88 lines
2.3 KiB
Java
88 lines
2.3 KiB
Java
/*
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* Copyright (c) 2023, 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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package compiler.c2.irTests;
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import compiler.lib.ir_framework.*;
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/*
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* @test
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* @bug 8309978
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* @summary [x64] Fix useless padding
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* @library /test/lib /
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* @requires vm.compiler2.enabled
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* @requires (os.simpleArch == "x64")
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* @run driver compiler.c2.irTests.TestPadding
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*/
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public class TestPadding {
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public static void main(String[] args) {
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TestFramework.runWithFlags("-XX:+IntelJccErratumMitigation");
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}
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@Run(test = "test")
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public static void test_runner() {
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test(42);
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tpf.b1++; // to take both branches in test()
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}
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@Test
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@IR(counts = { IRNode.NOP, "<=1" })
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static int test(int i) {
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TestPadding tp = tpf;
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if (tp.b1 > 42) { // Big 'cmpb' instruction at offset 0x30
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tp.i1 = i;
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}
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return i;
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}
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static TestPadding t1;
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static TestPadding t2;
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static TestPadding t3;
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static TestPadding t4;
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static TestPadding tpf = new TestPadding(); // Static field offset > 128
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int i1;
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long l1;
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long l2;
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long l3;
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long l4;
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long l5;
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long l6;
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long l7;
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long l8;
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long l9;
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long l10;
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long l11;
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long l12;
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long l13;
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long l14;
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long l15;
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long l16;
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byte b1 = 1; // Field offset > 128
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}
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