Change static calls in unoptimized code to always call via a stub. Using ICData, the call count of …

runtime/vm/flow_graph_compiler_x64.cc

 // Copyright (c) 2013, 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_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "lib/error.h"
@@ skipping 1423 matching lines @@
   GenerateDartCall(deopt_id,
                    token_pos,
                    &StubCode::CallStaticFunctionLabel(),
                    PcDescriptors::kFuncCall,
                    locs);
   AddStaticCallTarget(function);
   __ Drop(argument_count);
 }
 
 
+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) {
+  const ICData& ic_data = ICData::ZoneHandle(
+      ICData::New(parsed_function().function(),  // Caller function.
+                  String::Handle(target_function.name()),
+                  arguments_descriptor,
+                  deopt_id,
+                  0));  // No arguments checked.
+  ic_data.AddTarget(target_function);
+  __ LoadObject(RBX, ic_data);
+  GenerateDartCall(deopt_id,
+                   token_pos,
+                   &StubCode::UnoptimizedStaticCallLabel(),
+                   PcDescriptors::kFuncCall,
+                   locs);
+  __ Drop(argument_count);
+}
+
+
 void FlowGraphCompiler::EmitEqualityRegConstCompare(Register reg,
                                                     const Object& obj,
                                                     bool needs_number_check,
                                                     intptr_t token_pos) {
   if (needs_number_check) {
     if (!obj.IsMint() && !obj.IsDouble() && !obj.IsBigint()) {
       needs_number_check = false;
     }
   }
 
@@ skipping 449 matching lines @@
   __ movups(reg, Address(RSP, 0));
   __ addq(RSP, Immediate(kFpuRegisterSize));
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64