Experimental implementation: Exposing SIMD instructions into JavaScript

src/elements.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 38 matching lines @@
 //       - FastPackedDoubleElementsAccessor
 //       - FastHoleyDoubleElementsAccessor
 //   - ExternalElementsAccessor                  (abstract)
 //     - ExternalByteElementsAccessor
 //     - ExternalUnsignedByteElementsAccessor
 //     - ExternalShortElementsAccessor
 //     - ExternalUnsignedShortElementsAccessor
 //     - ExternalIntElementsAccessor
 //     - ExternalUnsignedIntElementsAccessor
 //     - ExternalFloatElementsAccessor
+//     - ExternalFloat32x4ElementsAccessor
 //     - ExternalDoubleElementsAccessor
 //     - PixelElementsAccessor
 //   - DictionaryElementsAccessor
 //   - NonStrictArgumentsElementsAccessor
 
 
 namespace v8 {
 namespace internal {
 
 
@@ skipping 26 matching lines @@
   V(ExternalShortElementsAccessor, EXTERNAL_SHORT_ELEMENTS,             \
     ExternalShortArray)                                                 \
   V(ExternalUnsignedShortElementsAccessor,                              \
     EXTERNAL_UNSIGNED_SHORT_ELEMENTS, ExternalUnsignedShortArray)       \
   V(ExternalIntElementsAccessor, EXTERNAL_INT_ELEMENTS,                 \
     ExternalIntArray)                                                   \
   V(ExternalUnsignedIntElementsAccessor,                                \
     EXTERNAL_UNSIGNED_INT_ELEMENTS, ExternalUnsignedIntArray)           \
   V(ExternalFloatElementsAccessor,                                      \
     EXTERNAL_FLOAT_ELEMENTS, ExternalFloatArray)                        \
+  V(ExternalFloat32x4ElementsAccessor,                                  \
+    EXTERNAL_FLOAT32x4_ELEMENTS, ExternalFloat32x4Array)                \
+  V(ExternalInt32x4ElementsAccessor,                                    \
+    EXTERNAL_INT32x4_ELEMENTS, ExternalInt32x4Array)                    \
   V(ExternalDoubleElementsAccessor,                                     \
     EXTERNAL_DOUBLE_ELEMENTS, ExternalDoubleArray)                      \
   V(PixelElementsAccessor, EXTERNAL_PIXEL_ELEMENTS, ExternalPixelArray)
 
 
 template<ElementsKind Kind> class ElementsKindTraits {
  public:
   typedef FixedArrayBase BackingStore;
 };
 
@@ skipping 970 matching lines @@
     case EXTERNAL_SHORT_ARRAY_TYPE:
       return EXTERNAL_SHORT_ELEMENTS;
     case EXTERNAL_UNSIGNED_SHORT_ARRAY_TYPE:
       return EXTERNAL_UNSIGNED_SHORT_ELEMENTS;
     case EXTERNAL_INT_ARRAY_TYPE:
       return EXTERNAL_INT_ELEMENTS;
     case EXTERNAL_UNSIGNED_INT_ARRAY_TYPE:
       return EXTERNAL_UNSIGNED_INT_ELEMENTS;
     case EXTERNAL_FLOAT_ARRAY_TYPE:
       return EXTERNAL_FLOAT_ELEMENTS;
+    case EXTERNAL_FLOAT32x4_ARRAY_TYPE:
+      return EXTERNAL_FLOAT32x4_ELEMENTS;
+    case EXTERNAL_INT32x4_ARRAY_TYPE:
+      return EXTERNAL_INT32x4_ELEMENTS;
     case EXTERNAL_DOUBLE_ARRAY_TYPE:
       return EXTERNAL_DOUBLE_ELEMENTS;
     case EXTERNAL_PIXEL_ARRAY_TYPE:
       return EXTERNAL_PIXEL_ELEMENTS;
     default:
       UNREACHABLE();
   }
   return FAST_HOLEY_ELEMENTS;
 }
 
