Shorten live ranges of argument subexpressions.

src/arm/lithium-arm.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 270 matching lines @@
 }
 
 
 void LCallGlobal::PrintDataTo(StringStream* stream) const {
   SmartPointer<char> name_string = name()->ToCString();
   stream->Add("%s #%d / ", *name_string, arity());
 }
 
 
 void LCallKnownGlobal::PrintDataTo(StringStream* stream) const {
-  stream->Add("#%d / ", arity());
+  LUnaryOperation::PrintDataTo(stream);
+  stream->Add(" #%d / ", arity());
 }
 
 
 void LCallNew::PrintDataTo(StringStream* stream) const {
   LUnaryOperation::PrintDataTo(stream);
   stream->Add(" #%d / ", arity());
 }
 
 
 void LClassOfTest::PrintDataTo(StringStream* stream) const {
@@ skipping 1044 matching lines @@
 }
 
 
 LInstruction* LChunkBuilder::DoGlobalReceiver(HGlobalReceiver* instr) {
   return DefineAsRegister(new LGlobalReceiver);
 }
 
 
 LInstruction* LChunkBuilder::DoCallConstantFunction(
     HCallConstantFunction* instr) {
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   return MarkAsCall(DefineFixed(new LCallConstantFunction, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
   BuiltinFunctionId op = instr->op();
   LOperand* input = UseRegisterAtStart(instr->value());
   LInstruction* result = new LUnaryMathOperation(input);
   switch (op) {
     case kMathAbs:
@@ skipping 10 matching lines @@
       return NULL;
     default:
       UNREACHABLE();
       return NULL;
   }
 }
 
 
 LInstruction* LChunkBuilder::DoCallKeyed(HCallKeyed* instr) {
   ASSERT(instr->key()->representation().IsTagged());
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   UseFixed(instr->key(), r2);
   return MarkAsCall(DefineFixed(new LCallKeyed, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoCallNamed(HCallNamed* instr) {
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   return MarkAsCall(DefineFixed(new LCallNamed, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoCallGlobal(HCallGlobal* instr) {
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   return MarkAsCall(DefineFixed(new LCallGlobal, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoCallKnownGlobal(HCallKnownGlobal* instr) {
-  argument_count_ -= instr->argument_count();
+  LOperand* receiver = UseFixed(instr->receiver(), r0);
+  DecrementArgumentCount(instr->argument_count());
   return MarkAsCall(DefineFixed(new LCallKnownGlobal, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoCallNew(HCallNew* instr) {
   LOperand* constructor = UseFixed(instr->constructor(), r1);
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   LInstruction* result = new LCallNew(constructor);
   return MarkAsCall(DefineFixed(result, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoCallFunction(HCallFunction* instr) {
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   return MarkAsCall(DefineFixed(new LCallFunction, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoCallRuntime(HCallRuntime* instr) {
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   return MarkAsCall(DefineFixed(new LCallRuntime, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoShr(HShr* instr) {
   return DoShift(Token::SHR, instr);
 }
 
 
 LInstruction* LChunkBuilder::DoSar(HSar* instr) {
@@ skipping 556 matching lines @@
 }
 
 
 LInstruction* LChunkBuilder::DoUnknownOSRValue(HUnknownOSRValue* instr) {
   int spill_index = chunk()->GetNextSpillIndex(false);  // Not double-width.
   return DefineAsSpilled(new LUnknownOSRValue, spill_index);
 }
 
 
 LInstruction* LChunkBuilder::DoCallStub(HCallStub* instr) {
-  argument_count_ -= instr->argument_count();
+  DecrementArgumentCount(instr->argument_count());
   return MarkAsCall(DefineFixed(new LCallStub, r0), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoArgumentsObject(HArgumentsObject* instr) {
   // There are no real uses of the arguments object (we bail out in all other
   // cases).
   return NULL;
 }
 
@@ skipping 60 matching lines @@
   return MarkAsCall(new LStackCheck, instr);
 }
 
 
 LInstruction* LChunkBuilder::DoEnterInlined(HEnterInlined* instr) {
   HEnvironment* outer = current_block_->last_environment();
   HConstant* undefined = graph()->GetConstantUndefined();
   HEnvironment* inner = outer->CopyForInlining(instr->closure(),
                                                instr->function(),
                                                false,
-                                               undefined);
+                                               undefined,
+                                               NULL);
   current_block_->UpdateEnvironment(inner);
   chunk_->AddInlinedClosure(instr->closure());
   return NULL;
 }
 
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
   HEnvironment* outer = current_block_->last_environment()->outer();
   current_block_->UpdateEnvironment(outer);
   return NULL;
@@ skipping 11 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