Upgrade V8 to 3.5.8

Author: ry

deps/v8/ChangeLog

@@ -1,3 +1,14 @@
+2011-08-24: Version 3.5.8
+
+        Added V8EXPORT attributes for v8::Array::CheckCast and
+        v8::Number::CheckCast.
+
+        Made a slight API change enabling opting out from null termination
+        in String::Write*().
+
+        Fixed arm build for gcc-4.6.
+
+
 2011-08-22: Version 3.5.7
 
         Make scanner handle invalid unicode escapes in identifiers correctly.

deps/v8/include/v8-debug.h

@@ -1039,29 +1039,30 @@ class String : public Primitive {
    * \param length The number of characters to copy from the string.  For
    *    WriteUtf8 the number of bytes in the buffer.
    * \param nchars_ref The number of characters written, can be NULL.
-   * \param hints Various hints that might affect performance of this or
+   * \param options Various options that might affect performance of this or
    *    subsequent operations.
    * \return The number of characters copied to the buffer excluding the null
    *    terminator.  For WriteUtf8: The number of bytes copied to the buffer
-   *    including the null terminator.
+   *    including the null terminator (if written).
    */
-  enum WriteHints {
-    NO_HINTS = 0,
-    HINT_MANY_WRITES_EXPECTED = 1
+  enum WriteOptions {
+    NO_OPTIONS = 0,
+    HINT_MANY_WRITES_EXPECTED = 1,
+    NO_NULL_TERMINATION = 2
   };
 
   V8EXPORT int Write(uint16_t* buffer,
                      int start = 0,
                      int length = -1,
-                     WriteHints hints = NO_HINTS) const;  // UTF-16
+                     int options = NO_OPTIONS) const;  // UTF-16
   V8EXPORT int WriteAscii(char* buffer,
                           int start = 0,
                           int length = -1,
-                          WriteHints hints = NO_HINTS) const;  // ASCII
+                          int options = NO_OPTIONS) const;  // ASCII
   V8EXPORT int WriteUtf8(char* buffer,
                          int length = -1,
                          int* nchars_ref = NULL,
-                         WriteHints hints = NO_HINTS) const;  // UTF-8
+                         int options = NO_OPTIONS) const;  // UTF-8
 
   /**
    * A zero length string.
@@ -1335,7 +1336,7 @@ class Number : public Primitive {
   static inline Number* Cast(v8::Value* obj);
  private:
   V8EXPORT Number();
-  static void CheckCast(v8::Value* obj);
+  V8EXPORT static void CheckCast(v8::Value* obj);
 };
 
 
@@ -1709,7 +1710,7 @@ class Array : public Object {
   static inline Array* Cast(Value* obj);
  private:
   V8EXPORT Array();
-  static void CheckCast(Value* obj);
+  V8EXPORT static void CheckCast(Value* obj);
 };
 
 

