// case |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
933 |
if (MethodHandle.class.isAssignableFrom(cls) && !member.isPrivate()) { |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
934 |
assert(isStaticallyInvocableType(member.getMethodOrFieldType())); |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
935 |
return true; |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
936 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
937 |
if (cls.isArray() || cls.isPrimitive()) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
938 |
return false; // FIXME |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
939 |
if (cls.isAnonymousClass() || cls.isLocalClass()) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
940 |
return false; // inner class of some sort |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
941 |
if (cls.getClassLoader() != MethodHandle.class.getClassLoader()) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
942 |
return false; // not on BCP |
24974
e4a51c336a52
8046903: VM anonymous class members can't be statically invocable
vlivanov
parents:
24685
diff
changeset
|
943 |
if (ReflectUtil.isVMAnonymousClass(cls)) // FIXME: switch to supported API once it is added |
e4a51c336a52
8046903: VM anonymous class members can't be statically invocable
vlivanov
parents:
24685
diff
changeset
|
944 |
return false; |
48993
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
945 |
if (!isStaticallyInvocableType(member.getMethodOrFieldType())) |
19816
4136f2a0645d
8024283: 10 nashorn tests fail with similar stack trace InternalError with cause being NoClassDefFoundError
rfield
parents:
14852
diff
changeset
|
946 |
return false; |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
947 |
if (!member.isPrivate() && VerifyAccess.isSamePackage(MethodHandle.class, cls)) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
948 |
return true; // in java.lang.invoke package |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
949 |
if (member.isPublic() && isStaticallyNameable(cls)) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
950 |
return true; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
951 |
return false; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
952 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
953 |
|
48993
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
954 |
private static boolean isStaticallyInvocableType(MethodType mtype) { |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
955 |
if (!isStaticallyNameable(mtype.returnType())) |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
956 |
return false; |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
957 |
for (Class<?> ptype : mtype.parameterArray()) |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
958 |
if (!isStaticallyNameable(ptype)) |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
959 |
return false; |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
960 |
return true; |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
961 |
} |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
962 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
963 |
static boolean isStaticallyNameable(Class<?> cls) { |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
964 |
if (cls == Object.class) |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
965 |
return true; |
48993
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
966 |
if (MethodHandle.class.isAssignableFrom(cls)) { |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
967 |
assert(!ReflectUtil.isVMAnonymousClass(cls)); |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
968 |
return true; |
aef762ff9b23
8198755: Reduce cost of InvokerBytecodeGenerator::isStaticallyInvocable/-Nameable
redestad
parents:
47753
diff
changeset
|
969 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
970 |
while (cls.isArray()) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
971 |
cls = cls.getComponentType(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
972 |
if (cls.isPrimitive()) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
973 |
return true; // int[].class, for example |
24974
e4a51c336a52
8046903: VM anonymous class members can't be statically invocable
vlivanov
parents:
24685
diff
changeset
|
974 |
if (ReflectUtil.isVMAnonymousClass(cls)) // FIXME: switch to supported API once it is added |
e4a51c336a52
8046903: VM anonymous class members can't be statically invocable
vlivanov
parents:
24685
diff
changeset
|
975 |
return false; |
20872
8e486b70dff8
8022718: Runtime accessibility checking: protected class, if extended, should be accessible from another package
drchase
parents:
20535
diff
changeset
|
976 |
// could use VerifyAccess.isClassAccessible but the following is a safe approximation |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
977 |
if (cls.getClassLoader() != Object.class.getClassLoader()) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
978 |
return false; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
979 |
if (VerifyAccess.isSamePackage(MethodHandle.class, cls)) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
980 |
return true; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
981 |
if (!Modifier.isPublic(cls.getModifiers())) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
982 |
return false; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
983 |
for (Class<?> pkgcls : STATICALLY_INVOCABLE_PACKAGES) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
984 |
if (VerifyAccess.isSamePackage(pkgcls, cls)) |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
985 |
return true; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
986 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
987 |
return false; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
988 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
989 |
|
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
990 |
void emitStaticInvoke(Name name) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
991 |
emitStaticInvoke(name.function.member(), name); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
992 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
993 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
994 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
995 |
* Emit an invoke for the given name, using the MemberName directly. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
996 |
*/ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
997 |
void emitStaticInvoke(MemberName member, Name name) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
998 |
assert(member.equals(name.function.member())); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
999 |
Class<?> defc = member.getDeclaringClass(); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1000 |
String cname = getInternalName(defc); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1001 |
String mname = member.getName(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1002 |
String mtype; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1003 |
byte refKind = member.getReferenceKind(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1004 |
if (refKind == REF_invokeSpecial) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1005 |
// in order to pass the verifier, we need to convert this to invokevirtual in all cases |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1006 |
assert(member.canBeStaticallyBound()) : member; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1007 |
refKind = REF_invokeVirtual; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1008 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1009 |
|
30343
bf75edd66df0
8033465: JSR292: InvokerBytecodeGenerator: convert a check for REF_invokeVirtual on an interface into an assert
mhaupt
parents:
29020
diff
changeset
|
1010 |
assert(!(member.getDeclaringClass().isInterface() && refKind == REF_invokeVirtual)); |
22287
7bb2a658a502
8031502: JSR292: IncompatibleClassChangeError in LambdaForm for CharSequence.toString() method handle type converter
vlivanov
parents:
21618
diff
changeset
|
1011 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1012 |
// push arguments |
40272
6af4511ee5a4
8163878: Remove unnecessary bridge methods, allocations in java.lang.invoke
redestad
parents:
40258
diff
changeset
|
1013 |
emitPushArguments(name, 0); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1014 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1015 |
// invocation |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1016 |
if (member.isMethod()) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1017 |
mtype = member.getMethodType().toMethodDescriptorString(); |
21618
6632680b0683
8027232: Update j.l.invoke code generating class files to use ASM enhancements for invocation of non-abstract methods on ifaces
ksrini
parents:
20872
diff
changeset
|
1018 |
mv.visitMethodInsn(refKindOpcode(refKind), cname, mname, mtype, |
6632680b0683
8027232: Update j.l.invoke code generating class files to use ASM enhancements for invocation of non-abstract methods on ifaces
ksrini
parents:
20872
diff
changeset
|
1019 |
member.getDeclaringClass().isInterface()); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1020 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1021 |
mtype = MethodType.toFieldDescriptorString(member.getFieldType()); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1022 |
mv.visitFieldInsn(refKindOpcode(refKind), cname, mname, mtype); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1023 |
} |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1024 |
// Issue a type assertion for the result, so we can avoid casts later. |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1025 |
if (name.type == L_TYPE) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1026 |
Class<?> rtype = member.getInvocationType().returnType(); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1027 |
assert(!rtype.isPrimitive()); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1028 |
if (rtype != Object.class && !rtype.isInterface()) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1029 |
assertStaticType(rtype, name); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1030 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1031 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1032 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1033 |
|
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1034 |
void emitNewArray(Name name) throws InternalError { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1035 |
Class<?> rtype = name.function.methodType().returnType(); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1036 |
if (name.arguments.length == 0) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1037 |
// The array will be a constant. |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1038 |
Object emptyArray; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1039 |
try { |
33841
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
1040 |
emptyArray = name.function.resolvedHandle().invoke(); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1041 |
} catch (Throwable ex) { |
42105
d04ede5f10e7
8163553: java.lang.LinkageError from test java/lang/ThreadGroup/Stop.java
psandoz
parents:
41125
diff
changeset
|
1042 |
