deps: update V8 to 7.0.276.20

PR-URL: https://github.com/nodejs/node/pull/22754
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

47 files changed, 1235 insertions, 642 deletions

diff --git a/deps/v8/tools/BUILD.gn b/deps/v8/tools/BUILD.gn
index 29d7b273f0..05c382e2f6 100644
--- a/deps/v8/tools/BUILD.gn
+++ b/deps/v8/tools/BUILD.gn
@@ -25,9 +25,26 @@ group("v8_check_static_initializers") {
   ]
 }
 
+group("v8_android_test_runner_deps") {
+  testonly = true
+
+  if (is_android && !build_with_chromium) {
+    data_deps = [
+      "../build/android:test_runner_py",
+    ]
+    data = [
+      # This is used by android.py, but not included by test_runner_py above.
+      "../third_party/catapult/devil/devil/android/perf/",
+    ]
+  }
+}
+
 group("v8_testrunner") {
+  testonly = true
+
   data_deps = [
     "..:v8_dump_build_config",
+    ":v8_android_test_runner_deps",
   ]
 
   data = [
diff --git a/deps/v8/tools/callstats.py.vpython b/deps/v8/tools/callstats.py.vpython
new file mode 100644
index 0000000000..11e3f34ef6
--- /dev/null
+++ b/deps/v8/tools/callstats.py.vpython
@@ -0,0 +1,43 @@
+# This is a vpython "spec" file.
+#
+# It describes patterns for python wheel dependencies of the python scripts in
+# the callstats.py, particularly for dependencies that have compiled components
+# (since pure-python dependencies can be easily vendored into third_party).
+#
+# When vpython is invoked, it finds this file and builds a python VirtualEnv,
+# containing all of the dependencies described in this file, fetching them from
+# CIPD (the "Chrome Infrastructure Package Deployer" service). Unlike `pip`,
+# this never requires the end-user machine to have a working python extension
+# compilation environment. All of these packages are built using:
+#   https://chromium.googlesource.com/infra/infra/+/master/infra/tools/dockerbuild/
+#
+# All python scripts in the repo share this same spec, to avoid dependency
+# fragmentation.
+#
+# If you have depot_tools installed in your $PATH, you can invoke python scripts
+# in this repo by running them as you normally would run them, except
+# substituting `vpython` instead of `python` on the command line, e.g.:
+#   vpython path/to/script.py some --arguments
+#
+# Read more about `vpython` and how to modify this file here:
+#   https://chromium.googlesource.com/infra/infra/+/master/doc/users/vpython.md
+
+python_version: "2.7"
+
+wheel: <
+  name: "infra/python/wheels/numpy/${vpython_platform}"
+  version: "version:1.11.3"
+>
+
+wheel: <
+  name: "infra/python/wheels/scipy/${vpython_platform}"
+  version: "version:0.19.0"
+  match_tag: <
+    abi: "cp27mu"
+    platform: "manylinux1_i686"
+  >
+  match_tag: <
+    abi: "cp27mu"
+    platform: "manylinux1_x86_64"
+  >
+>
diff --git a/deps/v8/tools/clusterfuzz/testdata/failure_output.txt b/deps/v8/tools/clusterfuzz/testdata/failure_output.txt
index 5eacc59f32..49431aec30 100644
--- a/deps/v8/tools/clusterfuzz/testdata/failure_output.txt
+++ b/deps/v8/tools/clusterfuzz/testdata/failure_output.txt
@@ -9,9 +9,9 @@
 # Compared x64,ignition with x64,ignition_turbo
 #
 # Flags of x64,ignition:
---abort_on_stack_or_string_length_overflow --expose-gc --allow-natives-syntax --invoke-weak-callbacks --omit-quit --es-staging --wasm-num-compilation-tasks=0 --random-seed 12345 --turbo-filter=~ --noopt --suppress-asm-messages
+--abort_on_stack_or_string_length_overflow --expose-gc --allow-natives-syntax --invoke-weak-callbacks --omit-quit --es-staging --wasm-num-compilation-tasks=0 --suppress-asm-messages --random-seed 12345 --turbo-filter=~ --noopt --liftoff --no-wasm-tier-up
 # Flags of x64,ignition_turbo:
---abort_on_stack_or_string_length_overflow --expose-gc --allow-natives-syntax --invoke-weak-callbacks --omit-quit --es-staging --wasm-num-compilation-tasks=0 --random-seed 12345 --suppress-asm-messages --stress-scavenge=100
+--abort_on_stack_or_string_length_overflow --expose-gc --allow-natives-syntax --invoke-weak-callbacks --omit-quit --es-staging --wasm-num-compilation-tasks=0 --suppress-asm-messages --random-seed 12345 --stress-scavenge=100
 #
 # Difference:
 - unknown
diff --git a/deps/v8/tools/clusterfuzz/v8_foozzie.py b/deps/v8/tools/clusterfuzz/v8_foozzie.py
index 28685845bb..6fcd49f209 100755
--- a/deps/v8/tools/clusterfuzz/v8_foozzie.py
+++ b/deps/v8/tools/clusterfuzz/v8_foozzie.py
@@ -21,63 +21,49 @@ import v8_commands
 import v8_suppressions
 
 CONFIGS = dict(
-  default=[
-    '--suppress-asm-messages',
-  ],
+  default=[],
   ignition=[
     '--turbo-filter=~',
     '--noopt',
-    '--suppress-asm-messages',
+    '--liftoff',
+    '--no-wasm-tier-up',
   ],
   ignition_asm=[
     '--turbo-filter=~',
     '--noopt',
     '--validate-asm',
     '--stress-validate-asm',
-    '--suppress-asm-messages',
   ],
   ignition_eager=[
     '--turbo-filter=~',
     '--noopt',
     '--no-lazy',
     '--no-lazy-inner-functions',
-    '--suppress-asm-messages',
-  ],
-  ignition_turbo=[
-    '--suppress-asm-messages',
   ],
+  ignition_turbo=[],
   ignition_turbo_opt=[
     '--always-opt',
-    '--suppress-asm-messages',
+    '--no-liftoff',
+    '--no-wasm-tier-up',
   ],
   ignition_turbo_opt_eager=[
     '--always-opt',
     '--no-lazy',
     '--no-lazy-inner-functions',
-    '--suppress-asm-messages',
-  ],
-  liftoff=[
-    '--liftoff',
-    '--no-wasm-tier-up',
-    '--suppress-asm-messages',
   ],
   slow_path=[
     '--force-slow-path',
-    '--suppress-asm-messages',
   ],
   slow_path_opt=[
     '--always-opt',
     '--force-slow-path',
-    '--suppress-asm-messages',
   ],
   trusted=[
     '--no-untrusted-code-mitigations',
-    '--suppress-asm-messages',
   ],
   trusted_opt=[
     '--always-opt',
     '--no-untrusted-code-mitigations',
-    '--suppress-asm-messages',
   ],
 )
 
@@ -107,7 +93,8 @@ ARCH_MOCKS = os.path.join(BASE_PATH, 'v8_mock_archs.js')
 
 FLAGS = ['--abort_on_stack_or_string_length_overflow', '--expose-gc',
          '--allow-natives-syntax', '--invoke-weak-callbacks', '--omit-quit',
-         '--es-staging', '--wasm-num-compilation-tasks=0']
+         '--es-staging', '--wasm-num-compilation-tasks=0',
+         '--suppress-asm-messages']
 
 SUPPORTED_ARCHS = ['ia32', 'x64', 'arm', 'arm64']
 
diff --git a/deps/v8/tools/clusterfuzz/v8_foozzie_test.py b/deps/v8/tools/clusterfuzz/v8_foozzie_test.py
index 9f6dd33c54..3b95111271 100755
--- a/deps/v8/tools/clusterfuzz/v8_foozzie_test.py
+++ b/deps/v8/tools/clusterfuzz/v8_foozzie_test.py
@@ -39,7 +39,7 @@ class ConfigTest(unittest.TestCase):
     self.assertEqual(
         [
           '--first-config=ignition',
-          '--second-config=ignition_turbo_opt',
+          '--second-config=ignition_turbo',
           '--second-d8=d8',
         ],
         v8_fuzz_config.Config('foo', Rng()).choose_foozzie_flags(),
diff --git a/deps/v8/tools/clusterfuzz/v8_fuzz_config.py b/deps/v8/tools/clusterfuzz/v8_fuzz_config.py
index 24bbf8f43d..8cc1939e38 100644
--- a/deps/v8/tools/clusterfuzz/v8_fuzz_config.py
+++ b/deps/v8/tools/clusterfuzz/v8_fuzz_config.py
@@ -13,15 +13,13 @@ FOOZZIE_EXPERIMENTS = [
   [5, 'ignition', 'trusted_opt', 'd8'],
   [10, 'ignition', 'slow_path', 'd8'],
   [5, 'ignition', 'slow_path_opt', 'd8'],
-  [20, 'ignition', 'ignition_turbo', 'd8'],
+  [25, 'ignition', 'ignition_turbo', 'd8'],
   [20, 'ignition', 'ignition_turbo_opt', 'd8'],
-  [4, 'ignition_turbo_opt', 'ignition_turbo_opt', 'clang_x86/d8'],
-  [4, 'ignition_turbo', 'ignition_turbo', 'clang_x86/d8'],
-  [4, 'ignition', 'ignition', 'clang_x86/d8'],
+  [5, 'ignition_turbo_opt', 'ignition_turbo_opt', 'clang_x86/d8'],
+  [5, 'ignition_turbo', 'ignition_turbo', 'clang_x86/d8'],
+  [5, 'ignition', 'ignition', 'clang_x86/d8'],
   [5, 'ignition', 'ignition', 'clang_x64_v8_arm64/d8'],
   [5, 'ignition', 'ignition', 'clang_x86_v8_arm/d8'],
-  [5, 'ignition', 'liftoff', 'd8'],
-  [3, 'liftoff', 'liftoff', 'clang_x86/d8'],
 ]
 
 class Config(object):
diff --git a/deps/v8/tools/csvparser.js b/deps/v8/tools/csvparser.js
index f0f8680cf8..bd106a7a41 100644
--- a/deps/v8/tools/csvparser.js
+++ b/deps/v8/tools/csvparser.js
@@ -49,6 +49,9 @@ class CsvParser {
       if (escapeIdentifier == 'n') {
         result += '\n';
         nextPos = pos;
+      } else if (escapeIdentifier == '\\') {
+        result += '\\';
+        nextPos = pos;
       } else {
         if (escapeIdentifier == 'x') {
           // \x00 ascii range escapes consume 2 chars.
diff --git a/deps/v8/tools/eval_gc_time.sh b/deps/v8/tools/eval_gc_time.sh
index 9abc93a95f..f809c3579f 100755
--- a/deps/v8/tools/eval_gc_time.sh
+++ b/deps/v8/tools/eval_gc_time.sh
@@ -94,7 +94,6 @@ INTERESTING_OLD_GEN_KEYS="\
   clear.slots_buffer \
   clear.store_buffer \
   clear.string_table \
-  clear.weak_cells \
   clear.weak_collections \
   clear.weak_lists \
   evacuate.candidates \
diff --git a/deps/v8/tools/gcmole/BUILD.gn b/deps/v8/tools/gcmole/BUILD.gn
index 99b5c0aea7..f10667e6c2 100644
--- a/deps/v8/tools/gcmole/BUILD.gn
+++ b/deps/v8/tools/gcmole/BUILD.gn
@@ -20,6 +20,7 @@ group("v8_run_gcmole") {
     "../../include/",
     "../../src/",
     "../../test/cctest/",
+    "../../test/common/",
     "../../testing/gtest/include/gtest/gtest_prod.h",
     "../../third_party/googletest/src/googletest/include/gtest/gtest_prod.h",
     "../../third_party/icu/source/",
diff --git a/deps/v8/tools/gdbinit b/deps/v8/tools/gdbinit
index ced0a82096..cea0f07b1e 100644
--- a/deps/v8/tools/gdbinit
+++ b/deps/v8/tools/gdbinit
@@ -122,3 +122,23 @@ end
 
 set disassembly-flavor intel
 set disable-randomization off
+
+# Install a handler whenever the debugger stops due to a signal. It walks up the
+# stack looking for V8_Dcheck and moves the frame to the one above it so it's
+# immediately at the line of code that triggered the DCHECK.
+python
+def dcheck_stop_handler(event):
+  orig_frame = gdb.selected_frame()
+  frame = orig_frame
+  select_frame = None
+  while frame is not None:
+    if frame.name() in ('V8_Dcheck', 'V8_Fatal'):
+      select_frame = frame.older()
+    frame = frame.older()
+
+  if select_frame is not None:
+    select_frame.select()
+    gdb.execute('frame')
+
+gdb.events.stop.connect(dcheck_stop_handler)
+end
diff --git a/deps/v8/tools/generate-header-include-checks.py b/deps/v8/tools/generate-header-include-checks.py
new file mode 100755
index 0000000000..ca3b0079ca
--- /dev/null
+++ b/deps/v8/tools/generate-header-include-checks.py
@@ -0,0 +1,156 @@
+#!/usr/bin/env python
+# vim:fenc=utf-8:shiftwidth=2
+
+# Copyright 2018 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.
+
+"""Check that each header can be included in isolation.
+
+For each header we generate one .cc file which only includes this one header.
+All these .cc files are then added to a sources.gni file which is included in
+BUILD.gn. Just compile to check whether there are any violations to the rule
+that each header must be includable in isolation.
+"""
+
+import argparse
+import os
+import os.path
+import re
+import sys
+
+# TODO(clemensh): Extend to tests.
+DEFAULT_INPUT = ['base', 'src']
+DEFAULT_GN_FILE = 'BUILD.gn'
+MY_DIR = os.path.dirname(os.path.realpath(__file__))
+V8_DIR = os.path.dirname(MY_DIR)
+OUT_DIR = os.path.join(V8_DIR, 'check-header-includes')
+AUTO_EXCLUDE = [
+  # flag-definitions.h needs a mode set for being included.
+  'src/flag-definitions.h',
+  # blacklist of headers we need to fix (https://crbug.com/v8/7965).
+  'src/allocation-site-scopes.h',
+  'src/compiler/allocation-builder.h',
+  'src/compiler/js-context-specialization.h',
+  'src/compiler/raw-machine-assembler.h',
+  'src/dateparser-inl.h',
+  'src/heap/incremental-marking.h',
+  'src/ic/ic.h',
+  'src/lookup.h',
+  'src/parsing/parser.h',
+  'src/parsing/preparser.h',
+  'src/regexp/jsregexp.h',
+  'src/snapshot/object-deserializer.h',
+  'src/transitions.h',
+]
+AUTO_EXCLUDE_PATTERNS = [
+  'src/base/atomicops_internals_.*',
+] + [
+  # platform-specific headers
+  '\\b{}\\b'.format(p) for p in
+    ('win32', 'ia32', 'x64', 'arm', 'arm64', 'mips', 'mips64', 's390', 'ppc')]
+
+args = None
+def parse_args():
+  global args
+  parser = argparse.ArgumentParser()
+  parser.add_argument('-i', '--input', type=str, action='append',
+                      help='Headers or directories to check (directories '
+                           'are scanned for headers recursively); default: ' +
+                           ','.join(DEFAULT_INPUT))
+  parser.add_argument('-x', '--exclude', type=str, action='append',
+                      help='Add an exclude pattern (regex)')
+  parser.add_argument('-v', '--verbose', action='store_true',
+                      help='Be verbose')
+  args = parser.parse_args()
+  args.exclude = (args.exclude or []) + AUTO_EXCLUDE_PATTERNS
+  args.exclude += ['^' + re.escape(x) + '$' for x in AUTO_EXCLUDE]
+  if not args.input:
+    args.input=DEFAULT_INPUT
+
+
+def printv(line):
+  if args.verbose:
+    print line
+
+
+def find_all_headers():
+  printv('Searching for headers...')
+  header_files = []
+  exclude_patterns = [re.compile(x) for x in args.exclude]
+  def add_recursively(filename):
+    full_name = os.path.join(V8_DIR, filename)
+    if not os.path.exists(full_name):
+      sys.exit('File does not exist: {}'.format(full_name))
+    if os.path.isdir(full_name):
+      for subfile in os.listdir(full_name):
+        full_name = os.path.join(filename, subfile)
+        printv('Scanning {}'.format(full_name))
+        add_recursively(full_name)
+    elif filename.endswith('.h'):
+      printv('--> Found header file {}'.format(filename))
+      for p in exclude_patterns:
+        if p.search(filename):
+          printv('--> EXCLUDED (matches {})'.format(p.pattern))
+          return
+      header_files.append(filename)
+
+  for filename in args.input:
+    add_recursively(filename)
+
+  return header_files
+
+
+def get_cc_file_name(header):
+  split = os.path.split(header)
+  header_dir = os.path.relpath(split[0], V8_DIR)
+  # Prefix with the directory name, to avoid collisions in the object files.
+  prefix = header_dir.replace(os.path.sep, '-')
+  cc_file_name = 'test-include-' + prefix + '-' + split[1][:-1] + 'cc'
+  return os.path.join(OUT_DIR, cc_file_name)
+
+
+def create_including_cc_files(header_files):
+  comment = 'check including this header in isolation'
+  for header in header_files:
+    cc_file_name = get_cc_file_name(header)
+    rel_cc_file_name = os.path.relpath(cc_file_name, V8_DIR)
+    content = '#include "{}"  // {}\n'.format(header, comment)
+    if os.path.exists(cc_file_name):
+      with open(cc_file_name) as cc_file:
+        if cc_file.read() == content:
+          printv('File {} is up to date'.format(rel_cc_file_name))
+          continue
+    printv('Creating file {}'.format(rel_cc_file_name))
+    with open(cc_file_name, 'w') as cc_file:
+      cc_file.write(content)
+
+
+def generate_gni(header_files):
+  gni_file = os.path.join(OUT_DIR, 'sources.gni')
+  printv('Generating file "{}"'.format(os.path.relpath(gni_file, V8_DIR)))
+  with open(gni_file, 'w') as gn:
+    gn.write("""\
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This list is filled automatically by tools/check_header_includes.py.
+check_header_includes_sources = [
+""");
+    for header in header_files:
+      cc_file_name = get_cc_file_name(header)
+      gn.write('    "{}",\n'.format(os.path.relpath(cc_file_name, V8_DIR)))
+    gn.write(']\n')
+
+
+def main():
+  parse_args()
+  header_files = find_all_headers()
+  if not os.path.exists(OUT_DIR):
+    os.mkdir(OUT_DIR)
+  create_including_cc_files(header_files)
+  generate_gni(header_files)
+
+if __name__ == '__main__':
+  main()
diff --git a/deps/v8/tools/grokdump.py b/deps/v8/tools/grokdump.py
index 75e80fef90..60215857c0 100755
--- a/deps/v8/tools/grokdump.py
+++ b/deps/v8/tools/grokdump.py
@@ -761,7 +761,7 @@ class MinidumpReader(object):
 
   def IsValidExceptionStackAddress(self, address):
     if not self.IsValidAddress(address): return False
-    return self.isExceptionStackAddress(address)
+    return self.IsExceptionStackAddress(address)
 
   def IsModuleAddress(self, address):
     return self.GetModuleForAddress(address) != None
@@ -1231,9 +1231,6 @@ class Map(HeapObject):
   def DependentCodeOffset(self):
     return self.CodeCacheOffset() + self.heap.PointerSize()
 
