test/compiler/8005956/PolynomialRoot.java

rev 7259 : 8044186: Introduce a reproducible random generator
Reviewed-by: iignatyev
Contributed-by: sergei.kovalev@oracle.com

*** 1,6 ****
- //package com.polytechnik.utils;
  /*
   * (C) Vladislav Malyshkin 2010
   * This file is under GPL version 3.
   *
   */
--- 1,5 ----
*** 12,25 ****
  
  /**
  * @test
  * @bug 8005956
  * @summary C2: assert(!def_outside->member(r)) failed: Use of external LRG overlaps the same LRG defined in this block
! *
  * @run main/timeout=300 PolynomialRoot
  */
  
  public class PolynomialRoot  {
  
  
  public static int findPolynomialRoots(final int n,
                final double [] p,
--- 11,28 ----
  
  /**
  * @test
  * @bug 8005956
  * @summary C2: assert(!def_outside->member(r)) failed: Use of external LRG overlaps the same LRG defined in this block
! * @library /testlibrary
  * @run main/timeout=300 PolynomialRoot
  */
  
+ import com.oracle.java.testlibrary.Utils;
+ import java.util.Arrays;
+ import java.util.Random;
+ 
  public class PolynomialRoot  {
  
  
  public static int findPolynomialRoots(final int n,
                final double [] p,
*** 55,65 ****
  
  private static final boolean PRINT_DEBUG=false;
  
  public static int root4(final double [] p,final double [] re_root,final double [] im_root)
  {
!   if(PRINT_DEBUG) System.err.println("=====================root4:p="+java.util.Arrays.toString(p));
    final double vs=p[4];
    if(PRINT_DEBUG) System.err.println("p[4]="+p[4]);
    if(!(Math.abs(vs)>EPS))
    {
        re_root[0]=re_root[1]=re_root[2]=re_root[3]=
--- 58,68 ----
  
  private static final boolean PRINT_DEBUG=false;
  
  public static int root4(final double [] p,final double [] re_root,final double [] im_root)
  {
!   if (PRINT_DEBUG) { System.err.println("=====================root4:p=" + Arrays.toString(p)); }
    final double vs=p[4];
    if(PRINT_DEBUG) System.err.println("p[4]="+p[4]);
    if(!(Math.abs(vs)>EPS))
    {
        re_root[0]=re_root[1]=re_root[2]=re_root[3]=
*** 365,375 ****
    return 4;
  }
  
  
  
!     static void setRandomP(final double [] p,final int n,java.util.Random r)
      {
    if(r.nextDouble()<0.1)
    {
        // integer coefficiens
        for(int j=0;j<p.length;j++)
--- 368,378 ----
    return 4;
  }
  
  
  
!     static void setRandomP(final double [] p, final int n, Random r)
      {
    if(r.nextDouble()<0.1)
    {
        // integer coefficiens
        for(int j=0;j<p.length;j++)
*** 463,473 ****
    return buf.toString();
      }
  
      static void testRoots(final int n,
          final int n_tests,
!         final java.util.Random rn,
          final double eps)
      {
    final double [] p=new double [n+1];
    final double [] rex=new double [n],imx=new double [n];
    for(int i=0;i<n_tests;i++)
--- 466,476 ----
    return buf.toString();
      }
  
      static void testRoots(final int n,
          final int n_tests,
!         final Random rn,
          final double eps)
      {
    final double [] p=new double [n+1];
    final double [] rex=new double [n],imx=new double [n];
    for(int i=0;i<n_tests;i++)
*** 761,771 ****
           System.getProperty("os.arch").equals("amd64") ||
           System.getProperty("os.arch").equals("x86_64")){
          final long t0=System.currentTimeMillis();
          final double eps=1e-6;
          //checkRoots();
!         final java.util.Random r=new java.util.Random(-1381923);
          printSpecialValues();
  
          final int n_tests=100000;
          //testRoots(2,n_tests,r,eps);
          //testRoots(3,n_tests,r,eps);
--- 764,774 ----
           System.getProperty("os.arch").equals("amd64") ||
           System.getProperty("os.arch").equals("x86_64")){
          final long t0=System.currentTimeMillis();
          final double eps=1e-6;
          //checkRoots();
!         final Random r = Utils.getRandomInstance();
          printSpecialValues();
  
          final int n_tests=100000;
          //testRoots(2,n_tests,r,eps);
          //testRoots(3,n_tests,r,eps);