1 /*
   2  * Copyright (c) 2018, Red Hat, Inc. 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 8202950
  27  * @summary C2: assert(found_sfpt) failed: no node in loop that's not input to safepoint
  28  *
  29  * @run main/othervm -Xcomp -Xbatch -XX:CompileOnly=UnexpectedPinnedNodeInOuterLoop -XX:-TieredCompilation UnexpectedPinnedNodeInOuterLoop
  30  *
  31  */
  32 
  33 public class UnexpectedPinnedNodeInOuterLoop {
  34 
  35     public static final int N = 400;
  36 
  37     public static volatile float fFld=0.488F;
  38     public static volatile int iFld=143;
  39 
  40     public static void lMeth(int i2) {
  41         int i20=95, i21=-163, i22=-11, iArr[]=new int[N], iArr2[]=new int[N];
  42         byte by1=-97;
  43 
  44         for (i20 = 15; 253 > i20; ++i20) {
  45             iFld += i21;
  46             for (i22 = 1; 7 > i22; i22++) {
  47                 iArr[i20 + 1] >>= i20;
  48             }
  49             fFld = i2;
  50             iArr2[i20] -= (int)2.302F;
  51         }
  52     }
  53 
  54     public static void main(String[] strArr) {
  55         lMeth(0);
  56     }
  57 }