-  def WeakCellCacheOffset(self):
-    return self.DependentCodeOffset() + self.heap.PointerSize()
-
   def ReadByte(self, offset):
     return self.heap.reader.ReadU8(self.address + offset)
 
diff --git a/deps/v8/tools/heap-stats/categories.js b/deps/v8/tools/heap-stats/categories.js
index fd3e5f1497..4ede5e9a45 100644
--- a/deps/v8/tools/heap-stats/categories.js
+++ b/deps/v8/tools/heap-stats/categories.js
@@ -76,6 +76,8 @@ const CATEGORIES = new Map([
       'SHORT_EXTERNAL_STRING_TYPE',
       'SLICED_ONE_BYTE_STRING_TYPE',
       'SLICED_STRING_TYPE',
+      'STRING_EXTERNAL_RESOURCE_ONE_BYTE_TYPE',
+      'STRING_EXTERNAL_RESOURCE_TWO_BYTE_TYPE',
       'STRING_TYPE',
       'SYMBOL_TYPE',
       'THIN_ONE_BYTE_STRING_TYPE',
@@ -134,20 +136,16 @@ const CATEGORIES = new Map([
       'STRING_SPLIT_CACHE_TYPE',
       'STRING_TABLE_TYPE',
       'TRANSITION_ARRAY_TYPE',
-      'WEAK_CELL_TYPE',
       'WEAK_NEW_SPACE_OBJECT_TO_CODE_TYPE',
     ])
   ],
   [
     'code', new Set([
       'BUILTIN',
-      'BYTECODE_HANDLER',
-      'OPTIMIZED_FUNCTION',
-      'REGEXP',
-      'STUB',
       'BYTECODE_ARRAY_CONSTANT_POOL_TYPE',
       'BYTECODE_ARRAY_HANDLER_TABLE_TYPE',
       'BYTECODE_ARRAY_TYPE',
+      'BYTECODE_HANDLER',
       'CODE_DATA_CONTAINER_TYPE',
       'DEOPTIMIZATION_DATA_TYPE',
       'EMBEDDED_OBJECT_TYPE',
@@ -167,15 +165,24 @@ const CATEGORIES = new Map([
       'LOAD_HANDLER_TYPE',
       'NOSCRIPT_SHARED_FUNCTION_INFOS_TYPE',
       'OPTIMIZED_CODE_LITERALS_TYPE',
+      'OPTIMIZED_FUNCTION',
+      'PRE_PARSED_SCOPE_DATA_TYPE',
+      'REGEXP',
       'RELOC_INFO_TYPE',
+      'SCRIPT_SOURCE_EXTERNAL_ONE_BYTE_TYPE',
+      'SCRIPT_SOURCE_EXTERNAL_TWO_BYTE_TYPE',
       'SCRIPT_SOURCE_EXTERNAL_TYPE',
-      'SCRIPT_SOURCE_NON_EXTERNAL_TYPE',
+      'SCRIPT_SOURCE_NON_EXTERNAL_ONE_BYTE_TYPE',
+      'SCRIPT_SOURCE_NON_EXTERNAL_TWO_BYTE_TYPE',
       'SCRIPT_TYPE',
       'SHARED_FUNCTION_INFO_TYPE',
       'SOURCE_POSITION_TABLE_TYPE',
       'STORE_HANDLER_TYPE',
+      'STUB',
+      'UNCOMPILED_DATA_WITHOUT_PRE_PARSED_SCOPE_TYPE',
+      'UNCOMPILED_DATA_WITH_PRE_PARSED_SCOPE_TYPE',
       'UNCOMPILED_JS_FUNCTION_TYPE',
-      'UNCOMPILED_SHARED_FUNCTION_INFO_TYPE',
+      'UNCOMPILED_SHARED_FUNCTION_INFO_TYPE'
     ])
   ],
   ['unclassified', new Set()],
diff --git a/deps/v8/tools/heap-stats/trace-file-reader.js b/deps/v8/tools/heap-stats/trace-file-reader.js
index 03684978de..5c244a5e92 100644
--- a/deps/v8/tools/heap-stats/trace-file-reader.js
+++ b/deps/v8/tools/heap-stats/trace-file-reader.js
@@ -80,7 +80,16 @@ class TraceFileReader extends HTMLElement {
       // Delay the loading a bit to allow for CSS animations to happen.
       setTimeout(() => reader.readAsArrayBuffer(file), 10);
     } else {
-      reader.onload = (e) => this.processRawText(file, e.target.result);
+      reader.onload = (e) => {
+        try {
+          this.processRawText(file, e.target.result);
+          this.section.className = 'success';
+          this.$('#fileReader').classList.add('done');
+        } catch (err) {
+          console.error(err);
+          this.section.className = 'failure';
+        }
+      };
       setTimeout(() => reader.readAsText(file), 10);
     }
   }
@@ -240,7 +249,7 @@ class TraceFileReader extends HTMLElement {
         line = line.replace(/^I\/v8\s*\(\d+\):\s+/g, '');
         return JSON.parse(line);
       } catch (e) {
-        console.log('Unable to parse line: \'' + line + '\'\' (' + e + ')');
+        console.log('Unable to parse line: \'' + line + '\' (' + e + ')');
       }
       return null;
     });
diff --git a/deps/v8/tools/ic-processor.js b/deps/v8/tools/ic-processor.js
index 14f875bfdc..db1eef4295 100644
--- a/deps/v8/tools/ic-processor.js
+++ b/deps/v8/tools/ic-processor.js
@@ -61,7 +61,6 @@ function IcProcessor() {
         parsers : propertyICParser,
         processor: this.processPropertyIC.bind(this, "StoreInArrayLiteralIC") },
       });
-  this.deserializedEntriesNames_ = [];
   this.profile_ = new Profile();
 
   this.LoadIC = 0;
@@ -118,10 +117,6 @@ IcProcessor.prototype.addEntry = function(entry) {
 
 IcProcessor.prototype.processCodeCreation = function(
     type, kind, timestamp, start, size, name, maybe_func) {
-  name = this.deserializedEntriesNames_[start] || name;
-  if (name.startsWith("onComplete")) {
-    console.log(name);
-  }
   if (maybe_func.length) {
     var funcAddr = parseInt(maybe_func[0]);
     var state = parseState(maybe_func[1]);
diff --git a/deps/v8/tools/map-processor.js b/deps/v8/tools/map-processor.js
index d7385cb6e9..c0731e8555 100644
--- a/deps/v8/tools/map-processor.js
+++ b/deps/v8/tools/map-processor.js
@@ -39,7 +39,6 @@ class MapProcessor extends LogReader {
         processor: this.processMapDetails
       }
     };
-    this.deserializedEntriesNames_ = [];
     this.profile_ = new Profile();
     this.timeline_ = new Timeline();
   }
@@ -66,7 +65,7 @@ class MapProcessor extends LogReader {
         this.processLogLine(line);
       }
     } catch(e) {
-      console.log("Error occurred during parsing, trying to continue: " + e);
+      console.error("Error occurred during parsing, trying to continue: " + e);
     }
     return this.finalize();
   }
@@ -108,10 +107,6 @@ class MapProcessor extends LogReader {
 
   processCodeCreation(
     type, kind, timestamp, start, size, name, maybe_func) {
-    name = this.deserializedEntriesNames_[start] || name;
-    if (name.startsWith("onComplete")) {
-      console.log(name);
-    }
     if (maybe_func.length) {
       let funcAddr = parseInt(maybe_func[0]);
       let state = this.parseState(maybe_func[1]);
@@ -180,9 +175,6 @@ class MapProcessor extends LogReader {
   }
 
   createMap(id, time) {
-    if (id == 0x1821257d1761) {
-      console.log(id);
-    }
     let map = new V8Map(id, time);
     this.timeline_.push(map);
     return map;
diff --git a/deps/v8/tools/node/node_common.py b/deps/v8/tools/node/node_common.py
index de2e98d909..172e9df812 100755
--- a/deps/v8/tools/node/node_common.py
+++ b/deps/v8/tools/node/node_common.py
@@ -8,6 +8,7 @@ import pipes
 import shutil
 import stat
 import subprocess
+import sys
 
 DEPOT_TOOLS_URL = \
   "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
@@ -27,6 +28,10 @@ def EnsureDepotTools(v8_path, fetch_if_not_exist):
       subprocess.check_call("git clone {} {}".format(
           pipes.quote(DEPOT_TOOLS_URL),
           pipes.quote(depot_tools)), shell=True)
+      # Using check_output to hide warning messages.
+      subprocess.check_output(
+          [sys.executable, gclient_path, "metrics", "--opt-out"],
+          cwd=depot_tools)
       return depot_tools
     return None
   depot_tools = _Get(v8_path)
diff --git a/deps/v8/tools/predictable_wrapper.py b/deps/v8/tools/predictable_wrapper.py
index c357c13b41..2299a5195e 100644
--- a/deps/v8/tools/predictable_wrapper.py
+++ b/deps/v8/tools/predictable_wrapper.py
@@ -17,10 +17,14 @@ compared. Differences are reported as errors.
 import sys
 
 from testrunner.local import command
+from testrunner.local import utils
 
 MAX_TRIES = 3
 TIMEOUT = 120
 
+# Predictable mode works only when run on the host os.
+command.setup(utils.GuessOS())
+
 def main(args):
   def allocation_str(stdout):
     for line in reversed((stdout or '').splitlines()):
diff --git a/deps/v8/tools/profile.js b/deps/v8/tools/profile.js
index cddadaaf53..74b4b3bf66 100644
--- a/deps/v8/tools/profile.js
+++ b/deps/v8/tools/profile.js
@@ -1002,33 +1002,10 @@ JsonProfile.prototype.addSourcePositions = function(
   };
 };
 
-function unescapeString(s) {
-  s = s.split("\\");
-  for (var i = 1; i < s.length; i++) {
-    if (s[i] === "") {
-      // Double backslash.
-      s[i] = "\\";
-    } else if (i > 0 && s[i].startsWith("x")) {
-      // Escaped Ascii character.
-      s[i] = String.fromCharCode(parseInt(s[i].substring(1, 3), 16)) +
-          s[i].substring(3);
-    } else if (i > 0 && s[i].startsWith("u")) {
-      // Escaped unicode character.
-      s[i] = String.fromCharCode(parseInt(s[i].substring(1, 5), 16)) +
-          s[i].substring(5);
-    } else {
-      if (i > 0 && s[i - 1] !== "\\") {
-        printErr("Malformed source string");
-      }
-    }
-  }
-  return s.join("");
-}
-
 JsonProfile.prototype.addScriptSource = function(script, url, source) {
   this.scripts_[script] = {
-    name : unescapeString(url),
-    source : unescapeString(source)
+    name : url,
+    source : source
   };
 };
 
diff --git a/deps/v8/tools/profview/index.html b/deps/v8/tools/profview/index.html
index 32f7c7b70f..957b6d04d6 100644
--- a/deps/v8/tools/profview/index.html
+++ b/deps/v8/tools/profview/index.html
@@ -108,7 +108,7 @@ found in the LICENSE file. -->
 <br>
 <br>
 <br>
-Copyright the V8 Authors - Last change to this page: 2017/02/15
+Copyright the V8 Authors - Last change to this page: 2018/08/13
 </p>
 
 </body>
diff --git a/deps/v8/tools/profview/profview.css b/deps/v8/tools/profview/profview.css
index 106bfe2885..eb77ef14d8 100644
--- a/deps/v8/tools/profview/profview.css
+++ b/deps/v8/tools/profview/profview.css
@@ -2,6 +2,11 @@ table.calltree {
   width : 100%;
 }
 
+td {
+  padding-top: 0.1em;
+  padding-bottom: 0.1em;
+}
+
 .numeric {
   width : 12ex;
 }
@@ -14,27 +19,25 @@ body {
   font-family: 'Roboto', sans-serif;
 }
 
-div.code-type-chip {
-  display : inline-block;
-  padding : 0.0em;
+.tree-row-arrow {
+  margin-right: 0.2em;
+  text-align: right;
 }
 
-span.code-type-chip {
+.code-type-chip {
   border-radius : 1em;
-  display : inline-block;
-  padding : 0.1em;
+  padding : 0.2em;
   background-color : #4040c0;
   color: #ffffff;
   font-size : small;
   box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
 }
 
-span.code-type-chip-space {
-  width : 0.5ex;
-  display : inline-block;
+.tree-row-name {
+  margin-left: 0.2em;
 }
 
-span.codeid-link {
+.codeid-link {
   text-decoration: underline;
   cursor: pointer;
 }
diff --git a/deps/v8/tools/profview/profview.js b/deps/v8/tools/profview/profview.js
index d480cd4a77..e976b00be3 100644
--- a/deps/v8/tools/profview/profview.js
+++ b/deps/v8/tools/profview/profview.js
@@ -8,28 +8,27 @@ function $(id) {
   return document.getElementById(id);
 }
 
-let components = [];
-
+let components;
 function createViews() {
-  components.push(new CallTreeView());
-  components.push(new TimelineView());
-  components.push(new HelpView());
-  components.push(new SummaryView());
-  components.push(new ModeBarView());
-
-  main.setMode("summary");
+  components = [
+    new CallTreeView(),
+    new TimelineView(),
+    new HelpView(),
+    new SummaryView(),
+    new ModeBarView(),
+  ];
 }
 
 function emptyState() {
   return {
     file : null,
-    mode : "none",
+    mode : null,
     currentCodeId : null,
     start : 0,
     end : Infinity,
-    timeLine : {
-      width : 100,
-      height : 100
+    timelineSize : {
+      width : 0,
+      height : 0
     },
     callTree : {
       attribution : "js-exclude-bc",
@@ -120,22 +119,12 @@ let main = {
     }
   },
 
-  setTimeLineDimensions(width, height) {
-    if (width !== main.currentState.timeLine.width ||
-        height !== main.currentState.timeLine.height) {
-      let timeLine = Object.assign({}, main.currentState.timeLine);
-      timeLine.width = width;
-      timeLine.height = height;
-      main.currentState = Object.assign({}, main.currentState);
-      main.currentState.timeLine = timeLine;
-      main.delayRender();
-    }
-  },
-
   setFile(file) {
     if (file !== main.currentState.file) {
-      main.currentState = Object.assign({}, main.currentState);
+      let lastMode = main.currentState.mode || "summary";
+      main.currentState = emptyState();
       main.currentState.file = file;
+      main.setMode(lastMode);
       main.delayRender();
     }
   },
@@ -149,9 +138,7 @@ let main = {
   },
 
   onResize() {
-    main.setTimeLineDimensions(
-      Math.round(window.innerWidth - 20),
-      Math.round(window.innerHeight / 5));
+    main.delayRender();
   },
 
   onLoad() {
@@ -160,9 +147,7 @@ let main = {
       if (f) {
         let reader = new FileReader();
         reader.onload = function(event) {
-          let profData = JSON.parse(event.target.result);
-          main.setViewInterval(0, Infinity);
-          main.setFile(profData);
+          main.setFile(JSON.parse(event.target.result));
         };
         reader.onerror = function(event) {
           console.error(
@@ -176,7 +161,6 @@ let main = {
     $("fileinput").addEventListener(
         "change", loadHandler, false);
     createViews();
-    main.onResize();
   },
 
   delayRender()  {
@@ -188,50 +172,51 @@ let main = {
   }
 };
 
