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Unified Diff: src/hydrogen-instructions.h

Issue 24544002: Macrofication of HInstruction constructors with context argument. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 3 months ago
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Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 7e5272e218e6a32eebaa847a21d6369319b74bc9..3c197a9eae7a8dc688cb8f00d94e75d9f6481207 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -1051,6 +1051,47 @@ class HValue : public ZoneObject {
return new(zone) I(p1, p2, p3, p4, p5); \
}
+#define DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P0(I) \
+ static I* New(Zone* zone, HValue* context) { \
+ return new(zone) I(context); \
+ }
+
+#define DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P1(I, P1) \
+ static I* New(Zone* zone, HValue* context, P1 p1) { \
+ return new(zone) I(context, p1); \
+ }
+
+#define DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(I, P1, P2) \
+ static I* New(Zone* zone, HValue* context, P1 p1, P2 p2) { \
+ return new(zone) I(context, p1, p2); \
+ }
+
+#define DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(I, P1, P2, P3) \
+ static I* New(Zone* zone, HValue* context, P1 p1, P2 p2, P3 p3) { \
+ return new(zone) I(context, p1, p2, p3); \
+ }
+
+#define DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(I, P1, P2, P3, P4) \
+ static I* New(Zone* zone, \
+ HValue* context, \
+ P1 p1, \
+ P2 p2, \
+ P3 p3, \
+ P4 p4) { \
+ return new(zone) I(context, p1, p2, p3, p4); \
+ }
+
+#define DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P5(I, P1, P2, P3, P4, P5) \
+ static I* New(Zone* zone, \
+ HValue* context, \
+ P1 p1, \
+ P2 p2, \
+ P3 p3, \
+ P4 p4, \
+ P5 p5) { \
+ return new(zone) I(context, p1, p2, p3, p4, p5); \
+ }
+
class HInstruction : public HValue {
public:
@@ -1392,18 +1433,8 @@ class HContext V8_FINAL : public HTemplateInstruction<0> {
class HReturn V8_FINAL : public HTemplateControlInstruction<0, 3> {
public:
- static HInstruction* New(Zone* zone,
- HValue* context,
- HValue* value,
- HValue* parameter_count) {
- return new(zone) HReturn(value, context, parameter_count);
- }
-
- static HInstruction* New(Zone* zone,
- HValue* context,
- HValue* value) {
- return new(zone) HReturn(value, context, 0);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HReturn, HValue*, HValue*);
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P1(HReturn, HValue*);
virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
return Representation::Tagged();
@@ -1418,7 +1449,7 @@ class HReturn V8_FINAL : public HTemplateControlInstruction<0, 3> {
DECLARE_CONCRETE_INSTRUCTION(Return)
private:
- HReturn(HValue* value, HValue* context, HValue* parameter_count) {
+ HReturn(HValue* context, HValue* value, HValue* parameter_count = 0) {
SetOperandAt(0, value);
SetOperandAt(1, context);
SetOperandAt(2, parameter_count);
@@ -1444,11 +1475,7 @@ class HUnaryOperation : public HTemplateInstruction<1> {
class HThrow V8_FINAL : public HTemplateInstruction<2> {
public:
- static HThrow* New(Zone* zone,
- HValue* context,
- HValue* value) {
- return new(zone) HThrow(context, value);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P1(HThrow, HValue*);
virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
return Representation::Tagged();
@@ -1749,7 +1776,7 @@ class HStackCheck V8_FINAL : public HTemplateInstruction<1> {
kBackwardsBranch
};
- DECLARE_INSTRUCTION_FACTORY_P2(HStackCheck, HValue*, Type);
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P1(HStackCheck, Type);
HValue* context() { return OperandAt(0); }
@@ -1939,22 +1966,9 @@ class HOuterContext V8_FINAL : public HUnaryOperation {
class HDeclareGlobals V8_FINAL : public HUnaryOperation {
public:
- HDeclareGlobals(HValue* context,
- Handle<FixedArray> pairs,
- int flags)
- : HUnaryOperation(context),
- pairs_(pairs),
- flags_(flags) {
- set_representation(Representation::Tagged());
