Case independent back references.

src/regexp-macro-assembler-ia32.cc

 // 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 195 matching lines @@
 }
 
 
 void RegExpMacroAssemblerIA32::CheckCurrentPosition(int register_index,
                                                     Label* on_equal) {
   __ cmp(edi, register_location(register_index));
   BranchOrBacktrack(equal, on_equal);
 }
 
 
+void RegExpMacroAssemblerIA32::CheckNotBackReferenceCaseIndependent(
+    int start_reg, Label* on_no_match) {
+  UNIMPLEMENTED();
+}
+
+
 void RegExpMacroAssemblerIA32::CheckNotBackReference(
     int start_reg, Label* on_no_match) {
-  if (ignore_case_) {
-    UNIMPLEMENTED();
-  }
   Label fallthrough;
   __ mov(eax, register_location(start_reg));
   __ mov(ecx, register_location(start_reg + 1));
   __ sub(ecx, Operand(eax));  // Length to check.
   __ j(equal, &fallthrough);  // Covers the case where it's not bound (-1,-1).
   __ mov(ebx, Operand(edi));
   __ push(esi);
   __ add(edi, Operand(esi));
   __ add(esi, Operand(eax));
   if (mode_ == ASCII) {
@@ skipping 365 matching lines @@
 
 
 void RegExpMacroAssemblerIA32::LoadConstantBufferAddress(Register reg,
                                                          ArraySlice* buffer) {
   __ mov(reg, buffer->array());
   __ add(Operand(reg), Immediate(buffer->base_offset()));
 }
 
 #undef __
 }}