-let bucketDescriptors =
+const CATEGORY_COLOR = "#f5f5f5";
+const bucketDescriptors =
     [ { kinds : [ "JSOPT" ],
-        color : "#00ff00",
-        backgroundColor : "#c0ffc0",
+        color : "#64dd17",
+        backgroundColor : "#80e27e",
         text : "JS Optimized" },
       { kinds : [ "JSUNOPT", "BC" ],
-        color : "#ffb000",
-        backgroundColor : "#ffe0c0",
+        color : "#dd2c00",
+        backgroundColor : "#ff9e80",
         text : "JS Unoptimized" },
       { kinds : [ "IC" ],
-        color : "#ffff00",
-        backgroundColor : "#ffffc0",
+        color : "#ff6d00",
+        backgroundColor : "#ffab40",
         text : "IC" },
       { kinds : [ "STUB", "BUILTIN", "REGEXP" ],
-        color : "#ffb0b0",
-        backgroundColor : "#fff0f0",
+        color : "#ffd600",
+        backgroundColor : "#ffea00",
         text : "Other generated" },
       { kinds : [ "CPP", "LIB" ],
-        color : "#0000ff",
-        backgroundColor : "#c0c0ff",
+        color : "#304ffe",
+        backgroundColor : "#6ab7ff",
         text : "C++" },
       { kinds : [ "CPPEXT" ],
-        color : "#8080ff",
-        backgroundColor : "#e0e0ff",
+        color : "#003c8f",
+        backgroundColor : "#c0cfff",
         text : "C++/external" },
       { kinds : [ "CPPPARSE" ],
-        color : "#b890f7",
-        backgroundColor : "#ebdeff",
+        color : "#aa00ff",
+        backgroundColor : "#ffb2ff",
         text : "C++/Parser" },
       { kinds : [ "CPPCOMPBC" ],
-        color : "#52b0ce",
-        backgroundColor : "#a5c8d4",
+        color : "#43a047",
+        backgroundColor : "#88c399",
         text : "C++/Bytecode compiler" },
       { kinds : [ "CPPCOMP" ],
-        color : "#00ffff",
-        backgroundColor : "#c0ffff",
+        color : "#00e5ff",
+        backgroundColor : "#6effff",
         text : "C++/Compiler" },
       { kinds : [ "CPPGC" ],
-        color : "#ff00ff",
-        backgroundColor : "#ffc0ff",
+        color : "#6200ea",
+        backgroundColor : "#e1bee7",
         text : "C++/GC" },
       { kinds : [ "UNKNOWN" ],
-        color : "#f0f0f0",
-        backgroundColor : "#e0e0e0",
+        color : "#bdbdbd",
+        backgroundColor : "#efefef",
         text : "Unknown" }
     ];
 
@@ -260,13 +245,13 @@ function codeTypeToText(type) {
     case "UNKNOWN":
       return "Unknown";
     case "CPPPARSE":
-      return "C++ (parser)";
+      return "C++ Parser";
     case "CPPCOMPBC":
-      return "C++ (bytecode compiler)";
+      return "C++ Bytecode Compiler)";
     case "CPPCOMP":
-      return "C++ (compiler)";
+      return "C++ Compiler";
     case "CPPGC":
-      return "C++";
+      return "C++ GC";
     case "CPPEXT":
       return "C++ External";
     case "CPP":
@@ -291,27 +276,15 @@ function codeTypeToText(type) {
   console.error("Unknown type: " + type);
 }
 
-function createTypeDiv(type) {
+function createTypeNode(type) {
   if (type === "CAT") {
     return document.createTextNode("");
   }
-  let div = document.createElement("div");
-  div.classList.add("code-type-chip");
-
   let span = document.createElement("span");
   span.classList.add("code-type-chip");
   span.textContent = codeTypeToText(type);
-  div.appendChild(span);
-
-  span = document.createElement("span");
-  span.classList.add("code-type-chip-space");
-  div.appendChild(span);
-
-  return div;
-}
 
-function isBytecodeHandler(kind) {
-  return kind === "BytecodeHandler";
+  return span;
 }
 
 function filterFromFilterId(id) {
@@ -322,31 +295,42 @@ function filterFromFilterId(id) {
       return (type, kind) => type !== 'CODE';
     case "js-exclude-bc":
       return (type, kind) =>
-          type !== 'CODE' || !isBytecodeHandler(kind);
+          type !== 'CODE' || kind !== "BytecodeHandler";
   }
 }
 
-function createTableExpander(indent) {
+function createIndentNode(indent) {
   let div = document.createElement("div");
-  div.style.width = (indent + 0.5) + "em";
   div.style.display = "inline-block";
-  div.style.textAlign = "right";
+  div.style.width = (indent + 0.5) + "em";
   return div;
 }
 
+function createArrowNode() {
+  let span = document.createElement("span");
+  span.classList.add("tree-row-arrow");
+  return span;
+}
+
 function createFunctionNode(name, codeId) {
-  if (codeId === -1) {
-    return document.createTextNode(name);
-  }
   let nameElement = document.createElement("span");
-  nameElement.classList.add("codeid-link");
-  nameElement.onclick = function() {
-    main.setCurrentCode(codeId);
-  };
   nameElement.appendChild(document.createTextNode(name));
+  nameElement.classList.add("tree-row-name");
+  if (codeId !== -1) {
+    nameElement.classList.add("codeid-link");
+    nameElement.onclick = (event) => {
+      main.setCurrentCode(codeId);
+      // Prevent the click from bubbling to the row and causing it to
+      // collapse/expand.
+      event.stopPropagation();
+    };
+  }
   return nameElement;
 }
 
+const COLLAPSED_ARROW = "\u25B6";
+const EXPANDED_ARROW = "\u25BC";
+
 class CallTreeView {
   constructor() {
     this.element = $("calltree");
@@ -400,22 +384,19 @@ class CallTreeView {
   }
 
   expandTree(tree, indent) {
-    let that = this;
     let index = 0;
     let id = "R/";
     let row = tree.row;
-    let expander = tree.expander;
 
     if (row) {
       index = row.rowIndex;
       id = row.id;
 
-      // Make sure we collapse the children when the row is clicked
-      // again.
-      expander.textContent = "\u25BE";
-      let expandHandler = expander.onclick;
-      expander.onclick = () => {
-        that.collapseRow(tree, expander, expandHandler);
+      tree.arrow.textContent = EXPANDED_ARROW;
+      // Collapse the children when the row is clicked again.
+      let expandHandler = row.onclick;
+      row.onclick = () => {
+        this.collapseRow(tree, expandHandler);
       }
     }
 
@@ -439,7 +420,9 @@ class CallTreeView {
       let row = this.rows.insertRow(index);
       row.id = id + i + "/";
 
-      if (node.type !== "CAT") {
+      if (node.type === "CAT") {
+        row.style.backgroundColor = CATEGORY_COLOR;
+      } else {
         row.style.backgroundColor = bucketFromKind(node.type).backgroundColor;
       }
 
@@ -460,9 +443,10 @@ class CallTreeView {
 
       // Create the name cell.
       let nameCell = row.insertCell();
-      let expander = createTableExpander(indent + 1);
-      nameCell.appendChild(expander);
-      nameCell.appendChild(createTypeDiv(node.type));
+      nameCell.appendChild(createIndentNode(indent + 1));
+      let arrow = createArrowNode();
+      nameCell.appendChild(arrow);
+      nameCell.appendChild(createTypeNode(node.type));
       nameCell.appendChild(createFunctionNode(node.name, node.codeId));
 
       // Inclusive ticks cell.
@@ -476,18 +460,18 @@ class CallTreeView {
         c.style.textAlign = "right";
       }
       if (node.children.length > 0) {
-        expander.textContent = "\u25B8";
-        expander.onclick = () => { that.expandTree(node, indent + 1); };
+        arrow.textContent = COLLAPSED_ARROW;
+        row.onclick = () => { this.expandTree(node, indent + 1); };
       }
 
       node.row = row;
-      node.expander = expander;
+      node.arrow = arrow;
 
       index++;
     }
   }
 
-  collapseRow(tree, expander, expandHandler) {
+  collapseRow(tree, expandHandler) {
     let row = tree.row;
     let id = row.id;
     let index = row.rowIndex;
@@ -496,8 +480,8 @@ class CallTreeView {
       this.rows.deleteRow(index);
     }
 
-    expander.textContent = "\u25B8";
-    expander.onclick = expandHandler;
+    tree.arrow.textContent = COLLAPSED_ARROW;
+    row.onclick = expandHandler;
   }
 
   fillSelects(mode, calltree) {
@@ -809,10 +793,12 @@ class TimelineView {
       return;
     }
 
-    this.currentState = newState;
+    let width = Math.round(window.innerWidth - 20);
+    let height = Math.round(window.innerHeight / 5);
+
     if (oldState) {
-      if (newState.timeLine.width === oldState.timeLine.width &&
-          newState.timeLine.height === oldState.timeLine.height &&
+      if (width === oldState.timelineSize.width &&
+          height === oldState.timelineSize.height &&
           newState.file === oldState.file &&
           newState.currentCodeId === oldState.currentCodeId &&
           newState.start === oldState.start &&
@@ -821,21 +807,27 @@ class TimelineView {
         return;
       }
     }
+    this.currentState = newState;
+    this.currentState.timelineSize.width = width;
+    this.currentState.timelineSize.height = height;
 
     this.element.style.display = "inherit";
 
+    let file = this.currentState.file;
+
+    const minPixelsPerBucket = 10;
+    const minTicksPerBucket = 8;
+    let maxBuckets = Math.round(file.ticks.length / minTicksPerBucket);
+    let bucketCount = Math.min(
+        Math.round(width / minPixelsPerBucket), maxBuckets);
+
     // Make sure the canvas has the right dimensions.
-    let width = this.currentState.timeLine.width;
-    let height = this.currentState.timeLine.height;
     this.canvas.width = width;
     this.canvas.height  = height;
 
     // Make space for the selection text.
     height -= this.imageOffset;
 
-    let file = this.currentState.file;
-    if (!file) return;
-
     let currentCodeId = this.currentState.currentCodeId;
 
     let firstTime = file.ticks[0].tm;
@@ -846,13 +838,6 @@ class TimelineView {
     this.selectionStart = (start - firstTime) / (lastTime - firstTime) * width;
     this.selectionEnd = (end - firstTime) / (lastTime - firstTime) * width;
 
-    let tickCount = file.ticks.length;
-
-    let minBucketPixels = 10;
-    let minBucketSamples = 30;
-    let bucketCount = Math.min(width / minBucketPixels,
-                               tickCount / minBucketSamples);
-
     let stackProcessor = new CategorySampler(file, bucketCount);
     generateTree(file, 0, Infinity, stackProcessor);
     let codeIdProcessor = new FunctionTimelineProcessor(
@@ -873,28 +858,36 @@ class TimelineView {
       let sum = 0;
       let bucketData = [];
       let total = buckets[i].total;
-      for (let j = 0; j < bucketDescriptors.length; j++) {
-        let desc = bucketDescriptors[j];
-        for (let k = 0; k < desc.kinds.length; k++) {
-          sum += buckets[i][desc.kinds[k]];
+      if (total > 0) {
+        for (let j = 0; j < bucketDescriptors.length; j++) {
+          let desc = bucketDescriptors[j];
+          for (let k = 0; k < desc.kinds.length; k++) {
+            sum += buckets[i][desc.kinds[k]];
+          }
+          bucketData.push(Math.round(graphHeight * sum / total));
+        }
+      } else {
+        // No ticks fell into this bucket. Fill with "Unknown."
+        for (let j = 0; j < bucketDescriptors.length; j++) {
+          let desc = bucketDescriptors[j];
+          bucketData.push(desc.text === "Unknown" ? graphHeight : 0);
         }
-        bucketData.push(Math.round(graphHeight * sum / total));
       }
       bucketsGraph.push(bucketData);
     }
 
     // Draw the category graph into the buffer.
-    let bucketWidth = width / bucketsGraph.length;
+    let bucketWidth = width / (bucketsGraph.length - 1);
     let ctx = buffer.getContext('2d');
     for (let i = 0; i < bucketsGraph.length - 1; i++) {
       let bucketData = bucketsGraph[i];
       let nextBucketData = bucketsGraph[i + 1];
+      let x1 = Math.round(i * bucketWidth);
+      let x2 = Math.round((i + 1) * bucketWidth);
       for (let j = 0; j < bucketData.length; j++) {
-        let x1 = Math.round(i * bucketWidth);
-        let x2 = Math.round((i + 1) * bucketWidth);
         ctx.beginPath();
-        ctx.moveTo(x1, j && bucketData[j - 1]);
-        ctx.lineTo(x2, j && nextBucketData[j - 1]);
+        ctx.moveTo(x1, j > 0 ? bucketData[j - 1] : 0);
+        ctx.lineTo(x2, j > 0 ? nextBucketData[j - 1] : 0);
         ctx.lineTo(x2, nextBucketData[j]);
         ctx.lineTo(x1, bucketData[j]);
         ctx.closePath();
@@ -1114,22 +1107,22 @@ class SummaryView {
       return row;
     }
 
-    function makeCollapsible(row, expander) {
-      expander.textContent = "\u25BE";
-      let expandHandler = expander.onclick;
-      expander.onclick = () => {
+    function makeCollapsible(row, arrow) {
+      arrow.textContent = EXPANDED_ARROW;
+      let expandHandler = row.onclick;
+      row.onclick = () => {
         let id = row.id;
         let index = row.rowIndex + 1;
         while (index < rows.rows.length &&
           rows.rows[index].id.startsWith(id)) {
           rows.deleteRow(index);
         }
-        expander.textContent = "\u25B8";
-        expander.onclick = expandHandler;
+        arrow.textContent = COLLAPSED_ARROW;
+        row.onclick = expandHandler;
       }
     }
 
-    function expandDeoptInstances(row, expander, instances, indent, kind) {
+    function expandDeoptInstances(row, arrow, instances, indent, kind) {
       let index = row.rowIndex;
       for (let i = 0; i < instances.length; i++) {
         let childRow = rows.insertRow(index + 1);
@@ -1145,18 +1138,19 @@ class SummaryView {
             document.createTextNode("Reason: " + deopt.reason));
         reasonCell.style.textIndent = indent + "em";
       }
-      makeCollapsible(row, expander);
+      makeCollapsible(row, arrow);
     }
 
-    function expandDeoptFunctionList(row, expander, list, indent, kind) {
+    function expandDeoptFunctionList(row, arrow, list, indent, kind) {
       let index = row.rowIndex;
       for (let i = 0; i < list.length; i++) {
         let childRow = rows.insertRow(index + 1);
         childRow.id = row.id + i + "/";
 
         let textCell = childRow.insertCell(-1);
-        let expander = createTableExpander(indent);
-        textCell.appendChild(expander);
+        textCell.appendChild(createIndentNode(indent));
+        let childArrow = createArrowNode();
+        textCell.appendChild(childArrow);
         textCell.appendChild(
             createFunctionNode(list[i].f.name, list[i].f.codes[0]));
 
@@ -1164,16 +1158,16 @@ class SummaryView {
         numberCell.textContent = list[i].instances.length;
         numberCell.style.textIndent = indent + "em";
 
-        expander.textContent = "\u25B8";
-        expander.onclick = () => {
+        childArrow.textContent = COLLAPSED_ARROW;
+        childRow.onclick = () => {
           expandDeoptInstances(
-              childRow, expander, list[i].instances, indent + 1);
+              childRow, childArrow, list[i].instances, indent + 1);
         };
       }
-      makeCollapsible(row, expander);
+      makeCollapsible(row, arrow);
     }
 
