[Isolates] Merge crankshaft (r5922 from bleeding_edge).

src/x64/macro-assembler-x64.h

-// Copyright 2009 the V8 project authors. All rights reserved.
+// 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.
@@ skipping 118 matching lines @@
                          Register scratch);
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // ---------------------------------------------------------------------------
   // Debugger Support
 
   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
 
   void EnterInternalFrame() { EnterFrame(StackFrame::INTERNAL); }
   void LeaveInternalFrame() { LeaveFrame(StackFrame::INTERNAL); }
 
   void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); }
   void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); }
 
   // Enter specific kind of exit frame; either in normal or
   // debug mode. Expects the number of arguments in register rax and
@@ skipping 10 matching lines @@
 
   // Leave the current exit frame. Expects/provides the return value in
   // register rax:rdx (untouched) and the pointer to the first
   // argument in register rsi.
   void LeaveExitFrame();
 
   // Leave the current exit frame. Expects/provides the return value in
   // register rax (untouched).
   void LeaveApiExitFrame();
 
+  // Push and pop the registers that can hold pointers.
+  void PushSafepointRegisters() { UNIMPLEMENTED(); }
+  void PopSafepointRegisters() { UNIMPLEMENTED(); }
+  static int SafepointRegisterStackIndex(int reg_code) {
+    UNIMPLEMENTED();
+    return 0;
+  }
+
   // ---------------------------------------------------------------------------
   // JavaScript invokes
 
   // Invoke the JavaScript function code by either calling or jumping.
   void InvokeCode(Register code,
                   const ParameterCount& expected,
                   const ParameterCount& actual,
                   InvokeFlag flag);
 
   void InvokeCode(Handle<Code> code,
@@ skipping 1552 matching lines @@
       Jump(adaptor, RelocInfo::CODE_TARGET);
     }
     bind(&invoke);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_MACRO_ASSEMBLER_X64_H_