throw uncaughtException(ex); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1043 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1044 |
assert(java.lang.reflect.Array.getLength(emptyArray) == 0); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1045 |
assert(emptyArray.getClass() == rtype); // exact typing |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1046 |
mv.visitLdcInsn(constantPlaceholder(emptyArray)); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1047 |
emitReferenceCast(rtype, emptyArray); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1048 |
return; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1049 |
} |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1050 |
Class<?> arrayElementType = rtype.getComponentType(); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1051 |
assert(arrayElementType != null); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1052 |
emitIconstInsn(name.arguments.length); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1053 |
int xas = Opcodes.AASTORE; |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1054 |
if (!arrayElementType.isPrimitive()) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1055 |
mv.visitTypeInsn(Opcodes.ANEWARRAY, getInternalName(arrayElementType)); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1056 |
} else { |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1057 |
byte tc = arrayTypeCode(Wrapper.forPrimitiveType(arrayElementType)); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26466
diff
changeset
|
1058 |
xas = arrayInsnOpcode(tc, xas); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1059 |
mv.visitIntInsn(Opcodes.NEWARRAY, tc); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1060 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1061 |
// store arguments |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1062 |
for (int i = 0; i < name.arguments.length; i++) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1063 |
mv.visitInsn(Opcodes.DUP); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1064 |
emitIconstInsn(i); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1065 |
emitPushArgument(name, i); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1066 |
mv.visitInsn(xas); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1067 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1068 |
// the array is left on the stack |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1069 |
assertStaticType(rtype, name); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1070 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1071 |
int refKindOpcode(byte refKind) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1072 |
switch (refKind) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1073 |
case REF_invokeVirtual: return Opcodes.INVOKEVIRTUAL; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1074 |
case REF_invokeStatic: return Opcodes.INVOKESTATIC; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1075 |
case REF_invokeSpecial: return Opcodes.INVOKESPECIAL; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1076 |
case REF_invokeInterface: return Opcodes.INVOKEINTERFACE; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1077 |
case REF_getField: return Opcodes.GETFIELD; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1078 |
case REF_putField: return Opcodes.PUTFIELD; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1079 |
case REF_getStatic: return Opcodes.GETSTATIC; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1080 |
case REF_putStatic: return Opcodes.PUTSTATIC; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1081 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1082 |
throw new InternalError("refKind="+refKind); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1083 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1084 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1085 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1086 |
* Emit bytecode for the selectAlternative idiom. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1087 |
* |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1088 |
* The pattern looks like (Cf. MethodHandleImpl.makeGuardWithTest): |
20535
cc85c8626435
8024438: JSR 292 API specification maintenance for JDK 8
jrose
parents:
19816
diff
changeset
|
1089 |
* <blockquote><pre>{@code |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1090 |
* Lambda(a0:L,a1:I)=>{ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1091 |
* t2:I=foo.test(a1:I); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1092 |
* t3:L=MethodHandleImpl.selectAlternative(t2:I,(MethodHandle(int)int),(MethodHandle(int)int)); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1093 |
* t4:I=MethodHandle.invokeBasic(t3:L,a1:I);t4:I} |
20535
cc85c8626435
8024438: JSR 292 API specification maintenance for JDK 8
jrose
parents:
19816
diff
changeset
|
1094 |
* }</pre></blockquote> |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1095 |
*/ |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1096 |
private Name emitSelectAlternative(Name selectAlternativeName, Name invokeBasicName) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1097 |
assert isStaticallyInvocable(invokeBasicName); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1098 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1099 |
Name receiver = (Name) invokeBasicName.arguments[0]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1100 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1101 |
Label L_fallback = new Label(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1102 |
Label L_done = new Label(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1103 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1104 |
// load test result |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1105 |
emitPushArgument(selectAlternativeName, 0); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1106 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1107 |
// if_icmpne L_fallback |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1108 |
mv.visitJumpInsn(Opcodes.IFEQ, L_fallback); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1109 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1110 |
// invoke selectAlternativeName.arguments[1] |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1111 |
Class<?>[] preForkClasses = localClasses.clone(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1112 |
emitPushArgument(selectAlternativeName, 1); // get 2nd argument of selectAlternative |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1113 |
emitAstoreInsn(receiver.index()); // store the MH in the receiver slot |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1114 |
emitStaticInvoke(invokeBasicName); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1115 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1116 |
// goto L_done |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1117 |
mv.visitJumpInsn(Opcodes.GOTO, L_done); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1118 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1119 |
// L_fallback: |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1120 |
mv.visitLabel(L_fallback); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1121 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1122 |
// invoke selectAlternativeName.arguments[2] |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1123 |
System.arraycopy(preForkClasses, 0, localClasses, 0, preForkClasses.length); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1124 |
emitPushArgument(selectAlternativeName, 2); // get 3rd argument of selectAlternative |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1125 |
emitAstoreInsn(receiver.index()); // store the MH in the receiver slot |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1126 |
emitStaticInvoke(invokeBasicName); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1127 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1128 |
// L_done: |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1129 |
mv.visitLabel(L_done); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1130 |
// for now do not bother to merge typestate; just reset to the dominator state |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1131 |
System.arraycopy(preForkClasses, 0, localClasses, 0, preForkClasses.length); |
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changeset
|
1132 |
|
65b37da18e06
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changeset
|
1133 |
return invokeBasicName; // return what's on stack |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1134 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1135 |
|
23038
bb8b3b23af3a
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changeset
|
1136 |
/** |
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changeset
|
1137 |
* Emit bytecode for the guardWithCatch idiom. |
bb8b3b23af3a
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changeset
|
1138 |
* |
bb8b3b23af3a
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changeset
|
1139 |
* The pattern looks like (Cf. MethodHandleImpl.makeGuardWithCatch): |
bb8b3b23af3a
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parents:
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changeset
|
1140 |
* <blockquote><pre>{@code |
bb8b3b23af3a
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parents:
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changeset
|
1141 |
* guardWithCatch=Lambda(a0:L,a1:L,a2:L,a3:L,a4:L,a5:L,a6:L,a7:L)=>{ |
bb8b3b23af3a
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changeset
|
1142 |
* t8:L=MethodHandle.invokeBasic(a4:L,a6:L,a7:L); |
bb8b3b23af3a
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changeset
|
1143 |
* t9:L=MethodHandleImpl.guardWithCatch(a1:L,a2:L,a3:L,t8:L); |
bb8b3b23af3a
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changeset
|
1144 |
* t10:I=MethodHandle.invokeBasic(a5:L,t9:L);t10:I} |
bb8b3b23af3a
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parents:
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changeset
|
1145 |
* }</pre></blockquote> |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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changeset
|
1146 |
* |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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changeset
|
1147 |
* It is compiled into bytecode equivalent of the following code: |
bb8b3b23af3a
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vlivanov
parents:
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diff
changeset
|
1148 |
* <blockquote><pre>{@code |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1149 |
* try { |
bb8b3b23af3a
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parents:
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diff
changeset
|
1150 |
* return a1.invokeBasic(a6, a7); |
bb8b3b23af3a
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changeset
|
1151 |
* } catch (Throwable e) { |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1152 |
* if (!a2.isInstance(e)) throw e; |
bb8b3b23af3a
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vlivanov
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changeset
|
1153 |
* return a3.invokeBasic(ex, a6, a7); |
