Noopt work: populate empty ICData of getters and setters with function's own class if that getter/s…

runtime/vm/flow_graph_inliner.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/flow_graph_inliner.h"
 
 #include "vm/block_scheduler.h"
 #include "vm/compiler.h"
 #include "vm/flags.h"
 #include "vm/flow_graph.h"
@@ skipping 41 matching lines @@
 DEFINE_FLAG(int, inlining_recursion_depth_threshold, 1,
     "Inline recursive function calls up to threshold recursion depth.");
 DEFINE_FLAG(int, max_inlined_per_depth, 500,
     "Max. number of inlined calls per depth");
 DEFINE_FLAG(bool, print_inlining_tree, false, "Print inlining tree");
 DEFINE_FLAG(bool, enable_inlining_annotations, false,
             "Enable inlining annotations");
 
 DECLARE_FLAG(bool, compiler_stats);
 DECLARE_FLAG(int, deoptimization_counter_threshold);
+DECLARE_FLAG(bool, polymorphic_with_deopt);
 DECLARE_FLAG(bool, print_flow_graph);
 DECLARE_FLAG(bool, print_flow_graph_optimized);
 DECLARE_FLAG(bool, verify_compiler);
 
 // Quick access to the current zone.
 #define Z (zone())
 
 #define TRACE_INLINING(statement)                                              \
   do {                                                                         \
     if (trace_inlining()) statement;                                           \
@@ skipping 1055 matching lines @@
   }
 
   void InlineInstanceCalls() {
     const GrowableArray<CallSites::InstanceCallInfo>& call_info =
         inlining_call_sites_->instance_calls();
     TRACE_INLINING(ISL_Print("  Polymorphic Instance Calls (%" Pd ")\n",
                              call_info.length()));
     for (intptr_t call_idx = 0; call_idx < call_info.length(); ++call_idx) {
       PolymorphicInstanceCallInstr* call = call_info[call_idx].call;
       if (call->with_checks()) {
+        // PolymorphicInliner introduces deoptimization paths.
+        if (!FLAG_polymorphic_with_deopt) return;
         const Function& cl = call_info[call_idx].caller();
         intptr_t caller_inlining_id =
             call_info[call_idx].caller_graph->inlining_id();
         PolymorphicInliner inliner(this, call, cl, caller_inlining_id);
         inliner.Inline();
         continue;
       }
 
       const ICData& ic_data = call->ic_data();
       const Function& target = Function::ZoneHandle(ic_data.GetTargetAt(0));
@@ skipping 733 matching lines @@
 intptr_t FlowGraphInliner::NextInlineId(const Function& function,
                                         intptr_t parent_id) {
   const intptr_t id = inline_id_to_function_->length();
   inline_id_to_function_->Add(&function);
   caller_inline_id_->Add(parent_id);
   return id;
 }
 
 
 }  // namespace dart