Remove the instruction pointer from computations.

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 36 matching lines @@
 #define KIND_TO_STRING(class_name, function_name, enum_name)                   \
   if (kind == k##enum_name) return #enum_name;
 RECOGNIZED_LIST(KIND_TO_STRING)
 #undef KIND_TO_STRING
   return "?";
 }
 
 
 // ==== Support for visiting flow graphs.
 #define DEFINE_ACCEPT(ShortName, ClassName)                                    \
-void ClassName::Accept(FlowGraphVisitor* visitor) {                            \
-  visitor->Visit##ShortName(this);                                             \
+void ClassName::Accept(FlowGraphVisitor* visitor, BindInstr* instr) {          \
+  visitor->Visit##ShortName(this, instr);                                      \
 }
 
 FOR_EACH_COMPUTATION(DEFINE_ACCEPT)
 
 #undef DEFINE_ACCEPT
 
 
 #define DEFINE_ACCEPT(ShortName)                                               \
 Instruction* ShortName##Instr::Accept(FlowGraphVisitor* visitor) {             \
   visitor->Visit##ShortName(this);                                             \
@@ skipping 17 matching lines @@
 void FlowGraphVisitor::VisitBlocks() {
   for (intptr_t i = 0; i < block_order_.length(); ++i) {
     Instruction* current = block_order_[i]->Accept(this);
     while ((current != NULL) && !current->IsBlockEntry()) {
       current = current->Accept(this);
     }
   }
 }
 
 
-void Computation::ReplaceWith(Computation* other) {
-  ASSERT(other->instr() == NULL);
-  ASSERT(instr() != NULL);
-  other->set_instr(other->instr());
-  instr()->replace_computation(other);
-  set_instr(NULL);
-}
-
-
 intptr_t InstanceCallComp::InputCount() const {
   return ArgumentCount();
 }
 
 
 intptr_t StaticCallComp::InputCount() const {
   return ArgumentCount();
 }
 
 
@@ skipping 1217 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