2.5-18.1

1 files changed, 72 insertions, 0 deletions

diff --git a/sysdeps/ieee754/ldbl-128ibm/s_sincosl.c b/sysdeps/ieee754/ldbl-128ibm/s_sincosl.c
new file mode 100644
index 0000000000..1d3d7a4d0d
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm/s_sincosl.c
@@ -0,0 +1,72 @@
+/* Compute sine and cosine of argument.
+   Copyright (C) 1997,1999,2004,2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and
+		  Jakub Jelinek <jj@ultra.linux.cz>.
+
+   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 <math_ldbl_opt.h>
+
+void
+__sincosl (long double x, long double *sinx, long double *cosx)
+{
+  int64_t ix;
+
+  /* High word of x. */
+  GET_LDOUBLE_MSW64 (ix, x);
+
+  /* |x| ~< pi/4 */
+  ix &= 0x7fffffffffffffffLL;
+  if (ix <= 0x3fe921fb54442d10LL)
+    __kernel_sincosl (x, 0.0L, sinx, cosx, 0);
+  else if (ix >= 0x7ff0000000000000LL)
+    {
+      /* sin(Inf or NaN) is NaN */
+      *sinx = *cosx = x - x;
+    }
+  else
+    {
+      /* Argument reduction needed.  */
+      long double y[2];
+      int n;
+
+      n = __ieee754_rem_pio2l (x, y);
+      switch (n & 3)
+	{
+	case 0:
+	  __kernel_sincosl (y[0], y[1], sinx, cosx, 1);
+	  break;
+	case 1:
+	  __kernel_sincosl (y[0], y[1], cosx, sinx, 1);
+	  *cosx = -*cosx;
+	  break;
+	case 2:
+	  __kernel_sincosl (y[0], y[1], sinx, cosx, 1);
+	  *sinx = -*sinx;
+	  *cosx = -*cosx;
+	  break;
+	default:
+	  __kernel_sincosl (y[0], y[1], cosx, sinx, 1);
+	  *sinx = -*sinx;
+	  break;
+	}
+    }
+}
+long_double_symbol (libm, __sincosl, sincosl);