Upgrade to V8 3.3
Merge V8 at 3.3.10.39
Simple merge required updates to makefiles only.
Bug: 5688872
Change-Id: I14703f418235f5ce6013b9b3e2e502407a9f6dfd
diff --git a/src/x64/code-stubs-x64.h b/src/x64/code-stubs-x64.h
index f97d099..2774403 100644
--- a/src/x64/code-stubs-x64.h
+++ b/src/x64/code-stubs-x64.h
@@ -71,21 +71,113 @@
};
-class TypeRecordingBinaryOpStub: public CodeStub {
+class UnaryOpStub: public CodeStub {
public:
- TypeRecordingBinaryOpStub(Token::Value op, OverwriteMode mode)
+ UnaryOpStub(Token::Value op, UnaryOverwriteMode mode)
: op_(op),
mode_(mode),
- operands_type_(TRBinaryOpIC::UNINITIALIZED),
- result_type_(TRBinaryOpIC::UNINITIALIZED),
+ operand_type_(UnaryOpIC::UNINITIALIZED),
+ name_(NULL) {
+ }
+
+ UnaryOpStub(
+ int key,
+ UnaryOpIC::TypeInfo operand_type)
+ : op_(OpBits::decode(key)),
+ mode_(ModeBits::decode(key)),
+ operand_type_(operand_type),
+ name_(NULL) {
+ }
+
+ private:
+ Token::Value op_;
+ UnaryOverwriteMode mode_;
+
+ // Operand type information determined at runtime.
+ UnaryOpIC::TypeInfo operand_type_;
+
+ char* name_;
+
+ const char* GetName();
+
+#ifdef DEBUG
+ void Print() {
+ PrintF("UnaryOpStub %d (op %s), "
+ "(mode %d, runtime_type_info %s)\n",
+ MinorKey(),
+ Token::String(op_),
+ static_cast<int>(mode_),
+ UnaryOpIC::GetName(operand_type_));
+ }
+#endif
+
+ class ModeBits: public BitField<UnaryOverwriteMode, 0, 1> {};
+ class OpBits: public BitField<Token::Value, 1, 7> {};
+ class OperandTypeInfoBits: public BitField<UnaryOpIC::TypeInfo, 8, 3> {};
+
+ Major MajorKey() { return UnaryOp; }
+ int MinorKey() {
+ return ModeBits::encode(mode_)
+ | OpBits::encode(op_)
+ | OperandTypeInfoBits::encode(operand_type_);
+ }
+
+ // Note: A lot of the helper functions below will vanish when we use virtual
+ // function instead of switch more often.
+ void Generate(MacroAssembler* masm);
+
+ void GenerateTypeTransition(MacroAssembler* masm);
+
+ void GenerateSmiStub(MacroAssembler* masm);
+ void GenerateSmiStubSub(MacroAssembler* masm);
+ void GenerateSmiStubBitNot(MacroAssembler* masm);
+ void GenerateSmiCodeSub(MacroAssembler* masm,
+ Label* non_smi,
+ Label* slow,
+ Label::Distance non_smi_near = Label::kFar,
+ Label::Distance slow_near = Label::kFar);
+ void GenerateSmiCodeBitNot(MacroAssembler* masm,
+ Label* non_smi,
+ Label::Distance non_smi_near);
+
+ void GenerateHeapNumberStub(MacroAssembler* masm);
+ void GenerateHeapNumberStubSub(MacroAssembler* masm);
+ void GenerateHeapNumberStubBitNot(MacroAssembler* masm);
+ void GenerateHeapNumberCodeSub(MacroAssembler* masm, Label* slow);
+ void GenerateHeapNumberCodeBitNot(MacroAssembler* masm, Label* slow);
+
+ void GenerateGenericStub(MacroAssembler* masm);
+ void GenerateGenericStubSub(MacroAssembler* masm);
+ void GenerateGenericStubBitNot(MacroAssembler* masm);
+ void GenerateGenericCodeFallback(MacroAssembler* masm);
+
+ virtual int GetCodeKind() { return Code::UNARY_OP_IC; }
+
+ virtual InlineCacheState GetICState() {
+ return UnaryOpIC::ToState(operand_type_);
+ }
+
+ virtual void FinishCode(Code* code) {
+ code->set_unary_op_type(operand_type_);
+ }
+};
+
+
