Improve moves of Smi and null objects. Add result cid to List constructor calls. Add tracing of inl…

runtime/vm/flow_graph_compiler_ia32.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "lib/error.h"
@@ skipping 1333 matching lines @@
   // TODO(vegorov): allocate temporary register for such moves.
   __ pushl(EAX);
   __ movl(EAX, src);
   __ movl(dst, EAX);
   __ popl(EAX);
 }
 
 
 void ParallelMoveResolver::StoreObject(const Address& dst, const Object& obj) {
   // TODO(vegorov): allocate temporary register for such moves.
-  __ pushl(EAX);
-  __ LoadObject(EAX, obj);
-  __ movl(dst, EAX);
-  __ popl(EAX);
+  if (obj.IsSmi() || obj.IsNull()) {
+    __ movl(dst, Immediate(reinterpret_cast<int32_t>(obj.raw())));
+  } else {
+    __ pushl(EAX);
+    __ LoadObject(EAX, obj);
+    __ movl(dst, EAX);
+    __ popl(EAX);
+  }
 }
 
 
 void ParallelMoveResolver::Exchange(Register reg, const Address& mem) {
   // TODO(vegorov): allocate temporary register for such moves.
   Register scratch = (reg == EAX) ? ECX : EAX;
   __ pushl(scratch);
   __ movl(scratch, mem);
   __ xchgl(scratch, reg);
   __ movl(mem, scratch);
@@ skipping 12 matching lines @@
   __ popl(ECX);
   __ popl(EAX);
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32