Preview of a first step towards unification of hydrogen calls

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 08f872859cc27c207f0a16411d04e1a82edd165e..470469fb9ed09b38a25e367a9c730f87b6d06ffd 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -277,7 +277,18 @@ void LInnerAllocatedObject::PrintDataTo(StringStream* stream) {
 }
 
 
-void LCallConstantFunction::PrintDataTo(StringStream* stream) {
+void LCallJSFunction::PrintDataTo(StringStream* stream) {
+  stream->Add("= ");
+  function()->PrintTo(stream);
+  stream->Add("#%d / ", arity());
+}
+
+
+void LCallWithDescriptor::PrintDataTo(StringStream* stream) {
+  for (int i = 0; i < InputCount(); i++) {
+    InputAt(i)->PrintTo(stream);
+    stream->Add(" ");
+  }
   stream->Add("#%d / ", arity());
 }
 
@@ -302,22 +313,6 @@ void LInvokeFunction::PrintDataTo(StringStream* stream) {
 }
 
 
-void LCallKeyed::PrintDataTo(StringStream* stream) {
-  stream->Add("[r2] #%d / ", arity());
-}
-
-
-void LCallNamed::PrintDataTo(StringStream* stream) {
-  SmartArrayPointer<char> name_string = name()->ToCString();
-  stream->Add("%s #%d / ", name_string.get(), arity());
-}
-
-
-void LCallKnownGlobal::PrintDataTo(StringStream* stream) {
-  stream->Add("#%d / ", arity());
-}
-
-
 void LCallNew::PrintDataTo(StringStream* stream) {
   stream->Add("= ");
   constructor()->PrintTo(stream);
@@ -557,8 +552,7 @@ LOperand* LChunkBuilder::Use(HValue* value, LUnallocated* operand) {
 }
 
 
-template<int I, int T>
-LInstruction* LChunkBuilder::Define(LTemplateInstruction<1, I, T>* instr,
+LInstruction* LChunkBuilder::Define(LTemplateResultInstruction<1>* instr,
                                     LUnallocated* result) {
   result->set_virtual_register(current_instruction_->id());
   instr->set_result(result);
@@ -566,40 +560,35 @@ LInstruction* LChunkBuilder::Define(LTemplateInstruction<1, I, T>* instr,
 }
 
 
-template<int I, int T>
 LInstruction* LChunkBuilder::DefineAsRegister(
-    LTemplateInstruction<1, I, T>* instr) {
+    LTemplateResultInstruction<1>* instr) {
   return Define(instr,
                 new(zone()) LUnallocated(LUnallocated::MUST_HAVE_REGISTER));
 }
 
 
-template<int I, int T>
 LInstruction* LChunkBuilder::DefineAsSpilled(
-    LTemplateInstruction<1, I, T>* instr, int index) {
+    LTemplateResultInstruction<1>* instr, int index) {
   return Define(instr,
                 new(zone()) LUnallocated(LUnallocated::FIXED_SLOT, index));
 }
 
 
-template<int I, int T>
 LInstruction* LChunkBuilder::DefineSameAsFirst(
-    LTemplateInstruction<1, I, T>* instr) {
+    LTemplateResultInstruction<1>* instr) {
   return Define(instr,
                 new(zone()) LUnallocated(LUnallocated::SAME_AS_FIRST_INPUT));
 }
 
 
-template<int I, int T>
 LInstruction* LChunkBuilder::DefineFixed(
-    LTemplateInstruction<1, I, T>* instr, Register reg) {
+    LTemplateResultInstruction<1>* instr, Register reg) {
   return Define(instr, ToUnallocated(reg));
 }
 
 
-template<int I, int T>
 LInstruction* LChunkBuilder::DefineFixedDouble(
-    LTemplateInstruction<1, I, T>* instr, DoubleRegister reg) {
+    LTemplateResultInstruction<1>* instr, DoubleRegister reg) {
   return Define(instr, ToUnallocated(reg));
 }
 
@@ -1077,9 +1066,32 @@ LInstruction* LChunkBuilder::DoGlobalReceiver(HGlobalReceiver* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoCallConstantFunction(
-    HCallConstantFunction* instr) {
-  return MarkAsCall(DefineFixed(new(zone()) LCallConstantFunction, r0), instr);
+LInstruction* LChunkBuilder::DoCallJSFunction(
+    HCallJSFunction* instr) {
+  LOperand* function = UseFixed(instr->function(), r1);
+
+  LCallJSFunction* result = new(zone()) LCallJSFunction(function);
+
+  return MarkAsCall(DefineFixed(result, r0), instr);
+}
+
+
+LInstruction* LChunkBuilder::DoCallWithDescriptor(
+    HCallWithDescriptor* instr) {
+  const CallInterfaceDescriptor* descriptor = instr->descriptor();
+
+  LOperand* target = UseRegisterOrConstantAtStart(instr->target());
+  ZoneList<LOperand*> ops(instr->OperandCount(), zone());
+  ops.Add(target, zone());
+  for (int i = 1; i < instr->OperandCount(); i++) {
+    LOperand* op = UseFixed(instr->OperandAt(i),
+        descriptor->GetParameterRegister(i - 1));
+    ops.Add(op, zone());
+  }
+
+  LCallWithDescriptor* result = new(zone()) LCallWithDescriptor(
+      descriptor, ops, zone());
+  return MarkAsCall(DefineFixed(result, r0), instr);
 }
 
 
@@ -1167,26 +1179,6 @@ LInstruction* LChunkBuilder::DoMathPowHalf(HUnaryMathOperation* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoCallKeyed(HCallKeyed* instr) {
-  ASSERT(instr->key()->representation().IsTagged());
-  LOperand* context = UseFixed(instr->context(), cp);
-  LOperand* key = UseFixed(instr->key(), r2);
-  return MarkAsCall(
-        DefineFixed(new(zone()) LCallKeyed(context, key), r0), instr);
-}
-
-
-LInstruction* LChunkBuilder::DoCallNamed(HCallNamed* instr) {
-  LOperand* context = UseFixed(instr->context(), cp);
-  return MarkAsCall(DefineFixed(new(zone()) LCallNamed(context), r0), instr);
-}
-
-
-LInstruction* LChunkBuilder::DoCallKnownGlobal(HCallKnownGlobal* instr) {
-  return MarkAsCall(DefineFixed(new(zone()) LCallKnownGlobal, r0), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoCallNew(HCallNew* instr) {
   LOperand* context = UseFixed(instr->context(), cp);
   LOperand* constructor = UseFixed(instr->constructor(), r1);