Add SIMD.Float32x4 functions.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 7c29a344f1faa45140d865afe047c905fb742590..a1c024c8d1c172f9959032ffd09e5a5626649c66 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -2741,6 +2741,11 @@ bool Value::IsDataView() const {
 }
 
 
+bool Value::IsFloat32x4() const {
+  return Utils::OpenHandle(this)->IsFloat32x4();
+}
+
+
 bool Value::IsSharedArrayBuffer() const {
   i::Handle<i::Object> obj = Utils::OpenHandle(this);
   return obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared();
@@ -3099,6 +3104,13 @@ void v8::Uint32::CheckCast(v8::Value* that) {
 }
 
 
+void v8::Float32x4::CheckCast(v8::Value* that) {
+  i::Handle<i::Object> obj = Utils::OpenHandle(that);
+  Utils::ApiCheck(obj->IsFloat32x4(), "v8::Float32x4::Cast()",
+                  "Could not convert to float32x4");
+}
+
+
 void v8::Array::CheckCast(Value* that) {
   i::Handle<i::Object> obj = Utils::OpenHandle(that);
   Utils::ApiCheck(obj->IsJSArray(),
@@ -6782,6 +6794,17 @@ Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate,
 }
 
 
+Local<Float32x4> v8::Float32x4::New(Isolate* isolate, float w, float x, float y,
+                                    float z) {
+  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
+  LOG_API(i_isolate, "Float32x4::New()");
+  ENTER_V8(i_isolate);
+  i::Handle<i::Float32x4> result =
+      i_isolate->factory()->NewFloat32x4(w, x, y, z);
+  return Utils::ToLocal(result);
+}
+
+
 Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(
     Isolate* isolate, void* data, size_t byte_length,
     ArrayBufferCreationMode mode) {