hotspot/test/compiler/loopopts/TestArraysFillDeadControl.java
author roland
Wed, 03 Feb 2016 10:58:50 +0100
changeset 35759 85d3873f87b4
child 40059 c2304140ed64
permissions -rw-r--r--
8147645: get_ctrl_no_update() code is wrong Summary: Array.fill intrinsification code doesn't mark replaced control as dead Reviewed-by: kvn
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
35759
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     1
/*
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     2
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     4
 *
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     7
 * published by the Free Software Foundation.
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     8
 *
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    13
 * accompanied this code).
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    14
 *
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    18
 *
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    21
 * questions.
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    22
 *
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    23
 */
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    24
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    25
/**
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    26
 * @test
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    27
 * @bug 8147645
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    28
 * @summary Array.fill intrinsification code doesn't mark replaced control as dead
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    29
 * @run main/othervm  -XX:-TieredCompilation -XX:CompileCommand=dontinline,TestArraysFillDeadControl::dont_inline TestArraysFillDeadControl
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    30
 *
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    31
 */
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    32
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    33
import java.util.Arrays;
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    34
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    35
public class TestArraysFillDeadControl {
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    36
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    37
    static void dont_inline() {
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    38
    }
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    39
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    40
    static int i = 1;
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    41
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    42
    public static void main(String[] args) {
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    43
        for (int j = 0; j < 200000; j++) {
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    44
            int[] a = new int[2];
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    45
            int b = i;
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    46
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    47
            Arrays.fill(a, 1);
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    48
            Arrays.fill(a, 1+b);
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    49
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    50
            dont_inline();
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    51
        }
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    52
    }
85d3873f87b4 8147645: get_ctrl_no_update() code is wrong
roland
parents:
diff changeset
    53
}