Uses an object pool on x64

runtime/vm/flow_graph_compiler_arm.cc

Index: runtime/vm/flow_graph_compiler_arm.cc
===================================================================
--- runtime/vm/flow_graph_compiler_arm.cc	(revision 27291)
+++ runtime/vm/flow_graph_compiler_arm.cc	(working copy)
@@ -1385,6 +1385,47 @@
 }
 
 
+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) {
+  // 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);
+  GenerateDartCall(deopt_id,
+                   token_pos,
+                   &target_label,
+                   PcDescriptors::kUnoptStaticCall,
+                   locs);
+  __ Drop(argument_count);
+}
+
+
 void FlowGraphCompiler::EmitOptimizedStaticCall(
     const Function& function,
     const Array& arguments_descriptor,