-    function expandOptimizedFunctionList(row, expander, list, indent, kind) {
+    function expandOptimizedFunctionList(row, arrow, list, indent, kind) {
       let index = row.rowIndex;
       for (let i = 0; i < list.length; i++) {
         let childRow = rows.insertRow(index + 1);
@@ -1188,17 +1182,19 @@ class SummaryView {
         numberCell.textContent = list[i].instances.length;
         numberCell.style.textIndent = indent + "em";
       }
-      makeCollapsible(row, expander);
+      makeCollapsible(row, arrow);
     }
 
     function addExpandableRow(text, list, indent, kind) {
       let row = rows.insertRow(-1);
 
       row.id = "opt-table/" + kind + "/";
+      row.style.backgroundColor = CATEGORY_COLOR;
 
       let textCell = row.insertCell(-1);
-      let expander = createTableExpander(indent);
-      textCell.appendChild(expander);
+      textCell.appendChild(createIndentNode(indent));
+      let arrow = createArrowNode();
+      textCell.appendChild(arrow);
       textCell.appendChild(document.createTextNode(text));
 
       let numberCell = row.insertCell(-1);
@@ -1208,16 +1204,16 @@ class SummaryView {
       }
 
       if (list.count > 0) {
-        expander.textContent = "\u25B8";
+        arrow.textContent = COLLAPSED_ARROW;
         if (kind === "opt") {
-          expander.onclick = () => {
+          row.onclick = () => {
             expandOptimizedFunctionList(
-                row, expander, list.functions, indent + 1, kind);
+                row, arrow, list.functions, indent + 1, kind);
           };
         } else {
-          expander.onclick = () => {
+          row.onclick = () => {
             expandDeoptFunctionList(
-                row, expander, list.functions, indent + 1, kind);
+                row, arrow, list.functions, indent + 1, kind);
           };
         }
       }
diff --git a/deps/v8/tools/release/create_release.py b/deps/v8/tools/release/create_release.py
index caee70308c..e5c2114b1a 100755
--- a/deps/v8/tools/release/create_release.py
+++ b/deps/v8/tools/release/create_release.py
@@ -221,7 +221,8 @@ class LandBranch(Step):
     else:
       self.GitUpload(author=self._options.author,
                      force=True,
-                     bypass_hooks=True)
+                     bypass_hooks=True,
+                     private=True)
     cmd = "cl land --bypass-hooks -f"
     if self._options.dry_run:
       print "Dry run. Command:\ngit %s" % cmd
diff --git a/deps/v8/tools/release/filter_build_files.py b/deps/v8/tools/release/filter_build_files.py
index 9cc6607108..7d3f22138a 100755
--- a/deps/v8/tools/release/filter_build_files.py
+++ b/deps/v8/tools/release/filter_build_files.py
@@ -35,7 +35,7 @@ SUPPLEMENTARY_FILES = [
 LIBRARY_FILES = {
   'android': ['*.a', '*.so'],
   'linux': ['*.a', '*.so'],
-  'mac': ['*.a', '*.so', '*.dylib'],
+  'mac': ['*.a', '*.so'],
   'win': ['*.lib', '*.dll'],
 }
 
diff --git a/deps/v8/tools/release/git_recipes.py b/deps/v8/tools/release/git_recipes.py
index f3ac16058c..9deaee891b 100644
--- a/deps/v8/tools/release/git_recipes.py
+++ b/deps/v8/tools/release/git_recipes.py
@@ -206,8 +206,8 @@ class GitRecipesMixin(object):
     self.Git(MakeArgs(args), **kwargs)
 
   def GitUpload(self, reviewer="", author="", force=False, cq=False,
-                cq_dry_run=False, bypass_hooks=False, cc="", tbr_reviewer="",
-                **kwargs):
+                cq_dry_run=False, bypass_hooks=False, cc="", private=False,
+                tbr_reviewer="", **kwargs):
     args = ["cl upload --send-mail"]
     if author:
       args += ["--email", Quoted(author)]
@@ -226,6 +226,8 @@ class GitRecipesMixin(object):
     if cc:
       args += ["--cc", Quoted(cc)]
     args += ["--gerrit"]
+    if private:
+      args += ["--private"]
     # TODO(machenbach): Check output in forced mode. Verify that all required
     # base files were uploaded, if not retry.
     self.Git(MakeArgs(args), pipe=False, **kwargs)
diff --git a/deps/v8/tools/release/test_scripts.py b/deps/v8/tools/release/test_scripts.py
index 86326bfda2..565b2b7c8f 100755
--- a/deps/v8/tools/release/test_scripts.py
+++ b/deps/v8/tools/release/test_scripts.py
@@ -934,7 +934,7 @@ TBR=reviewer@chromium.org"""
       Cmd("git commit -aF \"%s\"" % TEST_CONFIG["COMMITMSG_FILE"], "",
           cb=CheckVersionCommit),
       Cmd("git cl upload --send-mail --email \"author@chromium.org\" "
-          "-f --bypass-hooks --gerrit", ""),
+          "-f --bypass-hooks --gerrit --private", ""),
       Cmd("git cl land --bypass-hooks -f", ""),
       Cmd("git fetch", ""),
       Cmd("git log -1 --format=%H --grep="
diff --git a/deps/v8/tools/run_perf.py b/deps/v8/tools/run_perf.py
index e0a9fc3b59..310bd8a008 100755
--- a/deps/v8/tools/run_perf.py
+++ b/deps/v8/tools/run_perf.py
@@ -56,7 +56,7 @@ A suite without "tests" is considered a performance test itself.
 Full example (suite with one runner):
 {
   "path": ["."],
-  "owner": ["username@chromium.org"],
+  "owners": ["username@chromium.org"],
   "flags": ["--expose-gc"],
   "test_flags": ["5"],
   "archs": ["ia32", "x64"],
@@ -76,7 +76,7 @@ Full example (suite with one runner):
 Full example (suite with several runners):
 {
   "path": ["."],
-  "owner": ["username@chromium.org", "otherowner@google.com"],
+  "owners": ["username@chromium.org", "otherowner@google.com"],
   "flags": ["--expose-gc"],
   "archs": ["ia32", "x64"],
   "run_count": 5,
@@ -109,6 +109,7 @@ import re
 import subprocess
 import sys
 
+from testrunner.local import android
 from testrunner.local import command
 from testrunner.local import utils
 
@@ -126,25 +127,6 @@ RESULT_LIST_RE = re.compile(r"^\[([^\]]+)\]$")
 TOOLS_BASE = os.path.abspath(os.path.dirname(__file__))
 
 
-def LoadAndroidBuildTools(path):  # pragma: no cover
-  assert os.path.exists(path)
-  sys.path.insert(0, path)
-
-  import devil_chromium
-  from devil.android import device_errors  # pylint: disable=import-error
-  from devil.android import device_utils  # pylint: disable=import-error
-  from devil.android.sdk import adb_wrapper  # pylint: disable=import-error
-  from devil.android.perf import cache_control  # pylint: disable=import-error
-  from devil.android.perf import perf_control  # pylint: disable=import-error
-  global adb_wrapper
-  global cache_control
-  global device_errors
-  global device_utils
-  global perf_control
-
-  devil_chromium.Initialize()
-
-
 def GeometricMean(values):
   """Returns the geometric mean of a list of values.
 
@@ -257,8 +239,7 @@ def RunResultsProcessor(results_processor, stdout, count):
       stderr=subprocess.PIPE,
   )
   result, _ = p.communicate(input=stdout)
-  print ">>> Processed stdout (#%d):" % count
-  print result
+  logging.info(">>> Processed stdout (#%d):\n%s", count, result)
   return result
 
 
@@ -504,7 +485,7 @@ class RunnableConfig(GraphConfig):
     # TODO(machenbach): This requires +.exe if run on windows.
     extra_flags = extra_flags or []
     if self.binary != 'd8' and '--prof' in extra_flags:
-      print "Profiler supported only on a benchmark run with d8"
+      logging.info("Profiler supported only on a benchmark run with d8")
 
     if self.process_size:
       cmd_prefix = ["/usr/bin/time", "--format=MaxMemory: %MKB"] + cmd_prefix
@@ -630,10 +611,19 @@ class Platform(object):
     self.shell_dir = options.shell_dir
     self.shell_dir_secondary = options.shell_dir_secondary
     self.extra_flags = options.extra_flags.split()
+    self.options = options
+
+  @staticmethod
+  def ReadBuildConfig(options):
+    config_path = os.path.join(options.shell_dir, 'v8_build_config.json')
+    if not os.path.isfile(config_path):
+      return {}
+    with open(config_path) as f:
+      return json.load(f)
 
   @staticmethod
   def GetPlatform(options):
-    if options.android_build_tools:
+    if Platform.ReadBuildConfig(options).get('is_android', False):
       return AndroidPlatform(options)
     else:
       return DesktopPlatform(options)
@@ -664,6 +654,9 @@ class DesktopPlatform(Platform):
     super(DesktopPlatform, self).__init__(options)
     self.command_prefix = []
 
+    # Setup command class to OS specific version.
+    command.setup(utils.GuessOS())
+
     if options.prioritize or options.affinitize != None:
       self.command_prefix = ["schedtool"]
       if options.prioritize:
@@ -695,26 +688,24 @@ class DesktopPlatform(Platform):
     cmd = runnable.GetCommand(self.command_prefix, shell_dir, self.extra_flags)
     try:
       output = cmd.execute()
-    except OSError as e:  # pragma: no cover
-      print title % "OSError"
-      print e
+    except OSError:  # pragma: no cover
+      logging.exception(title % "OSError")
       return ""
 
-    print title % "Stdout"
-    print output.stdout
+    logging.info(title % "Stdout" + "\n%s", output.stdout)
     if output.stderr:  # pragma: no cover
       # Print stderr for debugging.
-      print title % "Stderr"
-      print output.stderr
+      logging.info(title % "Stderr" + "\n%s", output.stderr)
     if output.timed_out:
-      print ">>> Test timed out after %ss." % runnable.timeout
+      logging.warning(">>> Test timed out after %ss.", runnable.timeout)
     if '--prof' in self.extra_flags:
       os_prefix = {"linux": "linux", "macos": "mac"}.get(utils.GuessOS())
       if os_prefix:
         tick_tools = os.path.join(TOOLS_BASE, "%s-tick-processor" % os_prefix)
         subprocess.check_call(tick_tools + " --only-summary", shell=True)
       else:  # pragma: no cover
-        print "Profiler option currently supported on Linux and Mac OS."
+        logging.warning(
+            "Profiler option currently supported on Linux and Mac OS.")
 
     # time outputs to stderr
     if runnable.process_size:
@@ -723,95 +714,17 @@ class DesktopPlatform(Platform):
 
 
 class AndroidPlatform(Platform):  # pragma: no cover
-  DEVICE_DIR = "/data/local/tmp/v8/"
 
   def __init__(self, options):
     super(AndroidPlatform, self).__init__(options)
-    LoadAndroidBuildTools(options.android_build_tools)
-
-    if not options.device:
-      # Detect attached device if not specified.
-      devices = adb_wrapper.AdbWrapper.Devices()
-      assert devices and len(devices) == 1, (
-          "None or multiple devices detected. Please specify the device on "
-          "the command-line with --device")
-      options.device = str(devices[0])
-    self.adb_wrapper = adb_wrapper.AdbWrapper(options.device)
-    self.device = device_utils.DeviceUtils(self.adb_wrapper)
+    self.driver = android.android_driver(options.device)
 
   def PreExecution(self):
-    perf = perf_control.PerfControl(self.device)
-    perf.SetHighPerfMode()
-
-    # Remember what we have already pushed to the device.
-    self.pushed = set()
+    self.driver.set_high_perf_mode()
 
   def PostExecution(self):
-    perf = perf_control.PerfControl(self.device)
-    perf.SetDefaultPerfMode()
-    self.device.RemovePath(
-        AndroidPlatform.DEVICE_DIR, force=True, recursive=True)
-
-  def _PushFile(self, host_dir, file_name, target_rel=".",
-                skip_if_missing=False):
-    file_on_host = os.path.join(host_dir, file_name)
-    file_on_device_tmp = os.path.join(
-        AndroidPlatform.DEVICE_DIR, "_tmp_", file_name)
-    file_on_device = os.path.join(
-        AndroidPlatform.DEVICE_DIR, target_rel, file_name)
-    folder_on_device = os.path.dirname(file_on_device)
-
-    # Only attempt to push files that exist.
-    if not os.path.exists(file_on_host):
-      if not skip_if_missing:
-        logging.critical('Missing file on host: %s' % file_on_host)
-      return
-
-    # Only push files not yet pushed in one execution.
-    if file_on_host in self.pushed:
-      return
-    else:
-      self.pushed.add(file_on_host)
-
-    # Work-around for "text file busy" errors. Push the files to a temporary
-    # location and then copy them with a shell command.
-    output = self.adb_wrapper.Push(file_on_host, file_on_device_tmp)
-    # Success looks like this: "3035 KB/s (12512056 bytes in 4.025s)".
-    # Errors look like this: "failed to copy  ... ".
-    if output and not re.search('^[0-9]', output.splitlines()[-1]):
-      logging.critical('PUSH FAILED: ' + output)
-    self.adb_wrapper.Shell("mkdir -p %s" % folder_on_device)
-    self.adb_wrapper.Shell("cp %s %s" % (file_on_device_tmp, file_on_device))
-
-  def _PushExecutable(self, shell_dir, target_dir, binary):
-    self._PushFile(shell_dir, binary, target_dir)
-
-    # Push external startup data. Backwards compatible for revisions where
-    # these files didn't exist.
-    self._PushFile(
-        shell_dir,
-        "natives_blob.bin",
-        target_dir,
-        skip_if_missing=True,
-    )
-    self._PushFile(
-        shell_dir,
-        "snapshot_blob.bin",
-        target_dir,
-        skip_if_missing=True,
-    )
-    self._PushFile(
-        shell_dir,
-        "snapshot_blob_trusted.bin",
-        target_dir,
-        skip_if_missing=True,
-    )
-    self._PushFile(
-        shell_dir,
-        "icudtl.dat",
-        target_dir,
-        skip_if_missing=True,
-    )
+    self.driver.set_default_perf_mode()
+    self.driver.tear_down()
 
   def PreTests(self, node, path):
     if isinstance(node, RunnableConfig):
@@ -824,25 +737,21 @@ class AndroidPlatform(Platform):  # pragma: no cover
       bench_rel = "."
       bench_abs = suite_dir
 
-    self._PushExecutable(self.shell_dir, "bin", node.binary)
+    self.driver.push_executable(self.shell_dir, "bin", node.binary)
     if self.shell_dir_secondary:
-      self._PushExecutable(
+      self.driver.push_executable(
           self.shell_dir_secondary, "bin_secondary", node.binary)
 
     if isinstance(node, RunnableConfig):
-      self._PushFile(bench_abs, node.main, bench_rel)
+      self.driver.push_file(bench_abs, node.main, bench_rel)
     for resource in node.resources:
-      self._PushFile(bench_abs, resource, bench_rel)
+      self.driver.push_file(bench_abs, resource, bench_rel)
 
   def _Run(self, runnable, count, secondary=False):
     suffix = ' - secondary' if secondary else ''
     target_dir = "bin_secondary" if secondary else "bin"
     title = ">>> %%s (#%d)%s:" % ((count + 1), suffix)
-    cache = cache_control.CacheControl(self.device)
-    cache.DropRamCaches()
-    binary_on_device = os.path.join(
-        AndroidPlatform.DEVICE_DIR, target_dir, runnable.binary)
-    cmd = [binary_on_device] + runnable.GetCommandFlags(self.extra_flags)
+    self.driver.drop_ram_caches()
 
     # Relative path to benchmark directory.
     if runnable.path:
@@ -850,19 +759,29 @@ class AndroidPlatform(Platform):  # pragma: no cover
     else:
       bench_rel = "."
 
+    logcat_file = None
+    if self.options.dump_logcats_to:
+      runnable_name = '-'.join(runnable.graphs)
+      logcat_file = os.path.join(
+          self.options.dump_logcats_to, 'logcat-%s-#%d%s.log' % (
+            runnable_name, count + 1, '-secondary' if secondary else ''))
+      logging.debug('Dumping logcat into %s', logcat_file)
+
     try:
-      output = self.device.RunShellCommand(
-          cmd,
-          cwd=os.path.join(AndroidPlatform.DEVICE_DIR, bench_rel),
-          check_return=True,
+      stdout = self.driver.run(
+          target_dir=target_dir,
+          binary=runnable.binary,
+          args=runnable.GetCommandFlags(self.extra_flags),
+          rel_path=bench_rel,
           timeout=runnable.timeout,
-          retries=0,
+          logcat_file=logcat_file,
       )
-      stdout = "\n".join(output)
-      print title % "Stdout"
-      print stdout
-    except device_errors.CommandTimeoutError:
-      print ">>> Test timed out after %ss." % runnable.timeout
+      logging.info(title % "Stdout" + "\n%s", stdout)
+    except android.CommandFailedException as e:
+      logging.info(title % "Stdout" + "\n%s", e.output)
+      raise
+    except android.TimeoutException:
+      logging.warning(">>> Test timed out after %ss.", runnable.timeout)
       stdout = ""
     if runnable.process_size:
       return stdout + "MaxMemory: Unsupported"
@@ -895,19 +814,19 @@ class CustomMachineConfiguration:
     try:
       with open("/proc/sys/kernel/randomize_va_space", "r") as f:
         return int(f.readline().strip())
-    except Exception as e:
-      print "Failed to get current ASLR settings."
-      raise e
+    except Exception:
+      logging.exception("Failed to get current ASLR settings.")
+      raise
 
   @staticmethod
   def SetASLR(value):
     try:
       with open("/proc/sys/kernel/randomize_va_space", "w") as f:
         f.write(str(value))
-    except Exception as e:
-      print "Failed to update ASLR to %s." % value
-      print "Are we running under sudo?"
-      raise e
+    except Exception:
+      logging.exception(
+          "Failed to update ASLR to %s. Are we running under sudo?", value)
+      raise
 
     new_value = CustomMachineConfiguration.GetASLR()
     if value != new_value:
@@ -922,9 +841,9 @@ class CustomMachineConfiguration:
         if len(r) == 1:
           return range(r[0], r[0] + 1)
         return range(r[0], r[1] + 1)
-    except Exception as e:
-      print "Failed to retrieve number of CPUs."
-      raise e
+    except Exception:
+      logging.exception("Failed to retrieve number of CPUs.")
+      raise
 
   @staticmethod
   def GetCPUPathForId(cpu_index):
@@ -948,10 +867,10 @@ class CustomMachineConfiguration:
           elif ret != val:
             raise Exception("CPU cores have differing governor settings")
       return ret
-    except Exception as e:
-      print "Failed to get the current CPU governor."
-      print "Is the CPU governor disabled? Check BIOS."
-      raise e
+    except Exception:
+      logging.exception("Failed to get the current CPU governor. Is the CPU "
+                        "governor disabled? Check BIOS.")
+      raise
 
   @staticmethod
   def SetCPUGovernor(value):
@@ -962,10 +881,10 @@ class CustomMachineConfiguration:
         with open(cpu_device, "w") as f:
           f.write(value)
 
-    except Exception as e:
-      print "Failed to change CPU governor to %s." % value
-      print "Are we running under sudo?"
-      raise e
+    except Exception:
+      logging.exception("Failed to change CPU governor to %s. Are we "
+                        "running under sudo?", value)
+      raise
 
     cur_value = CustomMachineConfiguration.GetCPUGovernor()
     if cur_value != value:
@@ -973,17 +892,15 @@ class CustomMachineConfiguration:
                       % cur_value )
 
 def Main(args):
-  logging.getLogger().setLevel(logging.INFO)
   parser = optparse.OptionParser()
-  parser.add_option("--android-build-tools",
-                    help="Path to chromium's build/android. Specifying this "
-                         "option will run tests using android platform.")
+  parser.add_option("--android-build-tools", help="Deprecated.")
   parser.add_option("--arch",
                     help=("The architecture to run tests for, "
                           "'auto' or 'native' for auto-detect"),
                     default="x64")
   parser.add_option("--buildbot",
-                    help="Adapt to path structure used on buildbots",
+                    help="Adapt to path structure used on buildbots and adds "
+                         "timestamps/level to all logged status messages",
                     default=False, action="store_true")
   parser.add_option("--device",
                     help="The device ID to run Android tests on. If not given "
@@ -1034,9 +951,21 @@ def Main(args):
                     "--filter=JSTests/TypedArrays/ will run only TypedArray "
                     "benchmarks from the JSTests suite.",
                     default="")
+  parser.add_option("--run-count-multiplier", default=1, type="int",
+                    help="Multipled used to increase number of times each test "
+                    "is retried.")
+  parser.add_option("--dump-logcats-to",
+                    help="Writes logcat output from each test into specified "
+                    "directory. Only supported for android targets.")
 
