commit 98893e146b0ff0e1fd1d7c29252f1d1e75a163f2
author Calin Juravle <calin@google.com> Fri Oct 02 21:05:03 2015 +0100
committer Calin Juravle <calin@google.com> Tue Oct 06 13:42:55 2015 +0100
tree a14bb10d039fcee10a7e0cacb494bb60d08b2039
parent 7b5c395e9a50f988ca2275a429df17b6abbcc475

Add support for unresolved classes in optimizing.

Change-Id: I0e299a81e560eb9cb0737ec46125dffc99333b54

compiler/optimizing/code_generator_x86_64.cc

diff --git a/compiler/optimizing/code_generator_x86_64.cc b/compiler/optimizing/code_generator_x86_64.cc
index 791bb9e..ad6588c 100644
--- a/compiler/optimizing/code_generator_x86_64.cc
+++ b/compiler/optimizing/code_generator_x86_64.cc
@@ -4694,20 +4694,24 @@
 }
 
 void LocationsBuilderX86_64::VisitLoadClass(HLoadClass* cls) {
-  LocationSummary::CallKind call_kind = cls->CanCallRuntime()
-      ? LocationSummary::kCallOnSlowPath
-      : LocationSummary::kNoCall;
-  LocationSummary* locations =
-      new (GetGraph()->GetArena()) LocationSummary(cls, call_kind);
-  locations->SetInAt(0, Location::RequiresRegister());
-  locations->SetOut(Location::RequiresRegister());
+  InvokeRuntimeCallingConvention calling_convention;
+  CodeGenerator::CreateLoadClassLocationSummary(
+      cls,
+      Location::RegisterLocation(calling_convention.GetRegisterAt(0)),
+      Location::RegisterLocation(RAX));
 }
 
 void InstructionCodeGeneratorX86_64::VisitLoadClass(HLoadClass* cls) {
   LocationSummary* locations = cls->GetLocations();
   CpuRegister out = locations->Out().AsRegister<CpuRegister>();
   CpuRegister current_method = locations->InAt(0).AsRegister<CpuRegister>();
-  if (cls->IsReferrersClass()) {
+  if (cls->NeedsAccessCheck()) {
+    codegen_->MoveConstant(locations->GetTemp(0), cls->GetTypeIndex());
+    codegen_->InvokeRuntime(QUICK_ENTRY_POINT(pInitializeTypeAndVerifyAccess),
+                            cls,
+                            cls->GetDexPc(),
+                            nullptr);
+  } else if (cls->IsReferrersClass()) {
     DCHECK(!cls->CanCallRuntime());
     DCHECK(!cls->MustGenerateClinitCheck());
     __ movl(out, Address(current_method, ArtMethod::DeclaringClassOffset().Int32Value()));
@@ -4817,6 +4821,7 @@
     case TypeCheckKind::kArrayObjectCheck:
       call_kind = LocationSummary::kNoCall;
       break;
+    case TypeCheckKind::kUnresolvedCheck:
     case TypeCheckKind::kInterfaceCheck:
       call_kind = LocationSummary::kCall;
       break;
@@ -4857,10 +4862,11 @@
     __ j(kEqual, &zero);
   }
 
-  // In case of an interface check, we put the object class into the object register.
+  // In case of an interface/unresolved check, we put the object class into the object register.
   // This is safe, as the register is caller-save, and the object must be in another
   // register if it survives the runtime call.
-  CpuRegister target = (instruction->GetTypeCheckKind() == TypeCheckKind::kInterfaceCheck)
+  CpuRegister target = (instruction->GetTypeCheckKind() == TypeCheckKind::kInterfaceCheck) ||
+      (instruction->GetTypeCheckKind() == TypeCheckKind::kUnresolvedCheck)
       ? obj
       : out;
   __ movl(target, Address(obj, class_offset));
@@ -4974,7 +4980,7 @@
       }
       break;
     }
-
+    case TypeCheckKind::kUnresolvedCheck:
     case TypeCheckKind::kInterfaceCheck:
     default: {
       codegen_->InvokeRuntime(QUICK_ENTRY_POINT(pInstanceofNonTrivial),
@@ -5015,6 +5021,7 @@
           ? LocationSummary::kCallOnSlowPath
           : LocationSummary::kNoCall;
       break;
+    case TypeCheckKind::kUnresolvedCheck:
     case TypeCheckKind::kInterfaceCheck:
       call_kind = LocationSummary::kCall;
       break;
@@ -5142,6 +5149,7 @@
       __ j(kNotEqual, slow_path->GetEntryLabel());
       break;
     }
+    case TypeCheckKind::kUnresolvedCheck:
     case TypeCheckKind::kInterfaceCheck:
     default:
       codegen_->InvokeRuntime(QUICK_ENTRY_POINT(pCheckCast),