- SetAllSideEffects();
- }
-
- static HDeclareGlobals* New(Zone* zone,
- HValue* context,
- Handle<FixedArray> pairs,
- int flags) {
- return new(zone) HDeclareGlobals(context, pairs, flags);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HDeclareGlobals,
+ Handle<FixedArray>,
+ int);
HValue* context() { return OperandAt(0); }
Handle<FixedArray> pairs() const { return pairs_; }
@@ -1967,6 +1981,16 @@ class HDeclareGlobals V8_FINAL : public HUnaryOperation {
}
private:
+ HDeclareGlobals(HValue* context,
+ Handle<FixedArray> pairs,
+ int flags)
+ : HUnaryOperation(context),
+ pairs_(pairs),
+ flags_(flags) {
+ set_representation(Representation::Tagged());
+ SetAllSideEffects();
+ }
+
Handle<FixedArray> pairs_;
int flags_;
};
@@ -2083,16 +2107,7 @@ class HBinaryCall : public HCall<2> {
class HInvokeFunction V8_FINAL : public HBinaryCall {
public:
- HInvokeFunction(HValue* context, HValue* function, int argument_count)
- : HBinaryCall(context, function, argument_count) {
- }
-
- static HInvokeFunction* New(Zone* zone,
- HValue* context,
- HValue* function,
- int argument_count) {
- return new(zone) HInvokeFunction(context, function, argument_count);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HInvokeFunction, HValue*, int);
HInvokeFunction(HValue* context,
HValue* function,
@@ -2121,6 +2136,10 @@ class HInvokeFunction V8_FINAL : public HBinaryCall {
DECLARE_CONCRETE_INSTRUCTION(InvokeFunction)
private:
+ HInvokeFunction(HValue* context, HValue* function, int argument_count)
+ : HBinaryCall(context, function, argument_count) {
+ }
+
Handle<JSFunction> known_function_;
int formal_parameter_count_;
};
@@ -2128,10 +2147,9 @@ class HInvokeFunction V8_FINAL : public HBinaryCall {
class HCallConstantFunction V8_FINAL : public HCall<0> {
public:
- HCallConstantFunction(Handle<JSFunction> function, int argument_count)
- : HCall<0>(argument_count),
- function_(function),
- formal_parameter_count_(function->shared()->formal_parameter_count()) {}
+ DECLARE_INSTRUCTION_FACTORY_P2(HCallConstantFunction,
+ Handle<JSFunction>,
+ int);
Handle<JSFunction> function() const { return function_; }
int formal_parameter_count() const { return formal_parameter_count_; }
@@ -2150,6 +2168,11 @@ class HCallConstantFunction V8_FINAL : public HCall<0> {
DECLARE_CONCRETE_INSTRUCTION(CallConstantFunction)
private:
+ HCallConstantFunction(Handle<JSFunction> function, int argument_count)
+ : HCall<0>(argument_count),
+ function_(function),
+ formal_parameter_count_(function->shared()->formal_parameter_count()) {}
+
Handle<JSFunction> function_;
int formal_parameter_count_;
};
@@ -2157,22 +2180,23 @@ class HCallConstantFunction V8_FINAL : public HCall<0> {
class HCallKeyed V8_FINAL : public HBinaryCall {
public:
- HCallKeyed(HValue* context, HValue* key, int argument_count)
- : HBinaryCall(context, key, argument_count) {
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallKeyed, HValue*, int);
HValue* context() { return first(); }
HValue* key() { return second(); }
DECLARE_CONCRETE_INSTRUCTION(CallKeyed)
+
+ private:
+ HCallKeyed(HValue* context, HValue* key, int argument_count)
+ : HBinaryCall(context, key, argument_count) {
+ }
};
class HCallNamed V8_FINAL : public HUnaryCall {
public:
- HCallNamed(HValue* context, Handle<String> name, int argument_count)
- : HUnaryCall(context, argument_count), name_(name) {
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallNamed, Handle<String>, int);
virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
@@ -2182,42 +2206,33 @@ class HCallNamed V8_FINAL : public HUnaryCall {
DECLARE_CONCRETE_INSTRUCTION(CallNamed)
private:
+ HCallNamed(HValue* context, Handle<String> name, int argument_count)
+ : HUnaryCall(context, argument_count), name_(name) {
+ }
+
Handle<String> name_;
};
class HCallFunction V8_FINAL : public HBinaryCall {
public:
- HCallFunction(HValue* context, HValue* function, int argument_count)
