VM: New calling convention for generated code.

runtime/vm/stub_code.cc

Index: runtime/vm/stub_code.cc
diff --git a/runtime/vm/stub_code.cc b/runtime/vm/stub_code.cc
index 38fd62391a7aa19689137751429d770a84474b83..172024579fdf8dba8918728ca7954c54edf3219d 100644
--- a/runtime/vm/stub_code.cc
+++ b/runtime/vm/stub_code.cc
@@ -156,8 +156,7 @@ RawCode* StubCode::GetAllocationStubForClass(const Class& cls) {
       DisassembleToStdout formatter;
       stub.Disassemble(&formatter);
       ISL_Print("}\n");
-      const ObjectPool& object_pool = ObjectPool::Handle(
-          Instructions::Handle(stub.instructions()).object_pool());
+      const ObjectPool& object_pool = ObjectPool::Handle(stub.object_pool());
       object_pool.DebugPrint();
     }
     stub.set_entry_patch_pc_offset(entry_patch_offset);
@@ -182,6 +181,21 @@ uword StubCode::UnoptimizedStaticCallEntryPoint(intptr_t num_args_tested) {
 }
 
 
+RawCode* StubCode::UnoptimizedStaticCallCode(intptr_t num_args_tested) {
+  switch (num_args_tested) {
+    case 0:
+      return ZeroArgsUnoptimizedStaticCallCode();
+    case 1:
+      return OneArgUnoptimizedStaticCallCode();
+    case 2:
+      return TwoArgsUnoptimizedStaticCallCode();
+    default:
+      UNIMPLEMENTED();
+      return 0;
+  }
+}
+
+
 RawCode* StubCode::Generate(const char* name,
                             void (*GenerateStub)(Assembler* assembler)) {
   Assembler assembler;
@@ -193,8 +207,7 @@ RawCode* StubCode::Generate(const char* name,
     DisassembleToStdout formatter;
     code.Disassemble(&formatter);
     ISL_Print("}\n");
-    const ObjectPool& object_pool = ObjectPool::Handle(
-        Instructions::Handle(code.instructions()).object_pool());
+    const ObjectPool& object_pool = ObjectPool::Handle(code.object_pool());
     object_pool.DebugPrint();
   }
   return code.raw();