Revert of Remove SIMD.js from V8.

src/heap/heap.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
@@ skipping 117 matching lines @@
   /* Array element maps */                                                     \
   V(Map, fixed_uint8_array_map, FixedUint8ArrayMap)                            \
   V(Map, fixed_int8_array_map, FixedInt8ArrayMap)                              \
   V(Map, fixed_uint16_array_map, FixedUint16ArrayMap)                          \
   V(Map, fixed_int16_array_map, FixedInt16ArrayMap)                            \
   V(Map, fixed_uint32_array_map, FixedUint32ArrayMap)                          \
   V(Map, fixed_int32_array_map, FixedInt32ArrayMap)                            \
   V(Map, fixed_float32_array_map, FixedFloat32ArrayMap)                        \
   V(Map, fixed_float64_array_map, FixedFloat64ArrayMap)                        \
   V(Map, fixed_uint8_clamped_array_map, FixedUint8ClampedArrayMap)             \
+  V(Map, float32x4_map, Float32x4Map)                                          \
+  V(Map, int32x4_map, Int32x4Map)                                              \
+  V(Map, uint32x4_map, Uint32x4Map)                                            \
+  V(Map, bool32x4_map, Bool32x4Map)                                            \
+  V(Map, int16x8_map, Int16x8Map)                                              \
+  V(Map, uint16x8_map, Uint16x8Map)                                            \
+  V(Map, bool16x8_map, Bool16x8Map)                                            \
+  V(Map, int8x16_map, Int8x16Map)                                              \
+  V(Map, uint8x16_map, Uint8x16Map)                                            \
+  V(Map, bool8x16_map, Bool8x16Map)                                            \
   /* Canonical empty values */                                                 \
   V(ByteArray, empty_byte_array, EmptyByteArray)                               \
   V(FixedTypedArrayBase, empty_fixed_uint8_array, EmptyFixedUint8Array)        \
   V(FixedTypedArrayBase, empty_fixed_int8_array, EmptyFixedInt8Array)          \
   V(FixedTypedArrayBase, empty_fixed_uint16_array, EmptyFixedUint16Array)      \
   V(FixedTypedArrayBase, empty_fixed_int16_array, EmptyFixedInt16Array)        \
   V(FixedTypedArrayBase, empty_fixed_uint32_array, EmptyFixedUint32Array)      \
   V(FixedTypedArrayBase, empty_fixed_int32_array, EmptyFixedInt32Array)        \
   V(FixedTypedArrayBase, empty_fixed_float32_array, EmptyFixedFloat32Array)    \
   V(FixedTypedArrayBase, empty_fixed_float64_array, EmptyFixedFloat64Array)    \
@@ skipping 114 matching lines @@
   V(NullValue)                          \
   V(TrueValue)                          \
   V(FalseValue)                         \
   V(UninitializedValue)                 \
   V(CellMap)                            \
   V(GlobalPropertyCellMap)              \
   V(SharedFunctionInfoMap)              \
   V(MetaMap)                            \
   V(HeapNumberMap)                      \
   V(MutableHeapNumberMap)               \
+  V(Float32x4Map)                       \
+  V(Int32x4Map)                         \
+  V(Uint32x4Map)                        \
+  V(Bool32x4Map)                        \
+  V(Int16x8Map)                         \
+  V(Uint16x8Map)                        \
+  V(Bool16x8Map)                        \
+  V(Int8x16Map)                         \
+  V(Uint8x16Map)                        \
+  V(Bool8x16Map)                        \
   V(NativeContextMap)                   \
   V(FixedArrayMap)                      \
   V(CodeMap)                            \
   V(ScopeInfoMap)                       \
   V(ModuleInfoMap)                      \
   V(FixedCOWArrayMap)                   \
   V(FixedDoubleArrayMap)                \
   V(WeakCellMap)                        \
   V(TransitionArrayMap)                 \
   V(NoInterceptorResultSentinel)        \
@@ skipping 1645 matching lines @@
   // Passing an allocation site means that a memento will be created that
   // points to the site.
   MUST_USE_RESULT AllocationResult
   AllocateJSObjectFromMap(Map* map, PretenureFlag pretenure = NOT_TENURED,
                           AllocationSite* allocation_site = NULL);
 
   // Allocates a HeapNumber from value.
   MUST_USE_RESULT AllocationResult AllocateHeapNumber(
       MutableMode mode = IMMUTABLE, PretenureFlag pretenure = NOT_TENURED);
 
+// Allocates SIMD values from the given lane values.
+#define SIMD_ALLOCATE_DECLARATION(TYPE, Type, type, lane_count, lane_type) \
+  AllocationResult Allocate##Type(lane_type lanes[lane_count],             \
+                                  PretenureFlag pretenure = NOT_TENURED);
+  SIMD128_TYPES(SIMD_ALLOCATE_DECLARATION)
+#undef SIMD_ALLOCATE_DECLARATION
+
   // Allocates a byte array of the specified length
   MUST_USE_RESULT AllocationResult
   AllocateByteArray(int length, PretenureFlag pretenure = NOT_TENURED);
 
   // Allocates a bytecode array with given contents.
   MUST_USE_RESULT AllocationResult
   AllocateBytecodeArray(int length, const byte* raw_bytecodes, int frame_size,
                         int parameter_count, FixedArray* constant_pool);
 
   MUST_USE_RESULT AllocationResult CopyCode(Code* code);
@@ skipping 693 matching lines @@
   friend class LargeObjectSpace;
   friend class NewSpace;
   friend class PagedSpace;
   DISALLOW_COPY_AND_ASSIGN(AllocationObserver);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_H_