- : HBinaryCall(context, function, argument_count) {
- }
-
- static HCallFunction* New(Zone* zone,
- HValue* context,
- HValue* function,
- int argument_count) {
- return new(zone) HCallFunction(context, function, argument_count);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallFunction, HValue*, int);
HValue* context() { return first(); }
HValue* function() { return second(); }
DECLARE_CONCRETE_INSTRUCTION(CallFunction)
+
+ private:
+ HCallFunction(HValue* context, HValue* function, int argument_count)
+ : HBinaryCall(context, function, argument_count) {
+ }
};
class HCallGlobal V8_FINAL : public HUnaryCall {
public:
- HCallGlobal(HValue* context, Handle<String> name, int argument_count)
- : HUnaryCall(context, argument_count), name_(name) {
- }
-
- static HCallGlobal* New(Zone* zone,
- HValue* context,
- Handle<String> name,
- int argument_count) {
- return new(zone) HCallGlobal(context, name, argument_count);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallGlobal, Handle<String>, int);
virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
@@ -2227,6 +2242,10 @@ class HCallGlobal V8_FINAL : public HUnaryCall {
DECLARE_CONCRETE_INSTRUCTION(CallGlobal)
private:
+ HCallGlobal(HValue* context, Handle<String> name, int argument_count)
+ : HUnaryCall(context, argument_count), name_(name) {
+ }
+
Handle<String> name_;
};
@@ -2257,23 +2276,26 @@ class HCallKnownGlobal V8_FINAL : public HCall<0> {
class HCallNew V8_FINAL : public HBinaryCall {
public:
- HCallNew(HValue* context, HValue* constructor, int argument_count)
- : HBinaryCall(context, constructor, argument_count) {}
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallNew, HValue*, int);
HValue* context() { return first(); }
HValue* constructor() { return second(); }
DECLARE_CONCRETE_INSTRUCTION(CallNew)
+
+ private:
+ HCallNew(HValue* context, HValue* constructor, int argument_count)
+ : HBinaryCall(context, constructor, argument_count) {}
};
class HCallNewArray V8_FINAL : public HBinaryCall {
public:
- HCallNewArray(HValue* context, HValue* constructor, int argument_count,
- Handle<Cell> type_cell, ElementsKind elements_kind)
- : HBinaryCall(context, constructor, argument_count),
- elements_kind_(elements_kind),
- type_cell_(type_cell) {}
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HCallNewArray,
+ HValue*,
+ int,
+ Handle<Cell>,
+ ElementsKind);
HValue* context() { return first(); }
HValue* constructor() { return second(); }
@@ -2289,6 +2311,12 @@ class HCallNewArray V8_FINAL : public HBinaryCall {
DECLARE_CONCRETE_INSTRUCTION(CallNewArray)
private:
+ HCallNewArray(HValue* context, HValue* constructor, int argument_count,
+ Handle<Cell> type_cell, ElementsKind elements_kind)
+ : HBinaryCall(context, constructor, argument_count),
+ elements_kind_(elements_kind),
+ type_cell_(type_cell) {}
+
ElementsKind elements_kind_;
Handle<Cell> type_cell_;
};
@@ -2296,13 +2324,10 @@ class HCallNewArray V8_FINAL : public HBinaryCall {
class HCallRuntime V8_FINAL : public HCall<1> {
public:
- static HCallRuntime* New(Zone* zone,
- HValue* context,
- Handle<String> name,
- const Runtime::Function* c_function,
- int argument_count) {
- return new(zone) HCallRuntime(context, name, c_function, argument_count);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HCallRuntime,
+ Handle<String>,
+ const Runtime::Function*,
+ int);
virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
@@ -3877,12 +3902,9 @@ class HBitwiseBinaryOperation : public HBinaryOperation {
class HMathFloorOfDiv V8_FINAL : public HBinaryOperation {
public:
- static HMathFloorOfDiv* New(Zone* zone,
- HValue* context,
- HValue* left,
- HValue* right) {
- return new(zone) HMathFloorOfDiv(context, left, right);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HMathFloorOfDiv,
+ HValue*,
+ HValue*);
virtual HValue* EnsureAndPropagateNotMinusZero(
BitVector* visited) V8_OVERRIDE;
@@ -3928,7 +3950,6 @@ class HArithmeticBinaryOperation : public HBinaryOperation {
