Update V8 to 76968a2ff3

Author: hashseed

deps/v8/.gitignore

@@ -33,6 +33,7 @@
 .project
 .pydevproject
 .settings
+.torquelint-cache
 .vscode
 /Default/
 /_*
@@ -54,7 +55,7 @@
 /test/mozilla/data
 /test/test262/data
 /test/test262/harness
-/test/wasm-js
+/test/wasm-js/data
 /test/wasm-spec-tests/tests
 /test/wasm-spec-tests/tests.tar.gz
 /third_party/*

deps/v8/BUILD.gn

@@ -83,15 +83,16 @@ declare_args() {
   v8_enable_fast_mksnapshot = false
 
   # Enable embedded builtins.
-  # TODO(jgruber,v8:6666): Support ia32 and maybe MSVC.
-  v8_enable_embedded_builtins = v8_use_snapshot && v8_current_cpu != "x86" &&
-                                !is_aix && (!is_win || is_clang)
+  # TODO(v8:6666): Support no-snapshot builds, aix and MSVC.
+  v8_enable_embedded_builtins =
+      v8_use_snapshot && !is_aix && (!is_win || is_clang)
 
   # Enable code-generation-time checking of types in the CodeStubAssembler.
   v8_enable_verify_csa = false
 
   # Enable pointer compression (sets -dV8_COMPRESS_POINTERS).
   v8_enable_pointer_compression = false
+  v8_enable_31bit_smis_on_64bit_arch = false
 
   # Interpreted regexp engine exists as platform-independent alternative
   # based where the regular expression is compiled to a bytecode.
@@ -340,6 +341,9 @@ config("features") {
   if (v8_enable_pointer_compression) {
     defines += [ "V8_COMPRESS_POINTERS" ]
   }
+  if (v8_enable_31bit_smis_on_64bit_arch) {
+    defines += [ "V8_31BIT_SMIS_ON_64BIT_ARCH" ]
+  }
   if (v8_enable_object_print) {
     defines += [ "OBJECT_PRINT" ]
   }
@@ -876,6 +880,8 @@ action("postmortem-metadata") {
     "src/objects/data-handler-inl.h",
     "src/objects/fixed-array-inl.h",
     "src/objects/fixed-array.h",
+    "src/objects/heap-object-inl.h",
+    "src/objects/heap-object.h",
     "src/objects/js-array-inl.h",
     "src/objects/js-array.h",
     "src/objects/js-array-buffer-inl.h",
@@ -916,7 +922,9 @@ torque_files = [
   "src/builtins/array-foreach.tq",
   "src/builtins/array-join.tq",
   "src/builtins/array-lastindexof.tq",
+  "src/builtins/array-of.tq",
   "src/builtins/array-reverse.tq",
+  "src/builtins/array-slice.tq",
   "src/builtins/array-splice.tq",
   "src/builtins/array-unshift.tq",
   "src/builtins/typed-array.tq",
@@ -971,20 +979,6 @@ action("run_torque") {
   }
 }
 
-v8_header_set("torque_generated_core") {
-  visibility = [ ":*" ]  # Only targets in this file can depend on this.
-
-  deps = [
-    ":run_torque",
-  ]
-
-  sources = [
-    "$target_gen_dir/torque-generated/builtin-definitions-from-dsl.h",
-  ]
-
-  configs = [ ":internal_config" ]
-}
-
 v8_source_set("torque_generated_initializers") {
   visibility = [ ":*" ]  # Only targets in this file can depend on this.
 
