Pull from svn bleeding_edge@3716

1 files changed, 0 insertions, 419 deletions

diff --git a/src/fast-codegen.h b/src/fast-codegen.h
deleted file mode 100644
index c26e0f30..00000000
--- a/src/fast-codegen.h
+++ /dev/null
@@ -1,419 +0,0 @@
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#ifndef V8_FAST_CODEGEN_H_
-#define V8_FAST_CODEGEN_H_
-
-#include "v8.h"
-
-#include "ast.h"
-
-namespace v8 {
-namespace internal {
-
-// -----------------------------------------------------------------------------
-// Fast code generator.
-
-class FastCodeGenerator: public AstVisitor {
- public:
-  FastCodeGenerator(MacroAssembler* masm, Handle<Script> script, bool is_eval)
-      : masm_(masm),
-        function_(NULL),
-        script_(script),
-        is_eval_(is_eval),
-        nesting_stack_(NULL),
-        loop_depth_(0),
-        location_(kStack),
-        true_label_(NULL),
-        false_label_(NULL) {
-  }
-
-  static Handle<Code> MakeCode(FunctionLiteral* fun,
-                               Handle<Script> script,
-                               bool is_eval);
-
-  void Generate(FunctionLiteral* fun);
-
- private:
-  class Breakable;
-  class Iteration;
-  class TryCatch;
-  class TryFinally;
-  class Finally;
-  class ForIn;
-
-  class NestedStatement BASE_EMBEDDED {
-   public:
-    explicit NestedStatement(FastCodeGenerator* codegen) : codegen_(codegen) {
-      // Link into codegen's nesting stack.
-      previous_ = codegen->nesting_stack_;
-      codegen->nesting_stack_ = this;
-    }
-    virtual ~NestedStatement() {
-      // Unlink from codegen's nesting stack.
-      ASSERT_EQ(this, codegen_->nesting_stack_);
-      codegen_->nesting_stack_ = previous_;
-    }
-
-    virtual Breakable* AsBreakable() { return NULL; }
-    virtual Iteration* AsIteration() { return NULL; }
-    virtual TryCatch* AsTryCatch() { return NULL; }
-    virtual TryFinally* AsTryFinally() { return NULL; }
-    virtual Finally* AsFinally() { return NULL; }
-    virtual ForIn* AsForIn() { return NULL; }
-
-    virtual bool IsContinueTarget(Statement* target) { return false; }
-    virtual bool IsBreakTarget(Statement* target) { return false; }
-
-    // Generate code to leave the nested statement. This includes
-    // cleaning up any stack elements in use and restoring the
-    // stack to the expectations of the surrounding statements.
-    // Takes a number of stack elements currently on top of the
-    // nested statement's stack, and returns a number of stack
-    // elements left on top of the surrounding statement's stack.
-    // The generated code must preserve the result register (which
-    // contains the value in case of a return).
-    virtual int Exit(int stack_depth) {
-      // Default implementation for the case where there is
-      // nothing to clean up.
-      return stack_depth;
-    }
-    NestedStatement* outer() { return previous_; }
-   protected:
-    MacroAssembler* masm() { return codegen_->masm(); }
-   private:
-    FastCodeGenerator* codegen_;
-    NestedStatement* previous_;
-    DISALLOW_COPY_AND_ASSIGN(NestedStatement);
-  };
-
-  class Breakable : public NestedStatement {
-   public:
-    Breakable(FastCodeGenerator* codegen,
-              BreakableStatement* break_target)
-        : NestedStatement(codegen),
-          target_(break_target) {}
-    virtual ~Breakable() {}
-    virtual Breakable* AsBreakable() { return this; }
-    virtual bool IsBreakTarget(Statement* statement) {
-      return target_ == statement;
-    }
-    BreakableStatement* statement() { return target_; }
-    Label* break_target() { return &break_target_label_; }
-   private:
-    BreakableStatement* target_;
-    Label break_target_label_;
-    DISALLOW_COPY_AND_ASSIGN(Breakable);
-  };
-
-  class Iteration : public Breakable {
-   public:
-    Iteration(FastCodeGenerator* codegen,
-              IterationStatement* iteration_statement)
-        : Breakable(codegen, iteration_statement) {}
-    virtual ~Iteration() {}
-    virtual Iteration* AsIteration() { return this; }
-    virtual bool IsContinueTarget(Statement* statement) {
-      return this->statement() == statement;
-    }
-    Label* continue_target() { return &continue_target_label_; }
-   private:
-    Label continue_target_label_;
-    DISALLOW_COPY_AND_ASSIGN(Iteration);
-  };
-
-  // The environment inside the try block of a try/catch statement.
