ART: Compiler support for const-method-type

Implemented as a runtime call.

Bug: 66890674
Test: art/test.py --target -r -t 979
Test: art/test.py --target --64 -r -t 979
Test: art/test.py --host -r -t 979
Change-Id: I4b3d3969d455d0198cfe122eea8abd54e0ea20ee

1 files changed, 20 insertions, 0 deletions

diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index 231017f55e..1e44311cb1 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -736,6 +736,26 @@ void CodeGenerator::GenerateLoadClassRuntimeCall(HLoadClass* cls) {
   }
 }
 
+void CodeGenerator::CreateLoadMethodTypeRuntimeCallLocationSummary(
+    HLoadMethodType* method_type,
+    Location runtime_proto_index_location,
+    Location runtime_return_location) {
+  DCHECK_EQ(method_type->InputCount(), 1u);
+  LocationSummary* locations =
+      new (method_type->GetBlock()->GetGraph()->GetAllocator()) LocationSummary(
+          method_type, LocationSummary::kCallOnMainOnly);
+  locations->SetInAt(0, Location::NoLocation());
+  locations->AddTemp(runtime_proto_index_location);
+  locations->SetOut(runtime_return_location);
+}
+
+void CodeGenerator::GenerateLoadMethodTypeRuntimeCall(HLoadMethodType* method_type) {
+  LocationSummary* locations = method_type->GetLocations();
+  MoveConstant(locations->GetTemp(0), method_type->GetProtoIndex());
+  CheckEntrypointTypes<kQuickResolveMethodType, void*, uint32_t>();
+  InvokeRuntime(kQuickResolveMethodType, method_type, method_type->GetDexPc());
+}
+
 static uint32_t GetBootImageOffsetImpl(const void* object, ImageHeader::ImageSections section) {
   Runtime* runtime = Runtime::Current();
   DCHECK(runtime->IsAotCompiler());