111 lines
3.4 KiB
Java
111 lines
3.4 KiB
Java
/*
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* Copyright (c) 2013, 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 6443505
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* @summary Some cases for CmpLTMask missed; also wrong code.
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*
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* @run main/othervm -Xcomp
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* -XX:CompileCommand=compileonly,compiler.c2.Test6443505::compiled
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* compiler.c2.Test6443505
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*/
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package compiler.c2;
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public class Test6443505 {
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public static void main(String[] args) throws InterruptedException {
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test(Integer.MIN_VALUE, 0);
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test(0, Integer.MIN_VALUE);
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test(Integer.MIN_VALUE, -1);
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test(-1, Integer.MIN_VALUE);
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test(Integer.MIN_VALUE, 1);
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test(1, Integer.MIN_VALUE);
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test(Integer.MAX_VALUE, 0);
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test(0, Integer.MAX_VALUE);
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test(Integer.MAX_VALUE, -1);
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test(-1, Integer.MAX_VALUE);
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test(Integer.MAX_VALUE, 1);
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test(1, Integer.MAX_VALUE);
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test(Integer.MIN_VALUE, Integer.MAX_VALUE);
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test(Integer.MAX_VALUE, Integer.MIN_VALUE);
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test(1, -1);
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test(1, 0);
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test(1, 1);
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test(-1, -1);
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test(-1, 0);
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test(-1, 1);
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test(0, -1);
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test(0, 0);
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test(0, 1);
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}
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public static void test(int a, int b) throws InterruptedException {
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int C = compiled(4, a, b);
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int I = interpreted(4, a, b);
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if (C != I) {
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System.err.println("#1 C = " + C + ", I = " + I);
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System.err.println("#1 C != I, FAIL");
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System.exit(97);
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}
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C = compiled(a, b, q, 4);
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I = interpreted(a, b, q, 4);
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if (C != I) {
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System.err.println("#2 C = " + C + ", I = " + I);
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System.err.println("#2 C != I, FAIL");
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System.exit(97);
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}
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}
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static int q = 4;
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// If improperly compiled, uses carry/borrow bit, which is wrong.
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// with -XX:+PrintOptoAssembly, look for cadd_cmpLTMask
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static int compiled(int p, int x, int y) {
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return (x < y) ? q + (x - y) : (x - y);
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}
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// interpreted reference
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static int interpreted(int p, int x, int y) {
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return (x < y) ? q + (x - y) : (x - y);
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}
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// Test new code with a range of cases
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// with -XX:+PrintOptoAssembly, look for and_cmpLTMask
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static int compiled(int x, int y, int q, int p) {
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return (x < y) ? p + q : q;
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}
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// interpreted reference
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static int interpreted(int x, int y, int q, int p) {
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return (x < y) ? p + q : q;
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}
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}
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