v8::internal::compiler::ScaleFactorMatcher Class Reference

#include <node-matchers.h>

Inheritance diagram for v8::internal::compiler::ScaleFactorMatcher:

Collaboration diagram for v8::internal::compiler::ScaleFactorMatcher:

Public Member Functions
	ScaleFactorMatcher (Node *node)
bool	Matches ()
int	Power ()
Node *	Left ()
Public Member Functions inherited from v8::internal::compiler::NodeMatcher
	NodeMatcher (Node *node)
Node *	node () const
const Operator *	op () const
IrOpcode::Value	opcode () const
bool	HasProperty (Operator::Property property) const
Node *	InputAt (int index) const

Private Member Functions
void	Match ()

Private Attributes
Node *	left_
int	power_

Detailed Description

Definition at line 146 of file node-matchers.h.

Constructor & Destructor Documentation

ScaleFactorMatcher()

v8::internal::compiler::ScaleFactorMatcher::ScaleFactorMatcher ( Node *  node )

inlineexplicit

Definition at line 148 of file node-matchers.h.

      : NodeMatcher(node), left_(NULL), power_(0) {
    Match();
  }

References Match().

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Member Function Documentation

Left()

Node* v8::internal::compiler::ScaleFactorMatcher::Left ( )

inline

Definition at line 158 of file node-matchers.h.

               {
    DCHECK(Matches());
    return left_;
  }

References DCHECK, left_, and Matches().

Referenced by v8::internal::compiler::IndexAndDisplacementMatcher::Match().

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Match()

void v8::internal::compiler::ScaleFactorMatcher::Match ( )

inlineprivate

Definition at line 164 of file node-matchers.h.

               {
    if (opcode() != IrOpcode::kInt32Mul) return;
    Int32BinopMatcher m(node());
    if (!m.right().HasValue()) return;
    int32_t value = m.right().Value();
    switch (value) {
      case 8:
        power_++;  // Fall through.
      case 4:
        power_++;  // Fall through.
      case 2:
        power_++;  // Fall through.
      case 1:
        break;
      default:
        return;
    }
    left_ = m.left().node();
  }

References left_, v8::internal::compiler::NodeMatcher::node(), v8::internal::compiler::NodeMatcher::opcode(), and power_.

Referenced by ScaleFactorMatcher().

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Matches()

bool v8::internal::compiler::ScaleFactorMatcher::Matches ( )

inline

Definition at line 153 of file node-matchers.h.

{ return left_ != NULL; }

References left_, and NULL.

Referenced by Left(), v8::internal::compiler::IndexAndDisplacementMatcher::Match(), and Power().

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Power()

int v8::internal::compiler::ScaleFactorMatcher::Power ( )

inline

Definition at line 154 of file node-matchers.h.

              {
    DCHECK(Matches());
    return power_;
  }

References DCHECK, Matches(), and power_.

Referenced by v8::internal::compiler::IndexAndDisplacementMatcher::Match().

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Member Data Documentation

left_

Node* v8::internal::compiler::ScaleFactorMatcher::left_

private

Definition at line 184 of file node-matchers.h.

Referenced by Left(), Match(), and Matches().

power_

int v8::internal::compiler::ScaleFactorMatcher::power_

private

Definition at line 185 of file node-matchers.h.

Referenced by Match(), and Power().

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

• /mnt/V8SourceCode/src/compiler/node-matchers.h