@@ skipping 44 matching lines @@
         return CopyElementsImpl(arguments, from_start, to, from_kind,
                                 to_start, packed_size, copy_size);
       }
       case EXTERNAL_BYTE_ELEMENTS:
       case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
       case EXTERNAL_SHORT_ELEMENTS:
       case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
       case EXTERNAL_INT_ELEMENTS:
       case EXTERNAL_UNSIGNED_INT_ELEMENTS:
       case EXTERNAL_FLOAT_ELEMENTS:
+      case EXTERNAL_FLOAT32x4_ELEMENTS:
+      case EXTERNAL_INT32x4_ELEMENTS:
       case EXTERNAL_DOUBLE_ELEMENTS:
       case EXTERNAL_PIXEL_ELEMENTS:
         UNREACHABLE();
     }
     return NULL;
   }
 
 
   static MaybeObject* SetFastElementsCapacityAndLength(JSObject* obj,
                                                        uint32_t capacity,
@@ skipping 105 matching lines @@
             from, from_start, to, to_start, copy_size);
         break;
       case NON_STRICT_ARGUMENTS_ELEMENTS:
       case EXTERNAL_BYTE_ELEMENTS:
       case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
       case EXTERNAL_SHORT_ELEMENTS:
       case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
       case EXTERNAL_INT_ELEMENTS:
       case EXTERNAL_UNSIGNED_INT_ELEMENTS:
       case EXTERNAL_FLOAT_ELEMENTS:
+      case EXTERNAL_FLOAT32x4_ELEMENTS:
+      case EXTERNAL_INT32x4_ELEMENTS:
       case EXTERNAL_DOUBLE_ELEMENTS:
       case EXTERNAL_PIXEL_ELEMENTS:
         UNREACHABLE();
     }
     return to->GetHeap()->undefined_value();
   }
 };
 
 
 class FastPackedDoubleElementsAccessor
@@ skipping 161 matching lines @@
 
 class ExternalFloatElementsAccessor
     : public ExternalElementsAccessor<ExternalFloatElementsAccessor,
                                       EXTERNAL_FLOAT_ELEMENTS> {
  public:
   explicit ExternalFloatElementsAccessor(const char* name)
       : ExternalElementsAccessor<ExternalFloatElementsAccessor,
                                  EXTERNAL_FLOAT_ELEMENTS>(name) {}
 };
 
+class ExternalFloat32x4ElementsAccessor
+    : public ExternalElementsAccessor<ExternalFloat32x4ElementsAccessor,
+                                      EXTERNAL_FLOAT32x4_ELEMENTS> {
+ public:
+  explicit ExternalFloat32x4ElementsAccessor(const char* name)
+      : ExternalElementsAccessor<ExternalFloat32x4ElementsAccessor,
+                                 EXTERNAL_FLOAT32x4_ELEMENTS>(name) {}
+};
+
+
+class ExternalInt32x4ElementsAccessor
+    : public ExternalElementsAccessor<ExternalInt32x4ElementsAccessor,
+                                      EXTERNAL_INT32x4_ELEMENTS> {
+ public:
+  explicit ExternalInt32x4ElementsAccessor(const char* name)
+      : ExternalElementsAccessor<ExternalInt32x4ElementsAccessor,
+                                 EXTERNAL_INT32x4_ELEMENTS>(name) {}
+};
+
 
 class ExternalDoubleElementsAccessor
     : public ExternalElementsAccessor<ExternalDoubleElementsAccessor,
                                       EXTERNAL_DOUBLE_ELEMENTS> {
  public:
   explicit ExternalDoubleElementsAccessor(const char* name)
       : ExternalElementsAccessor<ExternalDoubleElementsAccessor,
                                  EXTERNAL_DOUBLE_ELEMENTS>(name) {}
 };
 
@@ skipping 583 matching lines @@
       UNREACHABLE();
       break;
   }
 
   array->set_elements(elms);
   array->set_length(Smi::FromInt(number_of_elements));
   return array;
 }
 
 } }  // namespace v8::internal