72 lines
2.1 KiB
Java
72 lines
2.1 KiB
Java
/*
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* Copyright (c) 2024, Red Hat 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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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 8330163
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* @summary C2: improve CMoveNode::Value() when condition is always true or false
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* @library /test/lib /
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* @run driver compiler.c2.irTests.TestCMoveCCP
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*/
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public class TestCMoveCCP {
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private static volatile int volatileField;
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public static void main(String[] args) {
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TestFramework.run();
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}
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@Test
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@IR(failOn = { IRNode.COUNTED_LOOP, IRNode.LOOP })
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private static void test1() {
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int i = -1;
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testHelper1(i);
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}
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@ForceInline
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private static void testHelper1(int i) {
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do {
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if (i != 1) {
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if (i < 0) { // Converted to CMoveI
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i = 50;
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}
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volatileField = 42;
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}
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i *= 2;
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// i = 100 on first iteration when called from test1
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} while (i != 100);
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}
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@Run(test = "test1")
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@Warmup(10000)
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private static void testRunner1() {
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test1();
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testHelper1(1);
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}
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}
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