Sync with upstream FreeBSD libm.

Change-Id: I97e9b23903f1d993d84825806065e85626007d31

31 files changed, 406 insertions, 377 deletions

diff --git a/libm/upstream-freebsd/lib/msun/ld128/k_expl.h b/libm/upstream-freebsd/lib/msun/ld128/k_expl.h
index a5668fd..e843d43 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/k_expl.h
+++ b/libm/upstream-freebsd/lib/msun/ld128/k_expl.h
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/ld128/k_expl.h 275819 2014-12-16 09:21:56Z ed $");
 
 /*
  * ld128 version of k_expl.h.  See ../ld80/s_expl.c for most comments.
@@ -322,7 +322,7 @@ __ldexp_cexpl(long double complex z, int expt)
 	scale2 = 1;
 	SET_LDBL_EXPSIGN(scale1, BIAS + expt - half_expt);
 
-	return (cpackl(cos(y) * exp_x * scale1 * scale2,
+	return (CMPLXL(cos(y) * exp_x * scale1 * scale2,
 	    sinl(y) * exp_x * scale1 * scale2));
 }
 #endif /* _COMPLEX_H */
diff --git a/libm/upstream-freebsd/lib/msun/src/catrig.c b/libm/upstream-freebsd/lib/msun/src/catrig.c
index 200977c..050a88b 100644
--- a/libm/upstream-freebsd/lib/msun/src/catrig.c
+++ b/libm/upstream-freebsd/lib/msun/src/catrig.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/catrig.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <float.h>
@@ -286,19 +286,19 @@ casinh(double complex z)
 	if (isnan(x) || isnan(y)) {
 		/* casinh(+-Inf + I*NaN) = +-Inf + I*NaN */
 		if (isinf(x))
-			return (cpack(x, y + y));
+			return (CMPLX(x, y + y));
 		/* casinh(NaN + I*+-Inf) = opt(+-)Inf + I*NaN */
 		if (isinf(y))
-			return (cpack(y, x + x));
+			return (CMPLX(y, x + x));
 		/* casinh(NaN + I*0) = NaN + I*0 */
 		if (y == 0)
-			return (cpack(x + x, y));
+			return (CMPLX(x + x, y));
 		/*
 		 * All other cases involving NaN return NaN + I*NaN.
 		 * C99 leaves it optional whether to raise invalid if one of
 		 * the arguments is not NaN, so we opt not to raise it.
 		 */
-		return (cpack(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
+		return (CMPLX(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
 	}
 
 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON) {
@@ -307,7 +307,7 @@ casinh(double complex z)
 			w = clog_for_large_values(z) + m_ln2;
 		else
 			w = clog_for_large_values(-z) + m_ln2;
-		return (cpack(copysign(creal(w), x), copysign(cimag(w), y)));
+		return (CMPLX(copysign(creal(w), x), copysign(cimag(w), y)));
 	}
 
 	/* Avoid spuriously raising inexact for z = 0. */
@@ -325,7 +325,7 @@ casinh(double complex z)
 		ry = asin(B);
 	else
 		ry = atan2(new_y, sqrt_A2my2);
-	return (cpack(copysign(rx, x), copysign(ry, y)));
+	return (CMPLX(copysign(rx, x), copysign(ry, y)));
 }
 
 /*
@@ -335,9 +335,9 @@ casinh(double complex z)
 double complex
 casin(double complex z)
 {
-	double complex w = casinh(cpack(cimag(z), creal(z)));
+	double complex w = casinh(CMPLX(cimag(z), creal(z)));
 
-	return (cpack(cimag(w), creal(w)));
+	return (CMPLX(cimag(w), creal(w)));
 }
 
 /*
@@ -370,19 +370,19 @@ cacos(double complex z)
 	if (isnan(x) || isnan(y)) {
 		/* cacos(+-Inf + I*NaN) = NaN + I*opt(-)Inf */
 		if (isinf(x))
-			return (cpack(y + y, -INFINITY));
+			return (CMPLX(y + y, -INFINITY));
 		/* cacos(NaN + I*+-Inf) = NaN + I*-+Inf */
 		if (isinf(y))
-			return (cpack(x + x, -y));
+			return (CMPLX(x + x, -y));
 		/* cacos(0 + I*NaN) = PI/2 + I*NaN with inexact */
 		if (x == 0)
-			return (cpack(pio2_hi + pio2_lo, y + y));
+			return (CMPLX(pio2_hi + pio2_lo, y + y));
 		/*
 		 * All other cases involving NaN return NaN + I*NaN.
 		 * C99 leaves it optional whether to raise invalid if one of
 		 * the arguments is not NaN, so we opt not to raise it.
 		 */
-		return (cpack(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
+		return (CMPLX(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
 	}
 
 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON) {
@@ -392,18 +392,18 @@ cacos(double complex z)
 		ry = creal(w) + m_ln2;
 		if (sy == 0)
 			ry = -ry;
-		return (cpack(rx, ry));
+		return (CMPLX(rx, ry));
 	}
 
 	/* Avoid spuriously raising inexact for z = 1. */
 	if (x == 1 && y == 0)
-		return (cpack(0, -y));
+		return (CMPLX(0, -y));
 
 	/* All remaining cases are inexact. */
 	raise_inexact();
 
 	if (ax < SQRT_6_EPSILON / 4 && ay < SQRT_6_EPSILON / 4)
-		return (cpack(pio2_hi - (x - pio2_lo), -y));
+		return (CMPLX(pio2_hi - (x - pio2_lo), -y));
 
 	do_hard_work(ay, ax, &ry, &B_is_usable, &B, &sqrt_A2mx2, &new_x);
 	if (B_is_usable) {
@@ -419,7 +419,7 @@ cacos(double complex z)
 	}
 	if (sy == 0)
 		ry = -ry;
-	return (cpack(rx, ry));
+	return (CMPLX(rx, ry));
 }
 
 /*
@@ -437,15 +437,15 @@ cacosh(double complex z)
 	ry = cimag(w);
 	/* cacosh(NaN + I*NaN) = NaN + I*NaN */
 	if (isnan(rx) && isnan(ry))
-		return (cpack(ry, rx));
+		return (CMPLX(ry, rx));
 	/* cacosh(NaN + I*+-Inf) = +Inf + I*NaN */
 	/* cacosh(+-Inf + I*NaN) = +Inf + I*NaN */
 	if (isnan(rx))
-		return (cpack(fabs(ry), rx));
+		return (CMPLX(fabs(ry), rx));
 	/* cacosh(0 + I*NaN) = NaN + I*NaN */
 	if (isnan(ry))
-		return (cpack(ry, ry));
-	return (cpack(fabs(ry), copysign(rx, cimag(z))));
+		return (CMPLX(ry, ry));
+	return (CMPLX(fabs(ry), copysign(rx, cimag(z))));
 }
 
 /*
@@ -475,16 +475,16 @@ clog_for_large_values(double complex z)
 	 * this method is still poor since it is uneccessarily slow.
 	 */
 	if (ax > DBL_MAX / 2)
-		return (cpack(log(hypot(x / m_e, y / m_e)) + 1, atan2(y, x)));
+		return (CMPLX(log(hypot(x / m_e, y / m_e)) + 1, atan2(y, x)));
 
 	/*
 	 * Avoid overflow when x or y is large.  Avoid underflow when x or
 	 * y is small.
 	 */
 	if (ax > QUARTER_SQRT_MAX || ay < SQRT_MIN)
-		return (cpack(log(hypot(x, y)), atan2(y, x)));
+		return (CMPLX(log(hypot(x, y)), atan2(y, x)));
 
-	return (cpack(log(ax * ax + ay * ay) / 2, atan2(y, x)));
+	return (CMPLX(log(ax * ax + ay * ay) / 2, atan2(y, x)));
 }
 
 /*
@@ -575,30 +575,30 @@ catanh(double complex z)
 
 	/* This helps handle many cases. */
 	if (y == 0 && ax <= 1)
-		return (cpack(atanh(x), y));
+		return (CMPLX(atanh(x), y));
 
 	/* To ensure the same accuracy as atan(), and to filter out z = 0. */
 	if (x == 0)
-		return (cpack(x, atan(y)));
+		return (CMPLX(x, atan(y)));
 
 	if (isnan(x) || isnan(y)) {
 		/* catanh(+-Inf + I*NaN) = +-0 + I*NaN */
 		if (isinf(x))
-			return (cpack(copysign(0, x), y + y));
+			return (CMPLX(copysign(0, x), y + y));
 		/* catanh(NaN + I*+-Inf) = sign(NaN)0 + I*+-PI/2 */
 		if (isinf(y))
-			return (cpack(copysign(0, x),
+			return (CMPLX(copysign(0, x),
 			    copysign(pio2_hi + pio2_lo, y)));
 		/*
 		 * All other cases involving NaN return NaN + I*NaN.
 		 * C99 leaves it optional whether to raise invalid if one of
 		 * the arguments is not NaN, so we opt not to raise it.
 		 */
-		return (cpack(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
+		return (CMPLX(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
 	}
 
 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON)
-		return (cpack(real_part_reciprocal(x, y),
+		return (CMPLX(real_part_reciprocal(x, y),
 		    copysign(pio2_hi + pio2_lo, y)));
 
 	if (ax < SQRT_3_EPSILON / 2 && ay < SQRT_3_EPSILON / 2) {
@@ -623,7 +623,7 @@ catanh(double complex z)
 	else
 		ry = atan2(2 * ay, (1 - ax) * (1 + ax) - ay * ay) / 2;
 
-	return (cpack(copysign(rx, x), copysign(ry, y)));
+	return (CMPLX(copysign(rx, x), copysign(ry, y)));
 }
 
 /*
@@ -633,7 +633,7 @@ catanh(double complex z)
 double complex
 catan(double complex z)
 {
-	double complex w = catanh(cpack(cimag(z), creal(z)));
+	double complex w = catanh(CMPLX(cimag(z), creal(z)));
 
-	return (cpack(cimag(w), creal(w)));
+	return (CMPLX(cimag(w), creal(w)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/catrigf.c b/libm/upstream-freebsd/lib/msun/src/catrigf.c
index 08ebef7..e057d31 100644
--- a/libm/upstream-freebsd/lib/msun/src/catrigf.c
+++ b/libm/upstream-freebsd/lib/msun/src/catrigf.c
@@ -39,7 +39,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/catrigf.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <float.h>
@@ -156,12 +156,12 @@ casinhf(float complex z)
 
 	if (isnan(x) || isnan(y)) {
 		if (isinf(x))
-			return (cpackf(x, y + y));
+			return (CMPLXF(x, y + y));
 		if (isinf(y))
-			return (cpackf(y, x + x));
+			return (CMPLXF(y, x + x));
 		if (y == 0)
-			return (cpackf(x + x, y));
-		return (cpackf(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
+			return (CMPLXF(x + x, y));
+		return (CMPLXF(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
 	}
 
