Version 3.4.0.
Changed calls to undefined property setters to not throw (issue 1355).
Made RegExp objects not callable.
Fixed issues on special case large JSON strings in new json parser (issues http://crbug.com/83877 and http://crbug.com/84186).
Performance improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@8096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 850a047..fce11a1 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -101,6 +101,7 @@
V(EnterInlined) \
V(ExternalArrayLength) \
V(FixedArrayLength) \
+ V(ToInt32) \
V(ForceRepresentation) \
V(FunctionLiteral) \
V(GetCachedArrayIndex) \
@@ -991,6 +992,14 @@
SetOperandAt(0, value);
}
+ static HUnaryOperation* cast(HValue* value) {
+ return reinterpret_cast<HUnaryOperation*>(value);
+ }
+
+ virtual bool CanTruncateToInt32() const {
+ return CheckFlag(kTruncatingToInt32);
+ }
+
HValue* value() { return OperandAt(0); }
virtual void PrintDataTo(StringStream* stream);
};
@@ -1055,8 +1064,6 @@
return from_;
}
- bool CanTruncateToInt32() const { return CheckFlag(kTruncatingToInt32); }
-
virtual void PrintDataTo(StringStream* stream);
DECLARE_CONCRETE_INSTRUCTION(Change)
@@ -1114,6 +1121,37 @@
};
+class HToInt32: public HUnaryOperation {
+ public:
+ explicit HToInt32(HValue* value)
+ : HUnaryOperation(value) {
+ set_representation(Representation::Integer32());
+ SetFlag(kUseGVN);
+ }
+
+ virtual Representation RequiredInputRepresentation(int index) const {
+ return Representation::None();
+ }
+
+ virtual bool CanTruncateToInt32() const {
+ return true;
+ }
+
+ virtual HValue* Canonicalize() {
+ if (value()->representation().IsInteger32()) {
+ return value();
+ } else {
+ return this;
+ }
+ }
+
+ DECLARE_CONCRETE_INSTRUCTION(ToInt32)
+
+ protected:
+ virtual bool DataEquals(HValue* other) { return true; }
+};
+
+
class HSimulate: public HInstruction {
public:
HSimulate(int ast_id, int pop_count)