deps: upgrade v8 to 3.26.33

Signed-off-by: Fedor Indutny <fedor@indutny.com>

1 files changed, 48 insertions, 44 deletions

diff --git a/deps/v8/src/elements-kind.cc b/deps/v8/src/elements-kind.cc
index ff458e0ea1..adab39679d 100644
--- a/deps/v8/src/elements-kind.cc
+++ b/deps/v8/src/elements-kind.cc
@@ -1,29 +1,6 @@
 // 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
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #include "elements-kind.h"
 
@@ -172,28 +149,55 @@ ElementsKind GetNextMoreGeneralFastElementsKind(ElementsKind elements_kind,
 }
 
 
+static bool IsTypedArrayElementsKind(ElementsKind elements_kind) {
+  return IsFixedTypedArrayElementsKind(elements_kind) ||
+      IsExternalArrayElementsKind(elements_kind);
+}
+
+
+static inline bool IsFastTransitionTarget(ElementsKind elements_kind) {
+  return IsFastElementsKind(elements_kind) ||
+      elements_kind == DICTIONARY_ELEMENTS;
+}
+
 bool IsMoreGeneralElementsKindTransition(ElementsKind from_kind,
                                          ElementsKind to_kind) {
-  switch (from_kind) {
-    case FAST_SMI_ELEMENTS:
-      return to_kind != FAST_SMI_ELEMENTS;
-    case FAST_HOLEY_SMI_ELEMENTS:
-      return to_kind != FAST_SMI_ELEMENTS &&
-          to_kind != FAST_HOLEY_SMI_ELEMENTS;
-    case FAST_DOUBLE_ELEMENTS:
-      return to_kind != FAST_SMI_ELEMENTS &&
-          to_kind != FAST_HOLEY_SMI_ELEMENTS &&
-          to_kind != FAST_DOUBLE_ELEMENTS;
-    case FAST_HOLEY_DOUBLE_ELEMENTS:
-      return to_kind == FAST_ELEMENTS ||
-          to_kind == FAST_HOLEY_ELEMENTS;
-    case FAST_ELEMENTS:
-      return to_kind == FAST_HOLEY_ELEMENTS;
-    case FAST_HOLEY_ELEMENTS:
-      return false;
-    default:
-      return false;
+  if (IsTypedArrayElementsKind(from_kind) ||
+      IsTypedArrayElementsKind(to_kind)) {
+    switch (from_kind) {
+#define FIXED_TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) \
+      case TYPE##_ELEMENTS:                                   \
+        return to_kind == EXTERNAL_##TYPE##_ELEMENTS;
+
+      TYPED_ARRAYS(FIXED_TYPED_ARRAY_CASE);
+#undef FIXED_TYPED_ARRAY_CASE
+      default:
+        return false;
+    }
+  }
+  if (IsFastElementsKind(from_kind) && IsFastTransitionTarget(to_kind)) {
+    switch (from_kind) {
+      case FAST_SMI_ELEMENTS:
+        return to_kind != FAST_SMI_ELEMENTS;
+      case FAST_HOLEY_SMI_ELEMENTS:
+        return to_kind != FAST_SMI_ELEMENTS &&
+            to_kind != FAST_HOLEY_SMI_ELEMENTS;
+      case FAST_DOUBLE_ELEMENTS:
+        return to_kind != FAST_SMI_ELEMENTS &&
+            to_kind != FAST_HOLEY_SMI_ELEMENTS &&
+            to_kind != FAST_DOUBLE_ELEMENTS;
+      case FAST_HOLEY_DOUBLE_ELEMENTS:
+        return to_kind == FAST_ELEMENTS ||
+            to_kind == FAST_HOLEY_ELEMENTS;
+      case FAST_ELEMENTS:
+        return to_kind == FAST_HOLEY_ELEMENTS;
+      case FAST_HOLEY_ELEMENTS:
+        return false;
+      default:
+        return false;
+    }
   }
+  return false;
 }