39b22d134f
The address_offset code in EA was improved to detect raw stores(init captured ones) after loopopt. Reviewed-by: kvn, thartmann
81 lines
2.4 KiB
Java
81 lines
2.4 KiB
Java
/*
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* Copyright (c) 2020, 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 8242895
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* @summary full loop unroll before EA creates phis between allocs projs and init
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* @run main/othervm -Xbatch -XX:CompileCommand=dontinline,*DataA.m1 compiler.escapeAnalysis.TestIdealAllocShape
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*/
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package compiler.escapeAnalysis;
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public class TestIdealAllocShape {
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static volatile DataA f1;
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static class DataA {
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DataA f1;
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DataA(DataA p1) {
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this.f1 = p1;
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}
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public void m1() {}
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}
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public static DataA test1() {
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DataA l1 = new DataA(null);
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for (int i=0; i<2; i++) {
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try {
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return new DataA(l1); // l1 is a GlobalEscape. // control break.
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} catch (Exception e) {
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}
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}
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return null;
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}
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public static DataA test2() {
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DataA l1 = new DataA(null);
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for (int i=0; i<2; i++) {
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try {
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f1 = new DataA(l1); // l1 is a GlobalEscape.
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break; // control break.
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} catch (Exception e) {
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}
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}
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synchronized(l1) { // elided sync
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l1.m1();
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}
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return null;
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}
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public static void main(String argv[]) {
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for (int i=0; i<20000; i++) {
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TestIdealAllocShape.test1();
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}
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for (int i=0; i<20000; i++) {
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TestIdealAllocShape.test2();
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}
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}
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}
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