}
DECLARE_ABSTRACT_INSTRUCTION(ArithmeticBinaryOperation)
-
private:
virtual bool IsDeletable() const V8_OVERRIDE { return true; }
};
@@ -4159,18 +4180,10 @@ class HIsUndetectableAndBranch V8_FINAL : public HUnaryControlInstruction {
class HStringCompareAndBranch : public HTemplateControlInstruction<2, 3> {
public:
- HStringCompareAndBranch(HValue* context,
- HValue* left,
- HValue* right,
- Token::Value token)
- : token_(token) {
- ASSERT(Token::IsCompareOp(token));
- SetOperandAt(0, context);
- SetOperandAt(1, left);
- SetOperandAt(2, right);
- set_representation(Representation::Tagged());
- SetGVNFlag(kChangesNewSpacePromotion);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HStringCompareAndBranch,
+ HValue*,
+ HValue*,
+ Token::Value);
HValue* context() { return OperandAt(0); }
HValue* left() { return OperandAt(1); }
@@ -4190,6 +4203,19 @@ class HStringCompareAndBranch : public HTemplateControlInstruction<2, 3> {
DECLARE_CONCRETE_INSTRUCTION(StringCompareAndBranch)
private:
+ HStringCompareAndBranch(HValue* context,
+ HValue* left,
+ HValue* right,
+ Token::Value token)
+ : token_(token) {
+ ASSERT(Token::IsCompareOp(token));
+ SetOperandAt(0, context);
+ SetOperandAt(1, left);
+ SetOperandAt(2, right);
+ set_representation(Representation::Tagged());
+ SetGVNFlag(kChangesNewSpacePromotion);
+ }
+
Token::Value token_;
};
@@ -4325,15 +4351,9 @@ class HInstanceOf V8_FINAL : public HBinaryOperation {
class HInstanceOfKnownGlobal V8_FINAL : public HTemplateInstruction<2> {
public:
- HInstanceOfKnownGlobal(HValue* context,
- HValue* left,
- Handle<JSFunction> right)
- : HTemplateInstruction<2>(HType::Boolean()), function_(right) {
- SetOperandAt(0, context);
- SetOperandAt(1, left);
- set_representation(Representation::Tagged());
- SetAllSideEffects();
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HInstanceOfKnownGlobal,
+ HValue*,
+ Handle<JSFunction>);
HValue* context() { return OperandAt(0); }
HValue* left() { return OperandAt(1); }
@@ -4346,6 +4366,16 @@ class HInstanceOfKnownGlobal V8_FINAL : public HTemplateInstruction<2> {
DECLARE_CONCRETE_INSTRUCTION(InstanceOfKnownGlobal)
private:
+ HInstanceOfKnownGlobal(HValue* context,
+ HValue* left,
+ Handle<JSFunction> right)
+ : HTemplateInstruction<2>(HType::Boolean()), function_(right) {
+ SetOperandAt(0, context);
+ SetOperandAt(1, left);
+ set_representation(Representation::Tagged());
+ SetAllSideEffects();
+ }
+
Handle<JSFunction> function_;
};
@@ -4982,12 +5012,7 @@ class HParameter V8_FINAL : public HTemplateInstruction<0> {
class HCallStub V8_FINAL : public HUnaryCall {
public:
- HCallStub(HValue* context, CodeStub::Major major_key, int argument_count)
- : HUnaryCall(context, argument_count),
- major_key_(major_key),
- transcendental_type_(TranscendentalCache::kNumberOfCaches) {
- }
-
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallStub, CodeStub::Major, int);
CodeStub::Major major_key() { return major_key_; }
HValue* context() { return value(); }
@@ -5004,6 +5029,12 @@ class HCallStub V8_FINAL : public HUnaryCall {
DECLARE_CONCRETE_INSTRUCTION(CallStub)
private:
+ HCallStub(HValue* context, CodeStub::Major major_key, int argument_count)
+ : HUnaryCall(context, argument_count),
+ major_key_(major_key),
+ transcendental_type_(TranscendentalCache::kNumberOfCaches) {
+ }
+
CodeStub::Major major_key_;
TranscendentalCache::Type transcendental_type_;
};
@@ -6538,12 +6569,9 @@ class HStringAdd V8_FINAL : public HBinaryOperation {
class HStringCharCodeAt V8_FINAL : public HTemplateInstruction<3> {
public:
- static HStringCharCodeAt* New(Zone* zone,
- HValue* context,
- HValue* string,
- HValue* index) {
- return new(zone) HStringCharCodeAt(context, string, index);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HStringCharCodeAt,
+ HValue*,
+ HValue*);
virtual Representation RequiredInputRepresentation(int index) {
// The index is supposed to be Integer32.