@@ -1179,6 +1173,7 @@ action("v8_dump_build_config") {
     "v8_use_snapshot=$v8_use_snapshot",
     "v8_enable_embedded_builtins=$v8_enable_embedded_builtins",
     "v8_enable_verify_csa=$v8_enable_verify_csa",
+    "v8_enable_lite_mode=$v8_enable_lite_mode",
   ]
 
   if (v8_current_cpu == "mips" || v8_current_cpu == "mipsel" ||
@@ -1908,6 +1903,8 @@ v8_source_set("v8_base") {
     "src/compiler/wasm-compiler.h",
     "src/compiler/zone-stats.cc",
     "src/compiler/zone-stats.h",
+    "src/constant-pool.cc",
+    "src/constant-pool.h",
     "src/contexts-inl.h",
     "src/contexts.cc",
     "src/contexts.h",
@@ -2146,8 +2143,6 @@ v8_source_set("v8_base") {
     "src/interpreter/interpreter-intrinsics.h",
     "src/interpreter/interpreter.cc",
     "src/interpreter/interpreter.h",
-    "src/intl.cc",
-    "src/intl.h",
     "src/isolate-data.h",
     "src/isolate-inl.h",
     "src/isolate.cc",
@@ -2219,7 +2214,8 @@ v8_source_set("v8_base") {
     "src/objects/frame-array.h",
     "src/objects/hash-table-inl.h",
     "src/objects/hash-table.h",
-    "src/objects/intl-objects-inl.h",
+    "src/objects/heap-object-inl.h",
+    "src/objects/heap-object.h",
     "src/objects/intl-objects.cc",
     "src/objects/intl-objects.h",
     "src/objects/js-array-buffer-inl.h",
@@ -2312,6 +2308,8 @@ v8_source_set("v8_base") {
     "src/objects/script.h",
     "src/objects/shared-function-info-inl.h",
     "src/objects/shared-function-info.h",
+    "src/objects/slots-inl.h",
+    "src/objects/slots.h",
     "src/objects/stack-frame-info-inl.h",
     "src/objects/stack-frame-info.h",
     "src/objects/string-inl.h",
@@ -2582,6 +2580,7 @@ v8_source_set("v8_base") {
     "src/wasm/baseline/liftoff-compiler.cc",
     "src/wasm/baseline/liftoff-compiler.h",
     "src/wasm/baseline/liftoff-register.h",
+    "src/wasm/compilation-environment.h",
     "src/wasm/decoder.h",
     "src/wasm/function-body-decoder-impl.h",
     "src/wasm/function-body-decoder.cc",
@@ -2955,7 +2954,7 @@ v8_source_set("v8_base") {
   defines = []
   deps = [
     ":generate_bytecode_builtins_list",
-    ":torque_generated_core",
+    ":run_torque",
     ":v8_headers",
     ":v8_libbase",
     ":v8_libsampler",
@@ -2973,9 +2972,6 @@ v8_source_set("v8_base") {
     sources -= [
       "src/builtins/builtins-intl.cc",
       "src/char-predicates.cc",
-      "src/intl.cc",
-      "src/intl.h",
-      "src/objects/intl-objects-inl.h",
       "src/objects/intl-objects.cc",
       "src/objects/intl-objects.h",
       "src/objects/js-break-iterator-inl.h",
@@ -3808,7 +3804,7 @@ v8_source_set("wasm_module_runner") {
 
   deps = [
     ":generate_bytecode_builtins_list",
-    ":torque_generated_core",
+    ":run_torque",
   ]
 
   if (v8_enable_i18n_support) {
@@ -3892,7 +3888,7 @@ v8_source_set("lib_wasm_fuzzer_common") {
 
   deps = [
     ":generate_bytecode_builtins_list",
-    ":torque_generated_core",
+    ":run_torque",
   ]
 
