Merge up to 8597 to experimental/gc from the bleeding edge.

src/x64/assembler-x64.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 628 matching lines @@
   // Stack
   void pushfq();
   void popfq();
 
   void push(Immediate value);
   // Push a 32 bit integer, and guarantee that it is actually pushed as a
   // 32 bit value, the normal push will optimize the 8 bit case.
   void push_imm32(int32_t imm32);
   void push(Register src);
   void push(const Operand& src);
+  void push(Handle<Object> handle);
 
   void pop(Register dst);
   void pop(const Operand& dst);
 
   void enter(Immediate size);
   void leave();
 
   // Moves
   void movb(Register dst, const Operand& src);
   void movb(Register dst, Immediate imm);
@@ skipping 507 matching lines @@
   //
   // Note: The same Label can be used for forward and backward branches
   // but it may be bound only once.
 
   void bind(Label* L);  // binds an unbound label L to the current code position
 
   // Calls
   // Call near relative 32-bit displacement, relative to next instruction.
   void call(Label* L);
   void call(Handle<Code> target,
-            RelocInfo::Mode rmode,
+            RelocInfo::Mode rmode = RelocInfo::CODE_TARGET,
             unsigned ast_id = kNoASTId);
 
   // Calls directly to the given address using a relative offset.
   // Should only ever be used in Code objects for calls within the
   // same Code object. Should not be used when generating new code (use labels),
   // but only when patching existing code.
   void call(Address target);
 
   // Call near absolute indirect, address in register
   void call(Register adr);
@@ skipping 161 matching lines @@
   // The first argument is the reg field, the second argument is the r/m field.
   void emit_sse_operand(XMMRegister dst, XMMRegister src);
   void emit_sse_operand(XMMRegister reg, const Operand& adr);
   void emit_sse_operand(XMMRegister dst, Register src);
   void emit_sse_operand(Register dst, XMMRegister src);
 
   // Debugging
   void Print();
 
   // Check the code size generated from label to here.
-  int SizeOfCodeGeneratedSince(Label* l) { return pc_offset() - l->pos(); }
+  int SizeOfCodeGeneratedSince(Label* label) {
+    return pc_offset() - label->pos();
+  }
 
   // Mark address of the ExitJSFrame code.
   void RecordJSReturn();
 
   // Mark address of a debug break slot.
   void RecordDebugBreakSlot();
 
   // Record a comment relocation entry that can be used by a disassembler.
   // Use --code-comments to enable.
   void RecordComment(const char* msg, bool force = false);
@@ skipping 262 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_ASSEMBLER_X64_H_