Generate the TransitionElementsStub using Crankshaft

src/ia32/lithium-ia32.cc

 // Copyright 2012 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 2140 matching lines @@
   ASSERT(instr->value()->representation().IsTagged());
 
   LStoreKeyedGeneric* result =
       new(zone()) LStoreKeyedGeneric(context, object, key, value);
   return MarkAsCall(result, instr);
 }
 
 
 LInstruction* LChunkBuilder::DoTransitionElementsKind(
     HTransitionElementsKind* instr) {
+  LOperand* object = UseRegister(instr->object());
   if (IsSimpleMapChangeTransition(instr->from_kind(), instr->to_kind())) {
     LOperand* object = UseRegister(instr->object());
     LOperand* new_map_reg = TempRegister();
     LOperand* temp_reg = TempRegister();
     LTransitionElementsKind* result =
-        new(zone()) LTransitionElementsKind(object, new_map_reg, temp_reg);
-    return DefineSameAsFirst(result);
+        new(zone()) LTransitionElementsKind(object, NULL,
+                                            new_map_reg, temp_reg);
+    return result;
   } else {
-    LOperand* object = UseFixed(instr->object(), eax);
-    LOperand* fixed_object_reg = FixedTemp(edx);
-    LOperand* new_map_reg = FixedTemp(ebx);
+    LOperand* context = UseRegister(instr->context());
     LTransitionElementsKind* result =
-        new(zone()) LTransitionElementsKind(object,
-                                            new_map_reg,
-                                            fixed_object_reg);
-    return MarkAsCall(DefineFixed(result, eax), instr);
+        new(zone()) LTransitionElementsKind(object, context, NULL, NULL);
+    return AssignPointerMap(result);
   }
 }
 
 
+LInstruction* LChunkBuilder::DoTrapAllocationMemento(
+    HTrapAllocationMemento* instr) {
+  LOperand* object = UseRegister(instr->object());
+  LOperand* temp = TempRegister();
+  LTrapAllocationMemento* result =
+      new(zone()) LTrapAllocationMemento(object, temp);
+  return AssignEnvironment(result);
+}
+
+
 LInstruction* LChunkBuilder::DoStoreNamedField(HStoreNamedField* instr) {
   bool needs_write_barrier = instr->NeedsWriteBarrier();
   bool needs_write_barrier_for_map = !instr->transition().is_null() &&
       instr->NeedsWriteBarrierForMap();
 
   LOperand* obj;
   if (needs_write_barrier) {
     obj = instr->is_in_object()
         ? UseRegister(instr->object())
         : UseTempRegister(instr->object());
@@ skipping 58 matching lines @@
 }
 
 
 LInstruction* LChunkBuilder::DoStringLength(HStringLength* instr) {
   LOperand* string = UseRegisterAtStart(instr->value());
   return DefineAsRegister(new(zone()) LStringLength(string));
 }
 
 
 LInstruction* LChunkBuilder::DoAllocateObject(HAllocateObject* instr) {
-  LOperand* context = UseFixed(instr->context(), esi);
+  LOperand* context = UseAny(instr->context());

[Michael Starzinger, 2013/01/31 13:15:10]

It seems info()->MarkAsDeferredCalling() is missing for LAllocateObject.

[danno, 2013/01/31 15:53:25]

Done.

   LOperand* temp = TempRegister();
   LAllocateObject* result = new(zone()) LAllocateObject(context, temp);
   return AssignPointerMap(DefineAsRegister(result));
 }
 
 
+LInstruction* LChunkBuilder::DoAllocate(HAllocate* instr) {
+  info()->MarkAsDeferredCalling();
+  LOperand* context = UseAny(instr->context());
+  LOperand* size = UseTempRegister(instr->size());
+  LOperand* temp = TempRegister();
+  LAllocate* result = new(zone()) LAllocate(context, size, temp);
+  return AssignPointerMap(DefineAsRegister(result));
+}
+
+
 LInstruction* LChunkBuilder::DoFastLiteral(HFastLiteral* instr) {
   LOperand* context = UseFixed(instr->context(), esi);
   return MarkAsCall(
       DefineFixed(new(zone()) LFastLiteral(context), eax), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoArrayLiteral(HArrayLiteral* instr) {
   LOperand* context = UseFixed(instr->context(), esi);
   return MarkAsCall(
@@ skipping 235 matching lines @@
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseTempRegister(instr->index());
   return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32