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Allow deoptimization inside method handle.
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52 changes: 52 additions & 0 deletions
52
...spot.test/src/org/graalvm/compiler/hotspot/test/HotSpotMethodHandleNonStaticCallTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /* | ||
| * Copyright (c) 2019, 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. Oracle designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| * or visit www.oracle.com if you need additional information or have any | ||
| * questions. | ||
| */ | ||
| package org.graalvm.compiler.hotspot.test; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.List; | ||
|
|
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| import org.graalvm.compiler.core.test.SubprocessTest; | ||
| import org.junit.Test; | ||
|
|
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| public class HotSpotMethodHandleNonStaticCallTest extends SubprocessTest { | ||
|
|
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| @Override | ||
| public void configSubprocess(List<String> vmArgs) { | ||
| // This will prevent inlining of the invocation to MethodHandle.invokeBasic at | ||
| // LambdaForm$MH.invoke_MT, and leave a virtual direct polymorphic signature | ||
| // call in the emitted code. We expect the PcDesc of this call to be with 'bits=2', i.e., | ||
| // with the PCDESC_is_method_handle_invoke bit set. | ||
| vmArgs.add("-XX:CompileCommand=dontinline,java/lang/invoke/LambdaForm$DMH.invokeVirtual_L_V"); | ||
| } | ||
|
|
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| @Test | ||
| public void testInSubprocess() throws InterruptedException, IOException { | ||
| // To manually investigate, pass -DHotSpotMethodHandleNonStaticCallTest.Subprocess=true, | ||
| // -XX:CompileCommand='print,*.invokeDoNothing', and the added command at configSubprocess. | ||
| // You may need a fast debug hotspot build to view the PcDesc flags. | ||
| launchSubprocess(() -> test(getResolvedJavaMethod(HotSpotMethodHandleTest.class, "invokeDoNothing"), new HotSpotMethodHandleTest())); | ||
| } | ||
|
|
||
| } |
52 changes: 52 additions & 0 deletions
52
...hotspot.test/src/org/graalvm/compiler/hotspot/test/HotSpotMethodHandleStaticCallTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /* | ||
| * Copyright (c) 2019, 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. Oracle designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| * or visit www.oracle.com if you need additional information or have any | ||
| * questions. | ||
| */ | ||
| package org.graalvm.compiler.hotspot.test; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.List; | ||
|
|
||
| import org.graalvm.compiler.core.test.SubprocessTest; | ||
| import org.junit.Test; | ||
|
|
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| public class HotSpotMethodHandleStaticCallTest extends SubprocessTest { | ||
|
|
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| @Override | ||
| public void configSubprocess(List<String> vmArgs) { | ||
| // This will prevent inlining of the invocation to MethodHandle.invoke at | ||
| // HotSpotMethodHandleTest.invokeDoNothing, and leave a static direct polymorphic signature | ||
| // call in the emitted code. We expect the PcDesc of this call to be with 'bits=0', i.e., | ||
| // with the PCDESC_is_method_handle_invoke bit unset. | ||
| vmArgs.add("-XX:CompileCommand=dontinline,java/lang/invoke/LambdaForm$MH.invoke_MT"); | ||
| } | ||
|
|
||
| @Test | ||
| public void testInSubprocess() throws InterruptedException, IOException { | ||
| // To manually investigate, pass -DHotSpotMethodHandleStaticCallTest.Subprocess=true, | ||
| // -XX:CompileCommand='print,*.invokeDoNothing', and the added command at configSubprocess. | ||
| // You may need a fast debug hotspot build to view the PcDesc flags. | ||
| launchSubprocess(() -> test(getResolvedJavaMethod(HotSpotMethodHandleTest.class, "invokeDoNothing"), new HotSpotMethodHandleTest())); | ||
| } | ||
|
|
||
| } |
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