5261 libm should stop using synonyms.h

          --- old/usr/src/lib/libm/common/m9x/llround.c
          +++ new/usr/src/lib/libm/common/m9x/llround.c

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END

  20   20   */
  21   21  
  22   22  /*
  23   23   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24   24   */
  25   25  /*
  26   26   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27   27   * Use is subject to license terms.
  28   28   */
  29   29  
  30      -#pragma weak llround = __llround
       30 +#pragma weak __llround = llround
  31   31  #if defined(__sparcv9) || defined(__amd64)
  32      -#pragma weak lround = __llround
  33      -#pragma weak __lround = __llround
       32 +#pragma weak lround = llround
       33 +#pragma weak __lround = llround
  34   34  #endif
  35   35  
  36   36  /*
  37   37   * llround(x) rounds its argument to the nearest integer, rounding
  38   38   * ties away from zero, and converts the result to a 64 bit signed
  39   39   * integer.
  40   40   *
  41   41   * If x is NaN, infinite, or so large that the nearest integer
  42   42   * would exceed 64 bits, the invalid operation exception is raised.
  43   43   */

  44   44  
  45   45  #include "libm.h"
  46   46  
  47   47  long long
  48   48  llround(double x) {
  49   49          union {
  50   50                  unsigned i[2];
  51   51                  double d;
  52   52          } xx;
  53   53          unsigned hx, sx, i;
  54   54  
  55   55          xx.d = x;
  56   56          hx = xx.i[HIWORD] & ~0x80000000;
  57   57          sx = xx.i[HIWORD] & 0x80000000;
  58   58  
  59   59          if (hx < 0x43300000) { /* |x| < 2^52 */
  60   60                  /* handle |x| < 1 */
  61   61                  if (hx < 0x3ff00000) {
  62   62                          if (hx >= 0x3fe00000)
  63   63                                  return (sx ? -1LL : 1LL);
  64   64                          return (0LL);
  65   65                  }
  66   66  
  67   67                  /* round x at the integer bit */
  68   68                  if (hx < 0x41300000) {
  69   69                          i = 1 << (0x412 - (hx >> 20));
  70   70                          xx.i[HIWORD] = (xx.i[HIWORD] + i) & ~(i | (i - 1));
  71   71                          xx.i[LOWORD] = 0;
  72   72                  } else {
  73   73                          i = 1 << (0x432 - (hx >> 20));
  74   74                          xx.i[LOWORD] += i;
  75   75                          if (xx.i[LOWORD] < i)
  76   76                                  xx.i[HIWORD]++;
  77   77                          xx.i[LOWORD] &= ~(i | (i - 1));
  78   78                  }
  79   79          }
  80   80  
  81   81          /* now x is nan, inf, or integral */
  82   82          return ((long long) xx.d);
  83   83  }

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