 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON) {
@@ -169,7 +169,7 @@ casinhf(float complex z)
 			w = clog_for_large_values(z) + m_ln2;
 		else
 			w = clog_for_large_values(-z) + m_ln2;
-		return (cpackf(copysignf(crealf(w), x),
+		return (CMPLXF(copysignf(crealf(w), x),
 		    copysignf(cimagf(w), y)));
 	}
 
@@ -186,15 +186,15 @@ casinhf(float complex z)
 		ry = asinf(B);
 	else
 		ry = atan2f(new_y, sqrt_A2my2);
-	return (cpackf(copysignf(rx, x), copysignf(ry, y)));
+	return (CMPLXF(copysignf(rx, x), copysignf(ry, y)));
 }
 
 float complex
 casinf(float complex z)
 {
-	float complex w = casinhf(cpackf(cimagf(z), crealf(z)));
+	float complex w = casinhf(CMPLXF(cimagf(z), crealf(z)));
 
-	return (cpackf(cimagf(w), crealf(w)));
+	return (CMPLXF(cimagf(w), crealf(w)));
 }
 
 float complex
@@ -214,12 +214,12 @@ cacosf(float complex z)
 
 	if (isnan(x) || isnan(y)) {
 		if (isinf(x))
-			return (cpackf(y + y, -INFINITY));
+			return (CMPLXF(y + y, -INFINITY));
 		if (isinf(y))
-			return (cpackf(x + x, -y));
+			return (CMPLXF(x + x, -y));
 		if (x == 0)
-			return (cpackf(pio2_hi + pio2_lo, y + y));
-		return (cpackf(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
+			return (CMPLXF(pio2_hi + pio2_lo, y + y));
+		return (CMPLXF(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
 	}
 
 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON) {
@@ -228,16 +228,16 @@ cacosf(float complex z)
 		ry = crealf(w) + m_ln2;
 		if (sy == 0)
 			ry = -ry;
-		return (cpackf(rx, ry));
+		return (CMPLXF(rx, ry));
 	}
 
 	if (x == 1 && y == 0)
-		return (cpackf(0, -y));
+		return (CMPLXF(0, -y));
 
 	raise_inexact();
 
 	if (ax < SQRT_6_EPSILON / 4 && ay < SQRT_6_EPSILON / 4)
-		return (cpackf(pio2_hi - (x - pio2_lo), -y));
+		return (CMPLXF(pio2_hi - (x - pio2_lo), -y));
 
 	do_hard_work(ay, ax, &ry, &B_is_usable, &B, &sqrt_A2mx2, &new_x);
 	if (B_is_usable) {
@@ -253,7 +253,7 @@ cacosf(float complex z)
 	}
 	if (sy == 0)
 		ry = -ry;
-	return (cpackf(rx, ry));
+	return (CMPLXF(rx, ry));
 }
 
 float complex
@@ -266,12 +266,12 @@ cacoshf(float complex z)
 	rx = crealf(w);
 	ry = cimagf(w);
 	if (isnan(rx) && isnan(ry))
-		return (cpackf(ry, rx));
+		return (CMPLXF(ry, rx));
 	if (isnan(rx))
-		return (cpackf(fabsf(ry), rx));
+		return (CMPLXF(fabsf(ry), rx));
 	if (isnan(ry))
-		return (cpackf(ry, ry));
-	return (cpackf(fabsf(ry), copysignf(rx, cimagf(z))));
+		return (CMPLXF(ry, ry));
+	return (CMPLXF(fabsf(ry), copysignf(rx, cimagf(z))));
 }
 
 static float complex
@@ -291,13 +291,13 @@ clog_for_large_values(float complex z)
 	}
 
 	if (ax > FLT_MAX / 2)
-		return (cpackf(logf(hypotf(x / m_e, y / m_e)) + 1,
+		return (CMPLXF(logf(hypotf(x / m_e, y / m_e)) + 1,
 		    atan2f(y, x)));
 
 	if (ax > QUARTER_SQRT_MAX || ay < SQRT_MIN)
-		return (cpackf(logf(hypotf(x, y)), atan2f(y, x)));
+		return (CMPLXF(logf(hypotf(x, y)), atan2f(y, x)));
 
-	return (cpackf(logf(ax * ax + ay * ay) / 2, atan2f(y, x)));
+	return (CMPLXF(logf(ax * ax + ay * ay) / 2, atan2f(y, x)));
 }
 
 static inline float
@@ -346,22 +346,22 @@ catanhf(float complex z)
 	ay = fabsf(y);
 
 	if (y == 0 && ax <= 1)
-		return (cpackf(atanhf(x), y));
+		return (CMPLXF(atanhf(x), y));
 
 	if (x == 0)
-		return (cpackf(x, atanf(y)));
+		return (CMPLXF(x, atanf(y)));
 
 	if (isnan(x) || isnan(y)) {
 		if (isinf(x))
-			return (cpackf(copysignf(0, x), y + y));
+			return (CMPLXF(copysignf(0, x), y + y));
 		if (isinf(y))
-			return (cpackf(copysignf(0, x),
+			return (CMPLXF(copysignf(0, x),
 			    copysignf(pio2_hi + pio2_lo, y)));
-		return (cpackf(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
+		return (CMPLXF(x + 0.0L + (y + 0), x + 0.0L + (y + 0)));
 	}
 
 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON)
-		return (cpackf(real_part_reciprocal(x, y),
+		return (CMPLXF(real_part_reciprocal(x, y),
 		    copysignf(pio2_hi + pio2_lo, y)));
 
 	if (ax < SQRT_3_EPSILON / 2 && ay < SQRT_3_EPSILON / 2) {
@@ -381,13 +381,13 @@ catanhf(float complex z)
 	else
 		ry = atan2f(2 * ay, (1 - ax) * (1 + ax) - ay * ay) / 2;
 
-	return (cpackf(copysignf(rx, x), copysignf(ry, y)));
+	return (CMPLXF(copysignf(rx, x), copysignf(ry, y)));
 }
 
 float complex
 catanf(float complex z)
 {
-	float complex w = catanhf(cpackf(cimagf(z), crealf(z)));
+	float complex w = catanhf(CMPLXF(cimagf(z), crealf(z)));
 
-	return (cpackf(cimagf(w), crealf(w)));
+	return (CMPLXF(cimagf(w), crealf(w)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j0.c b/libm/upstream-freebsd/lib/msun/src/e_j0.c
index 8320f25..36e72c2 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j0.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j0.c
@@ -12,7 +12,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/e_j0.c 283032 2015-05-17 16:27:06Z kargl $");
 
 /* __ieee754_j0(x), __ieee754_y0(x)
  * Bessel function of the first and second kinds of order zero.
@@ -62,7 +62,9 @@ __FBSDID("$FreeBSD$");
 #include "math.h"
 #include "math_private.h"
 
-static double pzero(double), qzero(double);
+static __inline double pzero(double), qzero(double);
+
+static const volatile double vone = 1, vzero = 0;
 
 static const double
 huge 	= 1e300,
@@ -115,7 +117,7 @@ __ieee754_j0(double x)
 	if(ix<0x3f200000) {	/* |x| < 2**-13 */
 	    if(huge+x>one) {	/* raise inexact if x != 0 */
 	        if(ix<0x3e400000) return one;	/* |x|<2**-27 */
-	        else 	      return one - 0.25*x*x;
+	        else 	      return one - x*x/4;
 	    }
 	}
 	z = x*x;
@@ -150,10 +152,16 @@ __ieee754_y0(double x)
 
 	EXTRACT_WORDS(hx,lx,x);
         ix = 0x7fffffff&hx;
-    /* Y0(NaN) is NaN, y0(-inf) is Nan, y0(inf) is 0  */
-	if(ix>=0x7ff00000) return  one/(x+x*x); 
-        if((ix|lx)==0) return -one/zero;
-        if(hx<0) return zero/zero;
+	/*
+	 * y0(NaN) = NaN.
+	 * y0(Inf) = 0.
+	 * y0(-Inf) = NaN and raise invalid exception.
+	 */
+	if(ix>=0x7ff00000) return vone/(x+x*x); 
+	/* y0(+-0) = -inf and raise divide-by-zero exception. */
+	if((ix|lx)==0) return -one/vzero;
+	/* y0(x<0) = NaN and raise invalid exception. */
+	if(hx<0) return vzero/vzero;
         if(ix >= 0x40000000) {  /* |x| >= 2.0 */
         /* y0(x) = sqrt(2/(pi*x))*(p0(x)*sin(x0)+q0(x)*cos(x0))
          * where x0 = x-pi/4
@@ -268,7 +276,8 @@ static const double pS2[5] = {
   1.46576176948256193810e+01, /* 0x402D50B3, 0x44391809 */
 };
 
-	static double pzero(double x)
+static __inline double
+pzero(double x)
 {
 	const double *p,*q;
 	double z,r,s;
@@ -278,7 +287,7 @@ static const double pS2[5] = {
 	if(ix>=0x40200000)     {p = pR8; q= pS8;}
 	else if(ix>=0x40122E8B){p = pR5; q= pS5;}
 	else if(ix>=0x4006DB6D){p = pR3; q= pS3;}
-	else if(ix>=0x40000000){p = pR2; q= pS2;}
+	else                   {p = pR2; q= pS2;}	/* ix>=0x40000000 */
 	z = one/(x*x);
 	r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
 	s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*q[4]))));
@@ -363,7 +372,8 @@ static const double qS2[6] = {
  -5.31095493882666946917e+00, /* 0xC0153E6A, 0xF8B32931 */
 };
 
-	static double qzero(double x)
+static __inline double
+qzero(double x)
 {
 	const double *p,*q;
 	double s,r,z;
@@ -373,7 +383,7 @@ static const double qS2[6] = {
 	if(ix>=0x40200000)     {p = qR8; q= qS8;}
 	else if(ix>=0x40122E8B){p = qR5; q= qS5;}
 	else if(ix>=0x4006DB6D){p = qR3; q= qS3;}
-	else if(ix>=0x40000000){p = qR2; q= qS2;}
+	else                   {p = qR2; q= qS2;}	/* ix>=0x40000000 */
 	z = one/(x*x);
 	r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
 	s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*(q[4]+z*q[5])))));
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j0f.c b/libm/upstream-freebsd/lib/msun/src/e_j0f.c
index c45faf3..e53b218 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j0f.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j0f.c
@@ -14,12 +14,18 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/e_j0f.c 283032 2015-05-17 16:27:06Z kargl $");
+
+/*
+ * See e_j0.c for complete comments.
+ */
 
 #include "math.h"
 #include "math_private.h"
 