+class BinaryOpStub: public CodeStub {
+ public:
+ BinaryOpStub(Token::Value op, OverwriteMode mode)
+ : op_(op),
+ mode_(mode),
+ operands_type_(BinaryOpIC::UNINITIALIZED),
+ result_type_(BinaryOpIC::UNINITIALIZED),
name_(NULL) {
ASSERT(OpBits::is_valid(Token::NUM_TOKENS));
}
- TypeRecordingBinaryOpStub(
+ BinaryOpStub(
int key,
- TRBinaryOpIC::TypeInfo operands_type,
- TRBinaryOpIC::TypeInfo result_type = TRBinaryOpIC::UNINITIALIZED)
+ BinaryOpIC::TypeInfo operands_type,
+ BinaryOpIC::TypeInfo result_type = BinaryOpIC::UNINITIALIZED)
: op_(OpBits::decode(key)),
mode_(ModeBits::decode(key)),
operands_type_(operands_type),
@@ -102,8 +194,8 @@
OverwriteMode mode_;
// Operand type information determined at runtime.
- TRBinaryOpIC::TypeInfo operands_type_;
- TRBinaryOpIC::TypeInfo result_type_;
+ BinaryOpIC::TypeInfo operands_type_;
+ BinaryOpIC::TypeInfo result_type_;
char* name_;
@@ -111,22 +203,22 @@
#ifdef DEBUG
void Print() {
- PrintF("TypeRecordingBinaryOpStub %d (op %s), "
+ PrintF("BinaryOpStub %d (op %s), "
"(mode %d, runtime_type_info %s)\n",
MinorKey(),
Token::String(op_),
static_cast<int>(mode_),
- TRBinaryOpIC::GetName(operands_type_));
+ BinaryOpIC::GetName(operands_type_));
}
#endif
// Minor key encoding in 15 bits RRRTTTOOOOOOOMM.
class ModeBits: public BitField<OverwriteMode, 0, 2> {};
class OpBits: public BitField<Token::Value, 2, 7> {};
- class OperandTypeInfoBits: public BitField<TRBinaryOpIC::TypeInfo, 9, 3> {};
- class ResultTypeInfoBits: public BitField<TRBinaryOpIC::TypeInfo, 12, 3> {};
+ class OperandTypeInfoBits: public BitField<BinaryOpIC::TypeInfo, 9, 3> {};
+ class ResultTypeInfoBits: public BitField<BinaryOpIC::TypeInfo, 12, 3> {};
- Major MajorKey() { return TypeRecordingBinaryOp; }
+ Major MajorKey() { return BinaryOp; }
int MinorKey() {
return OpBits::encode(op_)
| ModeBits::encode(mode_)
@@ -152,6 +244,7 @@
void GenerateHeapNumberStub(MacroAssembler* masm);
void GenerateOddballStub(MacroAssembler* masm);
void GenerateStringStub(MacroAssembler* masm);
+ void GenerateBothStringStub(MacroAssembler* masm);
void GenerateGenericStub(MacroAssembler* masm);
void GenerateHeapResultAllocation(MacroAssembler* masm, Label* alloc_failure);
@@ -159,15 +252,15 @@
void GenerateTypeTransition(MacroAssembler* masm);
void GenerateTypeTransitionWithSavedArgs(MacroAssembler* masm);
- virtual int GetCodeKind() { return Code::TYPE_RECORDING_BINARY_OP_IC; }
+ virtual int GetCodeKind() { return Code::BINARY_OP_IC; }
virtual InlineCacheState GetICState() {
- return TRBinaryOpIC::ToState(operands_type_);
+ return BinaryOpIC::ToState(operands_type_);
}
virtual void FinishCode(Code* code) {
- code->set_type_recording_binary_op_type(operands_type_);
- code->set_type_recording_binary_op_result_type(result_type_);
+ code->set_binary_op_type(operands_type_);
+ code->set_binary_op_result_type(result_type_);
}
friend class CodeGenerator;
@@ -276,10 +369,9 @@
class StringCompareStub: public CodeStub {
public:
- explicit StringCompareStub() {}
+ StringCompareStub() {}
- // Compare two flat ascii strings and returns result in rax after popping two
- // arguments from the stack.
