* Fixes and tweaks to regexp-ia32.

src/regexp-macro-assembler-ia32.h

 // Copyright 2008 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 70 matching lines @@
   virtual void PushBacktrack(Label* label);
   virtual void PushCurrentPosition();
   virtual void PushRegister(int register_index);
   virtual void ReadCurrentPositionFromRegister(int reg);
   virtual void ReadStackPointerFromRegister(int reg);
   virtual void SetRegister(int register_index, int to);
   virtual void Succeed();
   virtual void WriteCurrentPositionToRegister(int reg);
   virtual void WriteStackPointerToRegister(int reg);
 
+  template <typename T>
+  static inline bool Execute(Code* code,
+                             T** input,
+                             int start_offset,
+                             int end_offset,
+                             int* output,
+                             bool at_start) {
+    typedef bool (*matcher)(T**, int, int, int*, int);
+    matcher matcher_func = FUNCTION_CAST<matcher>(code->entry());
+    int at_start_val = at_start ? 1 : 0;
+    return matcher_func(input, start_offset, end_offset, output, at_start_val);
+  }
+
  private:
   // Offsets from ebp of arguments to function.
   static const int kBackup_ebx = sizeof(uint32_t);
   static const int kBackup_edi = kBackup_ebx + sizeof(uint32_t);
   static const int kBackup_esi = kBackup_edi + sizeof(uint32_t);
   static const int kReturn_eip = kBackup_esi + sizeof(uint32_t);
   static const int kInputBuffer = kReturn_eip + sizeof(uint32_t);
   static const int kInputStartOffset = kInputBuffer + sizeof(uint32_t);
   static const int kInputEndOffset = kInputStartOffset + sizeof(uint32_t);
   static const int kRegisterOutput = kInputEndOffset + sizeof(uint32_t);
+  static const int kAtStart = kRegisterOutput + sizeof(uint32_t);
 
   // Initial size of code buffer.
   static const size_t kRegExpCodeSize = 1024;
   // Initial size of constant buffers allocated during compilation.
   static const int kRegExpConstantsSize = 256;
   // Only unroll loops up to this length.
   static const int kMaxInlineStringTests = 8;
   // Special "character" marking end of input.
   static const uint32_t kEndOfInput = ~0;
 
   // The ebp-relative location of a regexp register.
   Operand register_location(int register_index);
 
   // Byte size of chars in the string to match (decided by the Mode argument)
   size_t char_size();
 
-  // Records that a register is used. At the end, we need the number of
-  // registers used.
-  void RecordRegister(int register_index);
-
   // Equivalent to a conditional branch to the label, unless the label
   // is NULL, in which case it is a conditional Backtrack.
   void BranchOrBacktrack(Condition condition, Label* to);
 
   // Generate code to perform case-canonicalization on the register.
   void Canonicalize(Register register);
 
   // Read a character from input at the given offset from the current
   // position.
   void ReadChar(Register destination, int offset);
@@ skipping 26 matching lines @@
   Label start_label_;
   Label success_label_;
   Label exit_label_;
   // Handle used to represent the generated code object itself.
   Handle<Object> self_;
 };
 
 }}  // namespace v8::internal
 
 #endif /* REGEXP_MACRO_ASSEMBLER_IA32_H_ */