deps: upgrade V8 to 4.5.103.30

Pick up v8/v8@f9a0a16
Commit log at https://chromium.googlesource.com/v8/v8.git/+log/branch-heads/4.5

PR-URL: #2632
Reviewed-By: targos - Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: rvagg - Rod Vagg <rod@vagg.org>

deps/v8/BUILD.gn

@@ -1077,6 +1077,8 @@ source_set("v8_base") {
     "src/splay-tree.h",
     "src/splay-tree-inl.h",
     "src/snapshot/snapshot.h",
+    "src/startup-data-util.h",
+    "src/startup-data-util.cc",
     "src/string-builder.cc",
     "src/string-builder.h",
     "src/string-search.cc",
@@ -1678,8 +1680,6 @@ if ((current_toolchain == host_toolchain && v8_toolset_for_d8 == "host") ||
     sources = [
       "src/d8.cc",
       "src/d8.h",
-      "src/startup-data-util.h",
-      "src/startup-data-util.cc",
     ]
 
     configs -= [ "//build/config/compiler:chromium_code" ]

deps/v8/include/v8-version.h

@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 4
 #define V8_MINOR_VERSION 5
 #define V8_BUILD_NUMBER 103
-#define V8_PATCH_LEVEL 24
+#define V8_PATCH_LEVEL 30
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8/include/v8.h

@@ -6247,6 +6247,25 @@ class V8_EXPORT V8 {
    */
   static bool InitializeICU(const char* icu_data_file = NULL);
 
+  /**
+   * Initialize the external startup data. The embedder only needs to
+   * invoke this method when external startup data was enabled in a build.
+   *
+   * If V8 was compiled with the startup data in an external file, then
+   * V8 needs to be given those external files during startup. There are
+   * three ways to do this:
+   * - InitializeExternalStartupData(const char*)
+   *   This will look in the given directory for files "natives_blob.bin"
+   *   and "snapshot_blob.bin" - which is what the default build calls them.
+   * - InitializeExternalStartupData(const char*, const char*)
+   *   As above, but will directly use the two given file names.
+   * - Call SetNativesDataBlob, SetNativesDataBlob.
+   *   This will read the blobs from the given data structures and will
+   *   not perform any file IO.
+   */
+  static void InitializeExternalStartupData(const char* directory_path);
+  static void InitializeExternalStartupData(const char* natives_blob,
+                                            const char* snapshot_blob);
   /**
    * Sets the v8::Platform to use. This should be invoked before V8 is
    * initialized.

deps/v8/samples/hello-world.cc

@@ -25,6 +25,7 @@ class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
 int main(int argc, char* argv[]) {
   // Initialize V8.
   V8::InitializeICU();
+  V8::InitializeExternalStartupData(argv[0]);
   Platform* platform = platform::CreateDefaultPlatform();
   V8::InitializePlatform(platform);
   V8::Initialize();

deps/v8/samples/process.cc

@@ -686,6 +686,7 @@ void PrintMap(map<string, string>* m) {
 
 int main(int argc, char* argv[]) {
   v8::V8::InitializeICU();
+  v8::V8::InitializeExternalStartupData(argv[0]);
   v8::Platform* platform = v8::platform::CreateDefaultPlatform();
   v8::V8::InitializePlatform(platform);
   v8::V8::Initialize();

deps/v8/samples/shell.cc

@@ -75,6 +75,7 @@ class ShellArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
 
 int main(int argc, char* argv[]) {
   v8::V8::InitializeICU();
+  v8::V8::InitializeExternalStartupData(argv[0]);
   v8::Platform* platform = v8::platform::CreateDefaultPlatform();
   v8::V8::InitializePlatform(platform);
   v8::V8::Initialize();

deps/v8/src/api.cc

@@ -49,6 +49,7 @@
 #include "src/simulator.h"
 #include "src/snapshot/natives.h"
 #include "src/snapshot/snapshot.h"
+#include "src/startup-data-util.h"
 #include "src/unicode-inl.h"
 #include "src/v8threads.h"
 #include "src/version.h"
@@ -5398,11 +5399,23 @@ HeapObjectStatistics::HeapObjectStatistics()
       object_count_(0),
       object_size_(0) {}
 
+
 bool v8::V8::InitializeICU(const char* icu_data_file) {
   return i::InitializeICU(icu_data_file);
 }
 
