Expose SIMD.Float32x4 type to Javascript.

src/arm/code-stubs-arm.cc

 // 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 237 matching lines @@
   // so we do the second best thing - test it ourselves.
   // 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.
   if (cond == lt || cond == gt) {
     // Call runtime on identical JSObjects.
     __ CompareObjectType(r0, r4, r4, FIRST_SPEC_OBJECT_TYPE);
     __ b(ge, slow);
     // Call runtime on identical symbols since we need to throw a TypeError.
     __ cmp(r4, Operand(SYMBOL_TYPE));
     __ b(eq, slow);
+    // Call runtime on identical SIMD values since we must throw a TypeError.
+    __ cmp(r4, Operand(FLOAT32X4_TYPE));
+    __ b(eq, slow);
     if (is_strong(strength)) {
       // Call the runtime on anything that is converted in the semantics, since
       // we need to throw a TypeError. Smis have already been ruled out.
       __ cmp(r4, Operand(HEAP_NUMBER_TYPE));
       __ b(eq, &return_equal);
       __ tst(r4, Operand(kIsNotStringMask));
       __ b(ne, slow);
     }
   } else {
     __ CompareObjectType(r0, r4, r4, HEAP_NUMBER_TYPE);
     __ b(eq, &heap_number);
     // Comparing JS objects with <=, >= is complicated.
     if (cond != eq) {
       __ cmp(r4, Operand(FIRST_SPEC_OBJECT_TYPE));
       __ b(ge, slow);
       // Call runtime on identical symbols since we need to throw a TypeError.
       __ cmp(r4, Operand(SYMBOL_TYPE));
       __ b(eq, slow);
+      // Call runtime on identical SIMD values since we must throw a TypeError.
+      __ cmp(r4, Operand(FLOAT32X4_TYPE));
+      __ b(eq, slow);
       if (is_strong(strength)) {
         // Call the runtime on anything that is converted in the semantics,
         // since we need to throw a TypeError. Smis and heap numbers have
         // already been ruled out.
         __ tst(r4, Operand(kIsNotStringMask));
         __ b(ne, 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.
@@ skipping 5084 matching lines @@
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM