1 /*
   2  * Copyright (c) 2017, 2018, 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  *
  28  * @summary converted from VM Testbase vm/compiler/optimizations/partialpeel/WhileWhile.
  29  * VM Testbase keywords: [jit, quick]
  30  * VM Testbase readme:
  31  * DESCRIPTION
  32  *     This test triggers Parial Peel C2 optimization for inner while loop:
  33  *     "Partially peel (aka loop rotation) the top portion of a loop
  34  *     (called the peel section below) by cloning it and placing one copy
  35  *     just before the new loop head and the other copy at the bottom of
  36  *     the new loop".
  37  *     This optimization is applicable for non-counted loops, that contains
  38  *     test (condition) with inductive vars and jumps outside from loop.
  39  *
  40  * @library /vmTestbase
  41  *          /test/lib
  42  * @run driver jdk.test.lib.FileInstaller . .
  43  * @run main/othervm vm.compiler.optimizations.partialpeel.WhileWhile
  44  */
  45