 
+void v8::V8::InitializeExternalStartupData(const char* directory_path) {
+  i::InitializeExternalStartupData(directory_path);
+}
+
+
+void v8::V8::InitializeExternalStartupData(const char* natives_blob,
+                                           const char* snapshot_blob) {
+  i::InitializeExternalStartupData(natives_blob, snapshot_blob);
+}
+
+
 const char* v8::V8::GetVersion() {
   return i::Version::GetVersion();
 }

deps/v8/src/arm/assembler-arm.cc

@@ -128,7 +128,8 @@ void CpuFeatures::ProbeImpl(bool cross_compile) {
   if (FLAG_enable_32dregs && cpu.has_vfp3_d32()) supported_ |= 1u << VFP32DREGS;
 
   if (cpu.implementer() == base::CPU::NVIDIA &&
-      cpu.variant() == base::CPU::NVIDIA_DENVER) {
+      cpu.variant() == base::CPU::NVIDIA_DENVER &&
+      cpu.part() <= base::CPU::NVIDIA_DENVER_V10) {
     supported_ |= 1u << COHERENT_CACHE;
   }
 #endif

deps/v8/src/arm64/assembler-arm64.cc

@@ -53,7 +53,8 @@ void CpuFeatures::ProbeImpl(bool cross_compile) {
   // Probe for runtime features
   base::CPU cpu;
   if (cpu.implementer() == base::CPU::NVIDIA &&
-      cpu.variant() == base::CPU::NVIDIA_DENVER) {
+      cpu.variant() == base::CPU::NVIDIA_DENVER &&
+      cpu.part() <= base::CPU::NVIDIA_DENVER_V10) {
     supported_ |= 1u << COHERENT_CACHE;
   }
 }

deps/v8/src/base/cpu.h

@@ -59,6 +59,9 @@ class CPU final {
   static const int ARM_CORTEX_A12 = 0xc0c;
   static const int ARM_CORTEX_A15 = 0xc0f;
 
+  // Denver-specific part code
+  static const int NVIDIA_DENVER_V10 = 0x002;
+
   // PPC-specific part codes
   enum {
     PPC_POWER5,

deps/v8/src/d8.cc

@@ -50,10 +50,6 @@
 #include "src/v8.h"
 #endif  // !V8_SHARED
 
-#ifdef V8_USE_EXTERNAL_STARTUP_DATA
-#include "src/startup-data-util.h"
-#endif  // V8_USE_EXTERNAL_STARTUP_DATA
-
 #if !defined(_WIN32) && !defined(_WIN64)
 #include <unistd.h>  // NOLINT
 #else
@@ -2316,10 +2312,12 @@ int Shell::Main(int argc, char* argv[]) {
   g_platform = v8::platform::CreateDefaultPlatform();
   v8::V8::InitializePlatform(g_platform);
   v8::V8::Initialize();
-#ifdef V8_USE_EXTERNAL_STARTUP_DATA
-  v8::StartupDataHandler startup_data(argv[0], options.natives_blob,
-                                      options.snapshot_blob);
-#endif
+  if (options.natives_blob || options.snapshot_blob) {
+    v8::V8::InitializeExternalStartupData(options.natives_blob,
+                                          options.snapshot_blob);
+  } else {
+    v8::V8::InitializeExternalStartupData(argv[0]);
+  }
   SetFlagsFromString("--trace-hydrogen-file=hydrogen.cfg");
   SetFlagsFromString("--trace-turbo-cfg-file=turbo.cfg");
   SetFlagsFromString("--redirect-code-traces-to=code.asm");

deps/v8/src/d8.gyp

@@ -50,8 +50,6 @@
       'sources': [
         'd8.h',
         'd8.cc',
-        'startup-data-util.h',
-        'startup-data-util.cc'
       ],
       'conditions': [
         [ 'want_separate_host_toolset==1', {

deps/v8/src/heap/heap.cc

@@ -4867,19 +4867,6 @@ void Heap::ReduceNewSpaceSize() {
 }
 
 
-void Heap::FinalizeIncrementalMarkingIfComplete(const char* comment) {
-  if (FLAG_overapproximate_weak_closure &&
-      (incremental_marking()->IsReadyToOverApproximateWeakClosure() ||
-       (!incremental_marking()->weak_closure_was_overapproximated() &&
-        mark_compact_collector_.marking_deque()->IsEmpty()))) {
-    OverApproximateWeakClosure(comment);
-  } else if (incremental_marking()->IsComplete() ||
-             (mark_compact_collector_.marking_deque()->IsEmpty())) {
-    CollectAllGarbage(kNoGCFlags, comment);
-  }
-}
-
-
 bool Heap::TryFinalizeIdleIncrementalMarking(
     double idle_time_in_ms, size_t size_of_objects,
     size_t final_incremental_mark_compact_speed_in_bytes_per_ms) {

deps/v8/src/heap/heap.h

@@ -852,8 +852,6 @@ class Heap {
       intptr_t step_size_in_bytes, double deadline_in_ms,
       IncrementalMarking::StepActions step_actions);
 
-  void FinalizeIncrementalMarkingIfComplete(const char* comment);
-
   inline void increment_scan_on_scavenge_pages() {
     scan_on_scavenge_pages_++;
     if (FLAG_gc_verbose) {
@@ -1644,8 +1642,6 @@ class Heap {
   bool HasHighFragmentation();
   bool HasHighFragmentation(intptr_t used, intptr_t committed);
 
-  bool ShouldOptimizeForMemoryUsage() { return optimize_for_memory_usage_; }
-
  protected:
   // Methods made available to tests.
 

deps/v8/src/heap/memory-reducer.cc

@@ -44,35 +44,12 @@ void MemoryReducer::NotifyTimer(const Event& event) {
   if (state_.action == kRun) {
     DCHECK(heap()->incremental_marking()->IsStopped());
     DCHECK(FLAG_incremental_marking);
+    heap()->StartIdleIncrementalMarking();
     if (FLAG_trace_gc_verbose) {
       PrintIsolate(heap()->isolate(), "Memory reducer: started GC #%d\n",
                    state_.started_gcs);
     }
-    if (heap()->ShouldOptimizeForMemoryUsage()) {
-      // Do full GC if memory usage has higher priority than latency. This is
-      // important for background tabs that do not send idle notifications.
-      heap()->CollectAllGarbage(Heap::kReduceMemoryFootprintMask,
-                                "memory reducer");
-    } else {
-      heap()->StartIdleIncrementalMarking();
-    }
   } else if (state_.action == kWait) {
-    if (!heap()->incremental_marking()->IsStopped() &&
-        heap()->ShouldOptimizeForMemoryUsage()) {
-      // Make progress with pending incremental marking if memory usage has
-      // higher priority than latency. This is important for background tabs
-      // that do not send idle notifications.
-      const int kIncrementalMarkingDelayMs = 500;
-      double deadline = heap()->MonotonicallyIncreasingTimeInMs() +
-                        kIncrementalMarkingDelayMs;
-      heap()->AdvanceIncrementalMarking(
-          0, deadline, i::IncrementalMarking::StepActions(
-                           i::IncrementalMarking::NO_GC_VIA_STACK_GUARD,
-                           i::IncrementalMarking::FORCE_MARKING,
-                           i::IncrementalMarking::FORCE_COMPLETION));
-      heap()->FinalizeIncrementalMarkingIfComplete(
-          "Memory reducer: finalize incremental marking");
-    }
     // Re-schedule the timer.
     ScheduleTimer(state_.next_gc_start_ms - event.time_ms);
     if (FLAG_trace_gc_verbose) {

deps/v8/src/preparser.h

@@ -2939,6 +2939,7 @@ ParserBase<Traits>::ParseConditionalExpression(bool accept_IN,
   ExpressionT expression =
       this->ParseBinaryExpression(4, accept_IN, classifier, CHECK_OK);
   if (peek() != Token::CONDITIONAL) return expression;
+  ArrowFormalParametersUnexpectedToken(classifier);
   BindingPatternUnexpectedToken(classifier);
   Consume(Token::CONDITIONAL);
   // In parsing the first assignment expression in conditional
@@ -2964,6 +2965,7 @@ ParserBase<Traits>::ParseBinaryExpression(int prec, bool accept_IN,
     // prec1 >= 4
     while (Precedence(peek(), accept_IN) == prec1) {
       BindingPatternUnexpectedToken(classifier);
+      ArrowFormalParametersUnexpectedToken(classifier);
       Token::Value op = Next();
       Scanner::Location op_location = scanner()->location();
       int pos = position();
@@ -3026,6 +3028,7 @@ ParserBase<Traits>::ParseUnaryExpression(ExpressionClassifier* classifier,
   Token::Value op = peek();
   if (Token::IsUnaryOp(op)) {
     BindingPatternUnexpectedToken(classifier);
+    ArrowFormalParametersUnexpectedToken(classifier);
 