   if (v8_enable_i18n_support) {

deps/v8/DEPS

@@ -13,11 +13,11 @@ vars = {
 
 deps = {
   'v8/build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '5839d1c9c67c68383d3fad086b081944ced52bfe',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + '6455acf1c78ab1f3a9be215adaa0fd7ce8017dea',
   'v8/third_party/depot_tools':
-    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '08faab99d41bd4f1f727267586ff28a227f80cd3',
+    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '98f1e59b41c6c580cd168ac4456bf27d78c12a95',
   'v8/third_party/icu':
-    Var('chromium_url') + '/chromium/deps/icu.git' + '@' + 'ccad4472126e35ccd1d19bea38b6675802d40472',
+    Var('chromium_url') + '/chromium/deps/icu.git' + '@' + 'b029971f1fc6b20d06887c47c7afebd5881f31ff',
   'v8/third_party/instrumented_libraries':
     Var('chromium_url') + '/chromium/src/third_party/instrumented_libraries.git' + '@' + 'a90cbf3b4216430a437991fb53ede8e048dea454',
   'v8/buildtools':
@@ -33,15 +33,15 @@ deps = {
     'condition': 'checkout_android',
   },
   'v8/third_party/catapult': {
-    'url': Var('chromium_url') + '/catapult.git' + '@' + '519565187c85418c6d1443ec24bd1012afdfb247',
+    'url': Var('chromium_url') + '/catapult.git' + '@' + 'b026043a43f9ce3f37c1cd57269f92cb8bee756c',
     'condition': 'checkout_android',
   },
   'v8/third_party/colorama/src': {
     'url': Var('chromium_url') + '/external/colorama.git' + '@' + '799604a1041e9b3bc5d2789ecbd7e8db2e18e6b8',
     'condition': 'checkout_android',
   },
   'v8/third_party/fuchsia-sdk': {
-    'url': Var('chromium_url') + '/chromium/src/third_party/fuchsia-sdk.git' + '@' + '6f8b55e35f7d48efdbfc3d8914e3e5e4c29a3ff3',
+    'url': Var('chromium_url') + '/chromium/src/third_party/fuchsia-sdk.git' + '@' + 'bac04339dfb1e41704eca419eb0196028a15b8c3',
     'condition': 'checkout_fuchsia',
   },
   'v8/third_party/googletest/src':
@@ -51,7 +51,7 @@ deps = {
   'v8/third_party/markupsafe':
     Var('chromium_url') + '/chromium/src/third_party/markupsafe.git' + '@' + '8f45f5cfa0009d2a70589bcda0349b8cb2b72783',
   'v8/tools/swarming_client':
-    Var('chromium_url') + '/infra/luci/client-py.git' + '@' + '486c9b53c4d54dd4b95bb6ce0e31160e600dfc11',
+    Var('chromium_url') + '/infra/luci/client-py.git' + '@' + 'f78187ab77127de42555afe0ad410bebde6ac6a5',
   'v8/test/benchmarks/data':
     Var('chromium_url') + '/v8/deps/third_party/benchmarks.git' + '@' + '05d7188267b4560491ff9155c5ee13e207ecd65f',
   'v8/test/mozilla/data':
@@ -84,8 +84,8 @@ deps = {
     Var('chromium_url') + '/chromium/src/tools/clang.git' + '@' + 'a245b955fe9cd620081ed267fae303c88d033fef',
   'v8/tools/luci-go':
     Var('chromium_url') + '/chromium/src/tools/luci-go.git' + '@' + '445d7c4b6a4f10e188edb395b132e3996b127691',
-  'v8/test/wasm-js':
-    Var('chromium_url') + '/external/github.com/WebAssembly/spec.git' + '@' + 'db9cd40808a90ecc5f4a23e88fb375c8f60b8d52',
+  'v8/test/wasm-js/data':
+    Var('chromium_url') + '/external/github.com/WebAssembly/spec.git' + '@' + '7e3c46a072a13fbfc871a3b78ddf7bd7e50a0ddd',
 }
 
 recursedeps = [

deps/v8/PRESUBMIT.py

@@ -458,19 +458,3 @@ def CheckChangeOnCommit(input_api, output_api):
         input_api, output_api,
         json_url='http://v8-status.appspot.com/current?format=json'))
   return results
-
-def PostUploadHook(cl, change, output_api):
-  """git cl upload will call this hook after the issue is created/modified.
-
-  This hook adds a noi18n bot if the patch affects Intl.
-  """
-  def affects_intl(f):
-    return 'intl' in f.LocalPath() or 'test262' in f.LocalPath()
-  if not change.AffectedFiles(file_filter=affects_intl):
-    return []
-  return output_api.EnsureCQIncludeTrybotsAreAdded(
-      cl,
-      [
-        'luci.v8.try:v8_linux_noi18n_rel_ng'
-      ],
-      'Automatically added noi18n trybots to run tests on CQ.')

