IA32: Optimize instanceof...

src/ia32/lithium-ia32.cc

 // Copyright 2010 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 1260 matching lines @@
                                     second_id);
     } else if (v->IsCompareJSObjectEq()) {
       HCompareJSObjectEq* compare = HCompareJSObjectEq::cast(v);
       return new LCmpJSObjectEqAndBranch(UseRegisterAtStart(compare->left()),
                                          UseRegisterAtStart(compare->right()),
                                          first_id,
                                          second_id);
     } else if (v->IsInstanceOf()) {
       HInstanceOf* instance_of = HInstanceOf::cast(v);
       LInstruction* result =
-          new LInstanceOfAndBranch(Use(instance_of->left()),
-                                   Use(instance_of->right()),
+          new LInstanceOfAndBranch(UseFixed(instance_of->left(), eax),
+                                   UseFixed(instance_of->right(), edx),
                                    first_id,
                                    second_id);
       return MarkAsCall(result, instr);
     } else if (v->IsTypeofIs()) {
       HTypeofIs* typeof_is = HTypeofIs::cast(v);
       return new LTypeofIsAndBranch(UseTempRegister(typeof_is->value()),
                                     first_id,
                                     second_id);
     } else {
       if (v->IsConstant()) {
@@ skipping 29 matching lines @@
 }
 
 
 LInstruction* LChunkBuilder::DoArgumentsElements(HArgumentsElements* elems) {
   return DefineAsRegister(new LArgumentsElements);
 }
 
 
 LInstruction* LChunkBuilder::DoInstanceOf(HInstanceOf* instr) {
   LInstruction* result =
-      new LInstanceOf(Use(instr->left()), Use(instr->right()));
+      new LInstanceOf(UseFixed(instr->left(), eax),
+                      UseFixed(instr->right(), edx));
   return MarkAsCall(DefineFixed(result, eax), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoApplyArguments(HApplyArguments* instr) {
   LOperand* function = UseFixed(instr->function(), edi);
   LOperand* receiver = UseFixed(instr->receiver(), eax);
   LOperand* length = UseRegisterAtStart(instr->length());
   LOperand* elements = UseRegisterAtStart(instr->elements());
   LInstruction* result = new LApplyArguments(function,
@@ skipping 788 matching lines @@
 void LPointerMap::PrintTo(StringStream* stream) const {
   stream->Add("{");
   for (int i = 0; i < pointer_operands_.length(); ++i) {
     if (i != 0) stream->Add(";");
     pointer_operands_[i]->PrintTo(stream);
   }
   stream->Add("} @%d", position());
 }
 
 } }  // namespace v8::internal