Mercurial > hg > graal-compiler
diff test/compiler/7110586/Test7110586.java @ 4112:e8fdaf4a66cb
7110586: C2 generates incorrect results
Summary: Exact limit of empty loop calculated incorrectly.
Reviewed-by: iveresov, never
author | kvn |
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date | Thu, 10 Nov 2011 20:17:05 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/7110586/Test7110586.java Thu Nov 10 20:17:05 2011 -0800 @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +/** + * @test + * @bug 7110586 + * @summary C2 generates icorrect results + * + * @run main/othervm -Xbatch Test7110586 + */ + +public class Test7110586 { + static int test1() { + int i = 0; + for ( ; i < 11; i+=1) {} + return i; + } + static int test2() { + int i = 0; + for ( ; i < 11; i+=2) {} + return i; + } + static int test3() { + int i = 0; + for ( ; i < 11; i+=3) {} + return i; + } + static int test11() { + int i = 0; + for ( ; i < 11; i+=11) {} + return i; + } + + static int testm1() { + int i = 0; + for ( ; i > -11; i-=1) {} + return i; + } + static int testm2() { + int i = 0; + for ( ; i > -11; i-=2) {} + return i; + } + static int testm3() { + int i = 0; + for ( ; i > -11; i-=3) {} + return i; + } + static int testm11() { + int i = 0; + for ( ; i > -11; i-=11) {} + return i; + } + + public static void main(String args[]) { + int x1 = 0; + int x2 = 0; + int x3 = 0; + int x11 = 0; + int m1 = 0; + int m2 = 0; + int m3 = 0; + int m11 = 0; + for (int i=0; i<10000; i++) { + x1 = test1(); + x2 = test2(); + x3 = test3(); + x11 = test11(); + m1 = testm1(); + m2 = testm2(); + m3 = testm3(); + m11 = testm11(); + } + boolean failed = false; + if (x1 != 11) { + System.out.println("ERROR (incr = +1): " + x1 + " != 11"); + failed = true; + } + if (x2 != 12) { + System.out.println("ERROR (incr = +2): " + x2 + " != 12"); + failed = true; + } + if (x3 != 12) { + System.out.println("ERROR (incr = +3): " + x3 + " != 12"); + failed = true; + } + if (x11 != 11) { + System.out.println("ERROR (incr = +11): " + x11 + " != 11"); + failed = true; + } + if (m1 != -11) { + System.out.println("ERROR (incr = -1): " + m1 + " != -11"); + failed = true; + } + if (m2 != -12) { + System.out.println("ERROR (incr = -2): " + m2 + " != -12"); + failed = true; + } + if (m3 != -12) { + System.out.println("ERROR (incr = -3): " + m3 + " != -12"); + failed = true; + } + if (m11 != -11) { + System.out.println("ERROR (incr = -11): " + m11 + " != -11"); + failed = true; + } + if (failed) { + System.exit(97); + } + } +}