5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Approved by: Gordon Ross <gwr@nexenta.com>

          --- old/usr/src/lib/libm/common/m9x/fmin.c
          +++ new/usr/src/lib/libm/common/m9x/fmin.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      -#if defined(ELFOBJ)
  31   30  #pragma weak fmin = __fmin
  32      -#endif
  33   31  
  34   32  /*
  35   33   * fmin(x,y) returns the smaller of x and y.  If just one of the
  36   34   * arguments is NaN, fmin returns the other argument.  If both
  37   35   * arguments are NaN, fmin returns NaN.
  38   36   *
  39   37   * See fmaxf.c for a discussion of implementation trade-offs.
  40   38   */
  41   39  
  42   40  #include "libm.h"       /* for islessequal macro */

  43   41  
  44   42  #include "fenv_inlines.h"
  45   43  #include <stdio.h>
  46   44  #include <sys/isa_defs.h>
  47   45  
  48   46  double
  49   47  __fmin(double x, double y) {
  50   48          union {
  51   49                  unsigned i[2];
  52   50                  double d;
  53   51          } xx, yy;
  54   52          unsigned s;
  55   53          
  56   54          /* if y is nan, replace it by x */
  57   55          if (y != y)
  58   56                  y = x;
  59   57  
  60   58          /* if x is nan, replace it by y */
  61   59          if (x != x)
  62   60                  x = y;
  63   61  
  64   62          /* At this point, x and y are either both numeric, or both NaN */
  65   63          if (!isnan(x) && !islessequal(x, y))
  66   64                  x = y;
  67   65  
  68   66          /*
  69   67           * set the sign of the result if either x or y has its sign set
  70   68           */
  71   69          xx.d = x;
  72   70          yy.d = y;
  73   71  #if defined(_BIG_ENDIAN)
  74   72          s = (xx.i[0] | yy.i[0]) & 0x80000000;
  75   73          xx.i[0] |= s;
  76   74  #else
  77   75          s = (xx.i[1] | yy.i[1]) & 0x80000000;
  78   76          xx.i[1] |= s;
  79   77  #endif
  80   78  
  81   79          return (xx.d);
  82   80  }

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