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-rw-r--r--js/src/jit-test/tests/ion/getprop-idempotent-cache-1.js17
1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/getprop-idempotent-cache-1.js b/js/src/jit-test/tests/ion/getprop-idempotent-cache-1.js
new file mode 100644
index 000000000..bddde433f
--- /dev/null
+++ b/js/src/jit-test/tests/ion/getprop-idempotent-cache-1.js
@@ -0,0 +1,17 @@
+function f(o) {
+ var res = 0;
+ for (var i=0; i<11000; i++) {
+ res += o.x;
+ }
+ return res;
+}
+
+function O(x) {
+ if (x)
+ this.x = 10;
+}
+
+f(new O(true));
+
+// "o.x" is now missing so the idempotent cache should invalidate f.
+f(new O(false));