Merge experimental/gc branch to the bleeding_edge.

src/assembler.h

Index: src/assembler.h
===================================================================
--- src/assembler.h	(revision 9327)
+++ src/assembler.h	(working copy)
@@ -143,6 +143,9 @@
 };
 
 
+enum SaveFPRegsMode { kDontSaveFPRegs, kSaveFPRegs };
+
+
 // -----------------------------------------------------------------------------
 // Relocation information
 
@@ -216,8 +219,9 @@
 
 
   RelocInfo() {}
-  RelocInfo(byte* pc, Mode rmode, intptr_t data)
-      : pc_(pc), rmode_(rmode), data_(data) {
+
+  RelocInfo(byte* pc, Mode rmode, intptr_t data, Code* host)
+      : pc_(pc), rmode_(rmode), data_(data), host_(host) {
   }
 
   static inline bool IsConstructCall(Mode mode) {
@@ -258,6 +262,7 @@
   void set_pc(byte* pc) { pc_ = pc; }
   Mode rmode() const {  return rmode_; }
   intptr_t data() const { return data_; }
+  Code* host() const { return host_; }
 
   // Apply a relocation by delta bytes
   INLINE(void apply(intptr_t delta));
@@ -353,6 +358,7 @@
   byte* pc_;
   Mode rmode_;
   intptr_t data_;
+  Code* host_;
 #ifdef V8_TARGET_ARCH_MIPS
   // Code and Embedded Object pointers in mips are stored split
   // across two consecutive 32-bit instructions. Heap management
@@ -561,6 +567,12 @@
   // pattern. This means that they have to be added to the
   // ExternalReferenceTable in serialize.cc manually.
 
+  static ExternalReference incremental_marking_record_write_function(
+      Isolate* isolate);
+  static ExternalReference incremental_evacuation_record_write_function(
+      Isolate* isolate);
+  static ExternalReference store_buffer_overflow_function(
+      Isolate* isolate);
   static ExternalReference flush_icache_function(Isolate* isolate);
   static ExternalReference perform_gc_function(Isolate* isolate);
   static ExternalReference fill_heap_number_with_random_function(
@@ -607,7 +619,11 @@
   static ExternalReference new_space_start(Isolate* isolate);
   static ExternalReference new_space_mask(Isolate* isolate);
   static ExternalReference heap_always_allocate_scope_depth(Isolate* isolate);
+  static ExternalReference new_space_mark_bits(Isolate* isolate);
 
+  // Write barrier.
+  static ExternalReference store_buffer_top(Isolate* isolate);
+
   // Used for fast allocation in generated code.
   static ExternalReference new_space_allocation_top_address(Isolate* isolate);
   static ExternalReference new_space_allocation_limit_address(Isolate* isolate);