1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/bug1745949.js b/js/src/jit-test/tests/warp/bug1745949.js
new file mode 100644
index 0000000000..0047afe7c5
--- /dev/null
+++ b/js/src/jit-test/tests/warp/bug1745949.js
@@ -0,0 +1,11 @@
+function foo() {
+    let v;
+    let i = -2000;
+    do {
+	v = i * -1;
+	v += v;
+	i++;
+    } while (i < 1);
+    return Object.is(v, -0);
+}
+assertEq(foo(), true);