deps/v8/include/v8.h

@@ -3621,15 +3621,15 @@ int String::Utf8Length() const {
 int String::WriteUtf8(char* buffer,
                       int capacity,
                       int* nchars_ref,
-                      WriteHints hints) const {
+                      int options) const {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::String::WriteUtf8()")) return 0;
   LOG_API(isolate, "String::WriteUtf8");
   ENTER_V8(isolate);
   i::StringInputBuffer& write_input_buffer = *isolate->write_input_buffer();
   i::Handle<i::String> str = Utils::OpenHandle(this);
   isolate->string_tracker()->RecordWrite(str);
-  if (hints & HINT_MANY_WRITES_EXPECTED) {
+  if (options & HINT_MANY_WRITES_EXPECTED) {
     // Flatten the string for efficiency.  This applies whether we are
     // using StringInputBuffer or Get(i) to access the characters.
     str->TryFlatten();
@@ -3669,7 +3669,8 @@ int String::WriteUtf8(char* buffer,
     }
   }
   if (nchars_ref != NULL) *nchars_ref = nchars;
-  if (i == len && (capacity == -1 || pos < capacity))
+  if (!(options & NO_NULL_TERMINATION) &&
+      (i == len && (capacity == -1 || pos < capacity)))
     buffer[pos++] = '\0';
   return pos;
 }
@@ -3678,7 +3679,7 @@ int String::WriteUtf8(char* buffer,
 int String::WriteAscii(char* buffer,
                        int start,
                        int length,
-                       WriteHints hints) const {
+                       int options) const {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::String::WriteAscii()")) return 0;
   LOG_API(isolate, "String::WriteAscii");
@@ -3687,7 +3688,7 @@ int String::WriteAscii(char* buffer,
   ASSERT(start >= 0 && length >= -1);
   i::Handle<i::String> str = Utils::OpenHandle(this);
   isolate->string_tracker()->RecordWrite(str);
-  if (hints & HINT_MANY_WRITES_EXPECTED) {
+  if (options & HINT_MANY_WRITES_EXPECTED) {
     // Flatten the string for efficiency.  This applies whether we are
     // using StringInputBuffer or Get(i) to access the characters.
     str->TryFlatten();
@@ -3703,7 +3704,7 @@ int String::WriteAscii(char* buffer,
     if (c == '\0') c = ' ';
     buffer[i] = c;
   }
-  if (length == -1 || i < length)
+  if (!(options & NO_NULL_TERMINATION) && (length == -1 || i < length))
     buffer[i] = '\0';
   return i;
 }
@@ -3712,15 +3713,15 @@ int String::WriteAscii(char* buffer,
 int String::Write(uint16_t* buffer,
                   int start,
                   int length,
-                  WriteHints hints) const {
+                  int options) const {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   if (IsDeadCheck(isolate, "v8::String::Write()")) return 0;
   LOG_API(isolate, "String::Write");
   ENTER_V8(isolate);
   ASSERT(start >= 0 && length >= -1);
   i::Handle<i::String> str = Utils::OpenHandle(this);
   isolate->string_tracker()->RecordWrite(str);
-  if (hints & HINT_MANY_WRITES_EXPECTED) {
+  if (options & HINT_MANY_WRITES_EXPECTED) {
     // Flatten the string for efficiency.  This applies whether we are
     // using StringInputBuffer or Get(i) to access the characters.
     str->TryFlatten();
@@ -3730,7 +3731,8 @@ int String::Write(uint16_t* buffer,
     end = str->length();
   if (end < 0) return 0;
   i::String::WriteToFlat(*str, buffer, start, end);
-  if (length == -1 || end - start < length) {
+  if (!(options & NO_NULL_TERMINATION) &&
+      (length == -1 || end - start < length)) {
     buffer[end - start] = '\0';
   }
   return end - start;
@@ -4118,7 +4120,7 @@ bool Context::InContext() {
 
 v8::Local<v8::Context> Context::GetEntered() {
   i::Isolate* isolate = i::Isolate::Current();
-  if (IsDeadCheck(isolate, "v8::Context::GetEntered()")) {
+  if (!EnsureInitializedForIsolate(isolate, "v8::Context::GetEntered()")) {
     return Local<Context>();
   }
   i::Handle<i::Object> last =

deps/v8/src/SConscript

@@ -377,6 +377,9 @@ class Operand BASE_EMBEDDED {
   // immediate
   INLINE(explicit Operand(int32_t immediate,
          RelocInfo::Mode rmode = RelocInfo::NONE));
+  INLINE(static Operand Zero()) {
+    return Operand(static_cast<int32_t>(0));
+  }
   INLINE(explicit Operand(const ExternalReference& f));
   explicit Operand(Handle<Object> handle);
   INLINE(explicit Operand(Smi* value));

deps/v8/src/api.cc

@@ -549,15 +549,15 @@ void FloatingPointHelper::ConvertIntToDouble(MacroAssembler* masm,
     // | s |   exp   |              mantissa               |
 
     // Check for zero.
-    __ cmp(int_scratch, Operand(0));
+    __ cmp(int_scratch, Operand::Zero());
     __ mov(dst2, int_scratch);
     __ mov(dst1, int_scratch);
     __ b(eq, &done);
 
     // Preload the sign of the value.
     __ and_(dst2, int_scratch, Operand(HeapNumber::kSignMask), SetCC);
     // Get the absolute value of the object (as an unsigned integer).
-    __ rsb(int_scratch, int_scratch, Operand(0), SetCC, mi);
+    __ rsb(int_scratch, int_scratch, Operand::Zero(), SetCC, mi);
 
     // Get mantisssa[51:20].
 
@@ -589,7 +589,7 @@ void FloatingPointHelper::ConvertIntToDouble(MacroAssembler* masm,
     __ mov(scratch2, Operand(int_scratch, LSL, scratch2));
     __ orr(dst2, dst2, scratch2);
     // Set dst1 to 0.
-    __ mov(dst1, Operand(0));
+    __ mov(dst1, Operand::Zero());
   }
   __ bind(&done);
 }
@@ -657,7 +657,7 @@ void FloatingPointHelper::LoadNumberAsInt32Double(MacroAssembler* masm,
     // Check for 0 and -0.
     __ bic(scratch1, dst1, Operand(HeapNumber::kSignMask));
     __ orr(scratch1, scratch1, Operand(dst2));
-    __ cmp(scratch1, Operand(0));
+    __ cmp(scratch1, Operand::Zero());
     __ b(eq, &done);
 
     // Check that the value can be exactly represented by a 32-bit integer.
@@ -730,7 +730,7 @@ void FloatingPointHelper::LoadNumberAsInt32(MacroAssembler* masm,
     // Check for 0 and -0.
     __ bic(dst, scratch1, Operand(HeapNumber::kSignMask));
     __ orr(dst, scratch2, Operand(dst));
-    __ cmp(dst, Operand(0));
+    __ cmp(dst, Operand::Zero());
     __ b(eq, &done);
 
     DoubleIs32BitInteger(masm, scratch1, scratch2, dst, scratch3, not_int32);
@@ -747,7 +747,7 @@ void FloatingPointHelper::LoadNumberAsInt32(MacroAssembler* masm,
     // Set the sign.
     __ ldr(scratch1, FieldMemOperand(object, HeapNumber::kExponentOffset));
     __ tst(scratch1, Operand(HeapNumber::kSignMask));
-    __ rsb(dst, dst, Operand(0), LeaveCC, mi);
+    __ rsb(dst, dst, Operand::Zero(), LeaveCC, mi);
   }
 
   __ bind(&done);
@@ -2424,7 +2424,6 @@ void BinaryOpStub::GenerateSmiCode(
   Register left = r1;
   Register right = r0;
   Register scratch1 = r7;
-  Register scratch2 = r9;
 
   // Perform combined smi check on both operands.
   __ orr(scratch1, left, Operand(right));
@@ -2618,7 +2617,7 @@ void BinaryOpStub::GenerateInt32Stub(MacroAssembler* masm) {
           __ b(mi, &return_heap_number);
           // Check for minus zero. Return heap number for minus zero.
           Label not_zero;
-          __ cmp(scratch1, Operand(0));
+          __ cmp(scratch1, Operand::Zero());
           __ b(ne, &not_zero);
           __ vmov(scratch2, d5.high());
           __ tst(scratch2, Operand(HeapNumber::kSignMask));
@@ -3110,7 +3109,6 @@ void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
 
     Label no_update;
     Label skip_cache;
-    const Register heap_number_map = r5;
 
