8e0e188abd
Refresh iterator and start from the beginning while there is progress when removing dead regions. Reviewed-by: kvn
64 lines
2.0 KiB
Java
64 lines
2.0 KiB
Java
/*
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* Copyright (c) 2018, 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 8210387
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* @summary Test removal of unreachable regions during CCP.
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* @library /test/lib
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* @run main/othervm -Xcomp -XX:-TieredCompilation
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* -XX:CompileOnly=compiler.c2.TestUnreachableRegionDuringCCP::test
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* compiler.c2.TestUnreachableRegionDuringCCP
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*/
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package compiler.c2;
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import jdk.test.lib.Asserts;
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public class TestUnreachableRegionDuringCCP {
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static int iFld1 = -1;
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static int iFld2 = -1;
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static int iArrFld[] = new int[100];
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public static void test() {
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int i = 1;
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do {
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iArrFld[i] = iFld1;
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iFld1 = 42;
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for (int j = 1; j < 5; j++) {
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if (i != 0) {
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return; // Always returns
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}
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iFld2 += j;
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}
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} while (++i < 10);
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}
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public static void main(String[] args) {
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test();
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Asserts.assertEQ(iFld1, 42);
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Asserts.assertEQ(iFld2, -1);
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Asserts.assertEQ(iArrFld[1], -1);
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}
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}
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