Refactor the selection of code generator and add the possibility of a

simpler backend for non-toplevel code.

Review URL: http://codereview.chromium.org/549158

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/SConscript

@@ -56,6 +56,7 @@ SOURCES = {
     disassembler.cc
     execution.cc
     factory.cc
+    fast-codegen.cc
     flags.cc
     frame-element.cc
     frames.cc

src/arm/full-codegen-arm.cc

@@ -1171,7 +1171,7 @@ void FullCodeGenerator::VisitCall(Call* expr) {
     if (lit != NULL &&
         lit->name()->Equals(Heap::empty_string()) &&
         loop_depth() == 0) {
-      lit->set_try_fast_codegen(true);
+      lit->set_try_full_codegen(true);
     }
     VisitForValue(fun, kStack);
     // Load global receiver object.

src/ast.h

@@ -1324,7 +1324,7 @@ class FunctionLiteral: public Expression {
         loop_nesting_(0),
         function_token_position_(RelocInfo::kNoPosition),
         inferred_name_(Heap::empty_string()),
-        try_fast_codegen_(false) {
+        try_full_codegen_(false) {
 #ifdef DEBUG
     already_compiled_ = false;
 #endif
@@ -1364,8 +1364,8 @@ class FunctionLiteral: public Expression {
     inferred_name_ = inferred_name;
   }
 
-  bool try_fast_codegen() { return try_fast_codegen_; }
-  void set_try_fast_codegen(bool flag) { try_fast_codegen_ = flag; }
+  bool try_full_codegen() { return try_full_codegen_; }
+  void set_try_full_codegen(bool flag) { try_full_codegen_ = flag; }
 
 #ifdef DEBUG
   void mark_as_compiled() {
@@ -1389,7 +1389,7 @@ class FunctionLiteral: public Expression {
   int loop_nesting_;
   int function_token_position_;
   Handle<String> inferred_name_;
-  bool try_fast_codegen_;
+  bool try_full_codegen_;
 #ifdef DEBUG
   bool already_compiled_;
 #endif

src/compiler.cc

@@ -32,6 +32,7 @@
 #include "compilation-cache.h"
 #include "compiler.h"
 #include "debug.h"
+#include "fast-codegen.h"
 #include "full-codegen.h"
 #include "oprofile-agent.h"
 #include "rewriter.h"
@@ -81,26 +82,37 @@ static Handle<Code> MakeCode(FunctionLiteral* literal,
     return Handle<Code>::null();
   }
 
-  // Generate code and return it.
-  if (FLAG_fast_compiler) {
-    // If there is no shared function info, try the fast code
-    // generator for code in the global scope.  Otherwise obey the
-    // explicit hint in the shared function info.
-    // If always_fast_compiler is true, always try the fast compiler.
-    if (shared.is_null() && !literal->scope()->is_global_scope() &&
-        !FLAG_always_fast_compiler) {
-      if (FLAG_trace_bailout) PrintF("Non-global scope\n");
-    } else if (!shared.is_null() && !shared->try_fast_codegen() &&
-               !FLAG_always_fast_compiler) {
-      if (FLAG_trace_bailout) PrintF("No hint to try fast\n");
-    } else {
-      FullCodeGenSyntaxChecker checker;
-      checker.Check(literal);
-      if (checker.has_supported_syntax()) {
-        return FullCodeGenerator::MakeCode(literal, script, is_eval);
-      }
+  // Generate code and return it.  Code generator selection is governed by
+  // which backends are enabled and whether the function is considered
+  // run-once code or not:
+  //
+  //  --full-compiler enables the dedicated backend for code we expect to be
+  //    run once
+  //  --fast-compiler enables a speculative optimizing backend (for
+  //    non-run-once code)
+  //
+  // The normal choice of backend can be overridden with the flags
+  // --always-full-compiler and --always-fast-compiler, which are mutually
+  // incompatible.
+  CHECK(!FLAG_always_full_compiler || !FLAG_always_fast_compiler);
+
+  bool is_run_once = (shared.is_null())
+      ? literal->scope()->is_global_scope()
+      : (shared->is_toplevel() || shared->try_full_codegen());
+
+  if (FLAG_always_full_compiler || (FLAG_full_compiler && is_run_once)) {
+    FullCodeGenSyntaxChecker checker;
+    checker.Check(literal);
+    if (checker.has_supported_syntax()) {
+      return FullCodeGenerator::MakeCode(literal, script, is_eval);
     }
+  } else if (FLAG_always_fast_compiler ||
+             (FLAG_fast_compiler && !is_run_once)) {
+    FastCodeGenSyntaxChecker checker;
+    checker.Check(literal);
+    // Does not yet generate code.
   }
+
   return CodeGenerator::MakeCode(literal, script, is_eval);
 }
 
