author | psandoz |
Mon, 23 May 2016 12:48:18 +0200 | |
changeset 38537 | ba5503adca64 |
parent 30846 | 2b3f379840f0 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 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. |
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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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* @test |
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* @bug 6991980 |
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* @summary polymorphic signature calls don't share the same CP entries |
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* @modules jdk.jdeps/com.sun.tools.classfile |
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* @run main TestCP |
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*/ |
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import com.sun.tools.classfile.Instruction; |
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import com.sun.tools.classfile.Attribute; |
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import com.sun.tools.classfile.ClassFile; |
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import com.sun.tools.classfile.Code_attribute; |
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import com.sun.tools.classfile.ConstantPool.*; |
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import com.sun.tools.classfile.Method; |
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import java.lang.invoke.*; |
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import java.io.*; |
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public class TestCP { |
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static class TestMethodHandleInvokeExact { |
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static final String PS_TYPE = "(Ljava/lang/String;IC)Ljava/lang/Number;"; |
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void test(MethodHandle mh) throws Throwable { |
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Number n = (Number)mh.invokeExact("daddy",1,'n'); |
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n = (Number)mh.invokeExact("bunny",1,'d'); |
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n = (Number)(mh.invokeExact("foo",1,'d')); |
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n = (Number)((mh.invokeExact("bar",1,'d'))); |
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} |
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} |
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static class TestVarHandleGet { |
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static final String PS_TYPE = "(Ljava/lang/String;IC)Ljava/lang/Number;"; |
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// Test with sig-poly return type |
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void test(VarHandle vh) throws Throwable { |
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Number n = (Number)vh.get("daddy",1,'n'); |
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n = (Number)vh.get("bunny",1,'d'); |
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n = (Number)(vh.get("foo",1,'d')); |
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n = (Number)((vh.get("bar",1,'d'))); |
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} |
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} |
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static class TestVarHandleSet { |
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static final String PS_TYPE = "(Ljava/lang/String;IC)V"; |
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// Test with non-sig-poly void return type |
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void test(VarHandle vh) throws Throwable { |
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vh.set("daddy",1,'n'); |
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vh.set("bunny",1,'d'); |
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vh.set("foo",1,'d'); |
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vh.set("bar",1,'d'); |
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} |
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} |
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static class TestVarHandleCompareAndSet { |
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static final String PS_TYPE = "(Ljava/lang/String;IC)Z"; |
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// Test with non-sig-poly boolean return type |
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void test(VarHandle vh) throws Throwable { |
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boolean r = vh.compareAndSet("daddy",1,'n'); |
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r = vh.compareAndSet("bunny",1,'d'); |
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r = (vh.compareAndSet("foo",1,'d')); |
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r = ((vh.compareAndSet("bar",1,'d'))); |
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} |
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} |
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static final int PS_CALLS_COUNT = 4; |
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static final String TEST_METHOD_NAME = "test"; |
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public static void main(String... args) throws Exception { |
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new TestCP().run(); |
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} |
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public void run() throws Exception { |
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verifySigPolyInvokeVirtual( |
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getTestFile(TestMethodHandleInvokeExact.class), |
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TestMethodHandleInvokeExact.PS_TYPE); |
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verifySigPolyInvokeVirtual( |
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getTestFile(TestVarHandleGet.class), |
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TestVarHandleGet.PS_TYPE); |
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verifySigPolyInvokeVirtual( |
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getTestFile(TestVarHandleSet.class), |
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TestVarHandleSet.PS_TYPE); |
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verifySigPolyInvokeVirtual( |
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getTestFile(TestVarHandleCompareAndSet.class), |
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TestVarHandleCompareAndSet.PS_TYPE); |
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} |
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static File getTestFile(Class<?> c) { |
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String workDir = System.getProperty("test.classes"); |
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return new File(workDir, getTestName(c)); |
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} |
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static String getTestName(Class<?> c) { |
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return c.getName() + ".class"; |
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} |
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void verifySigPolyInvokeVirtual(File f, String psType) { |
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System.err.println("verify: " + f); |
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try { |
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int count = 0; |
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ClassFile cf = ClassFile.read(f); |
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Method testMethod = null; |
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for (Method m : cf.methods) { |
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131 |
if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) { |
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132 |
testMethod = m; |
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133 |
break; |
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134 |
} |
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135 |
} |
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136 |
if (testMethod == null) { |
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137 |
throw new Error("Test method not found"); |
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138 |
} |
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139 |
Code_attribute ea = (Code_attribute)testMethod.attributes.get(Attribute.Code); |
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140 |
if (testMethod == null) { |
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141 |
throw new Error("Code attribute for test() method not found"); |
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142 |
} |
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143 |
int instr_count = 0; |
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144 |
int cp_entry = -1; |
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145 |
|
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146 |
for (Instruction i : ea.getInstructions()) { |
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147 |
if (i.getMnemonic().equals("invokevirtual")) { |
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148 |
instr_count++; |
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149 |
if (cp_entry == -1) { |
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150 |
cp_entry = i.getUnsignedShort(1); |
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151 |
} else if (cp_entry != i.getUnsignedShort(1)) { |
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152 |
throw new Error("Unexpected CP entry in polymorphic signature call"); |
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153 |
} |
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154 |
CONSTANT_Methodref_info methRef = |
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155 |
(CONSTANT_Methodref_info)cf.constant_pool.get(cp_entry); |
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156 |
String type = methRef.getNameAndTypeInfo().getType(); |
38537
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8149821: Add VarHandle signature-polymorphic invocation byte code tests
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157 |
if (!type.equals(psType)) { |
6934
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158 |
throw new Error("Unexpected type in polymorphic signature call: " + type); |
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|
159 |
} |
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|
160 |
} |
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|
161 |
} |
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|
162 |
if (instr_count != PS_CALLS_COUNT) { |
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|
163 |
throw new Error("Wrong number of polymorphic signature call found: " + instr_count); |
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|
164 |
} |
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|
165 |
} catch (Exception e) { |
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|
166 |
e.printStackTrace(); |
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|
167 |
throw new Error("error reading " + f +": " + e); |
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|
168 |
} |
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|
169 |
} |
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|
170 |
} |