Improve our type feedback by recogizining never-executed IC calls for binary ...

src/full-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
@@ skipping 20 matching lines @@
 #include "v8.h"
 
 #include "ast.h"
 #include "code-stubs.h"
 #include "codegen.h"
 #include "compiler.h"
 
 namespace v8 {
 namespace internal {
 
+// Forward declarations.
+class JumpPatchSite;
+
 // AST node visitor which can tell whether a given statement will be breakable
 // when the code is compiled by the full compiler in the debugger. This means
 // that there will be an IC (load/store/call) in the code generated for the
 // debugger to piggybag on.
 class BreakableStatementChecker: public AstVisitor {
  public:
   BreakableStatementChecker() : is_breakable_(false) {}
 
   void Check(Statement* stmt);
   void Check(Expression* stmt);
@@ skipping 475 matching lines @@
   bool is_eval() { return info_->is_eval(); }
   FunctionLiteral* function() { return info_->function(); }
   Scope* scope() { return info_->scope(); }
 
   static Register result_register();
   static Register context_register();
 
   // Helper for calling an IC stub.
   void EmitCallIC(Handle<Code> ic, RelocInfo::Mode mode);
 
+  // Helper for calling an IC stub with a patch site. Passing NULL for patch_site
+  // indicates no inlined smi code and emits a nop after the IC call.
+  void EmitCallIC(Handle<Code> ic, JumpPatchSite* patch_site);
+
   // 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);
@@ skipping 210 matching lines @@
 
   friend class NestedStatement;
 
   DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_H_