@@ -467,10 +479,13 @@ Handle<JSFunction> Compiler::BuildBoilerplate(FunctionLiteral* literal,
       return Handle<JSFunction>::null();
     }
 
-    // Generate code and return it.
+    // Generate code and return it.  The way that the compilation mode
+    // is controlled by the command-line flags is described in
+    // the static helper function MakeCode.
+    CHECK(!FLAG_always_full_compiler || !FLAG_always_fast_compiler);
+    bool is_run_once = literal->try_full_codegen();
     bool is_compiled = false;
-    if (FLAG_always_fast_compiler ||
-        (FLAG_fast_compiler && literal->try_fast_codegen())) {
+    if (FLAG_always_full_compiler || (FLAG_full_compiler && is_run_once)) {
       FullCodeGenSyntaxChecker checker;
       checker.Check(literal);
       if (checker.has_supported_syntax()) {
@@ -479,10 +494,15 @@ Handle<JSFunction> Compiler::BuildBoilerplate(FunctionLiteral* literal,
                                            false);  // Not eval.
         is_compiled = true;
       }
+    } else if (FLAG_always_fast_compiler ||
+               (FLAG_fast_compiler && !is_run_once)) {
+      FastCodeGenSyntaxChecker checker;
+      checker.Check(literal);
+      // Generate no code.
     }
 
     if (!is_compiled) {
-      // We didn't try the fast compiler, or we failed to select it.
+      // We fall back to the classic V8 code generator.
       code = CodeGenerator::MakeCode(literal,
                                      script,
                                      false);  // Not eval.
@@ -544,7 +564,7 @@ void Compiler::SetFunctionInfo(Handle<JSFunction> fun,
   fun->shared()->SetThisPropertyAssignmentsInfo(
       lit->has_only_simple_this_property_assignments(),
       *lit->this_property_assignments());
-  fun->shared()->set_try_fast_codegen(lit->try_fast_codegen());
+  fun->shared()->set_try_full_codegen(lit->try_full_codegen());
 }
 
 

