Inline some more compare operations.

src/hydrogen.cc

 // Copyright 2013 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 8274 matching lines @@
   } else if (combined_type->Is(Type::InternalizedString()) &&
              Token::IsEqualityOp(op)) {
     BuildCheckHeapObject(left);
     AddInstruction(HCheckInstanceType::NewIsInternalizedString(left, zone()));
     BuildCheckHeapObject(right);
     AddInstruction(HCheckInstanceType::NewIsInternalizedString(right, zone()));
     HCompareObjectEqAndBranch* result =
         New<HCompareObjectEqAndBranch>(left, right);
     result->set_position(expr->position());
     return ast_context()->ReturnControl(result, expr->id());
+  } else if (combined_type->Is(Type::String())) {
+    BuildCheckHeapObject(left);
+    AddInstruction(HCheckInstanceType::NewIsString(left, zone()));
+    BuildCheckHeapObject(right);
+    AddInstruction(HCheckInstanceType::NewIsString(right, zone()));
+    HStringCompareAndBranch* result =
+        New<HStringCompareAndBranch>(left, right, op);
+    result->set_position(expr->position());
+    return ast_context()->ReturnControl(result, expr->id());
+  } else if (combined_type->NumClasses() == 1 &&

[Hannes Payer (out of office), 2013/10/02 13:33:19]

fits in one line

+             Token::IsEqualityOp(op)) {
+    BuildCheckHeapObject(left);
+    BuildCheckMap(left, combined_type->Classes().Current());
+    BuildCheckHeapObject(right);
+    BuildCheckMap(right, combined_type->Classes().Current());
+    HCompareObjectEqAndBranch* result =
+        New<HCompareObjectEqAndBranch>(left, right);
+    result->set_position(expr->position());
+    return ast_context()->ReturnInstruction(result, expr->id());
+  } else if (combined_type->Is(Type::Receiver()) &&

[Hannes Payer (out of office), 2013/10/02 13:33:19]

fits in one line

+             Token::IsEqualityOp(op)) {
+    BuildCheckHeapObject(left);
+    AddInstruction(HCheckInstanceType::NewIsSpecObject(left, zone()));
+    BuildCheckHeapObject(right);
+    AddInstruction(HCheckInstanceType::NewIsSpecObject(right, zone()));
+    HCompareObjectEqAndBranch* result =
+        New<HCompareObjectEqAndBranch>(left, right);
+    result->set_position(expr->position());
+    return ast_context()->ReturnInstruction(result, expr->id());
   } else {
     if (combined_rep.IsTagged() || combined_rep.IsNone()) {
       HCompareGeneric* result =
           new(zone()) HCompareGeneric(context, left, right, op);
       result->set_observed_input_representation(1, left_rep);
       result->set_observed_input_representation(2, right_rep);
       result->set_position(expr->position());
       return ast_context()->ReturnInstruction(result, expr->id());
     } else {
       HCompareNumericAndBranch* result =
@@ skipping 1542 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal