test/compiler/7196199/Test7196199.java

/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

/**
 * @test
 * @bug 7196199
 * @summary java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect
 *
 * @run main/othervm/timeout=400 -Xmx32m -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:CompileCommand=exclude,Test7196199.test -XX:+SafepointALot -XX:GuaranteedSafepointInterval=100 Test7196199
 */


public class Test7196199 {
  private static final int ARRLEN = 97;
  private static final int ITERS  = 5000;
  private static final int INI_ITERS  = 1000;
  private static final int SFP_ITERS  = 10000;
  private static final float SFP_ITERS_F  = 10000.f;
  private static final float VALUE = 15.f;
  public static void main(String args[]) {
    int errn = test();
    if (errn > 0) {
      System.err.println("FAILED: " + errn + " errors");
      System.exit(97);
    }
    System.out.println("PASSED");
  }

  static int test() {
    float[] a0 = new float[ARRLEN];
    float[] a1 = new float[ARRLEN];
    // Initialize
    for (int i=0; i<ARRLEN; i++) {
      a0[i] = 0.f;
      a1[i] = (float)i;
    }
    System.out.println("Warmup");
    for (int i=0; i<INI_ITERS; i++) {
      test_incrc(a0);
      test_incrv(a0, VALUE);
      test_addc(a0, a1);
      test_addv(a0, a1, VALUE);
    }
    // Test and verify results
    System.out.println("Verification");
    int errn = 0;
    for (int i=0; i<ARRLEN; i++)
      a0[i] = 0.f;

    System.out.println("  test_incrc");
    for (int j=0; j<ITERS; j++) {
      test_incrc(a0);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_incrc: ", i, a0[i], VALUE*SFP_ITERS_F);
        a0[i] = 0.f; // Reset
      }
    }

    System.out.println("  test_incrv");
    for (int j=0; j<ITERS; j++) {
      test_incrv(a0, VALUE);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_incrv: ", i, a0[i], VALUE*SFP_ITERS_F);
        a0[i] = 0.f; // Reset
      }
    }

    System.out.println("  test_addc");
    for (int j=0; j<ITERS; j++) {
      test_addc(a0, a1);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_addc: ", i, a0[i], ((float)i + VALUE)*SFP_ITERS_F);
        a0[i] = 0.f; // Reset
      }
    }

    System.out.println("  test_addv");
    for (int j=0; j<ITERS; j++) {
      test_addv(a0, a1, VALUE);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_addv: ", i, a0[i], ((float)i + VALUE)*SFP_ITERS_F);
        a0[i] = 0.f; // Reset
      }
    }

    if (errn > 0)
      return errn;

    System.out.println("Time");
    long start, end;

    start = System.currentTimeMillis();
    for (int i=0; i<INI_ITERS; i++) {
      test_incrc(a0);
    }
    end = System.currentTimeMillis();
    System.out.println("test_incrc: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<INI_ITERS; i++) {
      test_incrv(a0, VALUE);
    }
    end = System.currentTimeMillis();
    System.out.println("test_incrv: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<INI_ITERS; i++) {
      test_addc(a0, a1);
    }
    end = System.currentTimeMillis();
    System.out.println("test_addc: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<INI_ITERS; i++) {
      test_addv(a0, a1, VALUE);
    }
    end = System.currentTimeMillis();
    System.out.println("test_addv: " + (end - start));

    return errn;
  }

  static void test_incrc(float[] a0) {
    // Non-counted loop with safepoint.
    for (long l = 0; l < SFP_ITERS; l++) {
      // Counted and vectorized loop.
      for (int i = 0; i < a0.length; i+=1) {
        a0[i] += VALUE;
      }
    }
  }
  static void test_incrv(float[] a0, float b) {
    // Non-counted loop with safepoint.
    for (long l = 0; l < SFP_ITERS; l++) {
      // Counted and vectorized loop.
      for (int i = 0; i < a0.length; i+=1) {
        a0[i] += b;
      }
    }
  }
  static void test_addc(float[] a0, float[] a1) {
    // Non-counted loop with safepoint.
    for (long l = 0; l < SFP_ITERS; l++) {
      // Counted and vectorized loop.
      for (int i = 0; i < a0.length; i+=1) {
        a0[i] += a1[i]+VALUE;
      }
    }
  }
  static void test_addv(float[] a0, float[] a1, float b) {
    // Non-counted loop with safepoint.
    for (long l = 0; l < SFP_ITERS; l++) {
      // Counted and vectorized loop.
      for (int i = 0; i < a0.length; i+=1) {
        a0[i] += a1[i]+b;
      }
    }
  }

  static int verify(String text, int i, float elem, float val) {
    if (elem != val) {
      System.err.println(text + "[" + i + "] = " + elem + " != " + val);
      return 1;
    }
    return 0;
  }
}