-static float pzerof(float), qzerof(float);
+static __inline float pzerof(float), qzerof(float);
+
+static const volatile float vone = 1,  vzero = 0;
 
 static const float
 huge 	= 1e30,
@@ -62,17 +68,17 @@ __ieee754_j0f(float x)
 	 * j0(x) = 1/sqrt(pi) * (P(0,x)*cc - Q(0,x)*ss) / sqrt(x)
 	 * y0(x) = 1/sqrt(pi) * (P(0,x)*ss + Q(0,x)*cc) / sqrt(x)
 	 */
-		if(ix>0x80000000) z = (invsqrtpi*cc)/sqrtf(x);
+		if(ix>0x58000000) z = (invsqrtpi*cc)/sqrtf(x); /* |x|>2**49 */
 		else {
 		    u = pzerof(x); v = qzerof(x);
 		    z = invsqrtpi*(u*cc-v*ss)/sqrtf(x);
 		}
 		return z;
 	}
-	if(ix<0x39000000) {	/* |x| < 2**-13 */
+	if(ix<0x3b000000) {	/* |x| < 2**-9 */
 	    if(huge+x>one) {	/* raise inexact if x != 0 */
-	        if(ix<0x32000000) return one;	/* |x|<2**-27 */
-	        else 	      return one - (float)0.25*x*x;
+	        if(ix<0x39800000) return one;	/* |x|<2**-12 */
+	        else 	      return one - x*x/4;
 	    }
 	}
 	z = x*x;
@@ -107,10 +113,9 @@ __ieee754_y0f(float x)
 
 	GET_FLOAT_WORD(hx,x);
         ix = 0x7fffffff&hx;
-    /* Y0(NaN) is NaN, y0(-inf) is Nan, y0(inf) is 0  */
-	if(ix>=0x7f800000) return  one/(x+x*x);
-        if(ix==0) return -one/zero;
-        if(hx<0) return zero/zero;
+	if(ix>=0x7f800000) return  vone/(x+x*x);
+	if(ix==0) return -one/vzero;
+	if(hx<0) return vzero/vzero;
         if(ix >= 0x40000000) {  /* |x| >= 2.0 */
         /* y0(x) = sqrt(2/(pi*x))*(p0(x)*sin(x0)+q0(x)*cos(x0))
          * where x0 = x-pi/4
@@ -136,14 +141,14 @@ __ieee754_y0f(float x)
                     if ((s*c)<zero) cc = z/ss;
                     else            ss = z/cc;
                 }
-                if(ix>0x80000000) z = (invsqrtpi*ss)/sqrtf(x);
+                if(ix>0x58000000) z = (invsqrtpi*ss)/sqrtf(x); /* |x|>2**49 */
                 else {
                     u = pzerof(x); v = qzerof(x);
                     z = invsqrtpi*(u*ss+v*cc)/sqrtf(x);
                 }
                 return z;
 	}
-	if(ix<=0x32000000) {	/* x < 2**-27 */
+	if(ix<=0x39000000) {	/* x < 2**-13 */
 	    return(u00 + tpi*__ieee754_logf(x));
 	}
 	z = x*x;
@@ -224,7 +229,8 @@ static const float pS2[5] = {
   1.4657617569e+01, /* 0x416a859a */
 };
 
-	static float pzerof(float x)
+static __inline float
+pzerof(float x)
 {
 	const float *p,*q;
 	float z,r,s;
@@ -232,9 +238,9 @@ static const float pS2[5] = {
 	GET_FLOAT_WORD(ix,x);
 	ix &= 0x7fffffff;
 	if(ix>=0x41000000)     {p = pR8; q= pS8;}
-	else if(ix>=0x40f71c58){p = pR5; q= pS5;}
-	else if(ix>=0x4036db68){p = pR3; q= pS3;}
-	else if(ix>=0x40000000){p = pR2; q= pS2;}
+	else if(ix>=0x409173eb){p = pR5; q= pS5;}
+	else if(ix>=0x4036d917){p = pR3; q= pS3;}
+	else                   {p = pR2; q= pS2;}	/* ix>=0x40000000 */
 	z = one/(x*x);
 	r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
 	s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*q[4]))));
@@ -319,7 +325,8 @@ static const float qS2[6] = {
  -5.3109550476e+00, /* 0xc0a9f358 */
 };
 
-	static float qzerof(float x)
+static __inline float
+qzerof(float x)
 {
 	const float *p,*q;
 	float s,r,z;
@@ -327,9 +334,9 @@ static const float qS2[6] = {
 	GET_FLOAT_WORD(ix,x);
 	ix &= 0x7fffffff;
 	if(ix>=0x41000000)     {p = qR8; q= qS8;}
-	else if(ix>=0x40f71c58){p = qR5; q= qS5;}
-	else if(ix>=0x4036db68){p = qR3; q= qS3;}
-	else if(ix>=0x40000000){p = qR2; q= qS2;}
+	else if(ix>=0x409173eb){p = qR5; q= qS5;}
+	else if(ix>=0x4036d917){p = qR3; q= qS3;}
+	else                   {p = qR2; q= qS2;}	/* ix>=0x40000000 */
 	z = one/(x*x);
 	r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
 	s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*(q[4]+z*q[5])))));
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j1.c b/libm/upstream-freebsd/lib/msun/src/e_j1.c
index 63800ad..b11ac2d 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j1.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j1.c
@@ -12,7 +12,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/e_j1.c 283032 2015-05-17 16:27:06Z kargl $");
 
 /* __ieee754_j1(x), __ieee754_y1(x)
  * Bessel function of the first and second kinds of order zero.
@@ -62,7 +62,9 @@ __FBSDID("$FreeBSD$");
 #include "math.h"
 #include "math_private.h"
 
-static double pone(double), qone(double);
+static __inline double pone(double), qone(double);
+
+static const volatile double vone = 1, vzero = 0;
 
 static const double
 huge    = 1e300,
@@ -147,10 +149,16 @@ __ieee754_y1(double x)
 
 	EXTRACT_WORDS(hx,lx,x);
         ix = 0x7fffffff&hx;
-    /* if Y1(NaN) is NaN, Y1(-inf) is NaN, Y1(inf) is 0 */
-	if(ix>=0x7ff00000) return  one/(x+x*x); 
-        if((ix|lx)==0) return -one/zero;
-        if(hx<0) return zero/zero;
+	/*
+	 * y1(NaN) = NaN.
+	 * y1(Inf) = 0.
+	 * y1(-Inf) = NaN and raise invalid exception.
+	 */
+	if(ix>=0x7ff00000) return  vone/(x+x*x); 
+	/* y1(+-0) = -inf and raise divide-by-zero exception. */
+        if((ix|lx)==0) return -one/vzero;
+	/* y1(x<0) = NaN and raise invalid exception. */
+        if(hx<0) return vzero/vzero;
         if(ix >= 0x40000000) {  /* |x| >= 2.0 */
                 s = sin(x);
                 c = cos(x);
@@ -262,7 +270,8 @@ static const double ps2[5] = {
   8.36463893371618283368e+00, /* 0x4020BAB1, 0xF44E5192 */
 };
 
-	static double pone(double x)
+static __inline double
+pone(double x)
 {
 	const double *p,*q;
 	double z,r,s;
@@ -272,7 +281,7 @@ static const double ps2[5] = {
         if(ix>=0x40200000)     {p = pr8; q= ps8;}
         else if(ix>=0x40122E8B){p = pr5; q= ps5;}
         else if(ix>=0x4006DB6D){p = pr3; q= ps3;}
-        else if(ix>=0x40000000){p = pr2; q= ps2;}
+	else                   {p = pr2; q= ps2;}	/* ix>=0x40000000 */
         z = one/(x*x);
         r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
         s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*q[4]))));
@@ -358,7 +367,8 @@ static const double qs2[6] = {
  -4.95949898822628210127e+00, /* 0xC013D686, 0xE71BE86B */
 };
 
-	static double qone(double x)
+static __inline double
+qone(double x)
 {
 	const double *p,*q;
 	double  s,r,z;
@@ -368,7 +378,7 @@ static const double qs2[6] = {
 	if(ix>=0x40200000)     {p = qr8; q= qs8;}
 	else if(ix>=0x40122E8B){p = qr5; q= qs5;}
 	else if(ix>=0x4006DB6D){p = qr3; q= qs3;}
-	else if(ix>=0x40000000){p = qr2; q= qs2;}
+	else                   {p = qr2; q= qs2;}	/* ix>=0x40000000 */
 	z = one/(x*x);
 	r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
 	s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*(q[4]+z*q[5])))));
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j1f.c b/libm/upstream-freebsd/lib/msun/src/e_j1f.c
index 88e2d83..0cca823 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j1f.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j1f.c
@@ -14,12 +14,18 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/e_j1f.c 283032 2015-05-17 16:27:06Z kargl $");
+
+/*
+ * See e_j1.c for complete comments.
+ */
 
 #include "math.h"
 #include "math_private.h"
 
-static float ponef(float), qonef(float);
+static __inline float ponef(float), qonef(float);
+
+static const volatile float vone = 1, vzero = 0;
 
 static const float
 huge    = 1e30,
@@ -63,7 +69,7 @@ __ieee754_j1f(float x)
 	 * j1(x) = 1/sqrt(pi) * (P(1,x)*cc - Q(1,x)*ss) / sqrt(x)
 	 * y1(x) = 1/sqrt(pi) * (P(1,x)*ss + Q(1,x)*cc) / sqrt(x)
 	 */
-		if(ix>0x80000000) z = (invsqrtpi*cc)/sqrtf(y);
+		if(ix>0x58000000) z = (invsqrtpi*cc)/sqrtf(y); /* |x|>2**49 */
 		else {
 		    u = ponef(y); v = qonef(y);
 		    z = invsqrtpi*(u*cc-v*ss)/sqrtf(y);
@@ -71,7 +77,7 @@ __ieee754_j1f(float x)
 		if(hx<0) return -z;
 		else  	 return  z;
 	}
-	if(ix<0x32000000) {	/* |x|<2**-27 */
+	if(ix<0x39000000) {	/* |x|<2**-13 */
 	    if(huge+x>one) return (float)0.5*x;/* inexact if x!=0 necessary */
 	}
 	z = x*x;
@@ -104,10 +110,9 @@ __ieee754_y1f(float x)
 
