| /* |
| * Copyright (c) 2011, 2020, 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 |
| * |
| * @summary converted from VM Testbase vm/mlvm/meth/stress/compiler/inlineMHTarget. |
| * VM Testbase keywords: [feature_mlvm, nonconcurrent] |
| * VM Testbase readme: |
| * DESCRIPTION |
| * The test creates MH to short methods that are likely to be inlined and |
| * verifies that they are inlined into MH code correctly. |
| * See vm.mlvm.meth.stress.java.sequences.Test for details on MH sequences. |
| * |
| * @library /vmTestbase |
| * /test/lib |
| * |
| * @comment build test class and indify classes |
| * @build vm.mlvm.meth.stress.compiler.inlineMHTarget.Test |
| * @run driver vm.mlvm.share.IndifiedClassesBuilder |
| * |
| * @run main/othervm vm.mlvm.meth.stress.compiler.inlineMHTarget.Test -stressIterationsFactor 100 |
| */ |
| |
| package vm.mlvm.meth.stress.compiler.inlineMHTarget; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodHandles.Lookup; |
| import java.lang.invoke.MethodType; |
| |
| import nsk.share.test.Stresser; |
| import vm.mlvm.share.Env; |
| import vm.mlvm.share.MlvmTest; |
| |
| // TODO: check compilation using vm.mlvm.share.comp framework |
| // TODO: enhance to check NxN primitive types |
| public class Test extends MlvmTest { |
| |
| private static final int ITERATIONS = 10000; // Should be enough to trigger compilation |
| |
| private static final int THE_CONSTANT = 42; |
| private int field = 96; |
| |
| static int i(int i) { return i; } |
| static int k(int i) { return THE_CONSTANT; } |
| int getter() { return this.field; } |
| |
| int iplusk(int i) { return i(i) + k(i) + getter(); } |
| |
| static int mh_iplusk(MethodHandle a, MethodHandle b, MethodHandle c, int i) throws Throwable { |
| return (int) a.invokeExact(i) + (int) b.invokeExact(i) + (int) c.invokeExact(); |
| } |
| |
| @Override |
| public boolean run() throws Throwable { |
| Lookup l = MethodHandles.lookup(); |
| MethodHandle ipluskMH = l.findVirtual( |
| Test.class, "iplusk", MethodType.methodType(int.class, int.class) |
| ).bindTo(this); |
| |
| MethodHandle iMH = MethodHandles.identity(int.class); |
| MethodHandle kMH = MethodHandles.dropArguments(MethodHandles.constant(int.class, THE_CONSTANT), 0, int.class); |
| MethodHandle getterMH = l.findGetter(Test.class, "field", int.class).bindTo(this); |
| MethodHandle mh_ipluskMH = MethodHandles.insertArguments( |
| l.findStatic(Test.class, "mh_iplusk", MethodType.methodType(int.class, MethodHandle.class, MethodHandle.class, MethodHandle.class, int.class)), |
| 0, iMH, kMH, getterMH); |
| |
| int mh1Result = 0, mh2Result = 0, directResult = 0; |
| Stresser s = createStresser(); |
| s.start(1); |
| try { |
| while ( s.continueExecution() ) { |
| for (int i = 0; i < ITERATIONS; i++) { |
| s.iteration(); |
| mh1Result += (int) ipluskMH.invokeExact(i); |
| mh2Result += (int) mh_ipluskMH.invokeExact(i); |
| directResult += iplusk(i); |
| } |
| } |
| } finally { |
| s.finish(); |
| } |
| |
| if (mh1Result != directResult || mh2Result != directResult) { |
| Env.complain("Sum computed using MH 1=" + mh1Result |
| + "; Sum computed using MH 2=" + mh2Result |
| + "; using direct calls=" + directResult); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| public static void main(String[] args) { |
| MlvmTest.launch(args); |
| } |
| } |