bb8b3b23af3a
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parents:
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diff
changeset
|
1154 |
* }} |
bb8b3b23af3a
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parents:
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changeset
|
1155 |
*/ |
26464
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changeset
|
1156 |
private Name emitGuardWithCatch(int pos) { |
23038
bb8b3b23af3a
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parents:
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changeset
|
1157 |
Name args = lambdaForm.names[pos]; |
bb8b3b23af3a
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parents:
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changeset
|
1158 |
Name invoker = lambdaForm.names[pos+1]; |
bb8b3b23af3a
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changeset
|
1159 |
Name result = lambdaForm.names[pos+2]; |
bb8b3b23af3a
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parents:
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changeset
|
1160 |
|
bb8b3b23af3a
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parents:
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diff
changeset
|
1161 |
Label L_startBlock = new Label(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1162 |
Label L_endBlock = new Label(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1163 |
Label L_handler = new Label(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
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diff
changeset
|
1164 |
Label L_done = new Label(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1165 |
|
33841
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
1166 |
Class<?> returnType = result.function.resolvedHandle().type().returnType(); |
1d1d1ea6a5f2
8142334: Improve lazy initialization of java.lang.invoke
redestad
parents:
33674
diff
changeset
|
1167 |
MethodType type = args.function.resolvedHandle().type() |
23038
bb8b3b23af3a
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diff
changeset
|
1168 |
.dropParameterTypes(0,1) |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1169 |
.changeReturnType(returnType); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
22297
diff
changeset
|
1170 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1171 |
mv.visitTryCatchBlock(L_startBlock, L_endBlock, L_handler, "java/lang/Throwable"); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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changeset
|
1172 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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changeset
|
1173 |
// Normal case |
bb8b3b23af3a
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parents:
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diff
changeset
|
1174 |
mv.visitLabel(L_startBlock); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1175 |
// load target |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1176 |
emitPushArgument(invoker, 0); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1177 |
emitPushArguments(args, 1); // skip 1st argument: method handle |
bb8b3b23af3a
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parents:
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changeset
|
1178 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", type.basicType().toMethodDescriptorString(), false); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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changeset
|
1179 |
mv.visitLabel(L_endBlock); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1180 |
mv.visitJumpInsn(Opcodes.GOTO, L_done); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1181 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
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diff
changeset
|
1182 |
// Exceptional case |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1183 |
mv.visitLabel(L_handler); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1184 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1185 |
// Check exception's type |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1186 |
mv.visitInsn(Opcodes.DUP); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
22297
diff
changeset
|
1187 |
// load exception class |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1188 |
emitPushArgument(invoker, 1); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1189 |
mv.visitInsn(Opcodes.SWAP); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
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diff
changeset
|
1190 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "isInstance", "(Ljava/lang/Object;)Z", false); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
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parents:
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diff
changeset
|
1191 |
Label L_rethrow = new Label(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1192 |
mv.visitJumpInsn(Opcodes.IFEQ, L_rethrow); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1193 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1194 |
// Invoke catcher |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1195 |
// load catcher |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1196 |
emitPushArgument(invoker, 2); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1197 |
mv.visitInsn(Opcodes.SWAP); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1198 |
emitPushArguments(args, 1); // skip 1st argument: method handle |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1199 |
MethodType catcherType = type.insertParameterTypes(0, Throwable.class); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1200 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", catcherType.basicType().toMethodDescriptorString(), false); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
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diff
changeset
|
1201 |
mv.visitJumpInsn(Opcodes.GOTO, L_done); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1202 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1203 |
mv.visitLabel(L_rethrow); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1204 |
mv.visitInsn(Opcodes.ATHROW); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1205 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1206 |
mv.visitLabel(L_done); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1207 |
|
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1208 |
return result; |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1209 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1210 |
|
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1211 |
/** |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1212 |
* Emit bytecode for the tryFinally idiom. |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1213 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1214 |
* The pattern looks like (Cf. MethodHandleImpl.makeTryFinally): |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1215 |
* <blockquote><pre>{@code |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1216 |
* // a0: BMH |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1217 |
* // a1: target, a2: cleanup |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1218 |
* // a3: box, a4: unbox |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1219 |
* // a5 (and following): arguments |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1220 |
* tryFinally=Lambda(a0:L,a1:L,a2:L,a3:L,a4:L,a5:L)=>{ |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1221 |
* t6:L=MethodHandle.invokeBasic(a3:L,a5:L); // box the arguments into an Object[] |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1222 |
* t7:L=MethodHandleImpl.tryFinally(a1:L,a2:L,t6:L); // call the tryFinally executor |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1223 |
* t8:L=MethodHandle.invokeBasic(a4:L,t7:L);t8:L} // unbox the result; return the result |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1224 |
* }</pre></blockquote> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1225 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1226 |
* It is compiled into bytecode equivalent to the following code: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1227 |
* <blockquote><pre>{@code |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1228 |
* Throwable t; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1229 |
* Object r; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1230 |
* try { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1231 |
* r = a1.invokeBasic(a5); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1232 |
* } catch (Throwable thrown) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1233 |
* t = thrown; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1234 |
* throw t; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1235 |
* } finally { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1236 |
* r = a2.invokeBasic(t, r, a5); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1237 |
* } |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1238 |
* return r; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1239 |
* }</pre></blockquote> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1240 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1241 |
* Specifically, the bytecode will have the following form (the stack effects are given for the beginnings of |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1242 |
* blocks, and for the situations after executing the given instruction - the code will have a slightly different |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1243 |
* shape if the return type is {@code void}): |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1244 |
* <blockquote><pre>{@code |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1245 |
* TRY: (--) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1246 |
* load target (-- target) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1247 |
* load args (-- args... target) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1248 |
* INVOKEVIRTUAL MethodHandle.invokeBasic (depends) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1249 |
* FINALLY_NORMAL: (-- r) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1250 |
* load cleanup (-- cleanup r) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1251 |
* SWAP (-- r cleanup) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1252 |
* ACONST_NULL (-- t r cleanup) |
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changeset
|
1253 |
* SWAP (-- r t cleanup) |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1254 |
* load args (-- args... r t cleanup) |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1255 |
* INVOKEVIRTUAL MethodHandle.invokeBasic (-- r) |
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changeset
|
1256 |
* GOTO DONE |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1257 |
* CATCH: (-- t) |
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changeset
|
1258 |
* DUP (-- t t) |
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changeset
|
1259 |
* FINALLY_EXCEPTIONAL: (-- t t) |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1260 |
* load cleanup (-- cleanup t t) |
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changeset
|