   (options, args) = parser.parse_args(args)
 
+  if options.buildbot:
+    logging.basicConfig(
+        level=logging.INFO, format="%(asctime)s %(levelname)s %(message)s")
+  else:
+    logging.basicConfig(level=logging.INFO, format="%(message)s")
+
   if len(args) == 0:  # pragma: no cover
     parser.print_help()
     return 1
@@ -1045,17 +974,13 @@ def Main(args):
     options.arch = ARCH_GUESS
 
   if not options.arch in SUPPORTED_ARCHS:  # pragma: no cover
-    print "Unknown architecture %s" % options.arch
-    return 1
-
-  if options.device and not options.android_build_tools:  # pragma: no cover
-    print "Specifying a device requires Android build tools."
+    logging.error("Unknown architecture %s", options.arch)
     return 1
 
   if (options.json_test_results_secondary and
       not options.outdir_secondary):  # pragma: no cover
-    print("For writing secondary json test results, a secondary outdir patch "
-          "must be specified.")
+    logging.error("For writing secondary json test results, a secondary outdir "
+                  "patch must be specified.")
     return 1
 
   workspace = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
@@ -1070,10 +995,10 @@ def Main(args):
     default_binary_name = "d8"
   else:
     if not os.path.isfile(options.binary_override_path):
-      print "binary-override-path must be a file name"
+      logging.error("binary-override-path must be a file name")
       return 1
     if options.outdir_secondary:
-      print "specify either binary-override-path or outdir-secondary"
+      logging.error("specify either binary-override-path or outdir-secondary")
       return 1
     options.shell_dir = os.path.abspath(
         os.path.dirname(options.binary_override_path))
@@ -1132,11 +1057,12 @@ def Main(args):
         if (not runnable_name.startswith(options.filter) and
             runnable_name + "/" != options.filter):
           continue
-        print ">>> Running suite: %s" % runnable_name
+        logging.info(">>> Running suite: %s", runnable_name)
 
         def Runner():
           """Output generator that reruns several times."""
-          for i in xrange(0, max(1, runnable.run_count)):
+          total_runs = runnable.run_count * options.run_count_multiplier
+          for i in xrange(0, max(1, total_runs)):
             # TODO(machenbach): Allow timeout per arch like with run_count per
             # arch.
             yield platform.Run(runnable, i)
diff --git a/deps/v8/tools/testrunner/base_runner.py b/deps/v8/tools/testrunner/base_runner.py
index d7d2373f2d..481cc10134 100644
--- a/deps/v8/tools/testrunner/base_runner.py
+++ b/deps/v8/tools/testrunner/base_runner.py
@@ -19,6 +19,7 @@ sys.path.insert(
     os.path.dirname(os.path.abspath(__file__))))
 
 
+from testrunner.local import command
 from testrunner.local import testsuite
 from testrunner.local import utils
 from testrunner.test_config import TestConfig
@@ -171,11 +172,12 @@ class BuildConfig(object):
     else:
       self.arch = build_config['v8_target_cpu']
 
-    self.is_debug = build_config['is_debug']
     self.asan = build_config['is_asan']
     self.cfi_vptr = build_config['is_cfi']
     self.dcheck_always_on = build_config['dcheck_always_on']
     self.gcov_coverage = build_config['is_gcov_coverage']
+    self.is_android = build_config['is_android']
+    self.is_debug = build_config['is_debug']
     self.msan = build_config['is_msan']
     self.no_i18n = not build_config['v8_enable_i18n_support']
     self.no_snap = not build_config['v8_use_snapshot']
@@ -221,6 +223,7 @@ class BaseTestRunner(object):
     self.build_config = None
     self.mode_name = None
     self.mode_options = None
+    self.target_os = None
 
   def execute(self, sys_args=None):
     if sys_args is None:  # pragma: no cover
@@ -234,6 +237,7 @@ class BaseTestRunner(object):
         print ' '.join(sys.argv)
 
       self._load_build_config(options)
+      command.setup(self.target_os)
 
       try:
         self._process_default_options(options)
@@ -256,6 +260,8 @@ class BaseTestRunner(object):
       return utils.EXIT_CODE_INTERNAL_ERROR
     except KeyboardInterrupt:
       return utils.EXIT_CODE_INTERRUPTED
+    finally:
+      command.tear_down()
 
   def _create_parser(self):
     parser = optparse.OptionParser()
@@ -369,6 +375,13 @@ class BaseTestRunner(object):
       print '>>> Autodetected:'
       print self.build_config
 
+    # Represents the OS where tests are run on. Same as host OS except for
+    # Android, which is determined by build output.
+    if self.build_config.is_android:
+      self.target_os = 'android'
+    else:
+      self.target_os = utils.GuessOS()
+
   # Returns possible build paths in order:
   # gn
   # outdir
@@ -463,7 +476,11 @@ class BaseTestRunner(object):
             'build directory (%s) instead.' % self.outdir)
 
     if options.j == 0:
-      options.j = multiprocessing.cpu_count()
+      if self.build_config.is_android:
+        # Adb isn't happy about multi-processed file pushing.
+        options.j = 1
+      else:
+        options.j = multiprocessing.cpu_count()
 
     options.command_prefix = shlex.split(options.command_prefix)
     options.extra_flags = sum(map(shlex.split, options.extra_flags), [])
@@ -630,7 +647,7 @@ class BaseTestRunner(object):
       "simd_mips": simd_mips,
       "simulator": utils.UseSimulator(self.build_config.arch),
       "simulator_run": False,
-      "system": utils.GuessOS(),
+      "system": self.target_os,
       "tsan": self.build_config.tsan,
       "ubsan_vptr": self.build_config.ubsan_vptr,
     }
diff --git a/deps/v8/tools/testrunner/local/android.py b/deps/v8/tools/testrunner/local/android.py
new file mode 100644
index 0000000000..fb25bb5a17
--- /dev/null
+++ b/deps/v8/tools/testrunner/local/android.py
@@ -0,0 +1,207 @@
+# Copyright 2018 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.
+
+"""
+Wrapper around the Android device abstraction from src/build/android.
+"""
+
+import logging
+import os
+import sys
+
+
+BASE_DIR = os.path.normpath(
+    os.path.join(os.path.dirname(__file__), '..', '..', '..'))
+ANDROID_DIR = os.path.join(BASE_DIR, 'build', 'android')
+DEVICE_DIR = '/data/local/tmp/v8/'
+
+
+class TimeoutException(Exception):
+  def __init__(self, timeout):
+    self.timeout = timeout
+
+
+class CommandFailedException(Exception):
+  def __init__(self, status, output):
+    self.status = status
+    self.output = output
+
+
+class _Driver(object):
+  """Helper class to execute shell commands on an Android device."""
+  def __init__(self, device=None):
+    assert os.path.exists(ANDROID_DIR)
+    sys.path.insert(0, ANDROID_DIR)
+
+    # We import the dependencies only on demand, so that this file can be
+    # imported unconditionally.
+    import devil_chromium
+    from devil.android import device_errors  # pylint: disable=import-error
+    from devil.android import device_utils  # pylint: disable=import-error
+    from devil.android.perf import cache_control  # pylint: disable=import-error
+    from devil.android.perf import perf_control  # pylint: disable=import-error
+    from devil.android.sdk import adb_wrapper  # pylint: disable=import-error
+    global cache_control
+    global device_errors
+    global perf_control
+
+    devil_chromium.Initialize()
+
+    if not device:
+      # Detect attached device if not specified.
+      devices = adb_wrapper.AdbWrapper.Devices()
+      assert devices, 'No devices detected'
+      assert len(devices) == 1, 'Multiple devices detected.'
+      device = str(devices[0])
+    self.adb_wrapper = adb_wrapper.AdbWrapper(device)
+    self.device = device_utils.DeviceUtils(self.adb_wrapper)
+
+    # This remembers what we have already pushed to the device.
+    self.pushed = set()
+
+  def tear_down(self):
+    """Clean up files after running all tests."""
+    self.device.RemovePath(DEVICE_DIR, force=True, recursive=True)
+
+  def push_file(self, host_dir, file_name, target_rel='.',
+                skip_if_missing=False):
+    """Push a single file to the device (cached).
+
+    Args:
+      host_dir: Absolute parent directory of the file to push.
+      file_name: Name of the file to push.
+      target_rel: Parent directory of the target location on the device
+          (relative to the device's base dir for testing).
+      skip_if_missing: Keeps silent about missing files when set. Otherwise logs
+          error.
+    """
+    file_on_host = os.path.join(host_dir, file_name)
+
+    # Only push files not yet pushed in one execution.
+    if file_on_host in self.pushed:
+      return
+
+    file_on_device_tmp = os.path.join(DEVICE_DIR, '_tmp_', file_name)
+    file_on_device = os.path.join(DEVICE_DIR, target_rel, file_name)
+    folder_on_device = os.path.dirname(file_on_device)
+
+    # Only attempt to push files that exist.
+    if not os.path.exists(file_on_host):
+      if not skip_if_missing:
+        logging.critical('Missing file on host: %s' % file_on_host)
+      return
+
+    # Work-around for 'text file busy' errors. Push the files to a temporary
+    # location and then copy them with a shell command.
+    output = self.adb_wrapper.Push(file_on_host, file_on_device_tmp)
+    # Success looks like this: '3035 KB/s (12512056 bytes in 4.025s)'.
+    # Errors look like this: 'failed to copy  ... '.
+    if output and not re.search('^[0-9]', output.splitlines()[-1]):
+      logging.critical('PUSH FAILED: ' + output)
+    self.adb_wrapper.Shell('mkdir -p %s' % folder_on_device)
+    self.adb_wrapper.Shell('cp %s %s' % (file_on_device_tmp, file_on_device))
+    self.pushed.add(file_on_host)
+
+  def push_executable(self, shell_dir, target_dir, binary):
+    """Push files required to run a V8 executable.
+
+    Args:
+      shell_dir: Absolute parent directory of the executable on the host.
+      target_dir: Parent directory of the executable on the device (relative to
+          devices' base dir for testing).
+      binary: Name of the binary to push.
+    """
+    self.push_file(shell_dir, binary, target_dir)
+
+    # Push external startup data. Backwards compatible for revisions where
+    # these files didn't exist. Or for bots that don't produce these files.
+    self.push_file(
+        shell_dir,
+        'natives_blob.bin',
+        target_dir,
+        skip_if_missing=True,
+    )
+    self.push_file(
+        shell_dir,
+        'snapshot_blob.bin',
+        target_dir,
+        skip_if_missing=True,
+    )
+    self.push_file(
+        shell_dir,
+        'snapshot_blob_trusted.bin',
+        target_dir,
+        skip_if_missing=True,
+    )
+    self.push_file(
+        shell_dir,
+        'icudtl.dat',
+        target_dir,
+        skip_if_missing=True,
+    )
+
+  def run(self, target_dir, binary, args, rel_path, timeout, env=None,
+          logcat_file=False):
+    """Execute a command on the device's shell.
+
+    Args:
+      target_dir: Parent directory of the executable on the device (relative to
+          devices' base dir for testing).
+      binary: Name of the binary.
+      args: List of arguments to pass to the binary.
+      rel_path: Relative path on device to use as CWD.
+      timeout: Timeout in seconds.
+      env: The environment variables with which the command should be run.
+      logcat_file: File into which to stream adb logcat log.
+    """
+    binary_on_device = os.path.join(DEVICE_DIR, target_dir, binary)
+    cmd = [binary_on_device] + args
+    def run_inner():
+      try:
+        output = self.device.RunShellCommand(
+            cmd,
+            cwd=os.path.join(DEVICE_DIR, rel_path),
+            check_return=True,
+            env=env,
+            timeout=timeout,
+            retries=0,
+        )
+        return '\n'.join(output)
+      except device_errors.AdbCommandFailedError as e:
+        raise CommandFailedException(e.status, e.output)
+      except device_errors.CommandTimeoutError:
+        raise TimeoutException(timeout)
+
+
+    if logcat_file:
+      with self.device.GetLogcatMonitor(output_file=logcat_file) as logmon:
+        result = run_inner()
+      logmon.Close()
+      return result
+    else:
+      return run_inner()
+
+  def drop_ram_caches(self):
+    """Drop ran caches on device."""
+    cache = cache_control.CacheControl(self.device)
+    cache.DropRamCaches()
+
+  def set_high_perf_mode(self):
+    """Set device into high performance mode."""
+    perf = perf_control.PerfControl(self.device)
+    perf.SetHighPerfMode()
+
+  def set_default_perf_mode(self):
+    """Set device into default performance mode."""
+    perf = perf_control.PerfControl(self.device)
+    perf.SetDefaultPerfMode()
+
+
+_ANDROID_DRIVER = None
+def android_driver(device=None):
+  """Singleton access method to the driver class."""
+  global _ANDROID_DRIVER
+  if not _ANDROID_DRIVER:
+    _ANDROID_DRIVER = _Driver(device)
+  return _ANDROID_DRIVER
diff --git a/deps/v8/tools/testrunner/local/command.py b/deps/v8/tools/testrunner/local/command.py
index adc9c2e452..302d568e87 100644
--- a/deps/v8/tools/testrunner/local/command.py
+++ b/deps/v8/tools/testrunner/local/command.py
@@ -4,16 +4,22 @@
 
 
 import os
+import re
 import signal
 import subprocess
 import sys
 import threading
 import time
 
+from ..local.android import (
+    android_driver, CommandFailedException, TimeoutException)
 from ..local import utils
 from ..objects import output
 
 
+BASE_DIR = os.path.normpath(
+    os.path.join(os.path.dirname(os.path.abspath(__file__)), '..' , '..', '..'))
+
 SEM_INVALID_VALUE = -1
 SEM_NOGPFAULTERRORBOX = 0x0002  # Microsoft Platform SDK WinBase.h
 
@@ -33,7 +39,18 @@ class AbortException(Exception):
 
 class BaseCommand(object):
   def __init__(self, shell, args=None, cmd_prefix=None, timeout=60, env=None,
-               verbose=False):
+               verbose=False, resources_func=None):
+    """Initialize the command.
+
+    Args:
+      shell: The name of the executable (e.g. d8).
+      args: List of args to pass to the executable.
+      cmd_prefix: Prefix of command (e.g. a wrapper script).
+      timeout: Timeout in seconds.
+      env: Environment dict for execution.
+      verbose: Print additional output.
+      resources_func: Callable, returning all test files needed by this command.
+    """
     assert(timeout > 0)
 
     self.shell = shell
@@ -43,11 +60,11 @@ class BaseCommand(object):
     self.env = env or {}
     self.verbose = verbose
 
-  def execute(self, **additional_popen_kwargs):
+  def execute(self):
     if self.verbose:
       print '# %s' % self
 
-    process = self._start_process(**additional_popen_kwargs)
+    process = self._start_process()
 
     # Variable to communicate with the signal handler.
     abort_occured = [False]
@@ -79,14 +96,13 @@ class BaseCommand(object):
       duration
     )
 
-  def _start_process(self, **additional_popen_kwargs):
+  def _start_process(self):
     try:
       return subprocess.Popen(
         args=self._get_popen_args(),
         stdout=subprocess.PIPE,
         stderr=subprocess.PIPE,
         env=self._get_env(),
-        **additional_popen_kwargs
       )
     except Exception as e:
       sys.stderr.write('Error executing: %s\n' % self)
@@ -187,8 +203,85 @@ class WindowsCommand(BaseCommand):
       sys.stdout.flush()
 
