Merge revision 3813 to 3930 from bleeding_edge to partial snapshots branch.

src/ia32/macro-assembler-ia32.h

 // Copyright 2006-2009 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
@@ skipping 51 matching lines @@
   // ---------------------------------------------------------------------------
   // Debugger Support
 
   void SaveRegistersToMemory(RegList regs);
   void RestoreRegistersFromMemory(RegList regs);
   void PushRegistersFromMemory(RegList regs);
   void PopRegistersToMemory(RegList regs);
   void CopyRegistersFromStackToMemory(Register base,
                                       Register scratch,
                                       RegList regs);
+  void DebugBreak();
 #endif
 
   // ---------------------------------------------------------------------------
   // Stack limit support
 
   // Do simple test for stack overflow. This doesn't handle an overflow.
   void StackLimitCheck(Label* on_stack_limit_hit);
 
   // ---------------------------------------------------------------------------
   // Activation frames
@@ skipping 34 matching lines @@
                   const ParameterCount& actual,
                   RelocInfo::Mode rmode,
                   InvokeFlag flag);
 
   // Invoke the JavaScript function in the given register. Changes the
   // current context to the context in the function before invoking.
   void InvokeFunction(Register function,
                       const ParameterCount& actual,
                       InvokeFlag flag);
 
+  void InvokeFunction(JSFunction* function,
+                      const ParameterCount& actual,
+                      InvokeFlag flag);
+
   // Invoke specified builtin JavaScript function. Adds an entry to
   // the unresolved list if the name does not resolve.
   void InvokeBuiltin(Builtins::JavaScript id, InvokeFlag flag);
 
   // Store the code object for the given builtin in the target register.
   void GetBuiltinEntry(Register target, Builtins::JavaScript id);
 
   // Expression support
   void Set(Register dst, const Immediate& x);
   void Set(const Operand& dst, const Immediate& x);
@@ skipping 28 matching lines @@
 
   // Smi tagging support.
   void SmiTag(Register reg) {
     ASSERT(kSmiTag == 0);
     shl(reg, kSmiTagSize);
   }
   void SmiUntag(Register reg) {
     sar(reg, kSmiTagSize);
   }
 
+  // Abort execution if argument is not a number. Used in debug code.
+  void AbortIfNotNumber(Register object, const char* msg);
+
   // ---------------------------------------------------------------------------
   // Exception handling
 
   // Push a new try handler and link into try handler chain.  The return
   // address must be pushed before calling this helper.
   void PushTryHandler(CodeLocation try_location, HandlerType type);
 
   // Unlink the stack handler on top of the stack from the try handler chain.
   void PopTryHandler();
 
   // ---------------------------------------------------------------------------
   // Inline caching support
 
   // Generates code that verifies that the maps of objects in the
   // prototype chain of object hasn't changed since the code was
   // generated and branches to the miss label if any map has. If
   // necessary the function also generates code for security check
   // in case of global object holders. The scratch and holder
   // registers are always clobbered, but the object register is only
   // clobbered if it the same as the holder register. The function
   // returns a register containing the holder - either object_reg or
   // holder_reg.
+  // The function can optionally (when save_at_depth !=
+  // kInvalidProtoDepth) save the object at the given depth by moving
+  // it to [esp + kPointerSize].
   Register CheckMaps(JSObject* object, Register object_reg,
                      JSObject* holder, Register holder_reg,
-                     Register scratch, Label* miss);
+                     Register scratch,
+                     int save_at_depth,
+                     Label* miss);
 
   // Generate code for checking access rights - used for security checks
   // on access to global objects across environments. The holder register
   // is left untouched, but the scratch register is clobbered.
   void CheckAccessGlobalProxy(Register holder_reg,
                               Register scratch,
                               Label* miss);
 
 
   // ---------------------------------------------------------------------------
@@ skipping 131 matching lines @@
   void CallRuntime(Runtime::Function* f, int num_arguments);
 
   // Call a runtime function, returning the CodeStub object called.
   // Try to generate the stub code if necessary.  Do not perform a GC
   // but instead return a retry after GC failure.
   Object* TryCallRuntime(Runtime::Function* f, int num_arguments);
 
