Update Go library to last weekly.

From-SVN: r180552

4 files changed, 11 insertions, 11 deletions

diff --git a/libgo/go/cmath/asin.go b/libgo/go/cmath/asin.go
index d6a3ca4..01ce80a 100644
--- a/libgo/go/cmath/asin.go
+++ b/libgo/go/cmath/asin.go
@@ -50,7 +50,7 @@ import "math"
 // Asin returns the inverse sine of x.
 func Asin(x complex128) complex128 {
 	if imag(x) == 0 {
-		if math.Fabs(real(x)) > 1 {
+		if math.Abs(real(x)) > 1 {
 			return complex(math.Pi/2, 0) // DOMAIN error
 		}
 		return complex(math.Asin(real(x)), 0)
@@ -67,7 +67,7 @@ func Asin(x complex128) complex128 {
 func Asinh(x complex128) complex128 {
 	// TODO check range
 	if imag(x) == 0 {
-		if math.Fabs(real(x)) > 1 {
+		if math.Abs(real(x)) > 1 {
 			return complex(math.Pi/2, 0) // DOMAIN error
 		}
 		return complex(math.Asinh(real(x)), 0)
diff --git a/libgo/go/cmath/sin.go b/libgo/go/cmath/sin.go
index 8900ecd..486b717 100644
--- a/libgo/go/cmath/sin.go
+++ b/libgo/go/cmath/sin.go
@@ -122,7 +122,7 @@ func Cosh(x complex128) complex128 {
 
 // calculate sinh and cosh
 func sinhcosh(x float64) (sh, ch float64) {
-	if math.Fabs(x) <= 0.5 {
+	if math.Abs(x) <= 0.5 {
 		return math.Sinh(x), math.Cosh(x)
 	}
 	e := math.Exp(x)
diff --git a/libgo/go/cmath/sqrt.go b/libgo/go/cmath/sqrt.go
index e77a9b9..4e7e805 100644
--- a/libgo/go/cmath/sqrt.go
+++ b/libgo/go/cmath/sqrt.go
@@ -76,7 +76,7 @@ func Sqrt(x complex128) complex128 {
 	b := imag(x)
 	var scale float64
 	// Rescale to avoid internal overflow or underflow.
-	if math.Fabs(a) > 4 || math.Fabs(b) > 4 {
+	if math.Abs(a) > 4 || math.Abs(b) > 4 {
 		a *= 0.25
 		b *= 0.25
 		scale = 2
@@ -89,11 +89,11 @@ func Sqrt(x complex128) complex128 {
 	var t float64
 	if a > 0 {
 		t = math.Sqrt(0.5*r + 0.5*a)
-		r = scale * math.Fabs((0.5*b)/t)
+		r = scale * math.Abs((0.5*b)/t)
 		t *= scale
 	} else {
 		r = math.Sqrt(0.5*r - 0.5*a)
-		t = scale * math.Fabs((0.5*b)/r)
+		t = scale * math.Abs((0.5*b)/r)
 		r *= scale
 	}
 	if b < 0 {
diff --git a/libgo/go/cmath/tan.go b/libgo/go/cmath/tan.go
index 94b5175..67dc22a 100644
--- a/libgo/go/cmath/tan.go
+++ b/libgo/go/cmath/tan.go
@@ -58,7 +58,7 @@ import "math"
 // Tan returns the tangent of x.
 func Tan(x complex128) complex128 {
 	d := math.Cos(2*real(x)) + math.Cosh(2*imag(x))
-	if math.Fabs(d) < 0.25 {
+	if math.Abs(d) < 0.25 {
 		d = tanSeries(x)
 	}
 	if d == 0 {
@@ -109,8 +109,8 @@ func reducePi(x float64) float64 {
 // Taylor series expansion for cosh(2y) - cos(2x)
 func tanSeries(z complex128) float64 {
 	const MACHEP = 1.0 / (1 << 53)
-	x := math.Fabs(2 * real(z))
-	y := math.Fabs(2 * imag(z))
+	x := math.Abs(2 * real(z))
+	y := math.Abs(2 * imag(z))
 	x = reducePi(x)
 	x = x * x
 	y = y * y
@@ -139,7 +139,7 @@ func tanSeries(z complex128) float64 {
 		t = y2 - x2
 		t /= f
 		d += t
-		if math.Fabs(t/d) <= MACHEP {
+		if math.Abs(t/d) <= MACHEP {
 			break
 		}
 	}
@@ -174,7 +174,7 @@ func tanSeries(z complex128) float64 {
 // Cot returns the cotangent of x.
 func Cot(x complex128) complex128 {
 	d := math.Cosh(2*imag(x)) - math.Cos(2*real(x))
-	if math.Fabs(d) < 0.25 {
+	if math.Abs(d) < 0.25 {
 		d = tanSeries(x)
 	}
 	if d == 0 {