-  class TryCatch : public NestedStatement {
-   public:
-    explicit TryCatch(FastCodeGenerator* codegen, Label* catch_entry)
-        : NestedStatement(codegen), catch_entry_(catch_entry) { }
-    virtual ~TryCatch() {}
-    virtual TryCatch* AsTryCatch() { return this; }
-    Label* catch_entry() { return catch_entry_; }
-    virtual int Exit(int stack_depth);
-   private:
-    Label* catch_entry_;
-    DISALLOW_COPY_AND_ASSIGN(TryCatch);
-  };
-
-  // The environment inside the try block of a try/finally statement.
-  class TryFinally : public NestedStatement {
-   public:
-    explicit TryFinally(FastCodeGenerator* codegen, Label* finally_entry)
-        : NestedStatement(codegen), finally_entry_(finally_entry) { }
-    virtual ~TryFinally() {}
-    virtual TryFinally* AsTryFinally() { return this; }
-    Label* finally_entry() { return finally_entry_; }
-    virtual int Exit(int stack_depth);
-   private:
-    Label* finally_entry_;
-    DISALLOW_COPY_AND_ASSIGN(TryFinally);
-  };
-
-  // A FinallyEnvironment represents being inside a finally block.
-  // Abnormal termination of the finally block needs to clean up
-  // the block's parameters from the stack.
-  class Finally : public NestedStatement {
-   public:
-    explicit Finally(FastCodeGenerator* codegen) : NestedStatement(codegen) { }
-    virtual ~Finally() {}
-    virtual Finally* AsFinally() { return this; }
-    virtual int Exit(int stack_depth) {
-      return stack_depth + kFinallyStackElementCount;
-    }
-   private:
-    // Number of extra stack slots occupied during a finally block.
-    static const int kFinallyStackElementCount = 2;
-    DISALLOW_COPY_AND_ASSIGN(Finally);
-  };
-
-  // A ForInEnvironment represents being inside a for-in loop.
-  // Abnormal termination of the for-in block needs to clean up
-  // the block's temporary storage from the stack.
-  class ForIn : public Iteration {
-   public:
-    ForIn(FastCodeGenerator* codegen,
-          ForInStatement* statement)
-        : Iteration(codegen, statement) { }
-    virtual ~ForIn() {}
-    virtual ForIn* AsForIn() { return this; }
-    virtual int Exit(int stack_depth) {
-      return stack_depth + kForInStackElementCount;
-    }
-   private:
-    // TODO(lrn): Check that this value is correct when implementing
-    // for-in.
-    static const int kForInStackElementCount = 5;
-    DISALLOW_COPY_AND_ASSIGN(ForIn);
-  };
-
-  enum Location {
-    kAccumulator,
-    kStack
-  };
-
-  int SlotOffset(Slot* slot);
-
-  // Emit code to convert a pure value (in a register, slot, as a literal,
-  // or on top of the stack) into the result expected according to an
-  // expression context.
-  void Apply(Expression::Context context, Register reg);
-  void Apply(Expression::Context context, Slot* slot);
-  void Apply(Expression::Context context, Literal* lit);
-  void ApplyTOS(Expression::Context context);
-
-  // Emit code to discard count elements from the top of stack, then convert
-  // a pure value into the result expected according to an expression
-  // context.
-  void DropAndApply(int count, Expression::Context context, Register reg);
-
-  // Emit code to convert pure control flow to a pair of labels into the
-  // result expected according to an expression context.
-  void Apply(Expression::Context context,
-             Label* materialize_true,
-             Label* materialize_false);
-
-  // Helper function to convert a pure value into a test context.  The value
-  // is expected on the stack or the accumulator, depending on the platform.
-  // See the platform-specific implementation for details.
-  void DoTest(Expression::Context context);
-
-  void Move(Slot* dst, Register source, Register scratch1, Register scratch2);
-  void Move(Register dst, Slot* source);
-
-  // Return an operand used to read/write to a known (ie, non-LOOKUP) slot.
-  // May emit code to traverse the context chain, destroying the scratch
-  // register.
