1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1374797.js b/js/src/jit-test/tests/gc/bug-1374797.js
new file mode 100644
index 0000000000..13ec7f061d
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1374797.js
@@ -0,0 +1,26 @@
+// |jit-test| skip-if: helperThreadCount() === 0
+
+// Exercise triggering GC of atoms zone while off-thread parsing is happening.
+
+gczeal(0);
+
+// Reduce some GC parameters so that we can trigger a GC more easily.
+gcparam('lowFrequencyHeapGrowth', 120);
+gcparam('highFrequencyLargeHeapGrowth', 120);
+gcparam('highFrequencySmallHeapGrowth', 120);
+gcparam('allocationThreshold', 1);
+gc();
+
+// Start an off-thread parse.
+offThreadCompileScript("print('Finished')");
+
+// Allocate lots of atoms, parsing occasionally.
+for (let i = 0; i < 10; i++) {
+    print(i);
+    for (let j = 0; j < 10000; j++)
+        Symbol.for(i + 10 * j);
+    eval(`${i}`);
+}
+
+// Finish the off-thread parse.
+runOffThreadScript();