Add SIMD.Float32x4 functions.

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index c675fe7e0d423211669c505a2f1a7a4169a9aa31..86e016583d1cc1887c3d12142fb964c4fc8d31da 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1273,6 +1273,14 @@ void Genesis::InitializeGlobal(Handle<GlobalObject> global_object,
   InstallFunction(global, "WeakSet", JS_WEAK_SET_TYPE, JSWeakSet::kSize,
                   isolate->initial_object_prototype(), Builtins::kIllegal);
 
+  {
+    // -- F l o a t 3 2 x 4
+    Handle<JSFunction> float32x4_function = InstallFunction(
+        global, "Float32x4", JS_VALUE_TYPE, JSValue::kSize,
+        isolate->initial_object_prototype(), Builtins::kIllegal);
+    native_context()->set_float32x4_function(*float32x4_function);
+  }
+
   {  // --- sloppy arguments map
     // Make sure we can recognize argument objects at runtime.
     // This is done by introducing an anonymous function with
@@ -1769,6 +1777,7 @@ EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_spread_arrays)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_sharedarraybuffer)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_atomics)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_new_target)
+EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_simd)
 
 
 void Genesis::InstallNativeFunctions_harmony_proxies() {
@@ -1803,6 +1812,7 @@ EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_object)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_spread_arrays)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_atomics)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_new_target)
+EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_simd)
 
 void Genesis::InitializeGlobal_harmony_regexps() {
   Handle<JSObject> builtins(native_context()->builtins());
@@ -2450,6 +2460,8 @@ bool Genesis::InstallExperimentalNatives() {
   static const char* harmony_atomics_natives[] = {"native harmony-atomics.js",
                                                   nullptr};
   static const char* harmony_new_target_natives[] = {nullptr};
+  static const char* harmony_simd_natives[] = {"native harmony-simd.js",
+                                               nullptr};
 
   for (int i = ExperimentalNatives::GetDebuggerCount();
        i < ExperimentalNatives::GetBuiltinsCount(); i++) {