src/fast-codegen.cc

+// Copyright 2010 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.
+
+#include "v8.h"
+
+#include "fast-codegen.h"
+#include "scopes.h"
+
+namespace v8 {
+namespace internal {
+
+#define BAILOUT(reason)                         \
+  do {                                          \
+    if (FLAG_trace_bailout) {                   \
+      PrintF("%s\n", reason);                   \
+    }                                           \
+    has_supported_syntax_ = false;              \
+    return;                                     \
+  } while (false)
+
+
+#define CHECK_BAILOUT                           \
+  do {                                          \
+    if (!has_supported_syntax_) return;         \
+  } while (false)
+
+
+void FastCodeGenSyntaxChecker::Check(FunctionLiteral* fun) {
+  Scope* scope = fun->scope();
+
+  // We do not support stack or heap slots (both of which require
+  // allocation).
+  if (scope->num_stack_slots() > 0) {
+    BAILOUT("Function has stack-allocated locals");
+  }
+  if (scope->num_heap_slots() > 0) {
+    BAILOUT("Function has context-allocated locals");
+  }
+
+  VisitDeclarations(scope->declarations());
+  CHECK_BAILOUT;
+
+  // We do not support empty function bodies.
+  if (fun->body()->is_empty()) BAILOUT("Function has an empty body");
+  VisitStatements(fun->body());
+}
+
+
+void FastCodeGenSyntaxChecker::VisitDeclarations(
+    ZoneList<Declaration*>* decls) {
+  if (!decls->is_empty()) BAILOUT("Function has declarations");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitStatements(ZoneList<Statement*>* stmts) {
+  for (int i = 0, len = stmts->length(); i < len; i++) {
+    Visit(stmts->at(i));
+    CHECK_BAILOUT;
+  }
+}
+
+
+void FastCodeGenSyntaxChecker::VisitDeclaration(Declaration* decl) {
+  UNREACHABLE();
+}
+
+
+void FastCodeGenSyntaxChecker::VisitBlock(Block* stmt) {
+  VisitStatements(stmt->statements());
+}
+
+
+void FastCodeGenSyntaxChecker::VisitExpressionStatement(
+    ExpressionStatement* stmt) {
+  Visit(stmt->expression());
+}
+
+
+void FastCodeGenSyntaxChecker::VisitEmptyStatement(EmptyStatement* stmt) {
+  // Supported.
+}
+
+
+void FastCodeGenSyntaxChecker::VisitIfStatement(IfStatement* stmt) {
+  BAILOUT("IfStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitContinueStatement(ContinueStatement* stmt) {
+  BAILOUT("Continuestatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitBreakStatement(BreakStatement* stmt) {
+  BAILOUT("BreakStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitReturnStatement(ReturnStatement* stmt) {
+  BAILOUT("ReturnStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitWithEnterStatement(
+    WithEnterStatement* stmt) {
+  BAILOUT("WithEnterStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitWithExitStatement(WithExitStatement* stmt) {
+  BAILOUT("WithExitStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitSwitchStatement(SwitchStatement* stmt) {
+  BAILOUT("SwitchStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitDoWhileStatement(DoWhileStatement* stmt) {
+  BAILOUT("DoWhileStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitWhileStatement(WhileStatement* stmt) {
+  BAILOUT("WhileStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitForStatement(ForStatement* stmt) {
+  BAILOUT("ForStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitForInStatement(ForInStatement* stmt) {
+  BAILOUT("ForInStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitTryCatchStatement(TryCatchStatement* stmt) {
+  BAILOUT("TryCatchStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitTryFinallyStatement(
+    TryFinallyStatement* stmt) {
+  BAILOUT("TryFinallyStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitDebuggerStatement(
+    DebuggerStatement* stmt) {
+  BAILOUT("DebuggerStatement");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitFunctionLiteral(FunctionLiteral* expr) {
+  BAILOUT("FunctionLiteral");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitFunctionBoilerplateLiteral(
+    FunctionBoilerplateLiteral* expr) {
+  BAILOUT("FunctionBoilerplateLiteral");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitConditional(Conditional* expr) {
+  BAILOUT("Conditional");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitSlot(Slot* expr) {
+  UNREACHABLE();
+}
+
+
+void FastCodeGenSyntaxChecker::VisitVariableProxy(VariableProxy* expr) {
+  // Only global variable references are supported.
+  Variable* var = expr->var();
+  if (!var->is_global()) BAILOUT("Non-global variable");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitLiteral(Literal* expr) {
+  BAILOUT("Literal");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitRegExpLiteral(RegExpLiteral* expr) {
+  BAILOUT("RegExpLiteral");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitObjectLiteral(ObjectLiteral* expr) {
+  BAILOUT("ObjectLiteral");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitArrayLiteral(ArrayLiteral* expr) {
+  BAILOUT("ArrayLiteral");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitCatchExtensionObject(
+    CatchExtensionObject* expr) {
+  BAILOUT("CatchExtensionObject");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitAssignment(Assignment* expr) {
+  // Simple assignments to (named) this properties are supported.
+  if (expr->op() != Token::ASSIGN) BAILOUT("Non-simple assignment");
+
+  Property* prop = expr->target()->AsProperty();
+  if (prop == NULL) BAILOUT("Non-property assignment");
+  VariableProxy* proxy = prop->obj()->AsVariableProxy();
+  if (proxy == NULL || !proxy->var()->is_this()) {
+    BAILOUT("Non-this-property assignment");
+  }
+  if (!prop->key()->IsPropertyName()) {
+    BAILOUT("Non-named-property assignment");
+  }
+
+  Visit(expr->value());
+}
+
+
+void FastCodeGenSyntaxChecker::VisitThrow(Throw* expr) {
+  BAILOUT("Throw");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitProperty(Property* expr) {
+  BAILOUT("Property");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitCall(Call* expr) {
+  BAILOUT("Call");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitCallNew(CallNew* expr) {
+  BAILOUT("CallNew");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitCallRuntime(CallRuntime* expr) {
+  BAILOUT("CallRuntime");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitUnaryOperation(UnaryOperation* expr) {
+  BAILOUT("UnaryOperation");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitCountOperation(CountOperation* expr) {
+  BAILOUT("CountOperation");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitBinaryOperation(BinaryOperation* expr) {
+  BAILOUT("BinaryOperation");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitCompareOperation(CompareOperation* expr) {
+  BAILOUT("CompareOperation");
+}
+
+
+void FastCodeGenSyntaxChecker::VisitThisFunction(ThisFunction* expr) {
+  BAILOUT("ThisFunction");
+}
+
+#undef BAILOUT
+#undef CHECK_BAILOUT
+
+
+} }  // namespace v8::internal