 
-# Set the Command class to the OS-specific version.
-if utils.IsWindows():
-  Command = WindowsCommand
-else:
-  Command = PosixCommand
+class AndroidCommand(BaseCommand):
+  def __init__(self, shell, args=None, cmd_prefix=None, timeout=60, env=None,
+               verbose=False, resources_func=None):
+    """Initialize the command and all files that need to be pushed to the
+    Android device.
+    """
+    self.shell_name = os.path.basename(shell)
+    self.shell_dir = os.path.dirname(shell)
+    self.files_to_push = resources_func()
+
+    # Make all paths in arguments relative and also prepare files from arguments
+    # for pushing to the device.
+    rel_args = []
+    find_path_re = re.compile(r'.*(%s/[^\'"]+).*' % re.escape(BASE_DIR))
+    for arg in (args or []):
+      match = find_path_re.match(arg)
+      if match:
+        self.files_to_push.append(match.group(1))
+      rel_args.append(
+          re.sub(r'(.*)%s/(.*)' % re.escape(BASE_DIR), r'\1\2', arg))
+
+    super(AndroidCommand, self).__init__(
+        shell, args=rel_args, cmd_prefix=cmd_prefix, timeout=timeout, env=env,
+        verbose=verbose)
+
+  def execute(self, **additional_popen_kwargs):
+    """Execute the command on the device.
+
+    This pushes all required files to the device and then runs the command.
+    """
+    if self.verbose:
+      print '# %s' % self
+
+    android_driver().push_executable(self.shell_dir, 'bin', self.shell_name)
+
+    for abs_file in self.files_to_push:
+      abs_dir = os.path.dirname(abs_file)
+      file_name = os.path.basename(abs_file)
+      rel_dir = os.path.relpath(abs_dir, BASE_DIR)
+      android_driver().push_file(abs_dir, file_name, rel_dir)
+
+    start_time = time.time()
+    return_code = 0
+    timed_out = False
+    try:
+      stdout = android_driver().run(
+          'bin', self.shell_name, self.args, '.', self.timeout, self.env)
+    except CommandFailedException as e:
+      return_code = e.status
+      stdout = e.output
+    except TimeoutException as e:
+      return_code = 1
+      timed_out = True
+      # Sadly the Android driver doesn't provide output on timeout.
+      stdout = ''
+
+    duration = time.time() - start_time
+    return output.Output(
+        return_code,
+        timed_out,
+        stdout,
+        '',  # No stderr available.
+        -1,  # No pid available.
+        duration,
+    )
+
+
+Command = None
+def setup(target_os):
+  """Set the Command class to the OS-specific version."""
+  global Command
+  if target_os == 'android':
+    Command = AndroidCommand
+  elif target_os == 'windows':
+    Command = WindowsCommand
+  else:
+    Command = PosixCommand
+
+def tear_down():
+  """Clean up after using commands."""
+  if Command == AndroidCommand:
+    android_driver().tear_down()
diff --git a/deps/v8/tools/testrunner/local/statusfile.py b/deps/v8/tools/testrunner/local/statusfile.py
index ecfbf008a2..4742e84caf 100644
--- a/deps/v8/tools/testrunner/local/statusfile.py
+++ b/deps/v8/tools/testrunner/local/statusfile.py
@@ -55,7 +55,7 @@ for key in [SKIP, FAIL, PASS, CRASH, SLOW, FAIL_OK, NO_VARIANTS, FAIL_SLOPPY,
 
 # Support arches, modes to be written as keywords instead of strings.
 VARIABLES = {ALWAYS: True}
-for var in ["debug", "release", "big", "little",
+for var in ["debug", "release", "big", "little", "android",
             "android_arm", "android_arm64", "android_ia32", "android_x64",
             "arm", "arm64", "ia32", "mips", "mipsel", "mips64", "mips64el",
             "x64", "ppc", "ppc64", "s390", "s390x", "macos", "windows",
diff --git a/deps/v8/tools/testrunner/objects/testcase.py b/deps/v8/tools/testrunner/objects/testcase.py
index 39d4fbd2a7..7416590dd0 100644
--- a/deps/v8/tools/testrunner/objects/testcase.py
+++ b/deps/v8/tools/testrunner/objects/testcase.py
@@ -240,7 +240,8 @@ class TestCase(object):
       args=params,
       env=env,
       timeout=timeout,
-      verbose=self._test_config.verbose
+      verbose=self._test_config.verbose,
+      resources_func=self._get_resources,
     )
 
   def _parse_source_flags(self, source=None):
@@ -260,6 +261,14 @@ class TestCase(object):
   def _get_source_path(self):
     return None
 
+  def _get_resources(self):
+    """Returns a list of absolute paths with additional files needed by the
+    test case.
+
+    Used to push additional files to Android devices.
+    """
+    return []
+
   @property
   def output_proc(self):
     if self.expected_outcomes is outproc.OUTCOMES_PASS:
diff --git a/deps/v8/tools/testrunner/outproc/base.py b/deps/v8/tools/testrunner/outproc/base.py
index d1953dda99..39efb60fe9 100644
--- a/deps/v8/tools/testrunner/outproc/base.py
+++ b/deps/v8/tools/testrunner/outproc/base.py
@@ -85,6 +85,11 @@ class PassOutProc(BaseOutProc):
     return OUTCOMES_PASS
 
 
+class NegPassOutProc(Negative, PassOutProc):
+  """Output processor optimized for negative tests expected to PASS"""
+  pass
+
+
 class OutProc(BaseOutProc):
   """Output processor optimized for positive tests with expected outcomes
   different than a single PASS.
@@ -113,6 +118,7 @@ class OutProc(BaseOutProc):
 
 # TODO(majeski): Override __reduce__ to make it deserialize as one instance.
 DEFAULT = PassOutProc()
+DEFAULT_NEGATIVE = NegPassOutProc()
 
 
 class ExpectedOutProc(OutProc):
diff --git a/deps/v8/tools/testrunner/testproc/filter.py b/deps/v8/tools/testrunner/testproc/filter.py
index 5081997751..e2a5e972a9 100644
--- a/deps/v8/tools/testrunner/testproc/filter.py
+++ b/deps/v8/tools/testrunner/testproc/filter.py
@@ -59,25 +59,25 @@ class NameFilterProc(base.TestProcFilter):
     super(NameFilterProc, self).__init__()
 
     self._globs = defaultdict(list)
+    self._exact_matches = defaultdict(dict)
     for a in args:
       argpath = a.split('/')
       suitename = argpath[0]
       path = '/'.join(argpath[1:]) or '*'
-      self._globs[suitename].append(path)
+      if '*' in path:
+        self._globs[suitename].append(path)
+      else:
+        self._exact_matches[suitename][path] = True
 
     for s, globs in self._globs.iteritems():
       if not globs or '*' in globs:
-        self._globs[s] = []
+        self._globs[s] = ['*']
 
   def _filter(self, test):
-    globs = self._globs.get(test.suite.name)
-    if globs is None:
-      return True
-
-    if not globs:
-      return False
-
+    globs = self._globs.get(test.suite.name, [])
     for g in globs:
+      if g == '*': return False
       if fnmatch.fnmatch(test.path, g):
         return False
-    return True
+    exact_matches = self._exact_matches.get(test.suite.name, {})
+    return test.path not in exact_matches
diff --git a/deps/v8/tools/tickprocessor.js b/deps/v8/tools/tickprocessor.js
index b5efa3f69c..31acd3d7be 100644
--- a/deps/v8/tools/tickprocessor.js
+++ b/deps/v8/tools/tickprocessor.js
@@ -160,7 +160,6 @@ function TickProcessor(
   this.stateFilter_ = stateFilter;
   this.runtimeTimerFilter_ = runtimeTimerFilter;
   this.sourceMap = sourceMap;
-  this.deserializedEntriesNames_ = [];
   var ticks = this.ticks_ =
     { total: 0, unaccounted: 0, excluded: 0, gc: 0 };
 
@@ -299,7 +298,6 @@ TickProcessor.prototype.processSharedLibrary = function(
 
 TickProcessor.prototype.processCodeCreation = function(
     type, kind, timestamp, start, size, name, maybe_func) {
-  name = this.deserializedEntriesNames_[start] || name;
   if (maybe_func.length) {
     var funcAddr = parseInt(maybe_func[0]);
     var state = parseState(maybe_func[1]);
diff --git a/deps/v8/tools/torque/vim-torque/README.md b/deps/v8/tools/torque/vim-torque/README.md
new file mode 100644
index 0000000000..fbdef0fd0d
--- /dev/null
+++ b/deps/v8/tools/torque/vim-torque/README.md
@@ -0,0 +1,33 @@
+# V8 Torque syntax support for vim
+
+This plugin adds syntax highlighting support for the V8 Torque domain-specific
+language.
+
+## Installation
+
+Installation depends on your favorite plugin manager.
+
+**Pathogen:**
+
+Run
+
+```sh
+ln -s $V8/tools/torque/vim-torque ~/.vim/bundle/vim-torque
+# or ~/.config/nvim/bundle/vim-torque for Neovim
+```
+
+**Vundle:**
+
+Add this line to your `.vimrc` or `~/.config/nvim/init.vim`.
+
+```vim
+Plugin 'file:///path/to/v8/tools/torque/vim-torque'
+```
+
+**vim-plug:**
+
+Add this line to your `.vimrc` or `~/.config/nvim/init.vim`.
+
+```vim
+Plug '~/path/to/v8/tools/torque/vim-torque'
+```
diff --git a/deps/v8/tools/torque/vim-torque/ftdetect/torque.vim b/deps/v8/tools/torque/vim-torque/ftdetect/torque.vim
new file mode 100644
index 0000000000..ead2c5ef35
--- /dev/null
+++ b/deps/v8/tools/torque/vim-torque/ftdetect/torque.vim
@@ -0,0 +1 @@
+au BufRead,BufNewFile *.tq set filetype=torque
diff --git a/deps/v8/tools/torque/vim-torque/syntax/torque.vim b/deps/v8/tools/torque/vim-torque/syntax/torque.vim
new file mode 100644
index 0000000000..17713c7213
--- /dev/null
+++ b/deps/v8/tools/torque/vim-torque/syntax/torque.vim
@@ -0,0 +1,84 @@
+" Copyright 2018 the V8 project authors. All rights reserved.
+" Use of this source code is governed by a BSD-style license that can be
+" found in the LICENSE file.
+
+if !exists("main_syntax")
+  " quit when a syntax file was already loaded
+  if exists("b:current_syntax")
+    finish
+  endif
+  let main_syntax = 'torque'
+elseif exists("b:current_syntax") && b:current_syntax == "torque"
+  finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+syn match   torqueLineComment      "\/\/.*" contains=@Spell
+syn region  torqueComment	   start="/\*"  end="\*/" contains=@Spell
+syn region  torqueStringS	   start=+'+  skip=+\\\\\|\\'+  end=+'\|$+
+
+syn keyword torqueAssert assert check debug unreachable
+syn keyword torqueAtom True False Undefined Hole Null
+syn keyword torqueBoolean true false
+syn keyword torqueBranch break continue goto
+syn keyword torqueConditional if else typeswitch otherwise
+syn match torqueConstant /\v<[A-Z][A-Z0-9_]+>/
+syn match torqueConstant /\v<k[A-Z][A-Za-z0-9]*>/
+syn keyword torqueFunction macro builtin runtime
+syn keyword torqueKeyword cast convert from_constexpr min max unsafe_cast
+syn keyword torqueLabel case
+syn keyword torqueMatching try label
+syn keyword torqueModifier extern javascript constexpr
+syn match torqueNumber /\v<[0-9]+(\.[0-9]*)?>/
+syn match torqueNumber /\v<0x[0-9a-fA-F]+>/
+syn keyword torqueOperator operator
+syn keyword torqueRel extends generates labels
+syn keyword torqueRepeat while for of
+syn keyword torqueStatement return tail
+syn keyword torqueStructure module struct type
+syn keyword torqueVariable const let
+
+syn match torqueType /\v(\<)@<=([A-Za-z][0-9A-Za-z_]*)(>)@=/
+syn match torqueType /\v(:\s*(constexpr\s*)?)@<=([A-Za-z][0-9A-Za-z_]*)/
+" Include some common types also
+syn keyword torqueType Arguments void never
+syn keyword torqueType Tagged Smi HeapObject Object
+syn keyword torqueType int32 uint32 int64 intptr uintptr float32 float64
+syn keyword torqueType bool string
+syn keyword torqueType int31 RawPtr AbstractCode Code JSReceiver Context String
+syn keyword torqueType Oddball HeapNumber Number BigInt Numeric Boolean JSProxy
+syn keyword torqueType JSObject JSArray JSFunction JSBoundFunction Callable Map
+
+hi def link torqueAssert		Statement
+hi def link torqueAtom		Constant
+hi def link torqueBoolean		Boolean
+hi def link torqueBranch		Conditional
+hi def link torqueComment		Comment
+hi def link torqueConditional		Conditional
+hi def link torqueConstant		Constant
+hi def link torqueFunction		Function
+hi def link torqueKeyword		Keyword
+hi def link torqueLabel		Label
+hi def link torqueLineComment		Comment
+hi def link torqueMatching		Exception
+hi def link torqueModifier		StorageClass
+hi def link torqueNumber		Number
+hi def link torqueOperator		Operator
+hi def link torqueRel		StorageClass
+hi def link torqueRepeat		Repeat
+hi def link torqueStatement		Statement
+hi def link torqueStringS		String
+hi def link torqueStructure		Structure
+hi def link torqueType		Type
+hi def link torqueVariable		Identifier
+
+let b:current_syntax = "torque"
+if main_syntax == 'torque'
+  unlet main_syntax
+endif
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+" vim: set ts=8:
diff --git a/deps/v8/tools/try_perf.py b/deps/v8/tools/try_perf.py
index 483dfe7199..58035efcc0 100755
--- a/deps/v8/tools/try_perf.py
+++ b/deps/v8/tools/try_perf.py
@@ -16,14 +16,15 @@ BOTS = {
   '--linux64_haswell': 'v8_linux64_haswell_perf_try',
   '--nexus5': 'v8_nexus5_perf_try',
   '--nexus7': 'v8_nexus7_perf_try',
-  '--nexus9': 'v8_nexus9_perf_try',
   '--nexus10': 'v8_nexus10_perf_try',
+  '--pixel2': 'v8_pixel2_perf_try',
 }
 
 # This list will contain builder names that should be triggered on an internal
 # swarming bucket instead of internal Buildbot master.
 SWARMING_BOTS = [
   'v8_linux64_perf_try',
+  'v8_pixel2_perf_try',
 ]
 
 DEFAULT_BOTS = [
diff --git a/deps/v8/tools/unittests/run_perf_test.py b/deps/v8/tools/unittests/run_perf_test.py
index 07dd515406..6ba18e0b9e 100755
--- a/deps/v8/tools/unittests/run_perf_test.py
+++ b/deps/v8/tools/unittests/run_perf_test.py
@@ -6,8 +6,7 @@
 from collections import namedtuple
 import coverage
 import json
-from mock import DEFAULT
-from mock import MagicMock
+from mock import MagicMock, patch
 import os
 from os import path, sys
 import platform
@@ -27,6 +26,7 @@ TEST_WORKSPACE = path.join(tempfile.gettempdir(), "test-v8-run-perf")
 
 V8_JSON = {
   "path": ["."],
+  "owners": ["username@chromium.org"],
   "binary": "d7",
   "flags": ["--flag"],
   "main": "run.js",
@@ -40,6 +40,7 @@ V8_JSON = {
 
 V8_NESTED_SUITES_JSON = {
   "path": ["."],
+  "owners": ["username@chromium.org"],
   "flags": ["--flag"],
   "run_count": 1,
   "units": "score",
@@ -76,6 +77,7 @@ V8_NESTED_SUITES_JSON = {
 
 V8_GENERIC_JSON = {
   "path": ["."],
+  "owners": ["username@chromium.org"],
   "binary": "cc",
   "flags": ["--flag"],
   "generic": True,
@@ -429,9 +431,9 @@ class PerfTest(unittest.TestCase):
     platform.Run = MagicMock(
         return_value=("Richards: 1.234\nDeltaBlue: 10657567\n", None))
     run_perf.AndroidPlatform = MagicMock(return_value=platform)
-    self.assertEquals(
-        0, self._CallMain("--android-build-tools", "/some/dir",
-                          "--arch", "arm"))
+    with patch.object(run_perf.Platform, 'ReadBuildConfig',
+        MagicMock(return_value={'is_android': True})):
+      self.assertEquals(0, self._CallMain("--arch", "arm"))
     self._VerifyResults("test", "score", [
       {"name": "Richards", "results": ["1.234"], "stddev": ""},
       {"name": "DeltaBlue", "results": ["10657567.0"], "stddev": ""},
diff --git a/deps/v8/tools/unittests/testdata/test1.json b/deps/v8/tools/unittests/testdata/test1.json
index 7fa1faac3b..939d6e2612 100644
--- a/deps/v8/tools/unittests/testdata/test1.json
+++ b/deps/v8/tools/unittests/testdata/test1.json
@@ -1,5 +1,6 @@
 {
   "path": ["."],
+  "owners": ["username@chromium.org"],
   "flags": [],
   "main": "run.js",
   "run_count": 2,
diff --git a/deps/v8/tools/unittests/testdata/test2.json b/deps/v8/tools/unittests/testdata/test2.json
index 79fed2652f..632c4e5c6e 100644
--- a/deps/v8/tools/unittests/testdata/test2.json
+++ b/deps/v8/tools/unittests/testdata/test2.json
@@ -1,5 +1,6 @@
 {
   "path": ["."],
+  "owners": ["username@chromium.org"],
   "flags": [],
   "main": "run.js",
   "run_count": 2,
diff --git a/deps/v8/tools/unittests/testdata/test3.json b/deps/v8/tools/unittests/testdata/test3.json
index 1b7ef96aae..3e871de28a 100644
--- a/deps/v8/tools/unittests/testdata/test3.json
+++ b/deps/v8/tools/unittests/testdata/test3.json
@@ -1,5 +1,6 @@
 {
   "path": ["."],
+  "owners": ["username@chromium.org"],
   "flags": [],
   "run_count": 1,
   "results_processor": "results_processor.py",
diff --git a/deps/v8/tools/unittests/testdata/testroot1/v8_build_config.json b/deps/v8/tools/unittests/testdata/testroot1/v8_build_config.json
index c5e3ee35f1..eb9f7bafdc 100644
--- a/deps/v8/tools/unittests/testdata/testroot1/v8_build_config.json
+++ b/deps/v8/tools/unittests/testdata/testroot1/v8_build_config.json
@@ -1,6 +1,7 @@
 {
   "current_cpu": "x64",
   "dcheck_always_on": false,
+  "is_android": false,
   "is_asan": false,
   "is_cfi": false,
   "is_component_build": false,
diff --git a/deps/v8/tools/unittests/testdata/testroot2/v8_build_config.json b/deps/v8/tools/unittests/testdata/testroot2/v8_build_config.json
index c5e3ee35f1..eb9f7bafdc 100644
--- a/deps/v8/tools/unittests/testdata/testroot2/v8_build_config.json
+++ b/deps/v8/tools/unittests/testdata/testroot2/v8_build_config.json
@@ -1,6 +1,7 @@
 {
   "current_cpu": "x64",
   "dcheck_always_on": false,
+  "is_android": false,
   "is_asan": false,
   "is_cfi": false,
   "is_component_build": false,
diff --git a/deps/v8/tools/v8heapconst.py b/deps/v8/tools/v8heapconst.py
index 56a74c208c..16927d85b3 100644
--- a/deps/v8/tools/v8heapconst.py
+++ b/deps/v8/tools/v8heapconst.py
@@ -1,4 +1,4 @@
-# Copyright 2017 the V8 project authors. All rights reserved.
+# Copyright 2018 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.
 