 	GET_FLOAT_WORD(hx,x);
         ix = 0x7fffffff&hx;
-    /* if Y1(NaN) is NaN, Y1(-inf) is NaN, Y1(inf) is 0 */
-	if(ix>=0x7f800000) return  one/(x+x*x);
-        if(ix==0) return -one/zero;
-        if(hx<0) return zero/zero;
+	if(ix>=0x7f800000) return  vone/(x+x*x);
+	if(ix==0) return -one/vzero;
+	if(hx<0) return vzero/vzero;
         if(ix >= 0x40000000) {  /* |x| >= 2.0 */
                 s = sinf(x);
                 c = cosf(x);
@@ -129,14 +134,14 @@ __ieee754_y1f(float x)
          *              sin(x) +- cos(x) = -cos(2x)/(sin(x) -+ cos(x))
          * to compute the worse one.
          */
-                if(ix>0x48000000) z = (invsqrtpi*ss)/sqrtf(x);
+                if(ix>0x58000000) z = (invsqrtpi*ss)/sqrtf(x); /* |x|>2**49 */
                 else {
                     u = ponef(x); v = qonef(x);
                     z = invsqrtpi*(u*ss+v*cc)/sqrtf(x);
                 }
                 return z;
         }
-        if(ix<=0x24800000) {    /* x < 2**-54 */
+        if(ix<=0x33000000) {    /* x < 2**-25 */
             return(-tpi/x);
         }
         z = x*x;
@@ -219,7 +224,8 @@ static const float ps2[5] = {
   8.3646392822e+00, /* 0x4105d590 */
 };
 
-	static float ponef(float x)
+static __inline float
+ponef(float x)
 {
 	const float *p,*q;
 	float z,r,s;
@@ -227,9 +233,9 @@ static const float ps2[5] = {
 	GET_FLOAT_WORD(ix,x);
 	ix &= 0x7fffffff;
         if(ix>=0x41000000)     {p = pr8; q= ps8;}
-        else if(ix>=0x40f71c58){p = pr5; q= ps5;}
-        else if(ix>=0x4036db68){p = pr3; q= ps3;}
-        else if(ix>=0x40000000){p = pr2; q= ps2;}
+        else if(ix>=0x409173eb){p = pr5; q= ps5;}
+        else if(ix>=0x4036d917){p = pr3; q= ps3;}
+	else                   {p = pr2; q= ps2;}	/* ix>=0x40000000 */
         z = one/(x*x);
         r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
         s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*q[4]))));
@@ -315,17 +321,18 @@ static const float qs2[6] = {
  -4.9594988823e+00, /* 0xc09eb437 */
 };
 
-	static float qonef(float x)
+static __inline float
+qonef(float x)
 {
 	const float *p,*q;
 	float  s,r,z;
 	int32_t ix;
 	GET_FLOAT_WORD(ix,x);
 	ix &= 0x7fffffff;
-	if(ix>=0x40200000)     {p = qr8; q= qs8;}
-	else if(ix>=0x40f71c58){p = qr5; q= qs5;}
-	else if(ix>=0x4036db68){p = qr3; q= qs3;}
-	else if(ix>=0x40000000){p = qr2; q= qs2;}
+	if(ix>=0x41000000)     {p = qr8; q= qs8;}
+	else if(ix>=0x409173eb){p = qr5; q= qs5;}
+	else if(ix>=0x4036d917){p = qr3; q= qs3;}
+	else                   {p = qr2; q= qs2;}	/* ix>=0x40000000 */
 	z = one/(x*x);
 	r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));
 	s = one+z*(q[0]+z*(q[1]+z*(q[2]+z*(q[3]+z*(q[4]+z*q[5])))));
diff --git a/libm/upstream-freebsd/lib/msun/src/e_jn.c b/libm/upstream-freebsd/lib/msun/src/e_jn.c
index 8b0bc62..a1130c5 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_jn.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_jn.c
@@ -12,7 +12,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/e_jn.c 279856 2015-03-10 17:10:54Z kargl $");
 
 /*
  * __ieee754_jn(n, x), __ieee754_yn(n, x)
@@ -43,6 +43,8 @@ __FBSDID("$FreeBSD$");
 #include "math.h"
 #include "math_private.h"
 
+static const volatile double vone = 1, vzero = 0;
+
 static const double
 invsqrtpi=  5.64189583547756279280e-01, /* 0x3FE20DD7, 0x50429B6D */
 two   =  2.00000000000000000000e+00, /* 0x40000000, 0x00000000 */
@@ -220,10 +222,12 @@ __ieee754_yn(int n, double x)
 
 	EXTRACT_WORDS(hx,lx,x);
 	ix = 0x7fffffff&hx;
-    /* if Y(n,NaN) is NaN */
+	/* yn(n,NaN) = NaN */
 	if((ix|((u_int32_t)(lx|-lx))>>31)>0x7ff00000) return x+x;
-	if((ix|lx)==0) return -one/zero;
-	if(hx<0) return zero/zero;
+	/* yn(n,+-0) = -inf and raise divide-by-zero exception. */
+	if((ix|lx)==0) return -one/vzero;
+	/* yn(n,x<0) = NaN and raise invalid exception. */
+	if(hx<0) return vzero/vzero;
 	sign = 1;
 	if(n<0){
 		n = -n;
diff --git a/libm/upstream-freebsd/lib/msun/src/e_jnf.c b/libm/upstream-freebsd/lib/msun/src/e_jnf.c
index f564aec..c82d5cf 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_jnf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_jnf.c
@@ -14,11 +14,17 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/e_jnf.c 279856 2015-03-10 17:10:54Z kargl $");
+
+/*
+ * See e_jn.c for complete comments.
+ */
 
 #include "math.h"
 #include "math_private.h"
 
+static const volatile float vone = 1, vzero = 0;
+
 static const float
 two   =  2.0000000000e+00, /* 0x40000000 */
 one   =  1.0000000000e+00; /* 0x3F800000 */
@@ -172,10 +178,9 @@ __ieee754_ynf(int n, float x)
 
 	GET_FLOAT_WORD(hx,x);
 	ix = 0x7fffffff&hx;
-    /* if Y(n,NaN) is NaN */
 	if(ix>0x7f800000) return x+x;
-	if(ix==0) return -one/zero;
-	if(hx<0) return zero/zero;
+	if(ix==0) return -one/vzero;
+	if(hx<0) return vzero/vzero;
 	sign = 1;
 	if(n<0){
 		n = -n;
diff --git a/libm/upstream-freebsd/lib/msun/src/k_exp.c b/libm/upstream-freebsd/lib/msun/src/k_exp.c
index f592f69..5aa3ef3 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_exp.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_exp.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/k_exp.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 
@@ -103,6 +103,6 @@ __ldexp_cexp(double complex z, int expt)
 	half_expt = expt - half_expt;
 	INSERT_WORDS(scale2, (0x3ff + half_expt) << 20, 0);
 
-	return (cpack(cos(y) * exp_x * scale1 * scale2,
+	return (CMPLX(cos(y) * exp_x * scale1 * scale2,
 	    sin(y) * exp_x * scale1 * scale2));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/k_expf.c b/libm/upstream-freebsd/lib/msun/src/k_expf.c
index 548a008..8fe8c46 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_expf.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_expf.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/k_expf.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 
@@ -82,6 +82,6 @@ __ldexp_cexpf(float complex z, int expt)
 	half_expt = expt - half_expt;
 	SET_FLOAT_WORD(scale2, (0x7f + half_expt) << 23);
 
-	return (cpackf(cosf(y) * exp_x * scale1 * scale2,
+	return (CMPLXF(cosf(y) * exp_x * scale1 * scale2,
 	    sinf(y) * exp_x * scale1 * scale2));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/math_private.h b/libm/upstream-freebsd/lib/msun/src/math_private.h
index 8af2c65..1f10e8b 100644
--- a/libm/upstream-freebsd/lib/msun/src/math_private.h
+++ b/libm/upstream-freebsd/lib/msun/src/math_private.h
@@ -11,7 +11,7 @@
 
 /*
  * from: @(#)fdlibm.h 5.1 93/09/24
- * $FreeBSD$
+ * $FreeBSD: head/lib/msun/src/math_private.h 276176 2014-12-24 10:13:53Z ed $
  */
 
 #ifndef _MATH_PRIVATE_H_
@@ -454,9 +454,15 @@ typedef union {
  * (0.0+I)*(y+0.0*I) and laboriously computing the full complex product.
  * In particular, I*Inf is corrupted to NaN+I*Inf, and I*-0 is corrupted
  * to -0.0+I*0.0.
+ *
+ * The C11 standard introduced the macros CMPLX(), CMPLXF() and CMPLXL()
+ * to construct complex values.  Compilers that conform to the C99
+ * standard require the following functions to avoid the above issues.
  */
+
+#ifndef CMPLXF
 static __inline float complex
-cpackf(float x, float y)
+CMPLXF(float x, float y)
 {
 	float_complex z;
 
@@ -464,9 +470,11 @@ cpackf(float x, float y)
 	IMAGPART(z) = y;
 	return (z.f);
 }
+#endif
 
+#ifndef CMPLX
 static __inline double complex
-cpack(double x, double y)
+CMPLX(double x, double y)
 {
 	double_complex z;
 
@@ -474,9 +482,11 @@ cpack(double x, double y)
 	IMAGPART(z) = y;
 	return (z.f);
 }
+#endif
 
+#ifndef CMPLXL
 static __inline long double complex
-cpackl(long double x, long double y)
+CMPLXL(long double x, long double y)
 {
 	long_double_complex z;
 
@@ -484,6 +494,8 @@ cpackl(long double x, long double y)
 	IMAGPART(z) = y;
 	return (z.f);
 }
+#endif
+
 #endif /* _COMPLEX_H */
  
 #ifdef __GNUCLIKE_ASM
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ccosh.c b/libm/upstream-freebsd/lib/msun/src/s_ccosh.c
index 9ea962b..e544e91 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ccosh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ccosh.c
@@ -32,10 +32,12 @@
  *
  * Exceptional values are noted in the comments within the source code.
  * These values and the return value were taken from n1124.pdf.
+ * The sign of the result for some exceptional values is unspecified but
+ * must satisfy both cosh(conj(z)) == conj(cosh(z)) and cosh(-z) == cosh(z).
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_ccosh.c 284423 2015-06-15 20:11:06Z tijl $");
 
 #include <complex.h>
 #include <math.h>
@@ -62,49 +64,48 @@ ccosh(double complex z)
 	/* Handle the nearly-non-exceptional cases where x and y are finite. */
 	if (ix < 0x7ff00000 && iy < 0x7ff00000) {
 		if ((iy | ly) == 0)
-			return (cpack(cosh(x), x * y));
-		if (ix < 0x40360000)	/* small x: normal case */
-			return (cpack(cosh(x) * cos(y), sinh(x) * sin(y)));
+			return (CMPLX(cosh(x), x * y));
+		if (ix < 0x40360000)	/* |x| < 22: normal case */
+			return (CMPLX(cosh(x) * cos(y), sinh(x) * sin(y)));
 