1261 |
* SWAP (-- t cleanup t) |
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changeset
|
1262 |
* load default for r (-- r t cleanup t) |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1263 |
* load args (-- args... r t cleanup t) |
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changeset
|
1264 |
* INVOKEVIRTUAL MethodHandle.invokeBasic (-- r t) |
f66a89ed6fca
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changeset
|
1265 |
* POP (-- t) |
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parents:
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changeset
|
1266 |
* ATHROW |
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changeset
|
1267 |
* DONE: (-- r) |
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changeset
|
1268 |
* }</pre></blockquote> |
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changeset
|
1269 |
*/ |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1270 |
private Name emitTryFinally(int pos) { |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1271 |
Name args = lambdaForm.names[pos]; |
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changeset
|
1272 |
Name invoker = lambdaForm.names[pos+1]; |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1273 |
Name result = lambdaForm.names[pos+2]; |
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changeset
|
1274 |
|
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changeset
|
1275 |
Label lFrom = new Label(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1276 |
Label lTo = new Label(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1277 |
Label lCatch = new Label(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1278 |
Label lDone = new Label(); |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1279 |
|
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changeset
|
1280 |
Class<?> returnType = result.function.resolvedHandle().type().returnType(); |
f66a89ed6fca
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changeset
|
1281 |
boolean isNonVoid = returnType != void.class; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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changeset
|
1282 |
MethodType type = args.function.resolvedHandle().type() |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1283 |
.dropParameterTypes(0,1) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1284 |
.changeReturnType(returnType); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1285 |
MethodType cleanupType = type.insertParameterTypes(0, Throwable.class); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1286 |
if (isNonVoid) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1287 |
cleanupType = cleanupType.insertParameterTypes(1, returnType); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1288 |
} |
f66a89ed6fca
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parents:
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changeset
|
1289 |
String cleanupDesc = cleanupType.basicType().toMethodDescriptorString(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1290 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1291 |
// exception handler table |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1292 |
mv.visitTryCatchBlock(lFrom, lTo, lCatch, "java/lang/Throwable"); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1293 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1294 |
// TRY: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1295 |
mv.visitLabel(lFrom); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1296 |
emitPushArgument(invoker, 0); // load target |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1297 |
emitPushArguments(args, 1); // load args (skip 0: method handle) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1298 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", type.basicType().toMethodDescriptorString(), false); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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changeset
|
1299 |
mv.visitLabel(lTo); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1300 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1301 |
// FINALLY_NORMAL: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1302 |
emitPushArgument(invoker, 1); // load cleanup |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1303 |
if (isNonVoid) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1304 |
mv.visitInsn(Opcodes.SWAP); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1305 |
} |
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parents:
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changeset
|
1306 |
mv.visitInsn(Opcodes.ACONST_NULL); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1307 |
if (isNonVoid) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1308 |
mv.visitInsn(Opcodes.SWAP); |
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8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1309 |
} |
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parents:
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diff
changeset
|
1310 |
emitPushArguments(args, 1); // load args (skip 0: method handle) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1311 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", cleanupDesc, false); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1312 |
mv.visitJumpInsn(Opcodes.GOTO, lDone); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1313 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1314 |
// CATCH: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1315 |
mv.visitLabel(lCatch); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1316 |
mv.visitInsn(Opcodes.DUP); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1317 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1318 |
// FINALLY_EXCEPTIONAL: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
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diff
changeset
|
1319 |
emitPushArgument(invoker, 1); // load cleanup |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1320 |
mv.visitInsn(Opcodes.SWAP); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
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parents:
38376
diff
changeset
|
1321 |
if (isNonVoid) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
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diff
changeset
|
1322 |
emitZero(BasicType.basicType(returnType)); // load default for result |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
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diff
changeset
|
1323 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1324 |
emitPushArguments(args, 1); // load args (skip 0: method handle) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1325 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", cleanupDesc, false); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1326 |
if (isNonVoid) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1327 |
mv.visitInsn(Opcodes.POP); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1328 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1329 |
mv.visitInsn(Opcodes.ATHROW); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1330 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1331 |
// DONE: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1332 |
mv.visitLabel(lDone); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1333 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1334 |
return result; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1335 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1336 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1337 |
/** |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1338 |
* Emit bytecode for the loop idiom. |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1339 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1340 |
* The pattern looks like (Cf. MethodHandleImpl.loop): |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1341 |
* <blockquote><pre>{@code |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1342 |
* // a0: BMH |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1343 |
* // a1: LoopClauses (containing an array of arrays: inits, steps, preds, finis) |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1344 |
* // a2: box, a3: unbox |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1345 |
* // a4 (and following): arguments |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1346 |
* loop=Lambda(a0:L,a1:L,a2:L,a3:L,a4:L)=>{ |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1347 |
* t5:L=MethodHandle.invokeBasic(a2:L,a4:L); // box the arguments into an Object[] |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1348 |
* t6:L=MethodHandleImpl.loop(bt:L,a1:L,t5:L); // call the loop executor (with supplied types in bt) |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1349 |
* t7:L=MethodHandle.invokeBasic(a3:L,t6:L);t7:L} // unbox the result; return the result |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1350 |
* }</pre></blockquote> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1351 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1352 |
* It is compiled into bytecode equivalent to the code seen in {@link MethodHandleImpl#loop(BasicType[], |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1353 |
* MethodHandleImpl.LoopClauses, Object...)}, with the difference that no arrays |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
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diff
changeset
|
1354 |
* will be used for local state storage. Instead, the local state will be mapped to actual stack slots. |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1355 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1356 |
* Bytecode generation applies an unrolling scheme to enable better bytecode generation regarding local state type |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1357 |
* handling. The generated bytecode will have the following form ({@code void} types are ignored for convenience). |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1358 |
* Assume there are {@code C} clauses in the loop. |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1359 |
* <blockquote><pre>{@code |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1360 |
* PREINIT: ALOAD_1 |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1361 |
* CHECKCAST LoopClauses |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1362 |
* GETFIELD LoopClauses.clauses |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1363 |
* ASTORE clauseDataIndex // place the clauses 2-dimensional array on the stack |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1364 |
* INIT: (INIT_SEQ for clause 1) |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1365 |
* ... |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1366 |
* (INIT_SEQ for clause C) |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1367 |
* LOOP: (LOOP_SEQ for clause 1) |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1368 |
* ... |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1369 |
* (LOOP_SEQ for clause C) |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1370 |
* GOTO LOOP |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1371 |
* DONE: ... |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1372 |
