v8::internal::compiler::ScheduleEarlyNodeVisitor Class Reference

Inheritance diagram for v8::internal::compiler::ScheduleEarlyNodeVisitor:

Collaboration diagram for v8::internal::compiler::ScheduleEarlyNodeVisitor:

Public Member Functions
	ScheduleEarlyNodeVisitor (Scheduler *scheduler)
GenericGraphVisit::Control	Pre (Node *node)
GenericGraphVisit::Control	Post (Node *node)
Public Member Functions inherited from v8::internal::compiler::GenericGraphVisit::NullNodeVisitor< B, S >
Control	Pre (GenericNode< B, S > *node)
Control	Post (GenericNode< B, S > *node)
void	PreEdge (GenericNode< B, S > *from, int index, GenericNode< B, S > *to)
void	PostEdge (GenericNode< B, S > *from, int index, GenericNode< B, S > *to)

Public Attributes
bool	has_changed_rpo_constraints_

Private Attributes
Scheduler *	scheduler_
Schedule *	schedule_

Detailed Description

Definition at line 355 of file scheduler.cc.

Constructor & Destructor Documentation

ScheduleEarlyNodeVisitor()

v8::internal::compiler::ScheduleEarlyNodeVisitor::ScheduleEarlyNodeVisitor ( Scheduler *  scheduler )

inlineexplicit

Definition at line 357 of file scheduler.cc.

      : has_changed_rpo_constraints_(true),
        scheduler_(scheduler),
        schedule_(scheduler->schedule_) {}

Member Function Documentation

Post()

GenericGraphVisit::Control v8::internal::compiler::ScheduleEarlyNodeVisitor::Post ( Node *  node )

inline

Definition at line 379 of file scheduler.cc.

                                            {
    int max_rpo = 0;
    // Otherwise, the minimum rpo for the node is the max of all of the inputs.
    if (scheduler_->GetPlacement(node) != Scheduler::kFixed) {
      for (InputIter i = node->inputs().begin(); i != node->inputs().end();
           ++i) {
        int control_rpo = scheduler_->GetData(*i)->minimum_rpo_;
        if (control_rpo > max_rpo) {
          max_rpo = control_rpo;
        }
      }
      if (scheduler_->GetData(node)->minimum_rpo_ != max_rpo) {
        has_changed_rpo_constraints_ = true;
      }
      scheduler_->GetData(node)->minimum_rpo_ = max_rpo;
      Trace("Postschedule #%d:%s minimum_rpo = %d\n", node->id(),
            node->op()->mnemonic(), max_rpo);
    }
    return GenericGraphVisit::CONTINUE;
  }

References v8::internal::compiler::GenericGraphVisit::CONTINUE, v8::internal::compiler::Scheduler::GetData(), v8::internal::compiler::Scheduler::GetPlacement(), has_changed_rpo_constraints_, v8::internal::compiler::Scheduler::kFixed, v8::internal::compiler::Scheduler::SchedulerData::minimum_rpo_, scheduler_, and v8::internal::compiler::Trace().

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Pre()

GenericGraphVisit::Control v8::internal::compiler::ScheduleEarlyNodeVisitor::Pre ( Node *  node )

inline

Definition at line 362 of file scheduler.cc.

                                           {
    int max_rpo = 0;
    // Fixed nodes already know their schedule early position.
    if (scheduler_->GetPlacement(node) == Scheduler::kFixed) {
      BasicBlock* block = schedule_->block(node);
      DCHECK(block != NULL);
      max_rpo = block->rpo_number_;
      if (scheduler_->GetData(node)->minimum_rpo_ != max_rpo) {
        has_changed_rpo_constraints_ = true;
      }
      scheduler_->GetData(node)->minimum_rpo_ = max_rpo;
      Trace("Preschedule #%d:%s minimum_rpo = %d\n", node->id(),
            node->op()->mnemonic(), max_rpo);
    }
    return GenericGraphVisit::CONTINUE;
  }

References v8::internal::compiler::Schedule::block(), v8::internal::compiler::GenericGraphVisit::CONTINUE, DCHECK, v8::internal::compiler::Scheduler::GetData(), v8::internal::compiler::Scheduler::GetPlacement(), has_changed_rpo_constraints_, v8::internal::compiler::Scheduler::kFixed, v8::internal::compiler::Scheduler::SchedulerData::minimum_rpo_, NULL, schedule_, scheduler_, and v8::internal::compiler::Trace().

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Member Data Documentation

has_changed_rpo_constraints_

bool v8::internal::compiler::ScheduleEarlyNodeVisitor::has_changed_rpo_constraints_

Definition at line 402 of file scheduler.cc.

Referenced by Post(), Pre(), and v8::internal::compiler::Scheduler::ScheduleEarly().

schedule_

Schedule* v8::internal::compiler::ScheduleEarlyNodeVisitor::schedule_

private

Definition at line 406 of file scheduler.cc.

Referenced by Pre().

scheduler_

Scheduler* v8::internal::compiler::ScheduleEarlyNodeVisitor::scheduler_

private

Definition at line 405 of file scheduler.cc.

Referenced by Post(), and Pre().

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The documentation for this class was generated from the following file:

• /mnt/V8SourceCode/src/compiler/scheduler.cc