MIPS: Implement missing functions in regexp-macro-assembler.

src/mips/regexp-macro-assembler-mips.cc

 // Copyright 2012 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 460 matching lines @@
   __ And(a0, current_character(), Operand(mask));
   BranchOrBacktrack(on_not_equal, ne, a0, Operand(c));
 }
 
 
 void RegExpMacroAssemblerMIPS::CheckNotCharacterAfterMinusAnd(
     uc16 c,
     uc16 minus,
     uc16 mask,
     Label* on_not_equal) {
-  UNIMPLEMENTED_MIPS();
+  ASSERT(minus < String::kMaxUtf16CodeUnit);
+  __ Subu(a0, current_character(), Operand(minus));
+  __ And(a0, a0, Operand(mask));
+  BranchOrBacktrack(on_not_equal, ne, a0, Operand(c));
 }
 
 
 void RegExpMacroAssemblerMIPS::CheckCharacterInRange(
     uc16 from,
     uc16 to,
     Label* on_in_range) {
   __ Subu(a0, current_character(), Operand(from));
   // Unsigned lower-or-same condition.
   BranchOrBacktrack(on_in_range, ls, a0, Operand(to - from));
@@ skipping 814 matching lines @@
 }
 
 
 #undef __
 
 #endif  // V8_INTERPRETED_REGEXP
 
 }}  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS