deps: update V8 to 5.4.500.27

Pick up latest commit from the 5.4-lkgr branch.

deps: edit V8 gitignore to allow trace event copy
deps: update V8 trace event to 315bf1e2d45be7d53346c31cfcc37424a32c30c8
deps: edit V8 gitignore to allow gtest_prod.h copy
deps: update V8 gtest to 6f8a66431cb592dad629028a50b3dd418a408c87

PR-URL: https://github.com/nodejs/node/pull/8317
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

1 files changed, 3 insertions, 34 deletions

diff --git a/deps/v8/src/arm/assembler-arm-inl.h b/deps/v8/src/arm/assembler-arm-inl.h
index b0b22b63c2..b1f33e009e 100644
--- a/deps/v8/src/arm/assembler-arm-inl.h
+++ b/deps/v8/src/arm/assembler-arm-inl.h
@@ -46,9 +46,9 @@
 namespace v8 {
 namespace internal {
 
-
 bool CpuFeatures::SupportsCrankshaft() { return IsSupported(VFP3); }
 
+bool CpuFeatures::SupportsSimd128() { return false; }
 
 int DoubleRegister::NumRegisters() {
   return CpuFeatures::IsSupported(VFP32DREGS) ? 32 : 16;
@@ -71,11 +71,6 @@ Address RelocInfo::target_address() {
   return Assembler::target_address_at(pc_, host_);
 }
 
-Address RelocInfo::wasm_memory_reference() {
-  DCHECK(IsWasmMemoryReference(rmode_));
-  return Assembler::target_address_at(pc_, host_);
-}
-
 Address RelocInfo::target_address_address() {
   DCHECK(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_)
                               || rmode_ == EMBEDDED_OBJECT
@@ -104,33 +99,6 @@ int RelocInfo::target_address_size() {
 }
 
 
-void RelocInfo::set_target_address(Address target,
-                                   WriteBarrierMode write_barrier_mode,
-                                   ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_));
-  Assembler::set_target_address_at(isolate_, pc_, host_, target,
-                                   icache_flush_mode);
-  if (write_barrier_mode == UPDATE_WRITE_BARRIER &&
-      host() != NULL && IsCodeTarget(rmode_)) {
-    Object* target_code = Code::GetCodeFromTargetAddress(target);
-    host()->GetHeap()->incremental_marking()->RecordWriteIntoCode(
-        host(), this, HeapObject::cast(target_code));
-  }
-}
-
-void RelocInfo::update_wasm_memory_reference(
-    Address old_base, Address new_base, size_t old_size, size_t new_size,
-    ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsWasmMemoryReference(rmode_));
-  DCHECK(old_base <= wasm_memory_reference() &&
-         wasm_memory_reference() < old_base + old_size);
-  Address updated_reference = new_base + (wasm_memory_reference() - old_base);
-  DCHECK(new_base <= updated_reference &&
-         updated_reference < new_base + new_size);
-  Assembler::set_target_address_at(isolate_, pc_, host_, updated_reference,
-                                   icache_flush_mode);
-}
-
 Object* RelocInfo::target_object() {
   DCHECK(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
   return reinterpret_cast<Object*>(Assembler::target_address_at(pc_, host_));
@@ -156,6 +124,7 @@ void RelocInfo::set_target_object(Object* target,
       target->IsHeapObject()) {
     host()->GetHeap()->incremental_marking()->RecordWriteIntoCode(
         host(), this, HeapObject::cast(target));
+    host()->GetHeap()->RecordWriteIntoCode(host(), this, target);
   }
 }
 
@@ -276,7 +245,7 @@ void RelocInfo::WipeOut() {
   }
 }
 
-
+template <typename ObjectVisitor>
 void RelocInfo::Visit(Isolate* isolate, ObjectVisitor* visitor) {
   RelocInfo::Mode mode = rmode();
   if (mode == RelocInfo::EMBEDDED_OBJECT) {