* Made preemption work in Irregexp-native-ia32

src/assembler-ia32.h

Index: src/assembler-ia32.h
diff --git a/src/assembler-ia32.h b/src/assembler-ia32.h
index 17c6b82d600fd41258127426b4d21c9eb1364eb4..2abf24aaa1cbf7cce44567705de7df1ce849a471 100644
--- a/src/assembler-ia32.h
+++ b/src/assembler-ia32.h
@@ -185,6 +185,10 @@ class Immediate BASE_EMBEDDED {
   inline explicit Immediate(Handle<Object> handle);
   inline explicit Immediate(Smi* value);
 
+  static Immediate CodeRelativeOffset(Label* label) {
+    return Immediate(label);
+  }
+
   bool is_zero() const { return x_ == 0 && rmode_ == RelocInfo::NONE; }
   bool is_int8() const {
     return -128 <= x_ && x_ < 128 && rmode_ == RelocInfo::NONE;
@@ -194,6 +198,8 @@ class Immediate BASE_EMBEDDED {
   }
 
  private:
+  inline explicit Immediate(Label* value);
+
   int x_;
   RelocInfo::Mode rmode_;
 
@@ -731,24 +737,6 @@ class Assembler : public Malloced {
 
 
  private:
-  // Code buffer:
-  // The buffer into which code and relocation info are generated.
-  byte* buffer_;
-  int buffer_size_;
-  // True if the assembler owns the buffer, false if buffer is external.
-  bool own_buffer_;
-
-  // code generation
-  byte* pc_;  // the program counter; moves forward
-  RelocInfoWriter reloc_info_writer;
-
-  // push-pop elimination
-  byte* last_pc_;
-
-  // source position information
-  int last_position_;
-  int last_statement_position_;
-
   byte* addr_at(int pos)  { return buffer_ + pos; }
   byte byte_at(int pos)  { return buffer_[pos]; }
   uint32_t long_at(int pos)  {
@@ -766,6 +754,9 @@ class Assembler : public Malloced {
   inline void emit(const Immediate& x);
   inline void emit_w(const Immediate& x);
 
+  // Emit the code-object-relative offset of the label's position
+  inline void emit_code_relative_offset(Label* label);
+
   // instruction generation
   void emit_arith_b(int op1, int op2, Register dst, int imm8);
 
@@ -794,6 +785,24 @@ class Assembler : public Malloced {
 
   friend class CodePatcher;
   friend class EnsureSpace;
+
+  // Code buffer:
+  // The buffer into which code and relocation info are generated.
+  byte* buffer_;
+  int buffer_size_;
+  // True if the assembler owns the buffer, false if buffer is external.
+  bool own_buffer_;
+
+  // code generation
+  byte* pc_;  // the program counter; moves forward
+  RelocInfoWriter reloc_info_writer;
+
+  // push-pop elimination
+  byte* last_pc_;
+
+  // source position information
+  int last_position_;
+  int last_statement_position_;
 };