Support for mixed null/smi equality: do not deoptimize, emit same optimized code as if that was smi…

runtime/vm/flow_graph_compiler_ia32.h

 // 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.
 
 #ifndef VM_FLOW_GRAPH_COMPILER_IA32_H_
 #define VM_FLOW_GRAPH_COMPILER_IA32_H_
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #error Include flow_graph_compiler.h instead of flow_graph_compiler_ia32.h.
 #endif
@@ skipping 85 matching lines @@
   void GenerateAssertAssignable(intptr_t token_pos,
                                 const AbstractType& dst_type,
                                 const String& dst_name,
                                 LocationSummary* locs);
 
   void GenerateInstanceOf(intptr_t token_pos,
                           const AbstractType& type,
                           bool negate_result,
                           LocationSummary* locs);
 
-  void GenerateInstanceCall(intptr_t deopt_id,
-                            intptr_t token_pos,
-                            const String& function_name,
-                            intptr_t argument_count,
-                            const Array& argument_names,
-                            intptr_t checked_argument_count,
-                            LocationSummary* locs);
+  // Returns ICData used in the instance call.
+  const ICData& GenerateInstanceCall(intptr_t deopt_id,
+                                     intptr_t token_pos,
+                                     const String& function_name,
+                                     intptr_t argument_count,
+                                     const Array& argument_names,
+                                     intptr_t checked_argument_count,
+                                     LocationSummary* locs);
 
   void GenerateStaticCall(intptr_t deopt_id,
                           intptr_t token_pos,
                           const Function& function,
                           intptr_t argument_count,
                           const Array& argument_names,
                           LocationSummary* locs);
 
   void GenerateNumberTypeCheck(Register kClassIdReg,
                                const AbstractType& type,
@@ skipping 200 matching lines @@
   // that should be used when deoptimizing we store it in this variable.
   // In future AddDeoptStub should be moved out of the instruction template.
   Environment* pending_deoptimization_env_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_IA32_H_