1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/xdr/relazify.js b/js/src/jit-test/tests/xdr/relazify.js
new file mode 100644
index 0000000000..f867071d88
--- /dev/null
+++ b/js/src/jit-test/tests/xdr/relazify.js
@@ -0,0 +1,31 @@
+// |jit-test| skip-if: isLcovEnabled()
+
+load(libdir + 'bytecode-cache.js');
+var test = "";
+gczeal(0);
+
+// Check that a GC can relazify decoded functions.
+//
+// Generations 0 and 3 are executed from the source, thus f is not executed yet.
+// Generations 1 and 2 are decoded, thus we recorded the delazified f function.
+test = `
+  function f() { return 1; };
+  assertEq(isLazyFunction(f), generation == 0 || generation == 3);
+  f();
+  expect = isRelazifiableFunction(f);
+  assertEq(isLazyFunction(f), false);
+`;
+evalWithCache(test, {
+  checkAfter: function (ctx) {
+    relazifyFunctions(); // relazify f, if possible.
+    evaluate("assertEq(isLazyFunction(f), expect);", ctx);
+  }
+});
+
+evalWithCache(test, {
+  incremental: true,
+  checkAfter: function (ctx) {
+    relazifyFunctions(); // relazify f, if possible.
+    evaluate("assertEq(isLazyFunction(f), expect);", ctx);
+  }
+});