1 files changed, 40 insertions, 0 deletions
diff --git a/test/binaryen.js/low-memory-unused.js b/test/binaryen.js/low-memory-unused.js
new file mode 100644
index 000000000..37bdc2cb0
--- /dev/null
+++ b/test/binaryen.js/low-memory-unused.js
@@ -0,0 +1,40 @@
+var wast = `
+(module
+ (memory $0 1)
+ (export "test" (func $test))
+ (func $test (param $0 i32) (result i32)
+  (i32.load
+    (i32.add
+      (local.get $0)
+      (i32.const 128)
+    )
+  )
+ )
+)
+`;
+
+console.log("=== input wast ===" + wast);
+
+var module = binaryen.parseText(wast);
+
+console.log("=== unoptimized ===");
+assert(module.validate());
+console.log(module.emitText());
+
+console.log("=== optimized, lowMemoryUnused=" + binaryen.getLowMemoryUnused() + " ===");
+module.optimize();
+assert(module.validate());
+console.log(module.emitText());
+
+binaryen.setAPITracing(true);
+binaryen.setLowMemoryUnused(true);
+assert(binaryen.getLowMemoryUnused());
+binaryen.setAPITracing(false);
+console.log();
+
+console.log("=== optimized, lowMemoryUnused=" + binaryen.getLowMemoryUnused() + " ===");
+module.optimize();
+assert(module.validate());
+console.log(module.emitText());
+
+module.dispose();