* }</pre></blockquote> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1373 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1374 |
* The {@code INIT_SEQ_x} sequence for clause {@code x} (with {@code x} ranging from {@code 0} to {@code C-1}) has |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1375 |
* the following shape. Assume slot {@code vx} is used to hold the state for clause {@code x}. |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1376 |
* <blockquote><pre>{@code |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1377 |
* INIT_SEQ_x: ALOAD clauseDataIndex |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1378 |
* ICONST_0 |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1379 |
* AALOAD // load the inits array |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1380 |
* ICONST x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1381 |
* AALOAD // load the init handle for clause x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1382 |
* load args |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1383 |
* INVOKEVIRTUAL MethodHandle.invokeBasic |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1384 |
* store vx |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1385 |
* }</pre></blockquote> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1386 |
* <p> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1387 |
* The {@code LOOP_SEQ_x} sequence for clause {@code x} (with {@code x} ranging from {@code 0} to {@code C-1}) has |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1388 |
* the following shape. Again, assume slot {@code vx} is used to hold the state for clause {@code x}. |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1389 |
* <blockquote><pre>{@code |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1390 |
* LOOP_SEQ_x: ALOAD clauseDataIndex |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1391 |
* ICONST_1 |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1392 |
* AALOAD // load the steps array |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1393 |
* ICONST x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1394 |
* AALOAD // load the step handle for clause x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1395 |
* load locals |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1396 |
* load args |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1397 |
* INVOKEVIRTUAL MethodHandle.invokeBasic |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1398 |
* store vx |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1399 |
* ALOAD clauseDataIndex |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1400 |
* ICONST_2 |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1401 |
* AALOAD // load the preds array |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1402 |
* ICONST x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1403 |
* AALOAD // load the pred handle for clause x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1404 |
* load locals |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1405 |
* load args |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1406 |
* INVOKEVIRTUAL MethodHandle.invokeBasic |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1407 |
* IFNE LOOP_SEQ_x+1 // predicate returned false -> jump to next clause |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1408 |
* ALOAD clauseDataIndex |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1409 |
* ICONST_3 |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1410 |
* AALOAD // load the finis array |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1411 |
* ICONST x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1412 |
* AALOAD // load the fini handle for clause x |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1413 |
* load locals |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1414 |
* load args |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1415 |
* INVOKEVIRTUAL MethodHandle.invokeBasic |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1416 |
* GOTO DONE // jump beyond end of clauses to return from loop |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1417 |
* }</pre></blockquote> |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1418 |
*/ |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1419 |
private Name emitLoop(int pos) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1420 |
Name args = lambdaForm.names[pos]; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1421 |
Name invoker = lambdaForm.names[pos+1]; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1422 |
Name result = lambdaForm.names[pos+2]; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1423 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1424 |
// extract clause and loop-local state types |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1425 |
// find the type info in the loop invocation |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1426 |
BasicType[] loopClauseTypes = (BasicType[]) invoker.arguments[0]; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1427 |
Class<?>[] loopLocalStateTypes = Stream.of(loopClauseTypes). |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1428 |
filter(bt -> bt != BasicType.V_TYPE).map(BasicType::basicTypeClass).toArray(Class<?>[]::new); |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1429 |
Class<?>[] localTypes = new Class<?>[loopLocalStateTypes.length + 1]; |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1430 |
localTypes[0] = MethodHandleImpl.LoopClauses.class; |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1431 |
System.arraycopy(loopLocalStateTypes, 0, localTypes, 1, loopLocalStateTypes.length); |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1432 |
|
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1433 |
final int clauseDataIndex = extendLocalsMap(localTypes); |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1434 |
final int firstLoopStateIndex = clauseDataIndex + 1; |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1435 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1436 |
Class<?> returnType = result.function.resolvedHandle().type().returnType(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1437 |
MethodType loopType = args.function.resolvedHandle().type() |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1438 |
.dropParameterTypes(0,1) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1439 |
.changeReturnType(returnType); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1440 |
MethodType loopHandleType = loopType.insertParameterTypes(0, loopLocalStateTypes); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1441 |
MethodType predType = loopHandleType.changeReturnType(boolean.class); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1442 |
MethodType finiType = loopHandleType; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1443 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1444 |
final int nClauses = loopClauseTypes.length; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1445 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1446 |
// indices to invoker arguments to load method handle arrays |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1447 |
final int inits = 1; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1448 |
final int steps = 2; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1449 |
final int preds = 3; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1450 |
final int finis = 4; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1451 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1452 |
Label lLoop = new Label(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1453 |
Label lDone = new Label(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1454 |
Label lNext; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1455 |
|
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1456 |
// PREINIT: |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1457 |
emitPushArgument(MethodHandleImpl.LoopClauses.class, invoker.arguments[1]); |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1458 |
mv.visitFieldInsn(Opcodes.GETFIELD, LOOP_CLAUSES, "clauses", MHARY2); |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1459 |
emitAstoreInsn(clauseDataIndex); |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1460 |
|
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1461 |
// INIT: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1462 |
for (int c = 0, state = 0; c < nClauses; ++c) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1463 |
MethodType cInitType = loopType.changeReturnType(loopClauseTypes[c].basicTypeClass()); |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1464 |
emitLoopHandleInvoke(invoker, inits, c, args, false, cInitType, loopLocalStateTypes, clauseDataIndex, |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1465 |
firstLoopStateIndex); |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1466 |
if (cInitType.returnType() != void.class) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1467 |
emitStoreInsn(BasicType.basicType(cInitType.returnType()), firstLoopStateIndex + state); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1468 |
++state; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1469 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1470 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1471 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1472 |
// LOOP: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1473 |
mv.visitLabel(lLoop); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1474 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1475 |
for (int c = 0, state = 0; c < nClauses; ++c) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1476 |
lNext = new Label(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1477 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1478 |
MethodType stepType = loopHandleType.changeReturnType(loopClauseTypes[c].basicTypeClass()); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1479 |
boolean isVoid = stepType.returnType() == void.class; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1480 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1481 |
// invoke loop step |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1482 |
emitLoopHandleInvoke(invoker, steps, c, args, true, stepType, loopLocalStateTypes, clauseDataIndex, |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1483 |
firstLoopStateIndex); |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1484 |
if (!isVoid) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1485 |
emitStoreInsn(BasicType.basicType(stepType.returnType()), firstLoopStateIndex + state); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1486 |
++state; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1487 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1488 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1489 |
// invoke loop predicate |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1490 |
emitLoopHandleInvoke(invoker, preds, c, args, true, predType, loopLocalStateTypes, clauseDataIndex, |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1491 |
firstLoopStateIndex); |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1492 |
