* Implemented case-insensitive back-reference matching in irregexp-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 101 matching lines @@
   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;
+
+  // Compares two-byte strings case insenstively.
+  static int CaseInsensitiveCompareUC16(uc16** buffer,
+                                        int byte_offset1,
+                                        int byte_offset2,
+                                        size_t byte_length);
 
   // The ebp-relative location of a regexp register.
   Operand register_location(int register_index);
 
   // The register containing the current character after LoadCurrentCharacter.
   Register current_character();
 
   // Byte size of chars in the string to match (decided by the Mode argument)
   size_t char_size();
 
@@ skipping 30 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_ */