Cleanups.

runtime/vm/intermediate_language.cc

 // Copyright (c) 2012, 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/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/dart_entry.h"
 #include "vm/flow_graph_builder.h"
 #include "vm/flow_graph_compiler.h"
@@ skipping 370 matching lines @@
   UNREACHABLE();
   return NULL;
 }
 
 
 void JoinEntryInstr::SetInputAt(intptr_t i, Value* value) {
   UNREACHABLE();
 }
 
 
+intptr_t JoinEntryInstr::IndexOfPredecessor(BlockEntryInstr* pred) const {
+  for (intptr_t i = 0; i < predecessors_.length(); ++i) {
+    if (predecessors_[i] == pred) return i;
+  }
+  return -1;
+}
+
+
 // ==== Recording assigned variables.
 void Computation::RecordAssignedVars(BitVector* assigned_vars) {
   // Nothing to do for the base class.
 }
 
 
 void StoreLocalComp::RecordAssignedVars(BitVector* assigned_vars) {
   if (!local().is_captured()) {
     assigned_vars->Add(local().BitIndexIn(assigned_vars->length()));
   }
@@ skipping 903 matching lines @@
   const ExternalLabel label(closure_function.ToCString(), stub.EntryPoint());
   compiler->GenerateCall(token_pos(), try_index(), &label,
                          PcDescriptors::kOther);
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 
 #undef __
 
 }  // namespace dart