src/fast-codegen.h

+// Copyright 2010 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 {
+
+class FastCodeGenSyntaxChecker: public AstVisitor {
+ public:
+  FastCodeGenSyntaxChecker() : has_supported_syntax_(true) {}
+
+  void Check(FunctionLiteral* fun);
+
+  bool has_supported_syntax() { return has_supported_syntax_; }
+
+ private:
+  void VisitDeclarations(ZoneList<Declaration*>* decls);
+  void VisitStatements(ZoneList<Statement*>* stmts);
+
+  // AST node visit functions.
+#define DECLARE_VISIT(type) virtual void Visit##type(type* node);
+  AST_NODE_LIST(DECLARE_VISIT)
+#undef DECLARE_VISIT
+
+  bool has_supported_syntax_;
+
+  DISALLOW_COPY_AND_ASSIGN(FastCodeGenSyntaxChecker);
+};
+
+
+} }  // namespace v8::internal
+
+#endif  // V8_FAST_CODEGEN_H_

src/flag-definitions.h

@@ -143,12 +143,14 @@ DEFINE_bool(debug_info, true, "add debug information to compiled functions")
 DEFINE_bool(strict, false, "strict error checking")
 DEFINE_int(min_preparse_length, 1024,
            "minimum length for automatic enable preparsing")
-DEFINE_bool(fast_compiler, true,
-            "use the fast-mode compiler for some top-level code")
-DEFINE_bool(trace_bailout, false,
-            "print reasons for failing to use fast compilation")
+DEFINE_bool(full_compiler, true, "enable dedicated backend for run-once code")
+DEFINE_bool(fast_compiler, false, "enable speculative optimizing backend")
+DEFINE_bool(always_full_compiler, false,
+            "try to use the dedicated run-once backend for all code")
 DEFINE_bool(always_fast_compiler, false,
-            "always try using the fast compiler")
+            "try to use the speculative optimizing backend for all code")
+DEFINE_bool(trace_bailout, false,
+            "print reasons for falling back to using the classic V8 backend")
 
