Enables simple static call test on arm64.

runtime/vm/flow_graph_compiler_arm64.cc

 // Copyright (c) 2014, 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_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 347 matching lines @@
                                      LocationSummary* locs) {
   UNIMPLEMENTED();
 }
 
 
 void FlowGraphCompiler::GenerateDartCall(intptr_t deopt_id,
                                          intptr_t token_pos,
                                          const ExternalLabel* label,
                                          PcDescriptors::Kind kind,
                                          LocationSummary* locs) {
-  UNIMPLEMENTED();
+  __ BranchLinkPatchable(label);
+  AddCurrentDescriptor(kind, deopt_id, token_pos);
+  RecordSafepoint(locs);
+  // Marks either the continuation point in unoptimized code or the
+  // deoptimization point in optimized code, after call.
+  const intptr_t deopt_id_after = Isolate::ToDeoptAfter(deopt_id);
+  if (is_optimizing()) {
+    AddDeoptIndexAtCall(deopt_id_after, token_pos);
+  } else {
+    // Add deoptimization continuation point after the call and before the
+    // arguments are removed.
+    AddCurrentDescriptor(PcDescriptors::kDeopt, deopt_id_after, token_pos);
+  }
 }
 
 
 void FlowGraphCompiler::GenerateRuntimeCall(intptr_t token_pos,
                                             intptr_t deopt_id,
                                             const RuntimeEntry& entry,
                                             intptr_t argument_count,
                                             LocationSummary* locs) {
   __ CallRuntime(entry, argument_count);
   AddCurrentDescriptor(PcDescriptors::kOther, deopt_id, token_pos);
@@ skipping 60 matching lines @@
 }
 
 
 void FlowGraphCompiler::EmitUnoptimizedStaticCall(
     const Function& target_function,
     const Array& arguments_descriptor,
     intptr_t argument_count,
     intptr_t deopt_id,
     intptr_t token_pos,
     LocationSummary* locs) {
-  UNIMPLEMENTED();
+  // TODO(srdjan): Improve performance of function recognition.
+  MethodRecognizer::Kind recognized_kind =
+      MethodRecognizer::RecognizeKind(target_function);
+  int num_args_checked = 0;
+  if ((recognized_kind == MethodRecognizer::kMathMin) ||
+      (recognized_kind == MethodRecognizer::kMathMax)) {
+    num_args_checked = 2;
+  }
+  const ICData& ic_data = ICData::ZoneHandle(
+      ICData::New(parsed_function().function(),  // Caller function.
+                  String::Handle(target_function.name()),
+                  arguments_descriptor,
+                  deopt_id,
+                  num_args_checked));  // No arguments checked.
+  ic_data.AddTarget(target_function);
+  uword label_address = 0;
+  if (ic_data.num_args_tested() == 0) {
+    label_address = StubCode::ZeroArgsUnoptimizedStaticCallEntryPoint();
+  } else if (ic_data.num_args_tested() == 2) {
+    label_address = StubCode::TwoArgsUnoptimizedStaticCallEntryPoint();
+  } else {
+    UNIMPLEMENTED();
+  }
+  ExternalLabel target_label("StaticCallICStub", label_address);
+  __ LoadObject(R5, ic_data, PP);
+  GenerateDartCall(deopt_id,
+                   token_pos,
+                   &target_label,
+                   PcDescriptors::kUnoptStaticCall,
+                   locs);
+  __ Drop(argument_count);
 }
 
 
 void FlowGraphCompiler::EmitOptimizedStaticCall(
     const Function& function,
     const Array& arguments_descriptor,
     intptr_t argument_count,
     intptr_t deopt_id,
     intptr_t token_pos,
     LocationSummary* locs) {
@@ skipping 165 matching lines @@
 void ParallelMoveResolver::RestoreFpuScratch(FpuRegister reg) {
   UNIMPLEMENTED();
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64