1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/jaeger/inline/mathRound.js b/js/src/jit-test/tests/jaeger/inline/mathRound.js
new file mode 100644
index 0000000000..60a59e2020
--- /dev/null
+++ b/js/src/jit-test/tests/jaeger/inline/mathRound.js
@@ -0,0 +1,41 @@
+
+assertEq(Math.round(3.14), 3);
+assertEq(Math.round(0.5), 1);
+assertEq(Math.round(-0), -0);
+assertEq(Math.round(0), 0);
+assertEq(Math.round(-1.03), -1);
+assertEq(Math.round(2147483649), 2147483649);
+assertEq(Math.round(2147483647.5), 2147483648);
+assertEq(Math.floor(2147483647.1), 2147483647);
+
+/* Inferred as round(double). */
+function round1(x) {
+    return Math.round(x);
+}
+assertEq(round1(10.3), 10);
+assertEq(round1(-3.14), -3);
+assertEq(round1(-3.5), -3);
+assertEq(round1(-3.6), -4);
+assertEq(round1(3.5), 4);
+assertEq(round1(3.6), 4);
+assertEq(round1(0), 0);
+assertEq(round1(-0), -0); // recompile to return double
+assertEq(round1(12345), 12345);
+assertEq(round1(654.6), 655);
+
+/* Inferred as round(double). */
+function round2(x) {
+    return Math.round(x);
+}
+assertEq(round2(1234.5), 1235);
+assertEq(round2(NaN), NaN); // recompile to return double
+assertEq(round2(4.6), 5);
+
+/* Inferred as round(int). */
+function round3(x) {
+    return Math.round(x);
+}
+assertEq(round3(4), 4);
+assertEq(round3(-5), -5);
+assertEq(round3(0), 0);
+