Add support for IncrementCounter in Hydrogen.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 41636a817131400f798b648763b6a07f0cae2046..f6f537ae2ac8dfa1bf5c4ed79a2eed47d07af6a7 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -1815,6 +1815,11 @@ void LCodeGen::DoConstantD(LConstantD* instr) {
 }
 
 
+void LCodeGen::DoConstantE(LConstantE* instr) {
+  __ mov(ToRegister(instr->result()), Operand(instr->value()));
+}
+
+
 void LCodeGen::DoConstantT(LConstantT* instr) {
   Handle<Object> value = instr->value();
   AllowDeferredHandleDereference smi_check;
@@ -2995,6 +3000,13 @@ void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
   HObjectAccess access = instr->hydrogen()->access();
   int offset = access.offset();
   Register object = ToRegister(instr->object());
+
+  if (access.IsExternalMemory()) {
+    Register result = ToRegister(instr->result());
+    __ ldr(result, MemOperand(object, offset));
+    return;
+  }
+
   if (instr->hydrogen()->representation().IsDouble()) {
     DwVfpRegister result = ToDoubleRegister(instr->result());
     __ vldr(result, FieldMemOperand(object, offset));
@@ -4174,10 +4186,15 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
 
   Register object = ToRegister(instr->object());
   Register scratch = scratch0();
-
   HObjectAccess access = instr->hydrogen()->access();
   int offset = access.offset();
 
+  if (access.IsExternalMemory()) {
+    Register value = ToRegister(instr->value());
+    __ str(value, MemOperand(object, offset));
+    return;
+  }
+
   Handle<Map> transition = instr->transition();
 
   if (FLAG_track_heap_object_fields && representation.IsHeapObject()) {