 		/* |x| >= 22, so cosh(x) ~= exp(|x|) */
 		if (ix < 0x40862e42) {
 			/* x < 710: exp(|x|) won't overflow */
 			h = exp(fabs(x)) * 0.5;
-			return (cpack(h * cos(y), copysign(h, x) * sin(y)));
+			return (CMPLX(h * cos(y), copysign(h, x) * sin(y)));
 		} else if (ix < 0x4096bbaa) {
 			/* x < 1455: scale to avoid overflow */
-			z = __ldexp_cexp(cpack(fabs(x), y), -1);
-			return (cpack(creal(z), cimag(z) * copysign(1, x)));
+			z = __ldexp_cexp(CMPLX(fabs(x), y), -1);
+			return (CMPLX(creal(z), cimag(z) * copysign(1, x)));
 		} else {
 			/* x >= 1455: the result always overflows */
 			h = huge * x;
-			return (cpack(h * h * cos(y), h * sin(y)));
+			return (CMPLX(h * h * cos(y), h * sin(y)));
 		}
 	}
 
 	/*
-	 * cosh(+-0 +- I Inf) = dNaN + I sign(d(+-0, dNaN))0.
-	 * The sign of 0 in the result is unspecified.  Choice = normally
-	 * the same as dNaN.  Raise the invalid floating-point exception.
+	 * cosh(+-0 +- I Inf) = dNaN + I (+-)(+-)0.
+	 * The sign of 0 in the result is unspecified.  Choice = product
+	 * of the signs of the argument.  Raise the invalid floating-point
+	 * exception.
 	 *
-	 * cosh(+-0 +- I NaN) = d(NaN) + I sign(d(+-0, NaN))0.
-	 * The sign of 0 in the result is unspecified.  Choice = normally
-	 * the same as d(NaN).
+	 * cosh(+-0 +- I NaN) = d(NaN) + I (+-)(+-)0.
+	 * The sign of 0 in the result is unspecified.  Choice = product
+	 * of the signs of the argument.
 	 */
-	if ((ix | lx) == 0 && iy >= 0x7ff00000)
-		return (cpack(y - y, copysign(0, x * (y - y))));
+	if ((ix | lx) == 0)		/* && iy >= 0x7ff00000 */
+		return (CMPLX(y - y, x * copysign(0, y)));
 
 	/*
 	 * cosh(+-Inf +- I 0) = +Inf + I (+-)(+-)0.
 	 *
-	 * cosh(NaN +- I 0)   = d(NaN) + I sign(d(NaN, +-0))0.
-	 * The sign of 0 in the result is unspecified.
+	 * cosh(NaN +- I 0)   = d(NaN) + I (+-)(+-)0.
+	 * The sign of 0 in the result is unspecified.  Choice = product
+	 * of the signs of the argument.
 	 */
-	if ((iy | ly) == 0 && ix >= 0x7ff00000) {
-		if (((hx & 0xfffff) | lx) == 0)
-			return (cpack(x * x, copysign(0, x) * y));
-		return (cpack(x * x, copysign(0, (x + x) * y)));
-	}
+	if ((iy | ly) == 0)		/* && ix >= 0x7ff00000 */
+		return (CMPLX(x * x, copysign(0, x) * y));
 
 	/*
 	 * cosh(x +- I Inf) = dNaN + I dNaN.
@@ -114,8 +115,8 @@ ccosh(double complex z)
 	 * Optionally raises the invalid floating-point exception for finite
 	 * nonzero x.  Choice = don't raise (except for signaling NaNs).
 	 */
-	if (ix < 0x7ff00000 && iy >= 0x7ff00000)
-		return (cpack(y - y, x * (y - y)));
+	if (ix < 0x7ff00000)		/* && iy >= 0x7ff00000 */
+		return (CMPLX(y - y, x * (y - y)));
 
 	/*
 	 * cosh(+-Inf + I NaN)  = +Inf + I d(NaN).
@@ -126,10 +127,10 @@ ccosh(double complex z)
 	 *
 	 * cosh(+-Inf + I y)   = +Inf cos(y) +- I Inf sin(y)
 	 */
-	if (ix >= 0x7ff00000 && ((hx & 0xfffff) | lx) == 0) {
+	if (ix == 0x7ff00000 && lx == 0) {
 		if (iy >= 0x7ff00000)
-			return (cpack(x * x, x * (y - y)));
-		return (cpack((x * x) * cos(y), x * sin(y)));
+			return (CMPLX(INFINITY, x * (y - y)));
+		return (CMPLX(INFINITY * cos(y), x * sin(y)));
 	}
 
 	/*
@@ -143,7 +144,7 @@ ccosh(double complex z)
 	 * Optionally raises the invalid floating-point exception for finite
 	 * nonzero y.  Choice = don't raise (except for signaling NaNs).
 	 */
-	return (cpack((x * x) * (y - y), (x + x) * (y - y)));
+	return (CMPLX((x * x) * (y - y), (x + x) * (y - y)));
 }
 
 double complex
@@ -151,5 +152,5 @@ ccos(double complex z)
 {
 
 	/* ccos(z) = ccosh(I * z) */
-	return (ccosh(cpack(-cimag(z), creal(z))));
+	return (ccosh(CMPLX(-cimag(z), creal(z))));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c b/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c
index 1de9ad4..e33840a 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c
@@ -25,11 +25,11 @@
  */
 
 /*
- * Hyperbolic cosine of a complex argument.  See s_ccosh.c for details.
+ * Float version of ccosh().  See s_ccosh.c for details.
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_ccoshf.c 284423 2015-06-15 20:11:06Z tijl $");
 
 #include <complex.h>
 #include <math.h>
@@ -55,50 +55,47 @@ ccoshf(float complex z)
 
 	if (ix < 0x7f800000 && iy < 0x7f800000) {
 		if (iy == 0)
-			return (cpackf(coshf(x), x * y));
-		if (ix < 0x41100000)	/* small x: normal case */
-			return (cpackf(coshf(x) * cosf(y), sinhf(x) * sinf(y)));
+			return (CMPLXF(coshf(x), x * y));
+		if (ix < 0x41100000)	/* |x| < 9: normal case */
+			return (CMPLXF(coshf(x) * cosf(y), sinhf(x) * sinf(y)));
 
 		/* |x| >= 9, so cosh(x) ~= exp(|x|) */
 		if (ix < 0x42b17218) {
 			/* x < 88.7: expf(|x|) won't overflow */
-			h = expf(fabsf(x)) * 0.5f;
-			return (cpackf(h * cosf(y), copysignf(h, x) * sinf(y)));
+			h = expf(fabsf(x)) * 0.5F;
+			return (CMPLXF(h * cosf(y), copysignf(h, x) * sinf(y)));
 		} else if (ix < 0x4340b1e7) {
 			/* x < 192.7: scale to avoid overflow */
-			z = __ldexp_cexpf(cpackf(fabsf(x), y), -1);
-			return (cpackf(crealf(z), cimagf(z) * copysignf(1, x)));
+			z = __ldexp_cexpf(CMPLXF(fabsf(x), y), -1);
+			return (CMPLXF(crealf(z), cimagf(z) * copysignf(1, x)));
 		} else {
 			/* x >= 192.7: the result always overflows */
 			h = huge * x;
-			return (cpackf(h * h * cosf(y), h * sinf(y)));
+			return (CMPLXF(h * h * cosf(y), h * sinf(y)));
 		}
 	}
 
-	if (ix == 0 && iy >= 0x7f800000)
-		return (cpackf(y - y, copysignf(0, x * (y - y))));
+	if (ix == 0)			/* && iy >= 0x7f800000 */
+		return (CMPLXF(y - y, x * copysignf(0, y)));
 
-	if (iy == 0 && ix >= 0x7f800000) {
-		if ((hx & 0x7fffff) == 0)
-			return (cpackf(x * x, copysignf(0, x) * y));
-		return (cpackf(x * x, copysignf(0, (x + x) * y)));
-	}
+	if (iy == 0)			/* && ix >= 0x7f800000 */
+		return (CMPLXF(x * x, copysignf(0, x) * y));
 
-	if (ix < 0x7f800000 && iy >= 0x7f800000)
-		return (cpackf(y - y, x * (y - y)));
+	if (ix < 0x7f800000)		/* && iy >= 0x7f800000 */
+		return (CMPLXF(y - y, x * (y - y)));
 
-	if (ix >= 0x7f800000 && (hx & 0x7fffff) == 0) {
+	if (ix == 0x7f800000) {
 		if (iy >= 0x7f800000)
-			return (cpackf(x * x, x * (y - y)));
-		return (cpackf((x * x) * cosf(y), x * sinf(y)));
+			return (CMPLXF(INFINITY, x * (y - y)));
+		return (CMPLXF(INFINITY * cosf(y), x * sinf(y)));
 	}
 
-	return (cpackf((x * x) * (y - y), (x + x) * (y - y)));
+	return (CMPLXF((x * x) * (y - y), (x + x) * (y - y)));
 }
 
 float complex
 ccosf(float complex z)
 {
 
-	return (ccoshf(cpackf(-cimagf(z), crealf(z))));
+	return (ccoshf(CMPLXF(-cimagf(z), crealf(z))));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cexp.c b/libm/upstream-freebsd/lib/msun/src/s_cexp.c
index abe178f..660a68d 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cexp.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cexp.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_cexp.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <math.h>
@@ -50,22 +50,22 @@ cexp(double complex z)
 
 	/* cexp(x + I 0) = exp(x) + I 0 */
 	if ((hy | ly) == 0)
-		return (cpack(exp(x), y));
+		return (CMPLX(exp(x), y));
 	EXTRACT_WORDS(hx, lx, x);
 	/* cexp(0 + I y) = cos(y) + I sin(y) */
 	if (((hx & 0x7fffffff) | lx) == 0)
-		return (cpack(cos(y), sin(y)));
+		return (CMPLX(cos(y), sin(y)));
 
 	if (hy >= 0x7ff00000) {
 		if (lx != 0 || (hx & 0x7fffffff) != 0x7ff00000) {
 			/* cexp(finite|NaN +- I Inf|NaN) = NaN + I NaN */
-			return (cpack(y - y, y - y));
+			return (CMPLX(y - y, y - y));
 		} else if (hx & 0x80000000) {
 			/* cexp(-Inf +- I Inf|NaN) = 0 + I 0 */
-			return (cpack(0.0, 0.0));
+			return (CMPLX(0.0, 0.0));
 		} else {
 			/* cexp(+Inf +- I Inf|NaN) = Inf + I NaN */
-			return (cpack(x, y - y));
+			return (CMPLX(x, y - y));
 		}
 	}
 
