1 files changed, 19 insertions, 0 deletions
diff --git a/tests/template/t6217.nim b/tests/template/t6217.nim
new file mode 100644
index 000000000..b27b61881
--- /dev/null
+++ b/tests/template/t6217.nim
@@ -0,0 +1,19 @@
+discard """
+  output: '''
+start
+side effect!
+end
+'''
+"""
+
+# bug #6217
+
+template optMul{`*`(a, 2)}(a: int{noSideEffect}): int = a+a
+
+proc f(): int =
+  echo "side effect!"
+  result = 55
+
+echo "start"
+doAssert f() * 2 == 110
+echo "end"