@@ -6647,6 +6675,24 @@ class HMaterializedLiteral : public HTemplateInstruction<V> {
class HRegExpLiteral V8_FINAL : public HMaterializedLiteral<1> {
public:
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HRegExpLiteral,
+ Handle<FixedArray>,
+ Handle<String>,
+ Handle<String>,
+ int);
+
+ HValue* context() { return OperandAt(0); }
+ Handle<FixedArray> literals() { return literals_; }
+ Handle<String> pattern() { return pattern_; }
+ Handle<String> flags() { return flags_; }
+
+ virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
+ return Representation::Tagged();
+ }
+
+ DECLARE_CONCRETE_INSTRUCTION(RegExpLiteral)
+
+ private:
HRegExpLiteral(HValue* context,
Handle<FixedArray> literals,
Handle<String> pattern,
@@ -6661,18 +6707,6 @@ class HRegExpLiteral V8_FINAL : public HMaterializedLiteral<1> {
set_type(HType::JSObject());
}
- HValue* context() { return OperandAt(0); }
- Handle<FixedArray> literals() { return literals_; }
- Handle<String> pattern() { return pattern_; }
- Handle<String> flags() { return flags_; }
-
- virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
- return Representation::Tagged();
- }
-
- DECLARE_CONCRETE_INSTRUCTION(RegExpLiteral)
-
- private:
Handle<FixedArray> literals_;
Handle<String> pattern_;
Handle<String> flags_;
@@ -6681,20 +6715,9 @@ class HRegExpLiteral V8_FINAL : public HMaterializedLiteral<1> {
class HFunctionLiteral V8_FINAL : public HTemplateInstruction<1> {
public:
- HFunctionLiteral(HValue* context,
- Handle<SharedFunctionInfo> shared,
- bool pretenure)
- : HTemplateInstruction<1>(HType::JSObject()),
- shared_info_(shared),
- pretenure_(pretenure),
- has_no_literals_(shared->num_literals() == 0),
- is_generator_(shared->is_generator()),
- language_mode_(shared->language_mode()) {
- SetOperandAt(0, context);
- set_representation(Representation::Tagged());
- SetGVNFlag(kChangesNewSpacePromotion);
- }
-
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HFunctionLiteral,
+ Handle<SharedFunctionInfo>,
+ bool);
HValue* context() { return OperandAt(0); }
virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
@@ -6710,6 +6733,20 @@ class HFunctionLiteral V8_FINAL : public HTemplateInstruction<1> {
LanguageMode language_mode() const { return language_mode_; }
private:
+ HFunctionLiteral(HValue* context,
+ Handle<SharedFunctionInfo> shared,
+ bool pretenure)
+ : HTemplateInstruction<1>(HType::JSObject()),
+ shared_info_(shared),
+ pretenure_(pretenure),
+ has_no_literals_(shared->num_literals() == 0),
+ is_generator_(shared->is_generator()),
+ language_mode_(shared->language_mode()) {
+ SetOperandAt(0, context);
+ set_representation(Representation::Tagged());
+ SetGVNFlag(kChangesNewSpacePromotion);
+ }
+
virtual bool IsDeletable() const V8_OVERRIDE { return true; }
Handle<SharedFunctionInfo> shared_info_;
@@ -6722,11 +6759,7 @@ class HFunctionLiteral V8_FINAL : public HTemplateInstruction<1> {
class HTypeof V8_FINAL : public HTemplateInstruction<2> {
public:
- explicit HTypeof(HValue* context, HValue* value) {
- SetOperandAt(0, context);
- SetOperandAt(1, value);
- set_representation(Representation::Tagged());
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P1(HTypeof, HValue*);
HValue* context() { return OperandAt(0); }
HValue* value() { return OperandAt(1); }
@@ -6740,6 +6773,12 @@ class HTypeof V8_FINAL : public HTemplateInstruction<2> {
DECLARE_CONCRETE_INSTRUCTION(Typeof)
private:
+ explicit HTypeof(HValue* context, HValue* value) {
+ SetOperandAt(0, context);
+ SetOperandAt(1, value);
+ set_representation(Representation::Tagged());
+ }
+
virtual bool IsDeletable() const V8_OVERRIDE { return true; }
};
@@ -6897,11 +6936,7 @@ class HCheckMapValue V8_FINAL : public HTemplateInstruction<2> {
class HForInPrepareMap V8_FINAL : public HTemplateInstruction<2> {
public:
- static HForInPrepareMap* New(Zone* zone,
- HValue* context,
- HValue* object) {
- return new(zone) HForInPrepareMap(context, object);
- }
+ DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P1(HForInPrepareMap, HValue*);
virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
return Representation::Tagged();
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