Allow comparison in UINT32 mode.

src/mips/lithium-codegen-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.7
 // 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 2259 matching lines @@
     default:
       UNREACHABLE();
   }
   return cond;
 }
 
 
 void LCodeGen::DoCompareNumericAndBranch(LCompareNumericAndBranch* instr) {
   LOperand* left = instr->left();
   LOperand* right = instr->right();
-  Condition cond = TokenToCondition(instr->op(), false);
+  bool is_unsigned = instr->hydrogen()->CheckFlag(HInstruction::kUint32);
+  Condition cc = TokenToCondition(instr->op(), is_unsigned);
 
   if (left->IsConstantOperand() && right->IsConstantOperand()) {
     // We can statically evaluate the comparison.
     double left_val = ToDouble(LConstantOperand::cast(left));
     double right_val = ToDouble(LConstantOperand::cast(right));
     int next_block = EvalComparison(instr->op(), left_val, right_val) ?
         instr->TrueDestination(chunk_) : instr->FalseDestination(chunk_);
     EmitGoto(next_block);
   } else {
     if (instr->is_double()) {
@@ skipping 3632 matching lines @@
   __ lw(result, FieldMemOperand(scratch,
                                 FixedArray::kHeaderSize - kPointerSize));
   __ bind(deferred->exit());
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal