74 lines
2.6 KiB
Java
74 lines
2.6 KiB
Java
/*
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* Copyright (c) 2024, 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 8330247
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* @summary Check that Reduce Allocation Merges doesn't try to reduce non-exact allocations.
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* @library /test/lib /
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* @modules java.base/jdk.internal.misc
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* @requires vm.debug & vm.flagless & vm.compiler2.enabled & vm.opt.final.EliminateAllocations
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* @run main/othervm -XX:CompileCommand=compileonly,*TestReduceAllocationAndNonExactAllocate*::test
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* -XX:CompileCommand=compileonly,*::allocateInstance
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* -XX:CompileCommand=dontinline,*TestReduceAllocationAndNonExactAllocate*::*
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* -XX:+UnlockDiagnosticVMOptions
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* -XX:+TraceReduceAllocationMerges
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* -XX:-TieredCompilation
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* -Xbatch
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* -Xcomp
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* -server
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* compiler.c2.TestReduceAllocationAndNonExactAllocate
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*/
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package compiler.c2;
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import jdk.internal.misc.Unsafe;
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public class TestReduceAllocationAndNonExactAllocate {
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private static final Unsafe UNSAFE = Unsafe.getUnsafe();
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public static void main(String[] args) {
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try {
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if (test(20, Integer.class) != 2032) {
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throw new RuntimeException("Expected the value to be 2032.");
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}
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}
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catch (InstantiationException e) {
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e.printStackTrace();
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}
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}
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public static int test(int val, Class<?> c) throws InstantiationException {
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Object p = null;
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if (val == 20) {
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p = UNSAFE.allocateInstance(c);
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}
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dummy();
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return p != null ? 2032 : 3242;
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}
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static int dummy() { return 42; }
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}
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