Experimental implementation: Exposing SIMD instructions into JavaScript

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index a15edf2df4caf4c6550180170c3d178ae7c93edc..812edd71da53b26ad8496dbb2aebbc99bfd27fab 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -1469,6 +1469,18 @@ class V8_EXPORT Value : public Data {
   bool IsFloat32Array() const;
 
   /**
+   * Returns true if this value is a Float32x4Array.
+   * This is an experimental feature.
+   */
+  bool IsFloat32x4Array() const;
+
+  /**
+   * Returns true if this value is a Int32x4Array.
+   * This is an experimental feature.
+   */
+  bool IsInt32x4Array() const;
+
+  /**
    * Returns true if this value is a Float64Array.
    * This is an experimental feature.
    */
@@ -2048,6 +2060,8 @@ enum ExternalArrayType {
   kExternalIntArray,
   kExternalUnsignedIntArray,
   kExternalFloatArray,
+  kExternalFloat32x4Array,
+  kExternalInt32x4Array,
   kExternalDoubleArray,
   kExternalPixelArray
 };
@@ -2886,6 +2900,30 @@ class V8_EXPORT Float32Array : public TypedArray {
 };
 
 
+class V8_EXPORT Float32x4Array : public TypedArray {
+ public:
+  static Local<Float32x4Array> New(Handle<ArrayBuffer> array_buffer,
+                                   size_t byte_offset, size_t length);
+  V8_INLINE static Float32x4Array* Cast(Value* obj);
+
+ private:
+  Float32x4Array();
+  static void CheckCast(Value* obj);
+};
+
+
+class V8_EXPORT Int32x4Array : public TypedArray {
+ public:
+  static Local<Int32x4Array> New(Handle<ArrayBuffer> array_buffer,
+                                 size_t byte_offset, size_t length);
+  V8_INLINE static Int32x4Array* Cast(Value* obj);
+
+ private:
+  Int32x4Array();
+  static void CheckCast(Value* obj);
+};
+
+
 /**
  * An instance of Float64Array constructor (ES6 draft 15.13.6).
  * This API is experimental and may change significantly.
@@ -5522,7 +5560,7 @@ class Internals {
   static const int kJSObjectHeaderSize = 3 * kApiPointerSize;
   static const int kFixedArrayHeaderSize = 2 * kApiPointerSize;
   static const int kContextHeaderSize = 2 * kApiPointerSize;
-  static const int kContextEmbedderDataIndex = 65;
+  static const int kContextEmbedderDataIndex = 71;
   static const int kFullStringRepresentationMask = 0x07;
   static const int kStringEncodingMask = 0x4;
   static const int kExternalTwoByteRepresentationTag = 0x02;
@@ -5534,7 +5572,7 @@ class Internals {
   static const int kNullValueRootIndex = 7;
   static const int kTrueValueRootIndex = 8;
   static const int kFalseValueRootIndex = 9;
-  static const int kEmptyStringRootIndex = 134;
+  static const int kEmptyStringRootIndex = 140;
 
   static const int kNodeClassIdOffset = 1 * kApiPointerSize;
   static const int kNodeFlagsOffset = 1 * kApiPointerSize + 3;
@@ -5545,10 +5583,10 @@ class Internals {
   static const int kNodeIsIndependentShift = 4;
   static const int kNodeIsPartiallyDependentShift = 5;
 
-  static const int kJSObjectType = 0xb2;
+  static const int kJSObjectType = 0xb6;
   static const int kFirstNonstringType = 0x80;
   static const int kOddballType = 0x83;
-  static const int kForeignType = 0x87;
+  static const int kForeignType = 0x89;
 
   static const int kUndefinedOddballKind = 5;
   static const int kNullOddballKind = 3;
@@ -6455,6 +6493,22 @@ Float32Array* Float32Array::Cast(v8::Value* value) {
 }
 
 
+Float32x4Array* Float32x4Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Float32x4Array*>(value);
+}
+
+
+Int32x4Array* Int32x4Array::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<Int32x4Array*>(value);
+}
+
+
 Float64Array* Float64Array::Cast(v8::Value* value) {
 #ifdef V8_ENABLE_CHECKS
   CheckCast(value);