     // Call C function to calculate the result and update the cache.
     // Register r0 holds precalculated cache entry address; preserve
@@ -3581,7 +3579,7 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
   ExternalReference js_entry_sp(Isolate::k_js_entry_sp_address, isolate);
   __ mov(r5, Operand(ExternalReference(js_entry_sp)));
   __ ldr(r6, MemOperand(r5));
-  __ cmp(r6, Operand(0));
+  __ cmp(r6, Operand::Zero());
   __ b(ne, &non_outermost_js);
   __ str(fp, MemOperand(r5));
   __ mov(ip, Operand(Smi::FromInt(StackFrame::OUTERMOST_JSENTRY_FRAME)));
@@ -3656,7 +3654,7 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
   __ pop(r5);
   __ cmp(r5, Operand(Smi::FromInt(StackFrame::OUTERMOST_JSENTRY_FRAME)));
   __ b(ne, &non_outermost_js_2);
-  __ mov(r6, Operand(0));
+  __ mov(r6, Operand::Zero());
   __ mov(r5, Operand(ExternalReference(js_entry_sp)));
   __ str(r6, MemOperand(r5));
   __ bind(&non_outermost_js_2);
@@ -3857,7 +3855,7 @@ void InstanceofStub::Generate(MacroAssembler* masm) {
     __ Push(r0, r1);
     __ InvokeBuiltin(Builtins::INSTANCE_OF, CALL_FUNCTION);
     __ LeaveInternalFrame();
-    __ cmp(r0, Operand(0));
+    __ cmp(r0, Operand::Zero());
     __ LoadRoot(r0, Heap::kTrueValueRootIndex, eq);
     __ LoadRoot(r0, Heap::kFalseValueRootIndex, ne);
     __ Ret(HasArgsInRegisters() ? 0 : 2);
@@ -3991,7 +3989,7 @@ void ArgumentsAccessStub::GenerateNewNonStrictFast(MacroAssembler* masm) {
       FixedArray::kHeaderSize + 2 * kPointerSize;
   // If there are no mapped parameters, we do not need the parameter_map.
   __ cmp(r1, Operand(Smi::FromInt(0)));
-  __ mov(r9, Operand(0), LeaveCC, eq);
+  __ mov(r9, Operand::Zero(), LeaveCC, eq);
   __ mov(r9, Operand(r1, LSL, 1), LeaveCC, ne);
   __ add(r9, r9, Operand(kParameterMapHeaderSize), LeaveCC, ne);
 
@@ -4015,7 +4013,7 @@ void ArgumentsAccessStub::GenerateNewNonStrictFast(MacroAssembler* masm) {
 
   __ ldr(r4, MemOperand(r8, Context::SlotOffset(Context::GLOBAL_INDEX)));
   __ ldr(r4, FieldMemOperand(r4, GlobalObject::kGlobalContextOffset));
-  __ cmp(r1, Operand(0));
+  __ cmp(r1, Operand::Zero());
   __ ldr(r4, MemOperand(r4, kNormalOffset), eq);
   __ ldr(r4, MemOperand(r4, kAliasedOffset), ne);
 
@@ -5697,7 +5695,7 @@ void StringCompareStub::GenerateAsciiCharsCompareLoop(
          Operand(SeqAsciiString::kHeaderSize - kHeapObjectTag));
   __ add(left, left, Operand(scratch1));
   __ add(right, right, Operand(scratch1));
-  __ rsb(length, length, Operand(0));
+  __ rsb(length, length, Operand::Zero());
   Register index = length;  // index = -length;
 
   // Compare loop.
@@ -6555,7 +6553,7 @@ void StringDictionaryLookupStub::Generate(MacroAssembler* masm) {
   // treated as a lookup success. For positive lookup probing failure
   // should be treated as lookup failure.
   if (mode_ == POSITIVE_LOOKUP) {
-    __ mov(result, Operand(0));
+    __ mov(result, Operand::Zero());
     __ Ret();
   }
 
@@ -6564,7 +6562,7 @@ void StringDictionaryLookupStub::Generate(MacroAssembler* masm) {
   __ Ret();
 