@@ -84,6 +84,6 @@ cexp(double complex z)
 		 *  -  x = NaN (spurious inexact exception from y)
 		 */
 		exp_x = exp(x);
-		return (cpack(exp_x * cos(y), exp_x * sin(y)));
+		return (CMPLX(exp_x * cos(y), exp_x * sin(y)));
 	}
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cexpf.c b/libm/upstream-freebsd/lib/msun/src/s_cexpf.c
index 0e30d08..709ad47 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cexpf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cexpf.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_cexpf.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <math.h>
@@ -50,22 +50,22 @@ cexpf(float complex z)
 
 	/* cexp(x + I 0) = exp(x) + I 0 */
 	if (hy == 0)
-		return (cpackf(expf(x), y));
+		return (CMPLXF(expf(x), y));
 	GET_FLOAT_WORD(hx, x);
 	/* cexp(0 + I y) = cos(y) + I sin(y) */
 	if ((hx & 0x7fffffff) == 0)
-		return (cpackf(cosf(y), sinf(y)));
+		return (CMPLXF(cosf(y), sinf(y)));
 
 	if (hy >= 0x7f800000) {
 		if ((hx & 0x7fffffff) != 0x7f800000) {
 			/* cexp(finite|NaN +- I Inf|NaN) = NaN + I NaN */
-			return (cpackf(y - y, y - y));
+			return (CMPLXF(y - y, y - y));
 		} else if (hx & 0x80000000) {
 			/* cexp(-Inf +- I Inf|NaN) = 0 + I 0 */
-			return (cpackf(0.0, 0.0));
+			return (CMPLXF(0.0, 0.0));
 		} else {
 			/* cexp(+Inf +- I Inf|NaN) = Inf + I NaN */
-			return (cpackf(x, y - y));
+			return (CMPLXF(x, y - y));
 		}
 	}
 
@@ -84,6 +84,6 @@ cexpf(float complex z)
 		 *  -  x = NaN (spurious inexact exception from y)
 		 */
 		exp_x = expf(x);
-		return (cpackf(exp_x * cosf(y), exp_x * sinf(y)));
+		return (CMPLXF(exp_x * cosf(y), exp_x * sinf(y)));
 	}
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_conj.c b/libm/upstream-freebsd/lib/msun/src/s_conj.c
index 5770c29..61fac63 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_conj.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_conj.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $FreeBSD$
+ * $FreeBSD: head/lib/msun/src/s_conj.c 275819 2014-12-16 09:21:56Z ed $
  */
 
 #include <complex.h>
@@ -34,5 +34,5 @@ double complex
 conj(double complex z)
 {
 
-	return (cpack(creal(z), -cimag(z)));
+	return (CMPLX(creal(z), -cimag(z)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_conjf.c b/libm/upstream-freebsd/lib/msun/src/s_conjf.c
index b090760..83c9ef0 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_conjf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_conjf.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $FreeBSD$
+ * $FreeBSD: head/lib/msun/src/s_conjf.c 275819 2014-12-16 09:21:56Z ed $
  */
 
 #include <complex.h>
@@ -34,5 +34,5 @@ float complex
 conjf(float complex z)
 {
 
-	return (cpackf(crealf(z), -cimagf(z)));
+	return (CMPLXF(crealf(z), -cimagf(z)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_conjl.c b/libm/upstream-freebsd/lib/msun/src/s_conjl.c
index 0e431ef..d9e6a16 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_conjl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_conjl.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $FreeBSD$
+ * $FreeBSD: head/lib/msun/src/s_conjl.c 275819 2014-12-16 09:21:56Z ed $
  */
 
 #include <complex.h>
@@ -34,5 +34,5 @@ long double complex
 conjl(long double complex z)
 {
 
-	return (cpackl(creall(z), -cimagl(z)));
+	return (CMPLXL(creall(z), -cimagl(z)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cproj.c b/libm/upstream-freebsd/lib/msun/src/s_cproj.c
index 8e9404c..ec2266e 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cproj.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cproj.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_cproj.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <math.h>
@@ -39,7 +39,7 @@ cproj(double complex z)
 	if (!isinf(creal(z)) && !isinf(cimag(z)))
 		return (z);
 	else
-		return (cpack(INFINITY, copysign(0.0, cimag(z))));
+		return (CMPLX(INFINITY, copysign(0.0, cimag(z))));
 }
 
 #if LDBL_MANT_DIG == 53
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cprojf.c b/libm/upstream-freebsd/lib/msun/src/s_cprojf.c
index 68ea77b..63af75f 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cprojf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cprojf.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_cprojf.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <math.h>
@@ -39,5 +39,5 @@ cprojf(float complex z)
 	if (!isinf(crealf(z)) && !isinf(cimagf(z)))
 		return (z);
 	else
-		return (cpackf(INFINITY, copysignf(0.0, cimagf(z))));
+		return (CMPLXF(INFINITY, copysignf(0.0, cimagf(z))));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cprojl.c b/libm/upstream-freebsd/lib/msun/src/s_cprojl.c
index 07385bc..8386f81 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cprojl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cprojl.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_cprojl.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <math.h>
@@ -39,5 +39,5 @@ cprojl(long double complex z)
 	if (!isinf(creall(z)) && !isinf(cimagl(z)))
 		return (z);
 	else
-		return (cpackl(INFINITY, copysignl(0.0, cimagl(z))));
+		return (CMPLXL(INFINITY, copysignl(0.0, cimagl(z))));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csinh.c b/libm/upstream-freebsd/lib/msun/src/s_csinh.c
index c192f30..cff1402 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csinh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csinh.c
@@ -32,10 +32,12 @@
  *
  * Exceptional values are noted in the comments within the source code.
  * These values and the return value were taken from n1124.pdf.
+ * The sign of the result for some exceptional values is unspecified but
+ * must satisfy both sinh(conj(z)) == conj(sinh(z)) and sinh(-z) == -sinh(z).
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_csinh.c 284426 2015-06-15 20:16:53Z tijl $");
 
 #include <complex.h>
 #include <math.h>
@@ -62,48 +64,45 @@ csinh(double complex z)
 	/* Handle the nearly-non-exceptional cases where x and y are finite. */
 	if (ix < 0x7ff00000 && iy < 0x7ff00000) {
 		if ((iy | ly) == 0)
-			return (cpack(sinh(x), y));
-		if (ix < 0x40360000)	/* small x: normal case */
-			return (cpack(sinh(x) * cos(y), cosh(x) * sin(y)));
+			return (CMPLX(sinh(x), y));
+		if (ix < 0x40360000)	/* |x| < 22: normal case */
+			return (CMPLX(sinh(x) * cos(y), cosh(x) * sin(y)));
 
 		/* |x| >= 22, so cosh(x) ~= exp(|x|) */
 		if (ix < 0x40862e42) {
 			/* x < 710: exp(|x|) won't overflow */
 			h = exp(fabs(x)) * 0.5;
-			return (cpack(copysign(h, x) * cos(y), h * sin(y)));
+			return (CMPLX(copysign(h, x) * cos(y), h * sin(y)));
 		} else if (ix < 0x4096bbaa) {
 			/* x < 1455: scale to avoid overflow */
-			z = __ldexp_cexp(cpack(fabs(x), y), -1);
-			return (cpack(creal(z) * copysign(1, x), cimag(z)));
+			z = __ldexp_cexp(CMPLX(fabs(x), y), -1);
+			return (CMPLX(creal(z) * copysign(1, x), cimag(z)));
 		} else {
 			/* x >= 1455: the result always overflows */
 			h = huge * x;
-			return (cpack(h * cos(y), h * h * sin(y)));
+			return (CMPLX(h * cos(y), h * h * sin(y)));
 		}
 	}
 
 	/*
-	 * sinh(+-0 +- I Inf) = sign(d(+-0, dNaN))0 + I dNaN.
-	 * The sign of 0 in the result is unspecified.  Choice = normally
-	 * the same as dNaN.  Raise the invalid floating-point exception.
+	 * sinh(+-0 +- I Inf) = +-0 + I dNaN.
+	 * The sign of 0 in the result is unspecified.  Choice = same sign
+	 * as the argument.  Raise the invalid floating-point exception.
 	 *
-	 * sinh(+-0 +- I NaN) = sign(d(+-0, NaN))0 + I d(NaN).
-	 * The sign of 0 in the result is unspecified.  Choice = normally
-	 * the same as d(NaN).
+	 * sinh(+-0 +- I NaN) = +-0 + I d(NaN).
+	 * The sign of 0 in the result is unspecified.  Choice = same sign
+	 * as the argument.
 	 */
-	if ((ix | lx) == 0 && iy >= 0x7ff00000)
-		return (cpack(copysign(0, x * (y - y)), y - y));
+	if ((ix | lx) == 0)		/* && iy >= 0x7ff00000 */
+		return (CMPLX(x, y - y));
 
 	/*
 	 * sinh(+-Inf +- I 0) = +-Inf + I +-0.
 	 *
 	 * sinh(NaN +- I 0)   = d(NaN) + I +-0.
 	 */
-	if ((iy | ly) == 0 && ix >= 0x7ff00000) {
-		if (((hx & 0xfffff) | lx) == 0)
-			return (cpack(x, y));
-		return (cpack(x, copysign(0, y)));
-	}
+	if ((iy | ly) == 0)		/* && ix >= 0x7ff00000 */
+		return (CMPLX(x + x, y));
 
 	/*
 	 * sinh(x +- I Inf) = dNaN + I dNaN.
@@ -113,45 +112,45 @@ csinh(double complex z)
 	 * Optionally raises the invalid floating-point exception for finite
 	 * nonzero x.  Choice = don't raise (except for signaling NaNs).
 	 */
-	if (ix < 0x7ff00000 && iy >= 0x7ff00000)
-		return (cpack(y - y, x * (y - y)));
+	if (ix < 0x7ff00000)		/* && iy >= 0x7ff00000 */
+		return (CMPLX(y - y, y - y));
 
 	/*
 	 * sinh(+-Inf + I NaN)  = +-Inf + I d(NaN).
-	 * The sign of Inf in the result is unspecified.  Choice = normally
-	 * the same as d(NaN).
+	 * The sign of Inf in the result is unspecified.  Choice = same sign
+	 * as the argument.
 	 *
-	 * sinh(+-Inf +- I Inf) = +Inf + I dNaN.
-	 * The sign of Inf in the result is unspecified.  Choice = always +.
-	 * Raise the invalid floating-point exception.
+	 * sinh(+-Inf +- I Inf) = +-Inf + I dNaN.
+	 * The sign of Inf in the result is unspecified.  Choice = same sign
+	 * as the argument.  Raise the invalid floating-point exception.
 	 *
 	 * sinh(+-Inf + I y)   = +-Inf cos(y) + I Inf sin(y)
 	 */
-	if (ix >= 0x7ff00000 && ((hx & 0xfffff) | lx) == 0) {
+	if (ix == 0x7ff00000 && lx == 0) {
 		if (iy >= 0x7ff00000)
-			return (cpack(x * x, x * (y - y)));
-		return (cpack(x * cos(y), INFINITY * sin(y)));
+			return (CMPLX(x, y - y));
+		return (CMPLX(x * cos(y), INFINITY * sin(y)));
 	}
 
