1 files changed, 18 insertions, 0 deletions
diff --git a/libgo/go/math/big/nat_test.go b/libgo/go/math/big/nat_test.go
index 7f3f76d..becde5d 100644
--- a/libgo/go/math/big/nat_test.go
+++ b/libgo/go/math/big/nat_test.go
@@ -661,3 +661,21 @@ func TestExpNN(t *testing.T) {
 		}
 	}
 }
+
+func ExpHelper(b *testing.B, x, y Word) {
+	var z nat
+	for i := 0; i < b.N; i++ {
+		z.expWW(x, y)
+	}
+}
+
+func BenchmarkExp3Power0x10(b *testing.B)     { ExpHelper(b, 3, 0x10) }
+func BenchmarkExp3Power0x40(b *testing.B)     { ExpHelper(b, 3, 0x40) }
+func BenchmarkExp3Power0x100(b *testing.B)    { ExpHelper(b, 3, 0x100) }
+func BenchmarkExp3Power0x400(b *testing.B)    { ExpHelper(b, 3, 0x400) }
+func BenchmarkExp3Power0x1000(b *testing.B)   { ExpHelper(b, 3, 0x1000) }
+func BenchmarkExp3Power0x4000(b *testing.B)   { ExpHelper(b, 3, 0x4000) }
+func BenchmarkExp3Power0x10000(b *testing.B)  { ExpHelper(b, 3, 0x10000) }
+func BenchmarkExp3Power0x40000(b *testing.B)  { ExpHelper(b, 3, 0x40000) }
+func BenchmarkExp3Power0x100000(b *testing.B) { ExpHelper(b, 3, 0x100000) }
+func BenchmarkExp3Power0x400000(b *testing.B) { ExpHelper(b, 3, 0x400000) }