   __ bind(&not_in_dictionary);
-  __ mov(result, Operand(0));
+  __ mov(result, Operand::Zero());
   __ Ret();
 }
 

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

@@ -4129,11 +4129,8 @@ void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) {
     default: {
       VisitForAccumulatorValue(expr->right());
       Condition cond = eq;
-      bool strict = false;
       switch (op) {
         case Token::EQ_STRICT:
-          strict = true;
-          // Fall through
         case Token::EQ:
           cond = eq;
           __ pop(r1);

deps/v8/src/arm/code-stubs-arm.cc

@@ -1399,7 +1399,6 @@ LInstruction* LChunkBuilder::DoPower(HPower* instr) {
 
 LInstruction* LChunkBuilder::DoCompareGeneric(HCompareGeneric* instr) {
   Token::Value op = instr->token();
-  Representation r = instr->GetInputRepresentation();
   ASSERT(instr->left()->representation().IsTagged());
   ASSERT(instr->right()->representation().IsTagged());
   bool reversed = (op == Token::GT || op == Token::LTE);

deps/v8/src/arm/full-codegen-arm.cc

@@ -1804,7 +1804,6 @@ Condition LCodeGen::EmitIsObject(Register input,
 void LCodeGen::DoIsObjectAndBranch(LIsObjectAndBranch* instr) {
   Register reg = ToRegister(instr->InputAt(0));
   Register temp1 = ToRegister(instr->TempAt(0));
-  Register temp2 = scratch0();
 
   int true_block = chunk_->LookupDestination(instr->true_block_id());
   int false_block = chunk_->LookupDestination(instr->false_block_id());
@@ -2759,7 +2758,6 @@ void LCodeGen::DoOuterContext(LOuterContext* instr) {
 
 
 void LCodeGen::DoGlobalObject(LGlobalObject* instr) {
-  Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());
   __ ldr(result, ContextOperand(cp, Context::GLOBAL_INDEX));
 }
@@ -3965,7 +3963,6 @@ void LCodeGen::DoDoubleToI(LDoubleToI* instr) {
   Register scratch1 = scratch0();
   Register scratch2 = ToRegister(instr->TempAt(0));
   DwVfpRegister double_input = ToDoubleRegister(instr->InputAt(0));
-  DwVfpRegister double_scratch = double_scratch0();
   SwVfpRegister single_scratch = double_scratch0().low();
 
   Label done;

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

@@ -254,7 +254,6 @@ void LGapResolver::EmitMove(int index) {
     } else {
       ASSERT(destination->IsStackSlot());
       ASSERT(!in_cycle_);  // Constant moves happen after all cycles are gone.
-      MemOperand destination_operand = cgen_->ToMemOperand(destination);
       __ mov(kSavedValueRegister, source_operand);
       __ str(kSavedValueRegister, cgen_->ToMemOperand(destination));
     }
@@ -265,8 +264,7 @@ void LGapResolver::EmitMove(int index) {
       __ vmov(cgen_->ToDoubleRegister(destination), source_register);
     } else {
       ASSERT(destination->IsDoubleStackSlot());
-      MemOperand destination_operand = cgen_->ToMemOperand(destination);
-      __ vstr(source_register, destination_operand);
+      __ vstr(source_register, cgen_->ToMemOperand(destination));
     }
 
   } else if (source->IsDoubleStackSlot()) {

deps/v8/src/arm/lithium-codegen-arm.cc

@@ -1183,9 +1183,8 @@ void StubCompiler::GenerateLoadConstant(JSObject* object,
   __ JumpIfSmi(receiver, miss);
 
   // Check that the maps haven't changed.
-  Register reg =
-      CheckPrototypes(object, receiver, holder,
-                      scratch1, scratch2, scratch3, name, miss);
+  CheckPrototypes(object, receiver, holder, scratch1, scratch2, scratch3, name,
+                  miss);
 
   // Return the constant value.
   __ mov(r0, Operand(Handle<Object>(value)));