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-rw-r--r--js/src/jit-test/tests/ion/bug946284.js5
1 files changed, 5 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug946284.js b/js/src/jit-test/tests/ion/bug946284.js
new file mode 100644
index 000000000..58bb8a37b
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug946284.js
@@ -0,0 +1,5 @@
+function f(x) {
+ return x.length / 2
+}
+f("")
+assertEq(f(undefined + ""), 4.5);