Revert of Remove SIMD.js from V8.

src/arm64/code-stubs-arm64.cc

 // Copyright 2013 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.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 145 matching lines @@
   // They are both equal and they are not both Smis so both of them are not
   // Smis.  If it's not a heap number, then return equal.
   Register right_type = scratch;
   if ((cond == lt) || (cond == gt)) {
     // Call runtime on identical JSObjects.  Otherwise return equal.
     __ JumpIfObjectType(right, right_type, right_type, FIRST_JS_RECEIVER_TYPE,
                         slow, ge);
     // Call runtime on identical symbols since we need to throw a TypeError.
     __ Cmp(right_type, SYMBOL_TYPE);
     __ B(eq, slow);
+    // Call runtime on identical SIMD values since we must throw a TypeError.
+    __ Cmp(right_type, SIMD128_VALUE_TYPE);
+    __ B(eq, slow);
   } else if (cond == eq) {
     __ JumpIfHeapNumber(right, &heap_number);
   } else {
     __ JumpIfObjectType(right, right_type, right_type, HEAP_NUMBER_TYPE,
                         &heap_number);
     // Comparing JS objects with <=, >= is complicated.
     __ Cmp(right_type, FIRST_JS_RECEIVER_TYPE);
     __ B(ge, slow);
     // Call runtime on identical symbols since we need to throw a TypeError.
     __ Cmp(right_type, SYMBOL_TYPE);
     __ B(eq, slow);
+    // Call runtime on identical SIMD values since we must throw a TypeError.
+    __ Cmp(right_type, SIMD128_VALUE_TYPE);
+    __ B(eq, slow);
     // Normally here we fall through to return_equal, but undefined is
     // special: (undefined == undefined) == true, but
     // (undefined <= undefined) == false!  See ECMAScript 11.8.5.
     if ((cond == le) || (cond == ge)) {
       __ Cmp(right_type, ODDBALL_TYPE);
       __ B(ne, &return_equal);
       __ JumpIfNotRoot(right, Heap::kUndefinedValueRootIndex, &return_equal);
       if (cond == le) {
         // undefined <= undefined should fail.
         __ Mov(result, GREATER);
@@ skipping 3416 matching lines @@
                            kStackUnwindSpace, NULL, spill_offset,
                            return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64