Mercurial > hg > truffle
comparison test/compiler/intrinsics/bmi/TestBlsmskL.java @ 17778:a48e16541e6b
8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions
Reviewed-by: iveresov, kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com
author | iignatyev |
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date | Sat, 22 Mar 2014 00:26:48 +0400 |
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17777:460f312abe11 | 17778:a48e16541e6b |
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1 /* | |
2 * Copyright (c) 2014, 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 /** | |
26 * @test | |
27 * @bug 8031321 | |
28 * @summary Verify that results of computations are the same w/ | |
29 * and w/o usage of BLSMSK instruction | |
30 * @library /testlibrary /testlibrary/whitebox | |
31 * @build TestBlsmskL BMITestRunner Expr | |
32 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions | |
34 * -XX:+WhiteBoxAPI TestBlsmskL | |
35 */ | |
36 | |
37 import sun.hotspot.cpuinfo.CPUInfo; | |
38 | |
39 public class TestBlsmskL { | |
40 | |
41 public static void main(String args[]) throws Throwable { | |
42 if (!CPUInfo.hasFeature("bmi1")) { | |
43 System.out.println("CPU does not support bmi1 feature. " + | |
44 "Test skipped."); | |
45 return; | |
46 } | |
47 | |
48 BMITestRunner.runTests(BlsmskLExpr.class, args, | |
49 "-XX:+UseBMI1Instructions"); | |
50 BMITestRunner.runTests(BlsmskLCommutativeExpr.class, args, | |
51 "-XX:+UseBMI1Instructions"); | |
52 } | |
53 | |
54 public static class BlsmskLExpr | |
55 extends Expr.BMIUnaryLongExpr { | |
56 | |
57 public long longExpr(long src) { | |
58 return (src - 1) ^ src; | |
59 } | |
60 | |
61 public long longExpr(Expr.MemL src) { | |
62 return (src.value - 1) ^ src.value; | |
63 } | |
64 | |
65 } | |
66 | |
67 public static class BlsmskLCommutativeExpr | |
68 extends Expr.BMIUnaryLongExpr { | |
69 | |
70 public long longExpr(long src) { | |
71 return src ^ (src - 1); | |
72 } | |
73 | |
74 public long longExpr(Expr.MemL src) { | |
75 return src.value ^ (src.value - 1); | |
76 } | |
77 | |
78 } | |
79 | |
80 } |