Add new benchmark for emscripten::val handling.

2 files changed, 21 insertions, 0 deletions

diff --git a/tests/embind/embind.benchmark.js b/tests/embind/embind.benchmark.js
index a21b8392..3669bc28 100644
--- a/tests/embind/embind.benchmark.js
+++ b/tests/embind/embind.benchmark.js
@@ -272,3 +272,14 @@ function _call_through_interface2() {
     Module.print("C++ -> JS memory_view instantiation" + N + " iters: " + elapsed + " msecs.");
     obj.delete();
 }
+
+function _returns_val_benchmark() {
+    var N = 1000000;
+    var v = 1;
+    var start = _emscripten_get_now();
+    for(var i = 0; i < N; ++i) {
+        v = Module['returns_val'](v);
+    }
+    var elapsed = _emscripten_get_now() - start;
+    Module.print("returns_val " + N + " iters: " + elapsed + " msecs");
+}
diff --git a/tests/embind/embind_benchmark.cpp b/tests/embind/embind_benchmark.cpp
index d6aa950f..5ae9a6be 100644
--- a/tests/embind/embind_benchmark.cpp
+++ b/tests/embind/embind_benchmark.cpp
@@ -51,6 +51,13 @@ extern void pass_gameobject_ptr_benchmark_embind_js();
 extern void call_through_interface0();
 extern void call_through_interface1();
 extern void call_through_interface2();
+
+extern void returns_val_benchmark();
+}
+
+emscripten::val returns_val(emscripten::val value)
+{
+    return emscripten::val(value.as<unsigned>() + 1);
 }
 
 class Vec3
@@ -281,6 +288,8 @@ EMSCRIPTEN_BINDINGS(benchmark)
     function("callInterface1", &callInterface1);
     function("callInterface2", &callInterface2);
     function("callInterface3", &callInterface3);
+
+    function("returns_val", &returns_val);
 }
 
 void __attribute__((noinline)) emscripten_get_now_benchmark(int N)
@@ -492,4 +501,5 @@ int main()
     call_through_interface0();
     call_through_interface1();
     call_through_interface2();
+    returns_val_benchmark();
 }