@@ -123,8 +123,7 @@ INSTANCE_TYPES = {
   219: "STORE_HANDLER_TYPE",
   220: "UNCOMPILED_DATA_WITHOUT_PRE_PARSED_SCOPE_TYPE",
   221: "UNCOMPILED_DATA_WITH_PRE_PARSED_SCOPE_TYPE",
-  222: "WEAK_CELL_TYPE",
-  223: "WEAK_ARRAY_LIST_TYPE",
+  222: "WEAK_ARRAY_LIST_TYPE",
   1024: "JS_PROXY_TYPE",
   1025: "JS_GLOBAL_OBJECT_TYPE",
   1026: "JS_GLOBAL_PROXY_TYPE",
@@ -159,199 +158,200 @@ INSTANCE_TYPES = {
   1081: "JS_WEAK_SET_TYPE",
   1082: "JS_TYPED_ARRAY_TYPE",
   1083: "JS_DATA_VIEW_TYPE",
-  1084: "JS_INTL_LOCALE_TYPE",
-  1085: "JS_INTL_RELATIVE_TIME_FORMAT_TYPE",
-  1086: "WASM_GLOBAL_TYPE",
-  1087: "WASM_INSTANCE_TYPE",
-  1088: "WASM_MEMORY_TYPE",
-  1089: "WASM_MODULE_TYPE",
-  1090: "WASM_TABLE_TYPE",
-  1091: "JS_BOUND_FUNCTION_TYPE",
-  1092: "JS_FUNCTION_TYPE",
+  1084: "JS_INTL_COLLATOR_TYPE",
+  1085: "JS_INTL_LIST_FORMAT_TYPE",
+  1086: "JS_INTL_LOCALE_TYPE",
+  1087: "JS_INTL_PLURAL_RULES_TYPE",
+  1088: "JS_INTL_RELATIVE_TIME_FORMAT_TYPE",
+  1089: "WASM_GLOBAL_TYPE",
+  1090: "WASM_INSTANCE_TYPE",
+  1091: "WASM_MEMORY_TYPE",
+  1092: "WASM_MODULE_TYPE",
+  1093: "WASM_TABLE_TYPE",
+  1094: "JS_BOUND_FUNCTION_TYPE",
+  1095: "JS_FUNCTION_TYPE",
 }
 
 # List of known V8 maps.
 KNOWN_MAPS = {
   ("RO_SPACE", 0x02201): (138, "FreeSpaceMap"),
-  ("RO_SPACE", 0x02259): (132, "MetaMap"),
-  ("RO_SPACE", 0x022e1): (131, "NullMap"),
-  ("RO_SPACE", 0x02359): (205, "DescriptorArrayMap"),
-  ("RO_SPACE", 0x023c1): (182, "FixedArrayMap"),
-  ("RO_SPACE", 0x02429): (222, "WeakCellMap"),
-  ("RO_SPACE", 0x024d1): (152, "OnePointerFillerMap"),
-  ("RO_SPACE", 0x02539): (152, "TwoPointerFillerMap"),
-  ("RO_SPACE", 0x025d1): (131, "UninitializedMap"),
-  ("RO_SPACE", 0x02661): (8, "OneByteInternalizedStringMap"),
-  ("RO_SPACE", 0x02721): (131, "UndefinedMap"),
-  ("RO_SPACE", 0x02799): (129, "HeapNumberMap"),
-  ("RO_SPACE", 0x02831): (131, "TheHoleMap"),
-  ("RO_SPACE", 0x028f9): (131, "BooleanMap"),
-  ("RO_SPACE", 0x02a09): (136, "ByteArrayMap"),
-  ("RO_SPACE", 0x02a71): (182, "FixedCOWArrayMap"),
-  ("RO_SPACE", 0x02ad9): (184, "HashTableMap"),
-  ("RO_SPACE", 0x02b41): (128, "SymbolMap"),
-  ("RO_SPACE", 0x02ba9): (72, "OneByteStringMap"),
-  ("RO_SPACE", 0x02c11): (193, "ScopeInfoMap"),
-  ("RO_SPACE", 0x02c79): (216, "SharedFunctionInfoMap"),
-  ("RO_SPACE", 0x02ce1): (133, "CodeMap"),
-  ("RO_SPACE", 0x02d49): (199, "FunctionContextMap"),
-  ("RO_SPACE", 0x02db1): (208, "CellMap"),
-  ("RO_SPACE", 0x02e19): (215, "GlobalPropertyCellMap"),
-  ("RO_SPACE", 0x02e81): (135, "ForeignMap"),
-  ("RO_SPACE", 0x02ee9): (206, "TransitionArrayMap"),
-  ("RO_SPACE", 0x02f51): (211, "FeedbackVectorMap"),
-  ("RO_SPACE", 0x02ff9): (131, "ArgumentsMarkerMap"),
-  ("RO_SPACE", 0x030b9): (131, "ExceptionMap"),
-  ("RO_SPACE", 0x03179): (131, "TerminationExceptionMap"),
-  ("RO_SPACE", 0x03241): (131, "OptimizedOutMap"),
-  ("RO_SPACE", 0x03301): (131, "StaleRegisterMap"),
-  ("RO_SPACE", 0x03391): (201, "NativeContextMap"),
-  ("RO_SPACE", 0x033f9): (200, "ModuleContextMap"),
-  ("RO_SPACE", 0x03461): (198, "EvalContextMap"),
-  ("RO_SPACE", 0x034c9): (202, "ScriptContextMap"),
-  ("RO_SPACE", 0x03531): (195, "BlockContextMap"),
-  ("RO_SPACE", 0x03599): (196, "CatchContextMap"),
-  ("RO_SPACE", 0x03601): (203, "WithContextMap"),
-  ("RO_SPACE", 0x03669): (197, "DebugEvaluateContextMap"),
-  ("RO_SPACE", 0x036d1): (194, "ScriptContextTableMap"),
-  ("RO_SPACE", 0x03739): (151, "FeedbackMetadataArrayMap"),
-  ("RO_SPACE", 0x037a1): (182, "ArrayListMap"),
-  ("RO_SPACE", 0x03809): (130, "BigIntMap"),
-  ("RO_SPACE", 0x03871): (183, "ObjectBoilerplateDescriptionMap"),
-  ("RO_SPACE", 0x038d9): (137, "BytecodeArrayMap"),
-  ("RO_SPACE", 0x03941): (209, "CodeDataContainerMap"),
-  ("RO_SPACE", 0x039a9): (150, "FixedDoubleArrayMap"),
-  ("RO_SPACE", 0x03a11): (188, "GlobalDictionaryMap"),
-  ("RO_SPACE", 0x03a79): (210, "ManyClosuresCellMap"),
-  ("RO_SPACE", 0x03ae1): (182, "ModuleInfoMap"),
-  ("RO_SPACE", 0x03b49): (134, "MutableHeapNumberMap"),
-  ("RO_SPACE", 0x03bb1): (187, "NameDictionaryMap"),
-  ("RO_SPACE", 0x03c19): (210, "NoClosuresCellMap"),
-  ("RO_SPACE", 0x03c81): (189, "NumberDictionaryMap"),
-  ("RO_SPACE", 0x03ce9): (210, "OneClosureCellMap"),
-  ("RO_SPACE", 0x03d51): (185, "OrderedHashMapMap"),
-  ("RO_SPACE", 0x03db9): (186, "OrderedHashSetMap"),
-  ("RO_SPACE", 0x03e21): (213, "PreParsedScopeDataMap"),
-  ("RO_SPACE", 0x03e89): (214, "PropertyArrayMap"),
-  ("RO_SPACE", 0x03ef1): (207, "SideEffectCallHandlerInfoMap"),
-  ("RO_SPACE", 0x03f59): (207, "SideEffectFreeCallHandlerInfoMap"),
-  ("RO_SPACE", 0x03fc1): (207, "NextCallSideEffectFreeCallHandlerInfoMap"),
-  ("RO_SPACE", 0x04029): (190, "SimpleNumberDictionaryMap"),
-  ("RO_SPACE", 0x04091): (182, "SloppyArgumentsElementsMap"),
-  ("RO_SPACE", 0x040f9): (217, "SmallOrderedHashMapMap"),
-  ("RO_SPACE", 0x04161): (218, "SmallOrderedHashSetMap"),
-  ("RO_SPACE", 0x041c9): (191, "StringTableMap"),
-  ("RO_SPACE", 0x04231): (220, "UncompiledDataWithoutPreParsedScopeMap"),
-  ("RO_SPACE", 0x04299): (221, "UncompiledDataWithPreParsedScopeMap"),
-  ("RO_SPACE", 0x04301): (204, "WeakFixedArrayMap"),
-  ("RO_SPACE", 0x04369): (223, "WeakArrayListMap"),
-  ("RO_SPACE", 0x043d1): (192, "EphemeronHashTableMap"),
-  ("RO_SPACE", 0x04439): (106, "NativeSourceStringMap"),
-  ("RO_SPACE", 0x044a1): (64, "StringMap"),
-  ("RO_SPACE", 0x04509): (73, "ConsOneByteStringMap"),
-  ("RO_SPACE", 0x04571): (65, "ConsStringMap"),
-  ("RO_SPACE", 0x045d9): (77, "ThinOneByteStringMap"),
-  ("RO_SPACE", 0x04641): (69, "ThinStringMap"),
-  ("RO_SPACE", 0x046a9): (67, "SlicedStringMap"),
-  ("RO_SPACE", 0x04711): (75, "SlicedOneByteStringMap"),
-  ("RO_SPACE", 0x04779): (66, "ExternalStringMap"),
-  ("RO_SPACE", 0x047e1): (82, "ExternalStringWithOneByteDataMap"),
-  ("RO_SPACE", 0x04849): (74, "ExternalOneByteStringMap"),
-  ("RO_SPACE", 0x048b1): (98, "ShortExternalStringMap"),
-  ("RO_SPACE", 0x04919): (114, "ShortExternalStringWithOneByteDataMap"),
-  ("RO_SPACE", 0x04981): (0, "InternalizedStringMap"),
-  ("RO_SPACE", 0x049e9): (2, "ExternalInternalizedStringMap"),
-  ("RO_SPACE", 0x04a51): (18, "ExternalInternalizedStringWithOneByteDataMap"),
-  ("RO_SPACE", 0x04ab9): (10, "ExternalOneByteInternalizedStringMap"),
-  ("RO_SPACE", 0x04b21): (34, "ShortExternalInternalizedStringMap"),
-  ("RO_SPACE", 0x04b89): (50, "ShortExternalInternalizedStringWithOneByteDataMap"),
-  ("RO_SPACE", 0x04bf1): (42, "ShortExternalOneByteInternalizedStringMap"),
-  ("RO_SPACE", 0x04c59): (106, "ShortExternalOneByteStringMap"),
-  ("RO_SPACE", 0x04cc1): (140, "FixedUint8ArrayMap"),
-  ("RO_SPACE", 0x04d29): (139, "FixedInt8ArrayMap"),
-  ("RO_SPACE", 0x04d91): (142, "FixedUint16ArrayMap"),
-  ("RO_SPACE", 0x04df9): (141, "FixedInt16ArrayMap"),
-  ("RO_SPACE", 0x04e61): (144, "FixedUint32ArrayMap"),
-  ("RO_SPACE", 0x04ec9): (143, "FixedInt32ArrayMap"),
-  ("RO_SPACE", 0x04f31): (145, "FixedFloat32ArrayMap"),
-  ("RO_SPACE", 0x04f99): (146, "FixedFloat64ArrayMap"),
-  ("RO_SPACE", 0x05001): (147, "FixedUint8ClampedArrayMap"),
-  ("RO_SPACE", 0x05069): (149, "FixedBigUint64ArrayMap"),
-  ("RO_SPACE", 0x050d1): (148, "FixedBigInt64ArrayMap"),
-  ("RO_SPACE", 0x05139): (131, "SelfReferenceMarkerMap"),
-  ("RO_SPACE", 0x051b9): (171, "Tuple2Map"),
-  ("RO_SPACE", 0x05509): (161, "InterceptorInfoMap"),
-  ("RO_SPACE", 0x05629): (169, "ScriptMap"),
-  ("RO_SPACE", 0x0a021): (154, "AccessorInfoMap"),
-  ("RO_SPACE", 0x0a089): (153, "AccessCheckInfoMap"),
-  ("RO_SPACE", 0x0a0f1): (155, "AccessorPairMap"),
-  ("RO_SPACE", 0x0a159): (156, "AliasedArgumentsEntryMap"),
-  ("RO_SPACE", 0x0a1c1): (157, "AllocationMementoMap"),
-  ("RO_SPACE", 0x0a229): (158, "AsyncGeneratorRequestMap"),
-  ("RO_SPACE", 0x0a291): (159, "DebugInfoMap"),
-  ("RO_SPACE", 0x0a2f9): (160, "FunctionTemplateInfoMap"),
-  ("RO_SPACE", 0x0a361): (162, "InterpreterDataMap"),
-  ("RO_SPACE", 0x0a3c9): (163, "ModuleInfoEntryMap"),
-  ("RO_SPACE", 0x0a431): (164, "ModuleMap"),
-  ("RO_SPACE", 0x0a499): (165, "ObjectTemplateInfoMap"),
-  ("RO_SPACE", 0x0a501): (166, "PromiseCapabilityMap"),
-  ("RO_SPACE", 0x0a569): (167, "PromiseReactionMap"),
-  ("RO_SPACE", 0x0a5d1): (168, "PrototypeInfoMap"),
-  ("RO_SPACE", 0x0a639): (170, "StackFrameInfoMap"),
-  ("RO_SPACE", 0x0a6a1): (172, "Tuple3Map"),
-  ("RO_SPACE", 0x0a709): (173, "ArrayBoilerplateDescriptionMap"),
-  ("RO_SPACE", 0x0a771): (174, "WasmDebugInfoMap"),
-  ("RO_SPACE", 0x0a7d9): (175, "WasmExportedFunctionDataMap"),
-  ("RO_SPACE", 0x0a841): (176, "CallableTaskMap"),
-  ("RO_SPACE", 0x0a8a9): (177, "CallbackTaskMap"),
-  ("RO_SPACE", 0x0a911): (178, "PromiseFulfillReactionJobTaskMap"),
-  ("RO_SPACE", 0x0a979): (179, "PromiseRejectReactionJobTaskMap"),
-  ("RO_SPACE", 0x0a9e1): (180, "PromiseResolveThenableJobTaskMap"),
-  ("RO_SPACE", 0x0aa49): (181, "AllocationSiteMap"),
-  ("RO_SPACE", 0x0aab1): (181, "AllocationSiteMap"),
+  ("RO_SPACE", 0x02251): (132, "MetaMap"),
+  ("RO_SPACE", 0x022d1): (131, "NullMap"),
+  ("RO_SPACE", 0x02341): (205, "DescriptorArrayMap"),
+  ("RO_SPACE", 0x023a1): (204, "WeakFixedArrayMap"),
+  ("RO_SPACE", 0x023f1): (152, "OnePointerFillerMap"),
+  ("RO_SPACE", 0x02441): (152, "TwoPointerFillerMap"),
+  ("RO_SPACE", 0x024c1): (131, "UninitializedMap"),
+  ("RO_SPACE", 0x02539): (8, "OneByteInternalizedStringMap"),
+  ("RO_SPACE", 0x025e1): (131, "UndefinedMap"),
+  ("RO_SPACE", 0x02641): (129, "HeapNumberMap"),
+  ("RO_SPACE", 0x026c1): (131, "TheHoleMap"),
+  ("RO_SPACE", 0x02771): (131, "BooleanMap"),
+  ("RO_SPACE", 0x02869): (136, "ByteArrayMap"),
+  ("RO_SPACE", 0x028b9): (182, "FixedArrayMap"),
+  ("RO_SPACE", 0x02909): (182, "FixedCOWArrayMap"),
+  ("RO_SPACE", 0x02959): (184, "HashTableMap"),
+  ("RO_SPACE", 0x029a9): (128, "SymbolMap"),
+  ("RO_SPACE", 0x029f9): (72, "OneByteStringMap"),
+  ("RO_SPACE", 0x02a49): (193, "ScopeInfoMap"),
+  ("RO_SPACE", 0x02a99): (216, "SharedFunctionInfoMap"),
+  ("RO_SPACE", 0x02ae9): (133, "CodeMap"),
+  ("RO_SPACE", 0x02b39): (199, "FunctionContextMap"),
+  ("RO_SPACE", 0x02b89): (208, "CellMap"),
+  ("RO_SPACE", 0x02bd9): (215, "GlobalPropertyCellMap"),
+  ("RO_SPACE", 0x02c29): (135, "ForeignMap"),
+  ("RO_SPACE", 0x02c79): (206, "TransitionArrayMap"),
+  ("RO_SPACE", 0x02cc9): (211, "FeedbackVectorMap"),
+  ("RO_SPACE", 0x02d69): (131, "ArgumentsMarkerMap"),
+  ("RO_SPACE", 0x02e11): (131, "ExceptionMap"),
+  ("RO_SPACE", 0x02eb9): (131, "TerminationExceptionMap"),
+  ("RO_SPACE", 0x02f69): (131, "OptimizedOutMap"),
+  ("RO_SPACE", 0x03011): (131, "StaleRegisterMap"),
+  ("RO_SPACE", 0x03089): (201, "NativeContextMap"),
+  ("RO_SPACE", 0x030d9): (200, "ModuleContextMap"),
+  ("RO_SPACE", 0x03129): (198, "EvalContextMap"),
+  ("RO_SPACE", 0x03179): (202, "ScriptContextMap"),
+  ("RO_SPACE", 0x031c9): (195, "BlockContextMap"),
+  ("RO_SPACE", 0x03219): (196, "CatchContextMap"),
+  ("RO_SPACE", 0x03269): (203, "WithContextMap"),
+  ("RO_SPACE", 0x032b9): (197, "DebugEvaluateContextMap"),
+  ("RO_SPACE", 0x03309): (194, "ScriptContextTableMap"),
+  ("RO_SPACE", 0x03359): (151, "FeedbackMetadataArrayMap"),
+  ("RO_SPACE", 0x033a9): (182, "ArrayListMap"),
+  ("RO_SPACE", 0x033f9): (130, "BigIntMap"),
+  ("RO_SPACE", 0x03449): (183, "ObjectBoilerplateDescriptionMap"),
+  ("RO_SPACE", 0x03499): (137, "BytecodeArrayMap"),
+  ("RO_SPACE", 0x034e9): (209, "CodeDataContainerMap"),
+  ("RO_SPACE", 0x03539): (150, "FixedDoubleArrayMap"),
+  ("RO_SPACE", 0x03589): (188, "GlobalDictionaryMap"),
+  ("RO_SPACE", 0x035d9): (210, "ManyClosuresCellMap"),
+  ("RO_SPACE", 0x03629): (182, "ModuleInfoMap"),
+  ("RO_SPACE", 0x03679): (134, "MutableHeapNumberMap"),
+  ("RO_SPACE", 0x036c9): (187, "NameDictionaryMap"),
+  ("RO_SPACE", 0x03719): (210, "NoClosuresCellMap"),
+  ("RO_SPACE", 0x03769): (189, "NumberDictionaryMap"),
+  ("RO_SPACE", 0x037b9): (210, "OneClosureCellMap"),
+  ("RO_SPACE", 0x03809): (185, "OrderedHashMapMap"),
+  ("RO_SPACE", 0x03859): (186, "OrderedHashSetMap"),
+  ("RO_SPACE", 0x038a9): (213, "PreParsedScopeDataMap"),
+  ("RO_SPACE", 0x038f9): (214, "PropertyArrayMap"),
+  ("RO_SPACE", 0x03949): (207, "SideEffectCallHandlerInfoMap"),
+  ("RO_SPACE", 0x03999): (207, "SideEffectFreeCallHandlerInfoMap"),
+  ("RO_SPACE", 0x039e9): (207, "NextCallSideEffectFreeCallHandlerInfoMap"),
+  ("RO_SPACE", 0x03a39): (190, "SimpleNumberDictionaryMap"),
+  ("RO_SPACE", 0x03a89): (182, "SloppyArgumentsElementsMap"),
+  ("RO_SPACE", 0x03ad9): (217, "SmallOrderedHashMapMap"),
+  ("RO_SPACE", 0x03b29): (218, "SmallOrderedHashSetMap"),
+  ("RO_SPACE", 0x03b79): (191, "StringTableMap"),
+  ("RO_SPACE", 0x03bc9): (220, "UncompiledDataWithoutPreParsedScopeMap"),
+  ("RO_SPACE", 0x03c19): (221, "UncompiledDataWithPreParsedScopeMap"),
+  ("RO_SPACE", 0x03c69): (222, "WeakArrayListMap"),
+  ("RO_SPACE", 0x03cb9): (192, "EphemeronHashTableMap"),
+  ("RO_SPACE", 0x03d09): (106, "NativeSourceStringMap"),
+  ("RO_SPACE", 0x03d59): (64, "StringMap"),
+  ("RO_SPACE", 0x03da9): (73, "ConsOneByteStringMap"),
+  ("RO_SPACE", 0x03df9): (65, "ConsStringMap"),
+  ("RO_SPACE", 0x03e49): (77, "ThinOneByteStringMap"),
+  ("RO_SPACE", 0x03e99): (69, "ThinStringMap"),
+  ("RO_SPACE", 0x03ee9): (67, "SlicedStringMap"),
+  ("RO_SPACE", 0x03f39): (75, "SlicedOneByteStringMap"),
+  ("RO_SPACE", 0x03f89): (66, "ExternalStringMap"),
+  ("RO_SPACE", 0x03fd9): (82, "ExternalStringWithOneByteDataMap"),
+  ("RO_SPACE", 0x04029): (74, "ExternalOneByteStringMap"),
+  ("RO_SPACE", 0x04079): (98, "ShortExternalStringMap"),
+  ("RO_SPACE", 0x040c9): (114, "ShortExternalStringWithOneByteDataMap"),
+  ("RO_SPACE", 0x04119): (0, "InternalizedStringMap"),
+  ("RO_SPACE", 0x04169): (2, "ExternalInternalizedStringMap"),
+  ("RO_SPACE", 0x041b9): (18, "ExternalInternalizedStringWithOneByteDataMap"),
+  ("RO_SPACE", 0x04209): (10, "ExternalOneByteInternalizedStringMap"),
+  ("RO_SPACE", 0x04259): (34, "ShortExternalInternalizedStringMap"),
+  ("RO_SPACE", 0x042a9): (50, "ShortExternalInternalizedStringWithOneByteDataMap"),
+  ("RO_SPACE", 0x042f9): (42, "ShortExternalOneByteInternalizedStringMap"),
+  ("RO_SPACE", 0x04349): (106, "ShortExternalOneByteStringMap"),
+  ("RO_SPACE", 0x04399): (140, "FixedUint8ArrayMap"),
+  ("RO_SPACE", 0x043e9): (139, "FixedInt8ArrayMap"),
+  ("RO_SPACE", 0x04439): (142, "FixedUint16ArrayMap"),
+  ("RO_SPACE", 0x04489): (141, "FixedInt16ArrayMap"),
+  ("RO_SPACE", 0x044d9): (144, "FixedUint32ArrayMap"),
+  ("RO_SPACE", 0x04529): (143, "FixedInt32ArrayMap"),
+  ("RO_SPACE", 0x04579): (145, "FixedFloat32ArrayMap"),
+  ("RO_SPACE", 0x045c9): (146, "FixedFloat64ArrayMap"),
+  ("RO_SPACE", 0x04619): (147, "FixedUint8ClampedArrayMap"),
+  ("RO_SPACE", 0x04669): (149, "FixedBigUint64ArrayMap"),
+  ("RO_SPACE", 0x046b9): (148, "FixedBigInt64ArrayMap"),
+  ("RO_SPACE", 0x04709): (131, "SelfReferenceMarkerMap"),
+  ("RO_SPACE", 0x04771): (171, "Tuple2Map"),
+  ("RO_SPACE", 0x04811): (173, "ArrayBoilerplateDescriptionMap"),
+  ("RO_SPACE", 0x04b01): (161, "InterceptorInfoMap"),
+  ("RO_SPACE", 0x04bf9): (169, "ScriptMap"),
+  ("RO_SPACE", 0x09aa1): (154, "AccessorInfoMap"),
+  ("RO_SPACE", 0x09af1): (153, "AccessCheckInfoMap"),
+  ("RO_SPACE", 0x09b41): (155, "AccessorPairMap"),
+  ("RO_SPACE", 0x09b91): (156, "AliasedArgumentsEntryMap"),
+  ("RO_SPACE", 0x09be1): (157, "AllocationMementoMap"),
+  ("RO_SPACE", 0x09c31): (158, "AsyncGeneratorRequestMap"),
+  ("RO_SPACE", 0x09c81): (159, "DebugInfoMap"),
+  ("RO_SPACE", 0x09cd1): (160, "FunctionTemplateInfoMap"),
+  ("RO_SPACE", 0x09d21): (162, "InterpreterDataMap"),
+  ("RO_SPACE", 0x09d71): (163, "ModuleInfoEntryMap"),
+  ("RO_SPACE", 0x09dc1): (164, "ModuleMap"),
+  ("RO_SPACE", 0x09e11): (165, "ObjectTemplateInfoMap"),
+  ("RO_SPACE", 0x09e61): (166, "PromiseCapabilityMap"),
+  ("RO_SPACE", 0x09eb1): (167, "PromiseReactionMap"),
+  ("RO_SPACE", 0x09f01): (168, "PrototypeInfoMap"),
+  ("RO_SPACE", 0x09f51): (170, "StackFrameInfoMap"),
+  ("RO_SPACE", 0x09fa1): (172, "Tuple3Map"),
+  ("RO_SPACE", 0x09ff1): (174, "WasmDebugInfoMap"),
+  ("RO_SPACE", 0x0a041): (175, "WasmExportedFunctionDataMap"),
+  ("RO_SPACE", 0x0a091): (176, "CallableTaskMap"),
+  ("RO_SPACE", 0x0a0e1): (177, "CallbackTaskMap"),
+  ("RO_SPACE", 0x0a131): (178, "PromiseFulfillReactionJobTaskMap"),
+  ("RO_SPACE", 0x0a181): (179, "PromiseRejectReactionJobTaskMap"),
+  ("RO_SPACE", 0x0a1d1): (180, "PromiseResolveThenableJobTaskMap"),
+  ("RO_SPACE", 0x0a221): (181, "AllocationSiteMap"),
+  ("RO_SPACE", 0x0a271): (181, "AllocationSiteMap"),
   ("MAP_SPACE", 0x02201): (1057, "ExternalMap"),
-  ("MAP_SPACE", 0x02259): (1072, "JSMessageObjectMap"),
+  ("MAP_SPACE", 0x02251): (1072, "JSMessageObjectMap"),
 }
 
