Use off-heap data for type feedback in PolymorphicInstanceCallInstr

runtime/vm/intermediate_language_arm.cc

Index: runtime/vm/intermediate_language_arm.cc
diff --git a/runtime/vm/intermediate_language_arm.cc b/runtime/vm/intermediate_language_arm.cc
index f3a39c19d29740641be972bd1c940763d5fa0e75..2577008101209aaf4e92bd52e89fed8620a8922c 100644
--- a/runtime/vm/intermediate_language_arm.cc
+++ b/runtime/vm/intermediate_language_arm.cc
@@ -3139,8 +3139,12 @@ class CheckedSmiSlowPath : public SlowPathCode {
     }
     __ Push(locs->in(0).reg());
     __ Push(locs->in(1).reg());
+    String& selector =
+        String::Handle(instruction_->call()->ic_data()->target_name());
+    Array& argument_names =
+        Array::Handle(instruction_->call()->ic_data()->arguments_descriptor());
     compiler->EmitMegamorphicInstanceCall(
-        *instruction_->call()->ic_data(), instruction_->call()->ArgumentCount(),
+        selector, argument_names, instruction_->call()->ArgumentCount(),
         instruction_->call()->deopt_id(), instruction_->call()->token_pos(),
         locs, try_index_,
         /* slow_path_argument_count = */ 2);
@@ -3278,8 +3282,12 @@ class CheckedSmiComparisonSlowPath : public SlowPathCode {
     }
     __ Push(locs->in(0).reg());
     __ Push(locs->in(1).reg());
+    String& selector =

[Vyacheslav Egorov (Google), 2017/04/10 10:59:28]

const String&

[erikcorry, 2017/04/19 15:06:40]

Done.

+        String::Handle(instruction_->call()->ic_data()->target_name());
+    Array& argument_names =

[Vyacheslav Egorov (Google), 2017/04/10 10:59:28]

const Array&

[erikcorry, 2017/04/19 15:06:40]

Done.

+        Array::Handle(instruction_->call()->ic_data()->arguments_descriptor());
     compiler->EmitMegamorphicInstanceCall(
-        *instruction_->call()->ic_data(), instruction_->call()->ArgumentCount(),
+        selector, argument_names, instruction_->call()->ArgumentCount(),
         instruction_->call()->deopt_id(), instruction_->call()->token_pos(),
         locs, try_index_,
         /* slow_path_argument_count = */ 2);
@@ -6319,7 +6327,7 @@ void CheckClassInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   Register biased_cid = temp;
   __ LoadClassId(biased_cid, value);
 
-  GrowableArray<CidRangeTarget> sorted_ic_data;
+  ZoneGrowableArray<CidRangeTarget> sorted_ic_data;
   FlowGraphCompiler::SortICDataByCount(unary_checks(), &sorted_ic_data,
                                        /* drop_smi = */ true);