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Fix to_boolean type feedback for unary and binary ops

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BUG=
R=jkummerow@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/17444011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15319 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
olivf@chromium.org 2013-06-25 11:49:46 +00:00
parent 256c136b4f
commit eac9b2191b
2 changed files with 26 additions and 1 deletions
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20
src/ast.cc
View File

@ -288,6 +288,16 @@ void TargetCollector::AddTarget(Label* target, Zone* zone) {
}
void UnaryOperation::RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle) {
// TODO(olivf) If this Operation is used in a test context, then the
// expression has a ToBoolean stub and we want to collect the type
// information. However the GraphBuilder expects it to be on the instruction
// corresponding to the TestContext, therefore we have to store it here and
// not on the operand.
set_to_boolean_types(oracle->ToBooleanTypes(expression()->test_id()));
}
bool UnaryOperation::ResultOverwriteAllowed() {
switch (op_) {
case Token::BIT_NOT:
@ -299,6 +309,16 @@ bool UnaryOperation::ResultOverwriteAllowed() {
}
void BinaryOperation::RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle) {
// TODO(olivf) If this Operation is used in a test context, then the right
// hand side has a ToBoolean stub and we want to collect the type information.
// However the GraphBuilder expects it to be on the instruction corresponding
// to the TestContext, therefore we have to store it here and not on the
// right hand operand.
set_to_boolean_types(oracle->ToBooleanTypes(right()->test_id()));
}
bool BinaryOperation::ResultOverwriteAllowed() {
switch (op_) {
case Token::COMMA:

7
src/ast.h
View File

@ -383,7 +383,7 @@ class Expression: public AstNode {
}
// TODO(rossberg): this should move to its own AST node eventually.
void RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle);
virtual void RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle);
byte to_boolean_types() const { return to_boolean_types_; }
BailoutId id() const { return id_; }
@ -395,6 +395,7 @@ class Expression: public AstNode {
lower_type_(Type::None(), isolate),
id_(GetNextId(isolate)),
test_id_(GetNextId(isolate)) {}
void set_to_boolean_types(byte types) { to_boolean_types_ = types; }
private:
Handle<Type> upper_type_;
@ -1841,6 +1842,8 @@ class UnaryOperation: public Expression {
TypeFeedbackId UnaryOperationFeedbackId() const { return reuse(id()); }
virtual void RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle);
protected:
UnaryOperation(Isolate* isolate,
Token::Value op,
@ -1884,6 +1887,8 @@ class BinaryOperation: public Expression {
Maybe<int> fixed_right_arg() const { return fixed_right_arg_; }
void set_fixed_right_arg(Maybe<int> arg) { fixed_right_arg_ = arg; }
virtual void RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle);
protected:
BinaryOperation(Isolate* isolate,
Token::Value op,