Merge from trunk revision 104c05c5284b7822d770ee51a7d91946c7e56d50.

1 files changed, 6 insertions, 4 deletions

diff --git a/libgo/go/math/exp.go b/libgo/go/math/exp.go
index f3d3cb6..7ab80b4 100644
--- a/libgo/go/math/exp.go
+++ b/libgo/go/math/exp.go
@@ -11,14 +11,13 @@ package math
 //	Exp(NaN) = NaN
 // Very large values overflow to 0 or +Inf.
 // Very small values underflow to 1.
-
-//extern exp
-func libc_exp(float64) float64
-
 func Exp(x float64) float64 {
 	return libc_exp(x)
 }
 
+//extern exp
+func libc_exp(float64) float64
+
 // The original C code, the long comment, and the constants
 // below are from FreeBSD's /usr/src/lib/msun/src/e_exp.c
 // and came with this notice. The go code is a simplified
@@ -139,6 +138,9 @@ func exp(x float64) float64 {
 //
 // Special cases are the same as Exp.
 func Exp2(x float64) float64 {
+	if haveArchExp2 {
+		return archExp2(x)
+	}
 	return exp2(x)
 }