8136421: JEP 243: Java-Level JVM Compiler Interface

Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett
2025-08-26 06:14:49 +02:00 · 2015-10-08 12:49:30 -10:00 · 2015-10-08 12:49:30 -10:00 · 16526e000e
commit 16526e000e
parent f5b4bb46f5
505 changed files with 50394 additions and 915 deletions
--- a/hotspot/test/compiler/jvmci/compilerToVM/GetBytecodeTest.java
+++ b/hotspot/test/compiler/jvmci/compilerToVM/GetBytecodeTest.java
@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/**
+ * @test
+ * @bug 8136421
+ * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
+ * @library /testlibrary /../../test/lib /
+ * @compile ../common/CompilerToVMHelper.java
+ * @run main ClassFileInstaller jdk.vm.ci.hotspot.CompilerToVMHelper
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
+ *      -Xbootclasspath/a:.
+ *      compiler.jvmci.compilerToVM.GetBytecodeTest
+ */
+
+package compiler.jvmci.compilerToVM;
+
+import compiler.jvmci.common.CTVMUtilities;
+import compiler.jvmci.common.testcases.TestCase;
+import java.lang.reflect.Executable;
+import java.lang.reflect.Modifier;
+import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
+import jdk.vm.ci.hotspot.CompilerToVMHelper;
+import jdk.internal.org.objectweb.asm.Opcodes;
+import jdk.test.lib.Asserts;
+
+public class GetBytecodeTest {
+
+    public static void main(String[] args) {
+        TestCase.getAllExecutables()
+                .forEach(GetBytecodeTest::runSanityTest);
+    }
+
+    private static void runSanityTest(Executable aMethod) {
+        HotSpotResolvedJavaMethodImpl method = CTVMUtilities
+                .getResolvedMethod(aMethod);
+        byte[] bytecode = CompilerToVMHelper.getBytecode(method);
+
+        int mods = aMethod.getModifiers();
+        boolean shouldHasZeroLength = Modifier.isAbstract(mods)
+                || Modifier.isNative(mods);
+        boolean correctLength = (bytecode.length == 0 && shouldHasZeroLength)
+                || (bytecode.length > 0 && !shouldHasZeroLength);
+
+        Asserts.assertTrue(correctLength, "Bytecode of '" + aMethod + "' has "
+                + bytecode.length + " length");
+
+        if (!shouldHasZeroLength) {
+            Asserts.assertTrue(containsReturn(bytecode), "Bytecode of '"
+                    + aMethod + "' doesn't have any return statement");
+        }
+    }
+
+    private static boolean containsReturn(byte[] bytecode) {
+        for (byte b : bytecode) {
+            //  cast unsigned byte to int
+            int value = (int) b & 0x000000FF;
+            switch (value) {
+                case Opcodes.RET:
+                case Opcodes.ARETURN:
+                case Opcodes.IRETURN:
+                case Opcodes.LRETURN:
+                case Opcodes.FRETURN:
+                case Opcodes.DRETURN:
+                case Opcodes.RETURN:
+                    return true;
+            }
+        }
+        return false;
+    }
+}