mv.visitJumpInsn(Opcodes.IFNE, lNext); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1493 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1494 |
// invoke fini |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1495 |
emitLoopHandleInvoke(invoker, finis, c, args, true, finiType, loopLocalStateTypes, clauseDataIndex, |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1496 |
firstLoopStateIndex); |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1497 |
mv.visitJumpInsn(Opcodes.GOTO, lDone); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1498 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1499 |
// this is the beginning of the next loop clause |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1500 |
mv.visitLabel(lNext); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1501 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1502 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1503 |
mv.visitJumpInsn(Opcodes.GOTO, lLoop); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1504 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1505 |
// DONE: |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1506 |
mv.visitLabel(lDone); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1507 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1508 |
return result; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1509 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1510 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1511 |
private int extendLocalsMap(Class<?>[] types) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1512 |
int firstSlot = localsMap.length - 1; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1513 |
localsMap = Arrays.copyOf(localsMap, localsMap.length + types.length); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1514 |
localClasses = Arrays.copyOf(localClasses, localClasses.length + types.length); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1515 |
System.arraycopy(types, 0, localClasses, firstSlot, types.length); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1516 |
int index = localsMap[firstSlot - 1] + 1; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1517 |
int lastSlots = 0; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1518 |
for (int i = 0; i < types.length; ++i) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1519 |
localsMap[firstSlot + i] = index; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1520 |
lastSlots = BasicType.basicType(localClasses[firstSlot + i]).basicTypeSlots(); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1521 |
index += lastSlots; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1522 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1523 |
localsMap[localsMap.length - 1] = index - lastSlots; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1524 |
return firstSlot; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1525 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1526 |
|
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1527 |
private void emitLoopHandleInvoke(Name holder, int handles, int clause, Name args, boolean pushLocalState, |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1528 |
MethodType type, Class<?>[] loopLocalStateTypes, int clauseDataSlot, |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1529 |
int firstLoopStateSlot) { |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1530 |
// load handle for clause |
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1531 |
emitPushClauseArray(clauseDataSlot, handles); |
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1532 |
emitIconstInsn(clause); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1533 |
mv.visitInsn(Opcodes.AALOAD); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1534 |
// load loop state (preceding the other arguments) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1535 |
if (pushLocalState) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1536 |
for (int s = 0; s < loopLocalStateTypes.length; ++s) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1537 |
emitLoadInsn(BasicType.basicType(loopLocalStateTypes[s]), firstLoopStateSlot + s); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1538 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1539 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1540 |
// load loop args (skip 0: method handle) |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1541 |
emitPushArguments(args, 1); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1542 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", type.toMethodDescriptorString(), false); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1543 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1544 |
|
41125
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1545 |
private void emitPushClauseArray(int clauseDataSlot, int which) { |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1546 |
emitAloadInsn(clauseDataSlot); |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1547 |
emitIconstInsn(which - 1); |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1548 |
mv.visitInsn(Opcodes.AALOAD); |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1549 |
} |
88d76c8db1fa
8161211: better inlining support for loop bytecode intrinsics
mhaupt
parents:
40559
diff
changeset
|
1550 |
|
39342
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1551 |
private void emitZero(BasicType type) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1552 |
switch (type) { |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1553 |
case I_TYPE: mv.visitInsn(Opcodes.ICONST_0); break; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1554 |
case J_TYPE: mv.visitInsn(Opcodes.LCONST_0); break; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1555 |
case F_TYPE: mv.visitInsn(Opcodes.FCONST_0); break; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1556 |
case D_TYPE: mv.visitInsn(Opcodes.DCONST_0); break; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1557 |
case L_TYPE: mv.visitInsn(Opcodes.ACONST_NULL); break; |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1558 |
default: throw new InternalError("unknown type: " + type); |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1559 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1560 |
} |
f66a89ed6fca
8143211: provide bytecode intrinsics for loop and try/finally executors
mhaupt
parents:
38376
diff
changeset
|
1561 |
|
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1562 |
private void emitPushArguments(Name args, int start) { |
40272
6af4511ee5a4
8163878: Remove unnecessary bridge methods, allocations in java.lang.invoke
redestad
parents:
40258
diff
changeset
|
1563 |
MethodType type = args.function.methodType(); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1564 |
for (int i = start; i < args.arguments.length; i++) { |
40272
6af4511ee5a4
8163878: Remove unnecessary bridge methods, allocations in java.lang.invoke
redestad
parents:
40258
diff
changeset
|
1565 |
emitPushArgument(type.parameterType(i), args.arguments[i]); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1566 |
} |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1567 |
} |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
22297
diff
changeset
|
1568 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1569 |
private void emitPushArgument(Name name, int paramIndex) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1570 |
Object arg = name.arguments[paramIndex]; |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1571 |
Class<?> ptype = name.function.methodType().parameterType(paramIndex); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1572 |
emitPushArgument(ptype, arg); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1573 |
} |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1574 |
|
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1575 |
private void emitPushArgument(Class<?> ptype, Object arg) { |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1576 |
BasicType bptype = basicType(ptype); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1577 |
if (arg instanceof Name) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1578 |
Name n = (Name) arg; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1579 |
emitLoadInsn(n.type, n.index()); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1580 |
emitImplicitConversion(n.type, ptype, n); |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1581 |
} else if ((arg == null || arg instanceof String) && bptype == L_TYPE) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1582 |
emitConst(arg); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1583 |
} else { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1584 |
if (Wrapper.isWrapperType(arg.getClass()) && bptype != L_TYPE) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1585 |
emitConst(arg); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1586 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1587 |
mv.visitLdcInsn(constantPlaceholder(arg)); |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1588 |
emitImplicitConversion(L_TYPE, ptype, arg); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1589 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1590 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1591 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1592 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1593 |
/** |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1594 |
* Store the name to its local, if necessary. |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1595 |
*/ |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1596 |
private void emitStoreResult(Name name) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1597 |
if (name != null && name.type != V_TYPE) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1598 |
// non-void: actually assign |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1599 |
emitStoreInsn(name.type, name.index()); |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1600 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1601 |
} |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1602 |
|
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1603 |
/** |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1604 |
* Emits a return statement from a LF invoker. If required, the result type is cast to the correct return type. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1605 |
*/ |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1606 |
private void emitReturn(Name onStack) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1607 |
// return statement |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1608 |
Class<?> rclass = invokerType.returnType(); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1609 |
BasicType rtype = lambdaForm.returnType(); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1610 |
assert(rtype == basicType(rclass)); // must agree |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1611 |
if (rtype == V_TYPE) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1612 |
// void |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1613 |
mv.visitInsn(Opcodes.RETURN); |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1614 |
