Add support for IncrementCounter in Hydrogen.

src/mips/lithium-codegen-mips.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 1640 matching lines @@
 
 
 void LCodeGen::DoConstantD(LConstantD* instr) {
   ASSERT(instr->result()->IsDoubleRegister());
   DoubleRegister result = ToDoubleRegister(instr->result());
   double v = instr->value();
   __ Move(result, v);
 }
 
 
+void LCodeGen::DoConstantE(LConstantE* instr) {
+  __ li(ToRegister(instr->result()), Operand(instr->value()));
+}
+
+
 void LCodeGen::DoConstantT(LConstantT* instr) {
   Handle<Object> value = instr->value();
   AllowDeferredHandleDereference smi_check;
   __ LoadObject(ToRegister(instr->result()), value);
 }
 
 
 void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) {
   Register result = ToRegister(instr->result());
   Register map = ToRegister(instr->value());
@@ skipping 1200 matching lines @@
   }
 
   __ bind(&skip_assignment);
 }
 
 
 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());
+    __ lw(result, MemOperand(object, offset));
+    return;
+  }
+
   if (instr->hydrogen()->representation().IsDouble()) {
     DoubleRegister result = ToDoubleRegister(instr->result());
     __ ldc1(result, FieldMemOperand(object, offset));
     return;
   }
 
   Register result = ToRegister(instr->result());
   if (access.IsInobject()) {
     __ lw(result, FieldMemOperand(object, offset));
   } else {
@@ skipping 1217 matching lines @@
 
 
 void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
   Representation representation = instr->representation();
 
   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());
+    __ sw(value, MemOperand(object, offset));
+    return;
+  }
+
   Handle<Map> transition = instr->transition();
 
   if (FLAG_track_heap_object_fields && representation.IsHeapObject()) {
     Register value = ToRegister(instr->value());
     if (!instr->hydrogen()->value()->type().IsHeapObject()) {
       __ And(scratch, value, Operand(kSmiTagMask));
       DeoptimizeIf(eq, instr->environment(), scratch, Operand(zero_reg));
     }
   } else if (FLAG_track_double_fields && representation.IsDouble()) {
     ASSERT(transition.is_null());
@@ skipping 1708 matching lines @@
   __ Subu(scratch, result, scratch);
   __ lw(result, FieldMemOperand(scratch,
                                 FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal