VM: New calling convention for generated code.

runtime/vm/flow_graph_compiler.cc

Index: runtime/vm/flow_graph_compiler.cc
diff --git a/runtime/vm/flow_graph_compiler.cc b/runtime/vm/flow_graph_compiler.cc
index 3433de04a0cc693ff77918b29c3c2093968b0ca5..7254e162da2aadb807e3c38facedeb1fac5b030b 100644
--- a/runtime/vm/flow_graph_compiler.cc
+++ b/runtime/vm/flow_graph_compiler.cc
@@ -1043,7 +1043,7 @@ void FlowGraphCompiler::GenerateInstanceCall(
     return;
   }
   ASSERT(!ic_data.IsNull());
-  uword label_address = 0;
+  Code& target = Code::Handle();
   StubCode* stub_code = isolate()->stub_code();
   if (is_optimizing() && (ic_data.NumberOfUsedChecks() == 0)) {
     // Emit IC call that will count and thus may need reoptimization at
@@ -1053,16 +1053,15 @@ void FlowGraphCompiler::GenerateInstanceCall(
            || flow_graph().IsCompiledForOsr());
     switch (ic_data.NumArgsTested()) {
       case 1:
-        label_address = stub_code->OneArgOptimizedCheckInlineCacheEntryPoint();
+        target = stub_code->OneArgOptimizedCheckInlineCacheCode();
         break;
       case 2:
-        label_address = stub_code->TwoArgsOptimizedCheckInlineCacheEntryPoint();
+        target = stub_code->TwoArgsOptimizedCheckInlineCacheCode();
         break;
       default:
         UNIMPLEMENTED();
     }
-    ExternalLabel target_label(label_address);
-    EmitOptimizedInstanceCall(&target_label, ic_data,
+    EmitOptimizedInstanceCall(target, ic_data,
                               argument_count, deopt_id, token_pos, locs);
     return;
   }
@@ -1080,16 +1079,15 @@ void FlowGraphCompiler::GenerateInstanceCall(
 
   switch (ic_data.NumArgsTested()) {
     case 1:
-      label_address = stub_code->OneArgCheckInlineCacheEntryPoint();
+      target = stub_code->OneArgCheckInlineCacheCode();
       break;
     case 2:
-      label_address = stub_code->TwoArgsCheckInlineCacheEntryPoint();
+      target = stub_code->TwoArgsCheckInlineCacheCode();
       break;
     default:
       UNIMPLEMENTED();
   }
-  ExternalLabel target_label(label_address);
-  EmitInstanceCall(&target_label, ic_data, argument_count,
+  EmitInstanceCall(target, ic_data, argument_count,
                    deopt_id, token_pos, locs);
 }