Expose SIMD.Float32x4 type to Javascript.

src/heap-snapshot-generator.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.
 
 #include "src/v8.h"
 
 #include "src/heap-snapshot-generator-inl.h"
 
 #include "src/allocation-tracker.h"
 #include "src/code-stubs.h"
@@ skipping 131 matching lines @@
 const char* HeapEntry::TypeAsString() {
   switch (type()) {
     case kHidden: return "/hidden/";
     case kObject: return "/object/";
     case kClosure: return "/closure/";
     case kString: return "/string/";
     case kCode: return "/code/";
     case kArray: return "/array/";
     case kRegExp: return "/regexp/";
     case kHeapNumber: return "/number/";
+    case kSimdValue:
+      return "/simd/";

[rossberg, 2015/07/02 13:35:43]

Nit: consistent layout

[bbudge, 2015/07/06 23:59:04]

Done (but this is git cl format)

     case kNative: return "/native/";
     case kSynthetic: return "/synthetic/";
     case kConsString: return "/concatenated string/";
     case kSlicedString: return "/sliced string/";
     case kSymbol: return "/symbol/";
-    case kSimdValue: return "/simd/";
     default: return "???";
   }
 }
 
 
 // It is very important to keep objects that form a heap snapshot
 // as small as possible.
 namespace {  // Avoid littering the global namespace.
 
 template <size_t ptr_size> struct SnapshotSizeConstants;
@@ skipping 3010 matching lines @@
   for (int i = 1; i < sorted_strings.length(); ++i) {
     writer_->AddCharacter(',');
     SerializeString(sorted_strings[i]);
     if (writer_->aborted()) return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8