Recursive inlining tests

pos/power inlines with alomst no extraneous boilerplate.
neg/power gives an error that maximal numbers of inlines was exceeded.

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/run/power.scala b/tests/run/power.scala
new file mode 100644
index 000000000..2bb66fa8d
--- /dev/null
+++ b/tests/run/power.scala
@@ -0,0 +1,17 @@
+object Test {
+
+  @dotty.annotation.inline
+  def power(x: Double, n: Int): Double =
+    if (n == 0) 1.0
+    else if (n == 1) x
+    else {
+      val y = power(x, n / 2)
+      if (n % 2 == 0) y * y else y * y * x
+    }
+
+  def main(args: Array[String]): Unit = {
+    println(power(2.0, 10))
+    def x = 2.0
+    println(power(x, 11))
+  }
+}