[turbofan] Add an extra frame state for deoptimization before binary op.

src/compiler/ast-graph-builder.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_AST_GRAPH_BUILDER_H_
 #define V8_COMPILER_AST_GRAPH_BUILDER_H_
 
 #include "src/ast.h"
 #include "src/compiler/js-graph.h"
 
@@ skipping 300 matching lines @@
                             BailoutId bailout_id);
   void VisitForInBody(ForInStatement* stmt);
 
   // Dispatched from VisitClassLiteral.
   void VisitClassLiteralContents(ClassLiteral* expr);
 
   // Builds deoptimization for a given node.
   void PrepareFrameState(
       Node* node, BailoutId ast_id,
       OutputFrameStateCombine combine = OutputFrameStateCombine::Ignore());
+  void PrepareFrameStateAfterAndBefore(Node* node, BailoutId ast_id,
+                                       OutputFrameStateCombine combine,
+                                       Node* frame_state_before);
 
   BitVector* GetVariablesAssignedInLoop(IterationStatement* stmt);
 
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
   DISALLOW_COPY_AND_ASSIGN(AstGraphBuilder);
 };
 
 
 // The abstract execution environment for generated code consists of
 // parameter variables, local variables and the operand stack. The
@@ skipping 70 matching lines @@
     values()->erase(values()->end() - depth, values()->end());
   }
   void Trim(int trim_to_height) {
     int depth = stack_height() - trim_to_height;
     DCHECK(depth >= 0 && depth <= stack_height());
     values()->erase(values()->end() - depth, values()->end());
   }
 
   // Preserve a checkpoint of the environment for the IR graph. Any
   // further mutation of the environment will not affect checkpoints.
-  Node* Checkpoint(BailoutId ast_id, OutputFrameStateCombine combine);
+  Node* Checkpoint(BailoutId ast_id, OutputFrameStateCombine combine =
+                                         OutputFrameStateCombine::Ignore());
 
   // Control dependency tracked by this environment.
   Node* GetControlDependency() { return control_dependency_; }
   void UpdateControlDependency(Node* dependency) {
     control_dependency_ = dependency;
   }
 
   // Effect dependency tracked by this environment.
   Node* GetEffectDependency() { return effect_dependency_; }
   void UpdateEffectDependency(Node* dependency) {
@@ skipping 53 matching lines @@
 
   // Prepare environment to be used as loop header.
   void PrepareForLoop(BitVector* assigned, bool is_osr = false);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_AST_GRAPH_BUILDER_H_