 	/*
-	 * sinh(NaN + I NaN)  = d(NaN) + I d(NaN).
+	 * sinh(NaN1 + I NaN2) = d(NaN1, NaN2) + I d(NaN1, NaN2).
 	 *
-	 * sinh(NaN +- I Inf) = d(NaN) + I d(NaN).
+	 * sinh(NaN +- I Inf)  = d(NaN, dNaN) + I d(NaN, dNaN).
 	 * Optionally raises the invalid floating-point exception.
 	 * Choice = raise.
 	 *
-	 * sinh(NaN + I y)    = d(NaN) + I d(NaN).
+	 * sinh(NaN + I y)     = d(NaN) + I d(NaN).
 	 * Optionally raises the invalid floating-point exception for finite
 	 * nonzero y.  Choice = don't raise (except for signaling NaNs).
 	 */
-	return (cpack((x * x) * (y - y), (x + x) * (y - y)));
+	return (CMPLX((x + x) * (y - y), (x * x) * (y - y)));
 }
 
 double complex
 csin(double complex z)
 {
 
-	/* csin(z) = -I * csinh(I * z) */
-	z = csinh(cpack(-cimag(z), creal(z)));
-	return (cpack(cimag(z), -creal(z)));
+	/* csin(z) = -I * csinh(I * z) = I * conj(csinh(I * conj(z))). */
+	z = csinh(CMPLX(cimag(z), creal(z)));
+	return (CMPLX(cimag(z), creal(z)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csinhf.c b/libm/upstream-freebsd/lib/msun/src/s_csinhf.c
index c523125..f050890 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csinhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csinhf.c
@@ -25,11 +25,11 @@
  */
 
 /*
- * Hyperbolic sine of a complex argument z.  See s_csinh.c for details.
+ * Float version of csinh().  See s_csinh.c for details.
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_csinhf.c 284426 2015-06-15 20:16:53Z tijl $");
 
 #include <complex.h>
 #include <math.h>
@@ -55,51 +55,48 @@ csinhf(float complex z)
 
 	if (ix < 0x7f800000 && iy < 0x7f800000) {
 		if (iy == 0)
-			return (cpackf(sinhf(x), y));
-		if (ix < 0x41100000)	/* small x: normal case */
-			return (cpackf(sinhf(x) * cosf(y), coshf(x) * sinf(y)));
+			return (CMPLXF(sinhf(x), y));
+		if (ix < 0x41100000)	/* |x| < 9: normal case */
+			return (CMPLXF(sinhf(x) * cosf(y), coshf(x) * sinf(y)));
 
 		/* |x| >= 9, so cosh(x) ~= exp(|x|) */
 		if (ix < 0x42b17218) {
 			/* x < 88.7: expf(|x|) won't overflow */
-			h = expf(fabsf(x)) * 0.5f;
-			return (cpackf(copysignf(h, x) * cosf(y), h * sinf(y)));
+			h = expf(fabsf(x)) * 0.5F;
+			return (CMPLXF(copysignf(h, x) * cosf(y), h * sinf(y)));
 		} else if (ix < 0x4340b1e7) {
 			/* x < 192.7: scale to avoid overflow */
-			z = __ldexp_cexpf(cpackf(fabsf(x), y), -1);
-			return (cpackf(crealf(z) * copysignf(1, x), cimagf(z)));
+			z = __ldexp_cexpf(CMPLXF(fabsf(x), y), -1);
+			return (CMPLXF(crealf(z) * copysignf(1, x), cimagf(z)));
 		} else {
 			/* x >= 192.7: the result always overflows */
 			h = huge * x;
-			return (cpackf(h * cosf(y), h * h * sinf(y)));
+			return (CMPLXF(h * cosf(y), h * h * sinf(y)));
 		}
 	}
 
-	if (ix == 0 && iy >= 0x7f800000)
-		return (cpackf(copysignf(0, x * (y - y)), y - y));
+	if (ix == 0)			/* && iy >= 0x7f800000 */
+		return (CMPLXF(x, y - y));
 
-	if (iy == 0 && ix >= 0x7f800000) {
-		if ((hx & 0x7fffff) == 0)
-			return (cpackf(x, y));
-		return (cpackf(x, copysignf(0, y)));
-	}
+	if (iy == 0)			/* && ix >= 0x7f800000 */
+		return (CMPLXF(x + x, y));
 
-	if (ix < 0x7f800000 && iy >= 0x7f800000)
-		return (cpackf(y - y, x * (y - y)));
+	if (ix < 0x7f800000)		/* && iy >= 0x7f800000 */
+		return (CMPLXF(y - y, y - y));
 
-	if (ix >= 0x7f800000 && (hx & 0x7fffff) == 0) {
+	if (ix == 0x7f800000) {
 		if (iy >= 0x7f800000)
-			return (cpackf(x * x, x * (y - y)));
-		return (cpackf(x * cosf(y), INFINITY * sinf(y)));
+			return (CMPLXF(x, y - y));
+		return (CMPLXF(x * cosf(y), INFINITY * sinf(y)));
 	}
 
-	return (cpackf((x * x) * (y - y), (x + x) * (y - y)));
+	return (CMPLXF((x + x) * (y - y), (x * x) * (y - y)));
 }
 
 float complex
 csinf(float complex z)
 {
 
-	z = csinhf(cpackf(-cimagf(z), crealf(z)));
-	return (cpackf(cimagf(z), -crealf(z)));
+	z = csinhf(CMPLXF(cimagf(z), crealf(z)));
+	return (CMPLXF(cimagf(z), crealf(z)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csqrt.c b/libm/upstream-freebsd/lib/msun/src/s_csqrt.c
index 18a7ae3..c908a2d 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csqrt.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csqrt.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_csqrt.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <float.h>
@@ -58,12 +58,12 @@ csqrt(double complex z)
 
 	/* Handle special cases. */
 	if (z == 0)
-		return (cpack(0, b));
+		return (CMPLX(0, b));
 	if (isinf(b))
-		return (cpack(INFINITY, b));
+		return (CMPLX(INFINITY, b));
 	if (isnan(a)) {
 		t = (b - b) / (b - b);	/* raise invalid if b is not a NaN */
-		return (cpack(a, t));	/* return NaN + NaN i */
+		return (CMPLX(a, t));	/* return NaN + NaN i */
 	}
 	if (isinf(a)) {
 		/*
@@ -73,9 +73,9 @@ csqrt(double complex z)
 		 * csqrt(-inf + y i)   = 0   +  inf i
 		 */
 		if (signbit(a))
-			return (cpack(fabs(b - b), copysign(a, b)));
+			return (CMPLX(fabs(b - b), copysign(a, b)));
 		else
-			return (cpack(a, copysign(b - b, b)));
+			return (CMPLX(a, copysign(b - b, b)));
 	}
 	/*
 	 * The remaining special case (b is NaN) is handled just fine by
@@ -94,10 +94,10 @@ csqrt(double complex z)
 	/* Algorithm 312, CACM vol 10, Oct 1967. */
 	if (a >= 0) {
 		t = sqrt((a + hypot(a, b)) * 0.5);
-		result = cpack(t, b / (2 * t));
+		result = CMPLX(t, b / (2 * t));
 	} else {
 		t = sqrt((-a + hypot(a, b)) * 0.5);
-		result = cpack(fabs(b) / (2 * t), copysign(t, b));
+		result = CMPLX(fabs(b) / (2 * t), copysign(t, b));
 	}
 
 	/* Rescale. */
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c b/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c
index da7fe18..12a894f 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_csqrtf.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <math.h>
@@ -49,12 +49,12 @@ csqrtf(float complex z)
 
 	/* Handle special cases. */
 	if (z == 0)
-		return (cpackf(0, b));
+		return (CMPLXF(0, b));
 	if (isinf(b))
-		return (cpackf(INFINITY, b));
+		return (CMPLXF(INFINITY, b));
 	if (isnan(a)) {
 		t = (b - b) / (b - b);	/* raise invalid if b is not a NaN */
-		return (cpackf(a, t));	/* return NaN + NaN i */
+		return (CMPLXF(a, t));	/* return NaN + NaN i */
 	}
 	if (isinf(a)) {
 		/*
@@ -64,9 +64,9 @@ csqrtf(float complex z)
 		 * csqrtf(-inf + y i)   = 0   +  inf i
 		 */
 		if (signbit(a))
-			return (cpackf(fabsf(b - b), copysignf(a, b)));
+			return (CMPLXF(fabsf(b - b), copysignf(a, b)));
 		else
-			return (cpackf(a, copysignf(b - b, b)));
+			return (CMPLXF(a, copysignf(b - b, b)));
 	}
 	/*
 	 * The remaining special case (b is NaN) is handled just fine by
@@ -80,9 +80,9 @@ csqrtf(float complex z)
 	 */
 	if (a >= 0) {
 		t = sqrt((a + hypot(a, b)) * 0.5);
-		return (cpackf(t, b / (2.0 * t)));
+		return (CMPLXF(t, b / (2.0 * t)));
 	} else {
 		t = sqrt((-a + hypot(a, b)) * 0.5);
-		return (cpackf(fabsf(b) / (2.0 * t), copysignf(t, b)));
+		return (CMPLXF(fabsf(b) / (2.0 * t), copysignf(t, b)));
 	}
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c b/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c
index dd18e1e..7bcff59 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_csqrtl.c 275819 2014-12-16 09:21:56Z ed $");
 
 #include <complex.h>
 #include <float.h>
@@ -58,12 +58,12 @@ csqrtl(long double complex z)
 
 	/* Handle special cases. */
 	if (z == 0)
-		return (cpackl(0, b));
+		return (CMPLXL(0, b));
 	if (isinf(b))
-		return (cpackl(INFINITY, b));
+		return (CMPLXL(INFINITY, b));
 	if (isnan(a)) {
 		t = (b - b) / (b - b);	/* raise invalid if b is not a NaN */
-		return (cpackl(a, t));	/* return NaN + NaN i */
+		return (CMPLXL(a, t));	/* return NaN + NaN i */
 	}
 	if (isinf(a)) {
 		/*
@@ -73,9 +73,9 @@ csqrtl(long double complex z)
 		 * csqrt(-inf + y i)   = 0   +  inf i
 		 */
 		if (signbit(a))
-			return (cpackl(fabsl(b - b), copysignl(a, b)));
+			return (CMPLXL(fabsl(b - b), copysignl(a, b)));
 		else
-			return (cpackl(a, copysignl(b - b, b)));
+			return (CMPLXL(a, copysignl(b - b, b)));
 	}
 	/*
 	 * The remaining special case (b is NaN) is handled just fine by
@@ -94,10 +94,10 @@ csqrtl(long double complex z)
 	/* Algorithm 312, CACM vol 10, Oct 1967. */
 	if (a >= 0) {
 		t = sqrtl((a + hypotl(a, b)) * 0.5);
-		result = cpackl(t, b / (2 * t));
+		result = CMPLXL(t, b / (2 * t));
 	} else {
 		t = sqrtl((-a + hypotl(a, b)) * 0.5);
-		result = cpackl(fabsl(b) / (2 * t), copysignl(t, b));
+		result = CMPLXL(fabsl(b) / (2 * t), copysignl(t, b));
 	}
 