     op = Next();
     int pos = position();
@@ -3048,6 +3051,7 @@ ParserBase<Traits>::ParseUnaryExpression(ExpressionClassifier* classifier,
     return this->BuildUnaryExpression(expression, op, pos, factory());
   } else if (Token::IsCountOp(op)) {
     BindingPatternUnexpectedToken(classifier);
+    ArrowFormalParametersUnexpectedToken(classifier);
     op = Next();
     Scanner::Location lhs_location = scanner()->peek_location();
     ExpressionT expression = this->ParseUnaryExpression(classifier, CHECK_OK);
@@ -3080,6 +3084,7 @@ ParserBase<Traits>::ParsePostfixExpression(ExpressionClassifier* classifier,
   if (!scanner()->HasAnyLineTerminatorBeforeNext() &&
       Token::IsCountOp(peek())) {
     BindingPatternUnexpectedToken(classifier);
+    ArrowFormalParametersUnexpectedToken(classifier);
 
     expression = this->CheckAndRewriteReferenceExpression(
         expression, lhs_location, MessageTemplate::kInvalidLhsInPostfixOp,
@@ -3111,6 +3116,7 @@ ParserBase<Traits>::ParseLeftHandSideExpression(
     switch (peek()) {
       case Token::LBRACK: {
         BindingPatternUnexpectedToken(classifier);
+        ArrowFormalParametersUnexpectedToken(classifier);
         Consume(Token::LBRACK);
         int pos = position();
         ExpressionT index = ParseExpression(true, classifier, CHECK_OK);
@@ -3121,6 +3127,7 @@ ParserBase<Traits>::ParseLeftHandSideExpression(
 
       case Token::LPAREN: {
         BindingPatternUnexpectedToken(classifier);
+        ArrowFormalParametersUnexpectedToken(classifier);
 
         if (is_strong(language_mode()) && this->IsIdentifier(result) &&
             this->IsEval(this->AsIdentifier(result))) {
@@ -3172,6 +3179,7 @@ ParserBase<Traits>::ParseLeftHandSideExpression(
 
       case Token::PERIOD: {
         BindingPatternUnexpectedToken(classifier);
+        ArrowFormalParametersUnexpectedToken(classifier);
         Consume(Token::PERIOD);
         int pos = position();
         IdentifierT name = ParseIdentifierName(CHECK_OK);
@@ -3184,6 +3192,7 @@ ParserBase<Traits>::ParseLeftHandSideExpression(
       case Token::TEMPLATE_SPAN:
       case Token::TEMPLATE_TAIL: {
         BindingPatternUnexpectedToken(classifier);
+        ArrowFormalParametersUnexpectedToken(classifier);
         result = ParseTemplateLiteral(result, position(), classifier, CHECK_OK);
         break;
       }
@@ -3221,6 +3230,7 @@ ParserBase<Traits>::ParseMemberWithNewPrefixesExpression(
 
   if (peek() == Token::NEW) {
     BindingPatternUnexpectedToken(classifier);
+    ArrowFormalParametersUnexpectedToken(classifier);
     Consume(Token::NEW);
     int new_pos = position();
     ExpressionT result = this->EmptyExpression();
@@ -3274,6 +3284,7 @@ ParserBase<Traits>::ParseMemberExpression(ExpressionClassifier* classifier,
   ExpressionT result = this->EmptyExpression();
   if (peek() == Token::FUNCTION) {
     BindingPatternUnexpectedToken(classifier);
+    ArrowFormalParametersUnexpectedToken(classifier);
 
     Consume(Token::FUNCTION);
     int function_token_position = position();
@@ -3523,6 +3534,7 @@ ParserBase<Traits>::ParseMemberExpressionContinuation(
     switch (peek()) {
       case Token::LBRACK: {
         BindingPatternUnexpectedToken(classifier);
+        ArrowFormalParametersUnexpectedToken(classifier);
 
         Consume(Token::LBRACK);
         int pos = position();
@@ -3536,6 +3548,7 @@ ParserBase<Traits>::ParseMemberExpressionContinuation(
       }
       case Token::PERIOD: {
         BindingPatternUnexpectedToken(classifier);
+        ArrowFormalParametersUnexpectedToken(classifier);
 
         Consume(Token::PERIOD);
         int pos = position();
@@ -3550,6 +3563,7 @@ ParserBase<Traits>::ParseMemberExpressionContinuation(
       case Token::TEMPLATE_SPAN:
       case Token::TEMPLATE_TAIL: {
         BindingPatternUnexpectedToken(classifier);
+        ArrowFormalParametersUnexpectedToken(classifier);
         int pos;
         if (scanner()->current_token() == Token::IDENTIFIER) {
           pos = position();