// it doesn't matter what rclass is; the JVM will discard any value |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1615 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1616 |
LambdaForm.Name rn = lambdaForm.names[lambdaForm.result]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1617 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1618 |
// put return value on the stack if it is not already there |
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1619 |
if (rn != onStack) { |
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1620 |
emitLoadInsn(rtype, lambdaForm.result); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1621 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1622 |
|
26464
65b37da18e06
8037209: Improvements and cleanups to bytecode assembly for lambda forms
vlivanov
parents:
25991
diff
changeset
|
1623 |
emitImplicitConversion(rtype, rclass, rn); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1624 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1625 |
// generate actual return statement |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1626 |
emitReturnInsn(rtype); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1627 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1628 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1629 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1630 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1631 |
* Emit a type conversion bytecode casting from "from" to "to". |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1632 |
*/ |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1633 |
private void emitPrimCast(Wrapper from, Wrapper to) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1634 |
// Here's how. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1635 |
// - indicates forbidden |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1636 |
// <-> indicates implicit |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1637 |
// to ----> boolean byte short char int long float double |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1638 |
// from boolean <-> - - - - - - - |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1639 |
// byte - <-> i2s i2c <-> i2l i2f i2d |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1640 |
// short - i2b <-> i2c <-> i2l i2f i2d |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1641 |
// char - i2b i2s <-> <-> i2l i2f i2d |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1642 |
// int - i2b i2s i2c <-> i2l i2f i2d |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1643 |
// long - l2i,i2b l2i,i2s l2i,i2c l2i <-> l2f l2d |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1644 |
// float - f2i,i2b f2i,i2s f2i,i2c f2i f2l <-> f2d |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1645 |
// double - d2i,i2b d2i,i2s d2i,i2c d2i d2l d2f <-> |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1646 |
if (from == to) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1647 |
// no cast required, should be dead code anyway |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1648 |
return; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1649 |
} |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1650 |
if (from.isSubwordOrInt()) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1651 |
// cast from {byte,short,char,int} to anything |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1652 |
emitI2X(to); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1653 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1654 |
// cast from {long,float,double} to anything |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1655 |
if (to.isSubwordOrInt()) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1656 |
// cast to {byte,short,char,int} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1657 |
emitX2I(from); |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1658 |
if (to.bitWidth() < 32) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1659 |
// targets other than int require another conversion |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1660 |
emitI2X(to); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1661 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1662 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1663 |
// cast to {long,float,double} - this is verbose |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1664 |
boolean error = false; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1665 |
switch (from) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1666 |
case LONG: |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1667 |
switch (to) { |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1668 |
case FLOAT: mv.visitInsn(Opcodes.L2F); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1669 |
case DOUBLE: mv.visitInsn(Opcodes.L2D); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1670 |
default: error = true; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1671 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1672 |
break; |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1673 |
case FLOAT: |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1674 |
switch (to) { |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1675 |
case LONG : mv.visitInsn(Opcodes.F2L); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1676 |
case DOUBLE: mv.visitInsn(Opcodes.F2D); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1677 |
default: error = true; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1678 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1679 |
break; |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1680 |
case DOUBLE: |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1681 |
switch (to) { |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1682 |
case LONG : mv.visitInsn(Opcodes.D2L); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1683 |
case FLOAT: mv.visitInsn(Opcodes.D2F); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1684 |
default: error = true; break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1685 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1686 |
break; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1687 |
default: |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1688 |
error = true; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1689 |
break; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1690 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1691 |
if (error) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1692 |
throw new IllegalStateException("unhandled prim cast: " + from + "2" + to); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1693 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1694 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1695 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1696 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1697 |
|
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1698 |
private void emitI2X(Wrapper type) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1699 |
switch (type) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1700 |
case BYTE: mv.visitInsn(Opcodes.I2B); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1701 |
case SHORT: mv.visitInsn(Opcodes.I2S); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1702 |
case CHAR: mv.visitInsn(Opcodes.I2C); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1703 |
case INT: /* naught */ break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1704 |
case LONG: mv.visitInsn(Opcodes.I2L); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1705 |
case FLOAT: mv.visitInsn(Opcodes.I2F); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1706 |
case DOUBLE: mv.visitInsn(Opcodes.I2D); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1707 |
case BOOLEAN: |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1708 |
// For compatibility with ValueConversions and explicitCastArguments: |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1709 |
mv.visitInsn(Opcodes.ICONST_1); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1710 |
mv.visitInsn(Opcodes.IAND); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1711 |
break; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1712 |
default: throw new InternalError("unknown type: " + type); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1713 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1714 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1715 |
|
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1716 |
private void emitX2I(Wrapper type) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1717 |
switch (type) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1718 |
case LONG: mv.visitInsn(Opcodes.L2I); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1719 |
case FLOAT: mv.visitInsn(Opcodes.F2I); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1720 |
case DOUBLE: mv.visitInsn(Opcodes.D2I); break; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1721 |
default: throw new InternalError("unknown type: " + type); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1722 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1723 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1724 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1725 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1726 |
* Generate bytecode for a LambdaForm.vmentry which calls interpretWithArguments. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1727 |
*/ |
34429
8893c723602e
8072844: Use more efficient LambdaForm type representation
mhaupt
parents:
34384
diff
changeset
|
1728 |
static MemberName generateLambdaFormInterpreterEntryPoint(MethodType mt) { |
8893c723602e
8072844: Use more efficient LambdaForm type representation
mhaupt
parents:
34384
diff
changeset
|
1729 |
assert(isValidSignature(basicTypeSignature(mt))); |
8893c723602e
8072844: Use more efficient LambdaForm type representation
mhaupt
parents:
34384
diff
changeset
|
1730 |
String name = "interpret_"+basicTypeChar(mt.returnType()); |
8893c723602e
8072844: Use more efficient LambdaForm type representation
mhaupt
parents:
34384
diff
changeset
|
1731 |
MethodType type = mt; // includes leading argument |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1732 |
type = type.changeParameterType(0, MethodHandle.class); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1733 |
InvokerBytecodeGenerator g = new InvokerBytecodeGenerator("LFI", name, type); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1734 |
return g.loadMethod(g.generateLambdaFormInterpreterEntryPointBytes()); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1735 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1736 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1737 |
private byte[] generateLambdaFormInterpreterEntryPointBytes() { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1738 |
classFilePrologue(); |
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
1739 |
methodPrologue(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1740 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1741 |
// Suppress this method in backtraces displayed to the user. |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
1742 |
mv.visitAnnotation(LF_HIDDEN_SIG, true); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1743 |
|
14852 | 1744 |