   // Convenience function: Same as above, but takes the fid instead.
   void CallRuntime(Runtime::FunctionId id, int num_arguments);
 
+  // Convenience function: call an external reference.
+  void CallExternalReference(ExternalReference ref, int num_arguments);
+
   // Convenience function: Same as above, but takes the fid instead.
   Object* TryCallRuntime(Runtime::FunctionId id, int num_arguments);
 
   // Tail call of a runtime routine (jump).
   // Like JumpToRuntime, but also takes care of passing the number
   // of arguments.
   void TailCallRuntime(const ExternalReference& ext,
                        int num_arguments,
                        int result_size);
 
@@ skipping 17 matching lines @@
   void Ret();
 
   // Emit code to discard a non-negative number of pointer-sized elements
   // from the stack, clobbering only the esp register.
   void Drop(int element_count);
 
   void Call(Label* target) { call(target); }
 
   void Move(Register target, Handle<Object> value);
 
-  struct Unresolved {
-    int pc;
-    uint32_t flags;  // see Bootstrapper::FixupFlags decoders/encoders.
-    const char* name;
-  };
-  List<Unresolved>* unresolved() { return &unresolved_; }
-
   Handle<Object> CodeObject() { return code_object_; }
 
 
   // ---------------------------------------------------------------------------
   // StatsCounter support
 
   void SetCounter(StatsCounter* counter, int value);
   void IncrementCounter(StatsCounter* counter, int value);
   void DecrementCounter(StatsCounter* counter, int value);
   void IncrementCounter(Condition cc, StatsCounter* counter, int value);
@@ skipping 15 matching lines @@
 
   // Verify restrictions about code generated in stubs.
   void set_generating_stub(bool value) { generating_stub_ = value; }
   bool generating_stub() { return generating_stub_; }
   void set_allow_stub_calls(bool value) { allow_stub_calls_ = value; }
   bool allow_stub_calls() { return allow_stub_calls_; }
 
   // ---------------------------------------------------------------------------
   // String utilities.
 
+  // Check whether the instance type represents a flat ascii string. Jump to the
+  // label if not. If the instance type can be scratched specify same register
+  // for both instance type and scratch.
+  void JumpIfInstanceTypeIsNotSequentialAscii(Register instance_type,
+                                              Register scratch,
+                                              Label *on_not_flat_ascii_string);
+
   // Checks if both objects are sequential ASCII strings, and jumps to label
   // if either is not.
   void JumpIfNotBothSequentialAsciiStrings(Register object1,
                                            Register object2,
                                            Register scratch1,
                                            Register scratch2,
                                            Label *on_not_flat_ascii_strings);
 
  private:
-  List<Unresolved> unresolved_;
   bool generating_stub_;
   bool allow_stub_calls_;
   // This handle will be patched with the code object on installation.
   Handle<Object> code_object_;
 
   // Helper functions for generating invokes.
   void InvokePrologue(const ParameterCount& expected,
                       const ParameterCount& actual,
                       Handle<Code> code_constant,
                       const Operand& code_operand,
                       Label* done,
                       InvokeFlag flag);
 
-  // Prepares for a call or jump to a builtin by doing two things:
-  // 1. Emits code that fetches the builtin's function object from the context
-  //    at runtime, and puts it in the register rdi.
-  // 2. Fetches the builtin's code object, and returns it in a handle, at
-  //    compile time, so that later code can emit instructions to jump or call
-  //    the builtin directly.  If the code object has not yet been created, it
-  //    returns the builtin code object for IllegalFunction, and sets the
-  //    output parameter "resolved" to false.  Code that uses the return value
-  //    should then add the address and the builtin name to the list of fixups
-  //    called unresolved_, which is fixed up by the bootstrapper.
-  Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved);
-
   // Activation support.
   void EnterFrame(StackFrame::Type type);
   void LeaveFrame(StackFrame::Type type);
 
   void EnterExitFramePrologue(ExitFrame::Mode mode);
   void EnterExitFrameEpilogue(ExitFrame::Mode mode, int argc);
 
   // Allocation support helpers.
   void LoadAllocationTopHelper(Register result,
                                Register result_end,
@@ skipping 66 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_