-  MemOperand EmitSlotSearch(Slot* slot, Register scratch);
-
-  void VisitForEffect(Expression* expr) {
-    Expression::Context saved_context = context_;
-    context_ = Expression::kEffect;
-    Visit(expr);
-    context_ = saved_context;
-  }
-
-  void VisitForValue(Expression* expr, Location where) {
-    Expression::Context saved_context = context_;
-    Location saved_location = location_;
-    context_ = Expression::kValue;
-    location_ = where;
-    Visit(expr);
-    context_ = saved_context;
-    location_ = saved_location;
-  }
-
-  void VisitForControl(Expression* expr, Label* if_true, Label* if_false) {
-    Expression::Context saved_context = context_;
-    Label* saved_true = true_label_;
-    Label* saved_false = false_label_;
-    context_ = Expression::kTest;
-    true_label_ = if_true;
-    false_label_ = if_false;
-    Visit(expr);
-    context_ = saved_context;
-    true_label_ = saved_true;
-    false_label_ = saved_false;
-  }
-
-  void VisitForValueControl(Expression* expr,
-                            Location where,
-                            Label* if_true,
-                            Label* if_false) {
-    Expression::Context saved_context = context_;
-    Location saved_location = location_;
-    Label* saved_true = true_label_;
-    Label* saved_false = false_label_;
-    context_ = Expression::kValueTest;
-    location_ = where;
-    true_label_ = if_true;
-    false_label_ = if_false;
-    Visit(expr);
-    context_ = saved_context;
-    location_ = saved_location;
-    true_label_ = saved_true;
-    false_label_ = saved_false;
-  }
-
-  void VisitForControlValue(Expression* expr,
-                            Location where,
-                            Label* if_true,
-                            Label* if_false) {
-    Expression::Context saved_context = context_;
-    Location saved_location = location_;
-    Label* saved_true = true_label_;
-    Label* saved_false = false_label_;
-    context_ = Expression::kTestValue;
-    location_ = where;
-    true_label_ = if_true;
-    false_label_ = if_false;
-    Visit(expr);
-    context_ = saved_context;
-    location_ = saved_location;
-    true_label_ = saved_true;
-    false_label_ = saved_false;
-  }
-
-  void VisitDeclarations(ZoneList<Declaration*>* declarations);
-  void DeclareGlobals(Handle<FixedArray> pairs);
-
-  // Platform-specific return sequence
-  void EmitReturnSequence(int position);
-
-  // Platform-specific code sequences for calls
-  void EmitCallWithStub(Call* expr);
-  void EmitCallWithIC(Call* expr, Handle<Object> name, RelocInfo::Mode mode);
-
-  // Platform-specific code for loading variables.
-  void EmitVariableLoad(Variable* expr, Expression::Context context);
-
-  // Platform-specific support for compiling assignments.
-
-  // Load a value from a named property.
-  // The receiver is left on the stack by the IC.
-  void EmitNamedPropertyLoad(Property* expr);
-
-  // Load a value from a keyed property.
-  // The receiver and the key is left on the stack by the IC.
-  void EmitKeyedPropertyLoad(Property* expr);
-
-  // Apply the compound assignment operator. Expects the left operand on top
-  // of the stack and the right one in the accumulator.
-  void EmitBinaryOp(Token::Value op, Expression::Context context);
-
-  // Complete a variable assignment.  The right-hand-side value is expected
-  // in the accumulator.
-  void EmitVariableAssignment(Variable* var, Expression::Context context);
-
-  // Complete a named property assignment.  The receiver is expected on top
-  // of the stack and the right-hand-side value in the accumulator.
-  void EmitNamedPropertyAssignment(Assignment* expr);
-
-  // Complete a keyed property assignment.  The receiver and key are
-  // expected on top of the stack and the right-hand-side value in the
-  // accumulator.
-  void EmitKeyedPropertyAssignment(Assignment* expr);
-
-  void SetFunctionPosition(FunctionLiteral* fun);
-  void SetReturnPosition(FunctionLiteral* fun);
-  void SetStatementPosition(Statement* stmt);
-  void SetStatementPosition(int pos);
-  void SetSourcePosition(int pos);
-
-  // Non-local control flow support.
-  void EnterFinallyBlock();
-  void ExitFinallyBlock();
-
-  // Loop nesting counter.
-  int loop_depth() { return loop_depth_; }
-  void increment_loop_depth() { loop_depth_++; }
-  void decrement_loop_depth() {
-    ASSERT(loop_depth_ > 0);
-    loop_depth_--;
-  }
-
-  MacroAssembler* masm() { return masm_; }
-  static Register result_register();
-  static Register context_register();
-
-  // Set fields in the stack frame. Offsets are the frame pointer relative
-  // offsets defined in, e.g., StandardFrameConstants.
-  void StoreToFrameField(int frame_offset, Register value);
-
-  // Load a value from the current context. Indices are defined as an enum
-  // in v8::internal::Context.
-  void LoadContextField(Register dst, int context_index);
-
-  // AST node visit functions.
-#define DECLARE_VISIT(type) virtual void Visit##type(type* node);
-  AST_NODE_LIST(DECLARE_VISIT)
-#undef DECLARE_VISIT
-  // Handles the shortcutted logical binary operations in VisitBinaryOperation.
-  void EmitLogicalOperation(BinaryOperation* expr);
-
-  MacroAssembler* masm_;
-  FunctionLiteral* function_;
-  Handle<Script> script_;
-  bool is_eval_;
-  Label return_label_;
-  NestedStatement* nesting_stack_;
-  int loop_depth_;
-
-  Expression::Context context_;
-  Location location_;
-  Label* true_label_;
-  Label* false_label_;
-
-  friend class NestedStatement;
-
-  DISALLOW_COPY_AND_ASSIGN(FastCodeGenerator);
-};
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_FAST_CODEGEN_H_