+ // Compares two flat ASCII strings and returns result in rax.
static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm,
Register left,
Register right,
@@ -288,11 +380,27 @@
Register scratch3,
Register scratch4);
- private:
- Major MajorKey() { return StringCompare; }
- int MinorKey() { return 0; }
+ // Compares two flat ASCII strings for equality and returns result
+ // in rax.
+ static void GenerateFlatAsciiStringEquals(MacroAssembler* masm,
+ Register left,
+ Register right,
+ Register scratch1,
+ Register scratch2);
- void Generate(MacroAssembler* masm);
+ private:
+ virtual Major MajorKey() { return StringCompare; }
+ virtual int MinorKey() { return 0; }
+ virtual void Generate(MacroAssembler* masm);
+
+ static void GenerateAsciiCharsCompareLoop(
+ MacroAssembler* masm,
+ Register left,
+ Register right,
+ Register length,
+ Register scratch,
+ Label* chars_not_equal,
+ Label::Distance near_jump = Label::kFar);
};
@@ -333,6 +441,74 @@
};
+class StringDictionaryLookupStub: public CodeStub {
+ public:
+ enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP };
+
+ StringDictionaryLookupStub(Register dictionary,
+ Register result,
+ Register index,
+ LookupMode mode)
+ : dictionary_(dictionary), result_(result), index_(index), mode_(mode) { }
+
+ void Generate(MacroAssembler* masm);
+
+ MUST_USE_RESULT static MaybeObject* GenerateNegativeLookup(
+ MacroAssembler* masm,
+ Label* miss,
+ Label* done,
+ Register properties,
+ String* name,
+ Register r0);
+
+ static void GeneratePositiveLookup(MacroAssembler* masm,
+ Label* miss,
+ Label* done,
+ Register elements,
+ Register name,
+ Register r0,
+ Register r1);
+
+ private:
+ static const int kInlinedProbes = 4;
+ static const int kTotalProbes = 20;
+
+ static const int kCapacityOffset =
+ StringDictionary::kHeaderSize +
+ StringDictionary::kCapacityIndex * kPointerSize;
+
+ static const int kElementsStartOffset =
+ StringDictionary::kHeaderSize +
+ StringDictionary::kElementsStartIndex * kPointerSize;
+
+
+#ifdef DEBUG
+ void Print() {
+ PrintF("StringDictionaryLookupStub\n");
+ }
+#endif
+
+ Major MajorKey() { return StringDictionaryNegativeLookup; }
+
+ int MinorKey() {
+ return DictionaryBits::encode(dictionary_.code()) |
+ ResultBits::encode(result_.code()) |
+ IndexBits::encode(index_.code()) |
+ LookupModeBits::encode(mode_);
+ }
+
+ class DictionaryBits: public BitField<int, 0, 4> {};
+ class ResultBits: public BitField<int, 4, 4> {};
+ class IndexBits: public BitField<int, 8, 4> {};
+ class LookupModeBits: public BitField<LookupMode, 12, 1> {};
+
+ Register dictionary_;
+ Register result_;
+ Register index_;
+ LookupMode mode_;
+};
+
+
} } // namespace v8::internal
#endif // V8_X64_CODE_STUBS_X64_H_