1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1866502.js b/js/src/jit-test/tests/ion/bug1866502.js
new file mode 100644
index 0000000000..25739cf8b2
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1866502.js
@@ -0,0 +1,32 @@
+// |jit-test| --ion-offthread-compile=off 
+// |jit-test| --fast-warmup 
+
+this.__defineSetter__('sum', () => {})
+sum=0;
+
+options = {fileName: "test.js"}
+evaluate("\
+  function inline1(i)  { return i+0; }\
+  function inline2(i)  { return i+1; }\
+  function inline3(z,i){ return i+5; }\
+  function a() {\
+    for (let i=0; i<2000; i++) {\
+      sum=inline1(i);\
+      sum=inline2(i);\
+      sum=inline3(sum,i);\
+    }\
+  }\
+", options);
+a();
+
+evaluate("\
+  function inline4(i)  { return i+0; }\
+  function inline5(i)  { return i+1; }\
+  function inline6(z,i){ return i+5; }\
+  function b() {\
+    for (let i=0; i<2000; i++) {\
+      sum=sum+i;\
+    }\
+  }\
+", options);
+b();