1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1073928.js b/js/src/jit-test/tests/ion/bug1073928.js
new file mode 100644
index 0000000000..990103d1fd
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1073928.js
@@ -0,0 +1,30 @@
+function f(y) {
+    var a = Math.fround(-0);
+    var b = ~Math.hypot(y > 0, 5);
+    assertEq(a, -0);
+    assertEq(b, -6);
+}
+f(-0);
+f(1);
+
+function g(y, z) {
+    if (z == 0) {
+        var a = Math.fround(z);
+        var b = ~Math.hypot(y > 0, 5);
+        assertEq(a, -0);
+        assertEq(b, -6);
+    }
+}
+g(-0, -0);
+g(1, -0);
+
+function h(y, z) {
+    if (z == -0) {
+        var a = Math.fround(z);
+        var b = ~Math.hypot(y > 0, 5);
+        assertEq(a, -0);
+        assertEq(b, -6);
+    }
+}
+h(-0, -0);
+h(1, -0);