VM: Clean up generated code for NoSuchMethod invocation of closures.

runtime/vm/flow_graph_compiler_arm64.cc

 // Copyright (c) 2014, 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_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 876 matching lines @@
       __ LoadFieldFromOffset(R7, R4, ArgumentsDescriptor::count_offset(), PP);
       __ SmiUntag(R7);
       // Check that R8 equals R7, i.e. no named arguments passed.
       __ CompareRegisters(R8, R7);
       __ b(&all_arguments_processed, EQ);
     }
   }
 
   __ Bind(&wrong_num_arguments);
   if (function.IsClosureFunction()) {
-    // Invoke noSuchMethod function passing "call" as the original name.
-    StubCode* stub_code = isolate()->stub_code();
-    const int kNumArgsChecked = 1;
-    const ICData& ic_data = ICData::ZoneHandle(
-        ICData::New(function, Symbols::Call(), Object::empty_array(),
-                    Isolate::kNoDeoptId, kNumArgsChecked));
-    __ LoadObject(R5, ic_data, PP);
     __ LeaveDartFrame();  // The arguments are still on the stack.
-    __ BranchPatchable(&stub_code->CallNoSuchMethodFunctionLabel());
+    __ BranchPatchable(
+        &isolate()->stub_code()->CallClosureNoSuchMethodLabel());
     // The noSuchMethod call may return to the caller, but not here.
-    __ brk(0);
   } else if (check_correct_named_args) {
     __ Stop("Wrong arguments");
   }
 
   __ Bind(&all_arguments_processed);
   // Nullify originally passed arguments only after they have been copied and
   // checked, otherwise noSuchMethod would not see their original values.
   // This step can be skipped in case we decide that formal parameters are
   // implicitly final, since garbage collecting the unmodified value is not
   // an issue anymore.
@@ skipping 139 matching lines @@
       Label correct_num_arguments, wrong_num_arguments;
       __ LoadFieldFromOffset(R0, R4, ArgumentsDescriptor::count_offset(), PP);
       __ CompareImmediate(R0, Smi::RawValue(num_fixed_params), PP);
       __ b(&wrong_num_arguments, NE);
       __ LoadFieldFromOffset(R1, R4,
             ArgumentsDescriptor::positional_count_offset(), PP);
       __ CompareRegisters(R0, R1);
       __ b(&correct_num_arguments, EQ);
       __ Bind(&wrong_num_arguments);
       if (function.IsClosureFunction()) {
-        // Invoke noSuchMethod function passing the original function name.
-        // For closure functions, use "call" as the original name.
-        const String& name =
-            String::Handle(function.IsClosureFunction()
-                             ? Symbols::Call().raw()
-                             : function.name());
-        const int kNumArgsChecked = 1;
-        const ICData& ic_data = ICData::ZoneHandle(
-            ICData::New(function, name, Object::empty_array(),
-                        Isolate::kNoDeoptId, kNumArgsChecked));
-        __ LoadObject(R5, ic_data, PP);
         __ LeaveDartFrame();  // The arguments are still on the stack.
-        __ BranchPatchable(&stub_code->CallNoSuchMethodFunctionLabel());
+        __ BranchPatchable(
+            &isolate()->stub_code()->CallClosureNoSuchMethodLabel());
         // The noSuchMethod call may return to the caller, but not here.
-        __ brk(0);
       } else {
         __ Stop("Wrong number of arguments");
       }
       __ Bind(&correct_num_arguments);
     }
   } else if (!flow_graph().IsCompiledForOsr()) {
     CopyParameters();
   }
 
   // In unoptimized code, initialize (non-argument) stack allocated slots to
@@ skipping 645 matching lines @@
 void ParallelMoveResolver::RestoreFpuScratch(FpuRegister reg) {
   UNIMPLEMENTED();
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64