 # List of known V8 objects.
 KNOWN_OBJECTS = {
-  ("RO_SPACE", 0x022b1): "NullValue",
-  ("RO_SPACE", 0x02339): "EmptyDescriptorArray",
-  ("RO_SPACE", 0x023b1): "EmptyFixedArray",
-  ("RO_SPACE", 0x025a1): "UninitializedValue",
-  ("RO_SPACE", 0x026f1): "UndefinedValue",
-  ("RO_SPACE", 0x02789): "NanValue",
-  ("RO_SPACE", 0x02801): "TheHoleValue",
-  ("RO_SPACE", 0x028b9): "HoleNanValue",
-  ("RO_SPACE", 0x028c9): "TrueValue",
-  ("RO_SPACE", 0x029a1): "FalseValue",
-  ("RO_SPACE", 0x029f1): "empty_string",
-  ("RO_SPACE", 0x02fb9): "EmptyScopeInfo",
-  ("RO_SPACE", 0x02fc9): "ArgumentsMarker",
-  ("RO_SPACE", 0x03089): "Exception",
-  ("RO_SPACE", 0x03149): "TerminationException",
-  ("RO_SPACE", 0x03211): "OptimizedOut",
-  ("RO_SPACE", 0x032d1): "StaleRegister",
-  ("RO_SPACE", 0x05231): "EmptyByteArray",
-  ("RO_SPACE", 0x05259): "EmptyFixedUint8Array",
-  ("RO_SPACE", 0x05279): "EmptyFixedInt8Array",
-  ("RO_SPACE", 0x05299): "EmptyFixedUint16Array",
-  ("RO_SPACE", 0x052b9): "EmptyFixedInt16Array",
-  ("RO_SPACE", 0x052d9): "EmptyFixedUint32Array",
-  ("RO_SPACE", 0x052f9): "EmptyFixedInt32Array",
-  ("RO_SPACE", 0x05319): "EmptyFixedFloat32Array",
-  ("RO_SPACE", 0x05339): "EmptyFixedFloat64Array",
-  ("RO_SPACE", 0x05359): "EmptyFixedUint8ClampedArray",
-  ("RO_SPACE", 0x053b9): "EmptySloppyArgumentsElements",
-  ("RO_SPACE", 0x053d9): "EmptySlowElementDictionary",
-  ("RO_SPACE", 0x05421): "EmptyOrderedHashMap",
-  ("RO_SPACE", 0x05449): "EmptyOrderedHashSet",
-  ("RO_SPACE", 0x05481): "EmptyPropertyCell",
-  ("RO_SPACE", 0x054a9): "EmptyWeakCell",
-  ("RO_SPACE", 0x05599): "InfinityValue",
-  ("RO_SPACE", 0x055a9): "MinusZeroValue",
-  ("RO_SPACE", 0x055b9): "MinusInfinityValue",
-  ("RO_SPACE", 0x055c9): "SelfReferenceMarker",
+  ("RO_SPACE", 0x022a1): "NullValue",
+  ("RO_SPACE", 0x02321): "EmptyDescriptorArray",
+  ("RO_SPACE", 0x02491): "UninitializedValue",
+  ("RO_SPACE", 0x025b1): "UndefinedValue",
+  ("RO_SPACE", 0x02631): "NanValue",
+  ("RO_SPACE", 0x02691): "TheHoleValue",
+  ("RO_SPACE", 0x02731): "HoleNanValue",
+  ("RO_SPACE", 0x02741): "TrueValue",
+  ("RO_SPACE", 0x02801): "FalseValue",
+  ("RO_SPACE", 0x02851): "empty_string",
+  ("RO_SPACE", 0x02d19): "EmptyScopeInfo",
+  ("RO_SPACE", 0x02d29): "EmptyFixedArray",
+  ("RO_SPACE", 0x02d39): "ArgumentsMarker",
+  ("RO_SPACE", 0x02de1): "Exception",
+  ("RO_SPACE", 0x02e89): "TerminationException",
+  ("RO_SPACE", 0x02f39): "OptimizedOut",
+  ("RO_SPACE", 0x02fe1): "StaleRegister",
+  ("RO_SPACE", 0x047d1): "EmptyByteArray",
+  ("RO_SPACE", 0x04861): "EmptyFixedUint8Array",
+  ("RO_SPACE", 0x04881): "EmptyFixedInt8Array",
+  ("RO_SPACE", 0x048a1): "EmptyFixedUint16Array",
+  ("RO_SPACE", 0x048c1): "EmptyFixedInt16Array",
+  ("RO_SPACE", 0x048e1): "EmptyFixedUint32Array",
+  ("RO_SPACE", 0x04901): "EmptyFixedInt32Array",
+  ("RO_SPACE", 0x04921): "EmptyFixedFloat32Array",
+  ("RO_SPACE", 0x04941): "EmptyFixedFloat64Array",
+  ("RO_SPACE", 0x04961): "EmptyFixedUint8ClampedArray",
+  ("RO_SPACE", 0x049c1): "EmptySloppyArgumentsElements",
+  ("RO_SPACE", 0x049e1): "EmptySlowElementDictionary",
+  ("RO_SPACE", 0x04a29): "EmptyOrderedHashMap",
+  ("RO_SPACE", 0x04a51): "EmptyOrderedHashSet",
+  ("RO_SPACE", 0x04a89): "EmptyPropertyCell",
+  ("RO_SPACE", 0x04b69): "InfinityValue",
+  ("RO_SPACE", 0x04b79): "MinusZeroValue",
+  ("RO_SPACE", 0x04b89): "MinusInfinityValue",
+  ("RO_SPACE", 0x04b99): "SelfReferenceMarker",
   ("OLD_SPACE", 0x02211): "EmptyScript",
   ("OLD_SPACE", 0x02291): "ManyClosuresCell",
   ("OLD_SPACE", 0x022b1): "NoElementsProtector",
diff --git a/deps/v8/tools/whitespace.txt b/deps/v8/tools/whitespace.txt
index e295060ab7..654e19f7e9 100644
--- a/deps/v8/tools/whitespace.txt
+++ b/deps/v8/tools/whitespace.txt
@@ -6,6 +6,5 @@ A Smi balks into a war and says:
 "I'm so deoptimized today!"
 The doubles heard this and started to unbox.
 The Smi looked at them when a crazy v8-autoroll account showed up...
-The autoroller bought a round of Himbeerbrause. Suddenly...
-The bartender starts to shake the bottles...............................
-.
+The autoroller bought a round of Himbeerbrause. Suddenly....
+The bartender starts to shake the bottles...