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test/compiler/c2/Test6885584.java

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rev 11557 : 8132919: use package in compiler tests
Reviewed-by: duke


  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 6885584
  28  * @summary A particular class structure causes large allocation spike for jit
  29  *
  30  * @run main/othervm -Xbatch Test6885584
  31  */
  32 

  33 
  34 
  35 public class Test6885584 {
  36    static private int i1;
  37    static private int i2;
  38    static private int i3;
  39 
  40     static int limit = Integer.MAX_VALUE - 8;
  41 
  42    public static void main(String args[]) {
  43        // Run long enough to trigger an OSR
  44        for(int j = 200000; j != 0; j--) {
  45        }
  46 
  47        // This must reference a field
  48        i1 = i2;
  49 
  50        // The resource leak is roughly proportional to this initial value
  51        for(int k = Integer.MAX_VALUE - 1; k != 0; k--) {
  52            // Make sure the body does some work
  53            if(i2 > i3)i1 = k;
  54            if (k <= limit) break;


  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 6885584
  28  * @summary A particular class structure causes large allocation spike for jit
  29  *
  30  * @run main/othervm -Xbatch compiler.c2.Test6885584
  31  */
  32 
  33 package compiler.c2;
  34 

  35 public class Test6885584 {
  36    static private int i1;
  37    static private int i2;
  38    static private int i3;
  39 
  40     static int limit = Integer.MAX_VALUE - 8;
  41 
  42    public static void main(String args[]) {
  43        // Run long enough to trigger an OSR
  44        for(int j = 200000; j != 0; j--) {
  45        }
  46 
  47        // This must reference a field
  48        i1 = i2;
  49 
  50        // The resource leak is roughly proportional to this initial value
  51        for(int k = Integer.MAX_VALUE - 1; k != 0; k--) {
  52            // Make sure the body does some work
  53            if(i2 > i3)i1 = k;
  54            if (k <= limit) break;
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