// Don't inline the interpreter entry. |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
1745 |
mv.visitAnnotation(DONTINLINE_SIG, true); |
14852 | 1746 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1747 |
// create parameter array |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1748 |
emitIconstInsn(invokerType.parameterCount()); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1749 |
mv.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/Object"); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1750 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1751 |
// fill parameter array |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1752 |
for (int i = 0; i < invokerType.parameterCount(); i++) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1753 |
Class<?> ptype = invokerType.parameterType(i); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1754 |
mv.visitInsn(Opcodes.DUP); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1755 |
emitIconstInsn(i); |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1756 |
emitLoadInsn(basicType(ptype), i); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1757 |
// box if primitive type |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1758 |
if (ptype.isPrimitive()) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1759 |
emitBoxing(Wrapper.forPrimitiveType(ptype)); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1760 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1761 |
mv.visitInsn(Opcodes.AASTORE); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1762 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1763 |
// invoke |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1764 |
emitAloadInsn(0); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1765 |
mv.visitFieldInsn(Opcodes.GETFIELD, MH, "form", "Ljava/lang/invoke/LambdaForm;"); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1766 |
mv.visitInsn(Opcodes.SWAP); // swap form and array; avoid local variable |
22297 | 1767 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, LF, "interpretWithArguments", "([Ljava/lang/Object;)Ljava/lang/Object;", false); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1768 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1769 |
// maybe unbox |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1770 |
Class<?> rtype = invokerType.returnType(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1771 |
if (rtype.isPrimitive() && rtype != void.class) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1772 |
emitUnboxing(Wrapper.forPrimitiveType(rtype)); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1773 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1774 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1775 |
// return statement |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1776 |
emitReturnInsn(basicType(rtype)); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1777 |
|
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
1778 |
methodEpilogue(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1779 |
bogusMethod(invokerType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1780 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1781 |
final byte[] classFile = cw.toByteArray(); |
44591
b9bf065070fe
8178387: Reduce memory churn when creating java.lang.invoke entities
redestad
parents:
44590
diff
changeset
|
1782 |
maybeDump(classFile); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1783 |
return classFile; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1784 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1785 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1786 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1787 |
* Generate bytecode for a NamedFunction invoker. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1788 |
*/ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1789 |
static MemberName generateNamedFunctionInvoker(MethodTypeForm typeForm) { |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1790 |
MethodType invokerType = NamedFunction.INVOKER_METHOD_TYPE; |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1791 |
String invokerName = "invoke_" + shortenSignature(basicTypeSignature(typeForm.erasedType())); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1792 |
InvokerBytecodeGenerator g = new InvokerBytecodeGenerator("NFI", invokerName, invokerType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1793 |
return g.loadMethod(g.generateNamedFunctionInvokerImpl(typeForm)); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1794 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1795 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1796 |
private byte[] generateNamedFunctionInvokerImpl(MethodTypeForm typeForm) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1797 |
MethodType dstType = typeForm.erasedType(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1798 |
classFilePrologue(); |
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
1799 |
methodPrologue(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1800 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1801 |
// Suppress this method in backtraces displayed to the user. |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
1802 |
mv.visitAnnotation(LF_HIDDEN_SIG, true); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1803 |
|
14852 | 1804 |
// Force inlining of this invoker method. |
36016
e1580bae8eb5
8144931: Assert class signatures are correct and refer to valid classes
srastogi
parents:
35256
diff
changeset
|
1805 |
mv.visitAnnotation(FORCEINLINE_SIG, true); |
14852 | 1806 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1807 |
// Load receiver |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1808 |
emitAloadInsn(0); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1809 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1810 |
// Load arguments from array |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1811 |
for (int i = 0; i < dstType.parameterCount(); i++) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1812 |
emitAloadInsn(1); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1813 |
emitIconstInsn(i); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1814 |
mv.visitInsn(Opcodes.AALOAD); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1815 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1816 |
// Maybe unbox |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1817 |
Class<?> dptype = dstType.parameterType(i); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1818 |
if (dptype.isPrimitive()) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1819 |
Wrapper dstWrapper = Wrapper.forBasicType(dptype); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1820 |
Wrapper srcWrapper = dstWrapper.isSubwordOrInt() ? Wrapper.INT : dstWrapper; // narrow subword from int |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1821 |
emitUnboxing(srcWrapper); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1822 |
emitPrimCast(srcWrapper, dstWrapper); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1823 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1824 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1825 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1826 |
// Invoke |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1827 |
String targetDesc = dstType.basicType().toMethodDescriptorString(); |
22297 | 1828 |
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, MH, "invokeBasic", targetDesc, false); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1829 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1830 |
// Box primitive types |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1831 |
Class<?> rtype = dstType.returnType(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1832 |
if (rtype != void.class && rtype.isPrimitive()) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1833 |
Wrapper srcWrapper = Wrapper.forBasicType(rtype); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1834 |
Wrapper dstWrapper = srcWrapper.isSubwordOrInt() ? Wrapper.INT : srcWrapper; // widen subword to int |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1835 |
// boolean casts not allowed |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1836 |
emitPrimCast(srcWrapper, dstWrapper); |
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1837 |
emitBoxing(dstWrapper); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1838 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1839 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1840 |
// If the return type is void we return a null reference. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1841 |
if (rtype == void.class) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1842 |
mv.visitInsn(Opcodes.ACONST_NULL); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1843 |
} |
24572
5c9e5961d21c
8037210: Get rid of char-based descriptions 'J' of basic types
vlivanov
parents:
23918
diff
changeset
|
1844 |
emitReturnInsn(L_TYPE); // NOTE: NamedFunction invokers always return a reference value. |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1845 |
|
40211
8b78c9b31244
8163369: Enable generating DMH classes at link time
redestad
parents:
39483
diff
changeset
|
1846 |
methodEpilogue(); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1847 |
bogusMethod(dstType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1848 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1849 |
final byte[] classFile = cw.toByteArray(); |
44591
b9bf065070fe
8178387: Reduce memory churn when creating java.lang.invoke entities
redestad
parents:
44590
diff
changeset
|
1850 |
maybeDump(classFile); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1851 |
return classFile; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1852 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1853 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1854 |
/** |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1855 |
* Emit a bogus method that just loads some string constants. This is to get the constants into the constant pool |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1856 |
* for debugging purposes. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1857 |
*/ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1858 |
private void bogusMethod(Object... os) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1859 |
if (DUMP_CLASS_FILES) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1860 |
mv = cw.visitMethod(Opcodes.ACC_STATIC, "dummy", "()V", null, null); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1861 |
for (Object o : os) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1862 |
mv.visitLdcInsn(o.toString()); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1863 |
mv.visitInsn(Opcodes.POP); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1864 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1865 |
mv.visitInsn(Opcodes.RETURN); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1866 |
mv.visitMaxs(0, 0); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1867 |
mv.visitEnd(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1868 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1869 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
diff
changeset
|
1870 |
} |