1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/memory64/utility.js b/js/src/jit-test/tests/wasm/memory64/utility.js
new file mode 100644
index 0000000000..5035d66170
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/memory64/utility.js
@@ -0,0 +1,18 @@
+// Assert that we get a useful amount of memory for memory64 on tier-1 64-bit
+// systems with our primary compilers.
+
+var conf = getBuildConfiguration();
+
+// Only 64-bit systems
+if (conf["pointer-byte-size"] != 8) {
+    quit(0);
+}
+
+// MIPS64 tops out below 2GB
+if (conf["mips64"]) {
+    quit(0);
+}
+
+var eightGB = 8 * 1024 * 1024 * 1024;
+var pageSize = 65536;
+assertEq(wasmMaxMemoryPages("i64") >= eightGB / pageSize, true);