 	/* Rescale. */
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ctanh.c b/libm/upstream-freebsd/lib/msun/src/s_ctanh.c
index d427e28..e5973c3 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ctanh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ctanh.c
@@ -25,7 +25,7 @@
  */
 
 /*
- * Hyperbolic tangent of a complex argument z = x + i y.
+ * Hyperbolic tangent of a complex argument z = x + I y.
  *
  * The algorithm is from:
  *
@@ -44,15 +44,15 @@
  *
  *   tanh(z) = sinh(z) / cosh(z)
  *
- *             sinh(x) cos(y) + i cosh(x) sin(y)
+ *             sinh(x) cos(y) + I cosh(x) sin(y)
  *           = ---------------------------------
- *             cosh(x) cos(y) + i sinh(x) sin(y)
+ *             cosh(x) cos(y) + I sinh(x) sin(y)
  *
- *             cosh(x) sinh(x) / cos^2(y) + i tan(y)
+ *             cosh(x) sinh(x) / cos^2(y) + I tan(y)
  *           = -------------------------------------
  *                    1 + sinh^2(x) / cos^2(y)
  *
- *             beta rho s + i t
+ *             beta rho s + I t
  *           = ----------------
  *               1 + beta s^2
  *
@@ -64,7 +64,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_ctanh.c 284427 2015-06-15 20:40:44Z tijl $");
 
 #include <complex.h>
 #include <math.h>
@@ -85,16 +85,16 @@ ctanh(double complex z)
 	ix = hx & 0x7fffffff;
 
 	/*
-	 * ctanh(NaN + i 0) = NaN + i 0
+	 * ctanh(NaN +- I 0) = d(NaN) +- I 0
 	 *
-	 * ctanh(NaN + i y) = NaN + i NaN		for y != 0
+	 * ctanh(NaN + I y) = d(NaN,y) + I d(NaN,y)	for y != 0
 	 *
 	 * The imaginary part has the sign of x*sin(2*y), but there's no
 	 * special effort to get this right.
 	 *
-	 * ctanh(+-Inf +- i Inf) = +-1 +- 0
+	 * ctanh(+-Inf +- I Inf) = +-1 +- I 0
 	 *
-	 * ctanh(+-Inf + i y) = +-1 + 0 sin(2y)		for y finite
+	 * ctanh(+-Inf + I y) = +-1 + I 0 sin(2y)	for y finite
 	 *
 	 * The imaginary part of the sign is unspecified.  This special
 	 * case is only needed to avoid a spurious invalid exception when
@@ -102,26 +102,27 @@ ctanh(double complex z)
 	 */
 	if (ix >= 0x7ff00000) {
 		if ((ix & 0xfffff) | lx)	/* x is NaN */
-			return (cpack(x, (y == 0 ? y : x * y)));
+			return (CMPLX((x + 0) * (y + 0),
+			    y == 0 ? y : (x + 0) * (y + 0)));
 		SET_HIGH_WORD(x, hx - 0x40000000);	/* x = copysign(1, x) */
-		return (cpack(x, copysign(0, isinf(y) ? y : sin(y) * cos(y))));
+		return (CMPLX(x, copysign(0, isinf(y) ? y : sin(y) * cos(y))));
 	}
 
 	/*
-	 * ctanh(x + i NAN) = NaN + i NaN
-	 * ctanh(x +- i Inf) = NaN + i NaN
+	 * ctanh(x + I NaN) = d(NaN) + I d(NaN)
+	 * ctanh(x +- I Inf) = dNaN + I dNaN
 	 */
 	if (!isfinite(y))
-		return (cpack(y - y, y - y));
+		return (CMPLX(y - y, y - y));
 
 	/*
-	 * ctanh(+-huge + i +-y) ~= +-1 +- i 2sin(2y)/exp(2x), using the
+	 * ctanh(+-huge +- I y) ~= +-1 +- I 2sin(2y)/exp(2x), using the
 	 * approximation sinh^2(huge) ~= exp(2*huge) / 4.
 	 * We use a modified formula to avoid spurious overflow.
 	 */
-	if (ix >= 0x40360000) {	/* x >= 22 */
+	if (ix >= 0x40360000) {	/* |x| >= 22 */
 		double exp_mx = exp(-fabs(x));
-		return (cpack(copysign(1, x),
+		return (CMPLX(copysign(1, x),
 		    4 * sin(y) * cos(y) * exp_mx * exp_mx));
 	}
 
@@ -131,14 +132,14 @@ ctanh(double complex z)
 	s = sinh(x);
 	rho = sqrt(1 + s * s);	/* = cosh(x) */
 	denom = 1 + beta * s * s;
-	return (cpack((beta * rho * s) / denom, t / denom));
+	return (CMPLX((beta * rho * s) / denom, t / denom));
 }
 
 double complex
 ctan(double complex z)
 {
 
-	/* ctan(z) = -I * ctanh(I * z) */
-	z = ctanh(cpack(-cimag(z), creal(z)));
-	return (cpack(cimag(z), -creal(z)));
+	/* ctan(z) = -I * ctanh(I * z) = I * conj(ctanh(I * conj(z))) */
+	z = ctanh(CMPLX(cimag(z), creal(z)));
+	return (CMPLX(cimag(z), creal(z)));
 }
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c b/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c
index 4be28d8..e9826c0 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_ctanhf.c 284428 2015-06-15 20:47:26Z tijl $");
 
 #include <complex.h>
 #include <math.h>
@@ -51,18 +51,19 @@ ctanhf(float complex z)
 
 	if (ix >= 0x7f800000) {
 		if (ix & 0x7fffff)
-			return (cpackf(x, (y == 0 ? y : x * y)));
+			return (CMPLXF((x + 0) * (y + 0),
+			    y == 0 ? y : (x + 0) * (y + 0)));
 		SET_FLOAT_WORD(x, hx - 0x40000000);
-		return (cpackf(x,
+		return (CMPLXF(x,
 		    copysignf(0, isinf(y) ? y : sinf(y) * cosf(y))));
 	}
 
 	if (!isfinite(y))
-		return (cpackf(y - y, y - y));
+		return (CMPLXF(y - y, y - y));
 
-	if (ix >= 0x41300000) {	/* x >= 11 */
+	if (ix >= 0x41300000) {	/* |x| >= 11 */
 		float exp_mx = expf(-fabsf(x));
-		return (cpackf(copysignf(1, x),
+		return (CMPLXF(copysignf(1, x),
 		    4 * sinf(y) * cosf(y) * exp_mx * exp_mx));
 	}
 
@@ -71,14 +72,14 @@ ctanhf(float complex z)
 	s = sinhf(x);
 	rho = sqrtf(1 + s * s);
 	denom = 1 + beta * s * s;
-	return (cpackf((beta * rho * s) / denom, t / denom));
+	return (CMPLXF((beta * rho * s) / denom, t / denom));
 }
 
 float complex
 ctanf(float complex z)
 {
 
-	z = ctanhf(cpackf(-cimagf(z), crealf(z)));
-	return (cpackf(cimagf(z), -crealf(z)));
+	z = ctanhf(CMPLXF(cimagf(z), crealf(z)));
+	return (CMPLXF(cimagf(z), crealf(z)));
 }
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_exp2.c b/libm/upstream-freebsd/lib/msun/src/s_exp2.c
index fde11c2..dbef729 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_exp2.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_exp2.c
@@ -25,7 +25,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_exp2.c 286515 2015-08-09 10:00:13Z dim $");
 
 #include <float.h>
 
@@ -376,14 +376,14 @@ exp2(double x)
 	/* Compute r = exp2(y) = exp2t[i0] * p(z - eps[i]). */
 	t = tbl[i0];		/* exp2t[i0] */
 	z -= tbl[i0 + 1];	/* eps[i0]   */
-	if (k >= -1021 << 20)
+	if (k >= -(1021 << 20))
 		INSERT_WORDS(twopk, 0x3ff00000 + k, 0);
 	else
 		INSERT_WORDS(twopkp1000, 0x3ff00000 + k + (1000 << 20), 0);
 	r = t + t * z * (P1 + z * (P2 + z * (P3 + z * (P4 + z * P5))));
 
 	/* Scale by 2**(k>>20). */
-	if(k >= -1021 << 20) {
+	if(k >= -(1021 << 20)) {
 		if (k == 1024 << 20)
 			return (r * 2.0 * 0x1p1023);
 		return (r * twopk);
diff --git a/libm/upstream-freebsd/lib/msun/src/s_scalbln.c b/libm/upstream-freebsd/lib/msun/src/s_scalbln.c
index d609d4e..8e61377 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_scalbln.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_scalbln.c
@@ -25,52 +25,30 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: head/lib/msun/src/s_scalbln.c 278339 2015-02-07 00:38:18Z kargl $");
 
-#include <limits.h>
 #include <math.h>
 
+#define	NMAX	65536
+#define	NMIN	-65536
+
 double
-scalbln (double x, long n)
+scalbln(double x, long n)
 {
-	int in;
 
-	in = (int)n;
-	if (in != n) {
-		if (n > 0)
-			in = INT_MAX;
-		else
-			in = INT_MIN;
-	}
-	return (scalbn(x, in));
+	return (scalbn(x, (n > NMAX) ? NMAX : (n < NMIN) ? NMIN : (int)n));
 }
 
 float
-scalblnf (float x, long n)
+scalblnf(float x, long n)
 {
-	int in;
 
-	in = (int)n;
-	if (in != n) {
-		if (n > 0)
-			in = INT_MAX;
-		else
-			in = INT_MIN;
-	}
-	return (scalbnf(x, in));
+	return (scalbnf(x, (n > NMAX) ? NMAX : (n < NMIN) ? NMIN : (int)n));
 }
 
 long double
-scalblnl (long double x, long n)
+scalblnl(long double x, long n)
 {
-	int in;
 
-	in = (int)n;
-	if (in != n) {
-		if (n > 0)
-			in = INT_MAX;
-		else
-			in = INT_MIN;
-	}
-	return (scalbnl(x, (int)n));
+	return (scalbnl(x, (n > NMAX) ? NMAX : (n < NMIN) ? NMIN : (int)n));
 }