Mercurial > hg > graal-jvmci-8
comparison test/compiler/7029152/Test.java @ 2412:f9424955eb18
7029152: Ideal nodes for String intrinsics miss memory edge optimization
Summary: In Ideal() method of String intrinsics nodes look for TypeAryPtr::CHARS memory slice if memory is MergeMem. Do not unroll a loop with String intrinsics code.
Reviewed-by: never
author | kvn |
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date | Wed, 30 Mar 2011 12:08:49 -0700 |
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2411:63997f575155 | 2412:f9424955eb18 |
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1 /* | |
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 | |
24 /** | |
25 * @test | |
26 * @bug 7029152 | |
27 * @summary Ideal nodes for String intrinsics miss memory edge optimization | |
28 * | |
29 * @run main/othervm -Xbatch Test | |
30 */ | |
31 | |
32 public class Test { | |
33 | |
34 static final String str = "11111xx11111xx1x"; | |
35 static int idx = 0; | |
36 | |
37 static int IndexOfTest(String str) { | |
38 return str.indexOf("11111xx1x"); | |
39 } | |
40 | |
41 public static void main(String args[]) { | |
42 final int ITERS=2000000; | |
43 | |
44 for (int i=0; i<ITERS; i++) { | |
45 idx = IndexOfTest(str); | |
46 } | |
47 System.out.println("IndexOf = " + idx); | |
48 } | |
49 } |