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-rw-r--r--js/src/jit-test/tests/gc/bug-1779833.js20
1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1779833.js b/js/src/jit-test/tests/gc/bug-1779833.js
new file mode 100644
index 0000000000..7b2f132046
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1779833.js
@@ -0,0 +1,20 @@
+// This failed when run under ASAN.
+
+let size = 6;
+
+let map = new Map();
+assertEq(isNurseryAllocated(map), true);
+for (let i = 0; i < size; i++) {
+ map.set(i, {});
+}
+
+for (let i = 0; i < size - 1; i++) {
+ map.delete(i);
+}
+
+for (let i = 0; i < size - 1; i++) {
+ map.set(i, {});
+}
+
+map = undefined;
+minorgc();