1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/bug1719884.js b/js/src/jit-test/tests/warp/bug1719884.js
new file mode 100644
index 0000000000..cfcdbd8a2e
--- /dev/null
+++ b/js/src/jit-test/tests/warp/bug1719884.js
@@ -0,0 +1,19 @@
+// |jit-test| --fast-warmup; --no-threads
+
+var always_true = true;
+var unused = 3;
+
+function foo(input, trigger) {
+  if (trigger) {
+    return Math.atan2(always_true ? Math.trunc(input ** -0x80000001)
+                                  : unused,
+                      +input);
+  }
+}
+
+with ({}) {}
+for (var i = 0; i < 100; i++) {
+    foo(1, i == 15);
+}
+
+assertEq(foo(-Infinity, true), -Math.PI);