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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /sysdeps/m68k/fpu/e_pow.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'sysdeps/m68k/fpu/e_pow.c')
-rw-r--r--sysdeps/m68k/fpu/e_pow.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/sysdeps/m68k/fpu/e_pow.c b/sysdeps/m68k/fpu/e_pow.c
deleted file mode 100644
index 0b6cee6f15..0000000000
--- a/sysdeps/m68k/fpu/e_pow.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/* Copyright (C) 1997, 1999 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <math.h>
-#include "math_private.h"
-#include "mathimpl.h"
-
-#ifndef SUFF
-#define SUFF
-#endif
-#ifndef float_type
-#define float_type double
-#endif
-
-#define CONCATX(a,b) __CONCAT(a,b)
-#define s(name) CONCATX(name,SUFF)
-#define m81(func) __m81_u(s(func))
-
-float_type
-s(__ieee754_pow) (float_type x, float_type y)
-{
-  float_type z;
-  float_type ax;
-  unsigned long x_cond, y_cond;
-
-  y_cond = __m81_test (y);
-  if (y_cond & __M81_COND_ZERO)
-    return 1.0;
-  if (y_cond & __M81_COND_NAN)
-    return x == 1.0 ? x : x + y;
-
-  x_cond = __m81_test (x);
-  if (x_cond & __M81_COND_NAN)
-    return x + y;
-
-  if (y_cond & __M81_COND_INF)
-    {
-      ax = s(fabs) (x);
-      if (ax == 1.0)
-	return ax;
-      if (ax > 1.0)
-	return y_cond & __M81_COND_NEG ? 0 : y;
-      else
-	return y_cond & __M81_COND_NEG ? -y : 0;
-    }
-
-  if (s(fabs) (y) == 1.0)
-    return y_cond & __M81_COND_NEG ? 1 / x : x;
-
-  if (y == 2)
-    return x * x;
-  if (y == 0.5 && !(x_cond & __M81_COND_NEG))
-    return m81(__ieee754_sqrt) (x);
-
-  if (x == 10.0)
-    {
-      __asm ("ftentox%.x %1, %0" : "=f" (z) : "f" (y));
-      return z;
-    }
-  if (x == 2.0)
-    {
-      __asm ("ftwotox%.x %1, %0" : "=f" (z) : "f" (y));
-      return z;
-    }
-
-  ax = s(fabs) (x);
-  if (x_cond & (__M81_COND_INF | __M81_COND_ZERO) || ax == 1.0)
-    {
-      z = ax;
-      if (y_cond & __M81_COND_NEG)
-	z = 1 / z;
-      if (x_cond & __M81_COND_NEG)
-	{
-	  if (y != m81(__rint) (y))
-	    {
-	      if (x == -1)
-		z = (z - z) / (z - z);
-	    }
-	  else
-	    goto maybe_negate;
-	}
-      return z;
-    }
-
-  if (x_cond & __M81_COND_NEG)
-    {
-      if (y == m81(__rint) (y))
-	{
-	  z = m81(__ieee754_exp) (y * m81(__ieee754_log) (-x));
-	maybe_negate:
-	  /* We always use the long double format, since y is already in
-	     this format and rounding won't change the result.  */
-	  {
-	    int32_t exponent;
-	    u_int32_t i0, i1;
-	    GET_LDOUBLE_WORDS (exponent, i0, i1, y);
-	    exponent = (exponent & 0x7fff) - 0x3fff;
-	    if (exponent <= 31
-		? i0 & (1 << (31 - exponent))
-		: (exponent <= 63
-		   && i1 & (1 << (63 - exponent))))
-	      z = -z;
-	  }
-	}
-      else
-	z = (y - y) / (y - y);
-    }
-  else
-    z = m81(__ieee754_exp) (y * m81(__ieee754_log) (x));
-  return z;
-}