deps/v8/WATCHLISTS

@@ -78,6 +78,10 @@
       'filepath': 'src/ast/' \
                   '|src/parsing/',
     },
+    'profiler': {
+      'filepath': 'src/profiler/' \
+                  '|src/libsampler/',
+    },
     'tracing': {
       'filepath': 'src/tracing/',
     },
@@ -123,7 +127,11 @@
       '[email protected]',
       '[email protected]',
     ],
+    'profiler': [
+      '[email protected]',
+    ],
     'tracing': [
+      '[email protected]',
       '[email protected]',
       '[email protected]',
     ],

deps/v8/benchmarks/micro/slice-perf.js

@@ -0,0 +1,83 @@
+// 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.
+
+const kIterations = 1000000;
+const kIterationShort = 10000;
+const kArraySize = 64;
+
+let smi_array = [];
+for (let i = 0; i < kArraySize; ++i) smi_array[i] = Math.floor(Math.random() * 100);
+
+let start = performance.now();
+for (let x = 0; x < kIterations; ++x) {
+  smi_array.slice(0);
+}
+let stop = performance.now();
+print("smi_array copy: " + (Math.floor((stop - start)*10)/10) + " ms");
+
+start = performance.now();
+for (let x = 0; x < kIterations; ++x) {
+  smi_array.slice(x % kArraySize);
+}
+stop = performance.now();
+print("smi_array: " + (Math.floor((stop - start)*10)/10) + " ms");
+
+let double_array = [];
+for (let i = 0; i < kArraySize; ++i) double_array[i] = Math.random() * 100;
+start = performance.now();
+for (let x = 0; x < kIterations; ++x) {
+  double_array.slice(x % kArraySize);
+}
+stop = performance.now();
+print("double_array: " + (Math.floor((stop - start)*10)/10) + " ms");
+
+let object_array = [];
+for (let i = 0; i < kArraySize; ++i) object_array[i] = new Object();
+start = performance.now();
+for (let x = 0; x < kIterations; ++x) {
+  object_array.slice(x % kArraySize);
+}
+stop = performance.now();
+print("object_array: " + (Math.floor((stop - start)*10)/10) + " ms");
+
+let dictionary_array = [];
+for (let i = 0; i < kArraySize; ++i) dictionary_array[i] = new Object();
+dictionary_array[100000] = new Object();
+start = performance.now();
+for (let x = 0; x < kIterationShort; ++x) {
+  dictionary_array.slice(x % kArraySize);
+}
+stop = performance.now();
+print("dictionary: " + (Math.floor((stop - start)*10)/10) + " ms");
+
+let arguments_array;
+function sloppy() {
+  arguments_array = arguments;
+}
+sloppy.apply(null, smi_array);
+start = performance.now();
+for (let x = 0; x < kIterations; ++x) {
+  let r = Array.prototype.slice.call(arguments_array, x % kArraySize);
+}
+stop = performance.now();
+print("arguments_array (sloppy): " + (Math.floor((stop - start)*10)/10) + " ms");
+
+function sloppy2 (a) {
+  arguments_array = arguments;
+}
+sloppy2.apply(null, smi_array);
+start = performance.now();
+for (let x = 0; x < kIterations; ++x) {
+  Array.prototype.slice.call(arguments_array, x % kArraySize);
+}
+stop = performance.now();
+print("arguments_array (fast aliased): " + (Math.floor((stop - start)*10)/10) + " ms");
+
+delete arguments_array[5];
+start = performance.now();
+for (let x = 0; x < kIterationShort; ++x) {
+  Array.prototype.slice.call(arguments_array, x % kArraySize);
+}
+stop = performance.now();
+print("arguments_array (slow aliased): " + (Math.floor((stop - start)*10)/10) + " ms");

deps/v8/include/OWNERS

@@ -5,6 +5,7 @@ [email protected]
 [email protected]
 [email protected]
 
+per-file v8-internal.h=file://OWNERS
 per-file [email protected]
 per-file [email protected]
 per-file [email protected]