Merge IR classes for different bitwise operations AND, OR and XOR into one class.

src/hydrogen.cc

 // Copyright 2011 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 5601 matching lines @@
     case Token::MUL:
       instr = new(zone()) HMul(context, left, right);
       break;
     case Token::MOD:
       instr = new(zone()) HMod(context, left, right);
       break;
     case Token::DIV:
       instr = new(zone()) HDiv(context, left, right);
       break;
     case Token::BIT_XOR:
-      instr = new(zone()) HBitXor(context, left, right);
-      break;
     case Token::BIT_AND:
-      instr = new(zone()) HBitAnd(context, left, right);
-      break;
     case Token::BIT_OR:
-      instr = new(zone()) HBitOr(context, left, right);
+      instr = new(zone()) HBitwise(expr->op(), context, left, right);
       break;
     case Token::SAR:
       instr = new(zone()) HSar(context, left, right);
       break;
     case Token::SHR:
       instr = new(zone()) HShr(context, left, right);
       break;
     case Token::SHL:
       instr = new(zone()) HShl(context, left, right);
       break;
@@ skipping 1380 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify(false);  // No full verify.
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal