Infer range for BIT_XOR.

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 7434 matching lines @@
         from_representation_(from),
         to_representation_(to),
         is_truncating_(to == kUnboxedUint32) {
     ASSERT(from != to);
     ASSERT((from == kUnboxedMint) ||
            (from == kUnboxedUint32) ||
            (from == kUnboxedInt32));
     ASSERT((to == kUnboxedMint) ||
            (to == kUnboxedUint32) ||
            (to == kUnboxedInt32));
-    ASSERT((to != kUnboxedInt32) || (deopt_id != Isolate::kNoDeoptId));
     SetInputAt(0, value);
+    ASSERT(!CanDeoptimize() || (deopt_id != Isolate::kNoDeoptId));
   }
 
   Value* value() const { return inputs_[0]; }
 
   Representation from() const { return from_representation_; }
   Representation to() const { return to_representation_; }
   bool is_truncating() const { return is_truncating_; }
 
   void mark_truncating() { is_truncating_ = true; }
 
@@ skipping 273 matching lines @@
       Isolate* isolate, bool opt) const {                                     \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_