Fix lazy deoptimization in the presence of exceptions

runtime/vm/intermediate_language.h

 // 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.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 879 matching lines @@
 
   void Unsupported(FlowGraphCompiler* compiler);
 
  protected:
   // GetDeoptId and/or CopyDeoptIdFrom.
   friend class CallSiteInliner;
   friend class LICM;
   friend class ComparisonInstr;
   friend class Scheduler;
   friend class BlockEntryInstr;
+  friend class CatchBlockEntryInstr;  // deopt_id_
 
   // Fetch deopt id without checking if this computation can deoptimize.
   intptr_t GetDeoptId() const {
     return deopt_id_;
   }
 
   void CopyDeoptIdFrom(const Instruction& instr) {
     deopt_id_ = instr.deopt_id_;
   }
 
@@ skipping 647 matching lines @@
 
 class CatchBlockEntryInstr : public BlockEntryInstr {
  public:
   CatchBlockEntryInstr(intptr_t block_id,
                        intptr_t try_index,
                        GraphEntryInstr* graph_entry,
                        const Array& handler_types,
                        intptr_t catch_try_index,
                        const LocalVariable& exception_var,
                        const LocalVariable& stacktrace_var,
-                       bool needs_stacktrace)
+                       bool needs_stacktrace,
+                       intptr_t deopt_id)
       : BlockEntryInstr(block_id, try_index),
         graph_entry_(graph_entry),
         predecessor_(NULL),
         catch_handler_types_(Array::ZoneHandle(handler_types.raw())),
         catch_try_index_(catch_try_index),
         exception_var_(exception_var),
         stacktrace_var_(stacktrace_var),
-        needs_stacktrace_(needs_stacktrace) { }
+        needs_stacktrace_(needs_stacktrace) {
+    deopt_id_ = deopt_id;
+  }
 
   DECLARE_INSTRUCTION(CatchBlockEntry)
 
   virtual intptr_t PredecessorCount() const {
     return (predecessor_ == NULL) ? 0 : 1;
   }
   virtual BlockEntryInstr* PredecessorAt(intptr_t index) const {
     ASSERT((index == 0) && (predecessor_ != NULL));
     return predecessor_;
   }
@@ skipping 6710 matching lines @@
   LocationSummary* Name::MakeLocationSummary(Zone* zone, bool opt) const {    \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_