 // compilation-cache.cc
 DEFINE_bool(compilation_cache, true, "enable compilation cache")

src/full-codegen.cc

@@ -174,7 +174,7 @@ void FullCodeGenSyntaxChecker::VisitWhileStatement(WhileStatement* stmt) {
 
 
 void FullCodeGenSyntaxChecker::VisitForStatement(ForStatement* stmt) {
-  if (!FLAG_always_fast_compiler) BAILOUT("ForStatement");
+  if (!FLAG_always_full_compiler) BAILOUT("ForStatement");
   if (stmt->init() != NULL) {
     Visit(stmt->init());
     CHECK_BAILOUT;

src/full-codegen.h

@@ -25,8 +25,8 @@
 // (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_
+#ifndef V8_FULL_CODEGEN_H_
+#define V8_FULL_CODEGEN_H_
 
 #include "v8.h"
 
@@ -442,4 +442,4 @@ class FullCodeGenerator: public AstVisitor {
 
 } }  // namespace v8::internal
 
-#endif  // V8_FAST_CODEGEN_H_
+#endif  // V8_FULL_CODEGEN_H_

src/ia32/full-codegen-ia32.cc

@@ -1275,12 +1275,12 @@ void FullCodeGenerator::VisitCall(Call* expr) {
   } else {
     // Call to some other expression.  If the expression is an anonymous
     // function literal not called in a loop, mark it as one that should
-    // also use the fast code generator.
+    // also use the full code generator.
     FunctionLiteral* lit = fun->AsFunctionLiteral();
     if (lit != NULL &&
         lit->name()->Equals(Heap::empty_string()) &&
         loop_depth() == 0) {
-      lit->set_try_fast_codegen(true);
+      lit->set_try_full_codegen(true);
     }
     VisitForValue(fun, kStack);
     // Load global receiver object.

src/objects-inl.h

@@ -2372,8 +2372,8 @@ BOOL_GETTER(SharedFunctionInfo, compiler_hints,
             kHasOnlySimpleThisPropertyAssignments)
 BOOL_ACCESSORS(SharedFunctionInfo,
                compiler_hints,
-               try_fast_codegen,
-               kTryFastCodegen)
+               try_full_codegen,
+               kTryFullCodegen)
 
 INT_ACCESSORS(SharedFunctionInfo, length, kLengthOffset)
 INT_ACCESSORS(SharedFunctionInfo, formal_parameter_count,

src/objects.h

@@ -3222,8 +3222,8 @@ class SharedFunctionInfo: public HeapObject {
   // this.x = y; where y is either a constant or refers to an argument.
   inline bool has_only_simple_this_property_assignments();
 
-  inline bool try_fast_codegen();
-  inline void set_try_fast_codegen(bool flag);
+  inline bool try_full_codegen();
+  inline void set_try_full_codegen(bool flag);
 
   // For functions which only contains this property assignments this provides
   // access to the names for the properties assigned.
@@ -3304,7 +3304,7 @@ class SharedFunctionInfo: public HeapObject {
 
   // Bit positions in compiler_hints.
   static const int kHasOnlySimpleThisPropertyAssignments = 0;
-  static const int kTryFastCodegen = 1;
+  static const int kTryFullCodegen = 1;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(SharedFunctionInfo);
 };

src/x64/full-codegen-x64.cc

@@ -1286,7 +1286,7 @@ void FullCodeGenerator::VisitCall(Call* expr) {
     if (lit != NULL &&
         lit->name()->Equals(Heap::empty_string()) &&
         loop_depth() == 0) {
-      lit->set_try_fast_codegen(true);
+      lit->set_try_full_codegen(true);
     }
     VisitForValue(fun, kStack);
     // Load global receiver object.

tools/gyp/v8.gyp

@@ -267,6 +267,8 @@
         '../../src/execution.h',
         '../../src/factory.cc',
         '../../src/factory.h',
+        '../../src/fast-codegen.cc',
+        '../../src/fast-codegen.h',
         '../../src/flag-definitions.h',
         '../../src/flags.cc',
         '../../src/flags.h',