Support inlining function containing throw in the optimizer.

runtime/vm/intermediate_language.cc

 // Copyright (c) 2013, 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/bigint_operations.h"
 #include "vm/bit_vector.h"
 #include "vm/dart_entry.h"
 #include "vm/flow_graph_allocator.h"
@@ skipping 420 matching lines @@
 
   // Update def-use chains whenever instructions are added to the graph
   // after initial graph construction.
   for (intptr_t i = InputCount() - 1; i >= 0; --i) {
     Value* input = InputAt(i);
     input->definition()->AddInputUse(input);
   }
 }
 
 
+Instruction* Instruction::AppendInstruction(Instruction* tail) {
+  LinkTo(tail);
+  // Update def-use chains whenever instructions are added to the graph
+  // after initial graph construction.
+  for (intptr_t i = tail->InputCount() - 1; i >= 0; --i) {
+    Value* input = tail->InputAt(i);
+    input->definition()->AddInputUse(input);
+  }
+  return tail;
+}
+
+
 BlockEntryInstr* Instruction::GetBlock() const {
   // TODO(fschneider): Implement a faster way to get the block of an
   // instruction.
   ASSERT(previous() != NULL);
   Instruction* result = previous();
   while (!result->IsBlockEntry()) result = result->previous();
   return result->AsBlockEntry();
 }
 
 
@@ skipping 2010 matching lines @@
     default:
       UNREACHABLE();
   }
   return kPowRuntimeEntry;
 }
 
 
 #undef __
 
 }  // namespace dart