--- /dev/null	Sat May 10 12:09:12 2014
+++ new/usr/src/lib/libm/common/R/cosf.c	Sat May 10 12:09:12 2014
@@ -0,0 +1,148 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma weak cosf = __cosf
+
+/*
+ * See sincosf.c
+ */
+
+#include "libm.h"
+
+extern const int _TBL_ipio2_inf[];
+extern int __rem_pio2m(double *, double *, int, int, int, const int *);
+#if defined(__i386) && !defined(__amd64)
+extern int __swapRP(int);
+#endif
+
+static const double C[] = {
+	1.85735322054308378716204874632872525989806770558e-0003,
+	-1.95035094218403635082921458859320791358115801259e-0004,
+	5.38400550766074785970952495168558701485841707252e+0002,
+	-3.31975110777873728964197739157371509422022905947e+0001,
+	1.09349482127188401868272000389539985058873853699e-0003,
+	-5.03324285989964979398034700054920226866107675091e-0004,
+	2.43792880266971107750418061559602239831538067410e-0005,
+	9.14499072605666582228127405245558035523741471271e+0002,
+	-3.63151270591815439197122504991683846785293207730e+0001,
+	0.636619772367581343075535,	/* 2^ -1  * 1.45F306DC9C883 */
+	0.5,
+	1.570796326734125614166,	/* 2^  0  * 1.921FB54400000 */
+	6.077100506506192601475e-11,	/* 2^-34  * 1.0B4611A626331 */
+};
+
+#define	S0	C[0]
+#define	S1	C[1]
+#define	S2	C[2]
+#define	S3	C[3]
+#define	C0	C[4]
+#define	C1	C[5]
+#define	C2	C[6]
+#define	C3	C[7]
+#define	C4	C[8]
+#define	invpio2	C[9]
+#define	half	C[10]
+#define	pio2_1  C[11]
+#define	pio2_t	C[12]
+
+float
+cosf(float x)
+{
+	double	y, z, w;
+	float	f;
+	int	n, ix, hx, hy;
+	volatile int i;
+
+	hx = *((int *)&x);
+	ix = hx & 0x7fffffff;
+
+	y = (double)x;
+
+	if (ix <= 0x4016cbe4) {		/* |x| < 3*pi/4 */
+		if (ix <= 0x3f490fdb) {		/* |x| < pi/4 */
+			if (ix <= 0x39800000) {	/* |x| <= 2**-12 */
+				i = (int)y;
+#ifdef lint
+				i = i;
+#endif
+				return (1.0f);
+			}
+			z = y * y;
+			return ((float)(((C0 + z * C1) + (z * z) * C2) *
+			    (C3 + z * (C4 + z))));
+		} else if (hx > 0) {
+			y = (y - pio2_1) - pio2_t;
+			z = y * y;
+			return ((float)-((y * (S0 + z * S1)) *
+			    (S2 + z * (S3 + z))));
+		} else {
+			y = (y + pio2_1) + pio2_t;
+			z = y * y;
+			return ((float)((y * (S0 + z * S1)) *
+			    (S2 + z * (S3 + z))));
+		}
+	} else if (ix <= 0x49c90fdb) {	/* |x| < 2^19*pi */
+#if defined(__i386) && !defined(__amd64)
+		int	rp;
+
+		rp = __swapRP(fp_extended);
+#endif
+		w = y * invpio2;
+		if (hx < 0)
+			n = (int)(w - half);
+		else
+			n = (int)(w + half);
+		y = (y - n * pio2_1) - n * pio2_t;
+		n++;
+#if defined(__i386) && !defined(__amd64)
+		if (rp != fp_extended)
+			(void) __swapRP(rp);
+#endif
+	} else {
+		if (ix >= 0x7f800000)
+			return (x / x); /* cos(Inf or NaN) is NaN */
+		hy = ((int *)&y)[HIWORD];
+		n = ((hy >> 20) & 0x7ff) - 1046;
+		((int *)&w)[HIWORD] = (hy & 0xfffff) | 0x41600000;
+		((int *)&w)[LOWORD] = ((int *)&y)[LOWORD];
+		n = __rem_pio2m(&w, &y, n, 1, 0, _TBL_ipio2_inf) + 1;
+	}
+
+	if (n & 1) {
+		/* compute cos y */
+		z = y * y;
+		f = (float)(((C0 + z * C1) + (z * z) * C2) *
+		    (C3 + z * (C4 + z)));
+	} else {
+		/* compute sin y */
+		z = y * y;
+		f = (float)((y * (S0 + z * S1)) * (S2 + z * (S3 + z)));
+	}
+
+	return ((n & 2)? -f : f);
+}
