Reland "Add handling for argument adaptor frames to inlining."

src/compiler/instruction.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_INSTRUCTION_H_
 #define V8_COMPILER_INSTRUCTION_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 684 matching lines @@
 
  private:
   Type type_;
   int64_t value_;
 };
 
 
 class FrameStateDescriptor : public ZoneObject {
  public:
   FrameStateDescriptor(const FrameStateCallInfo& state_info,
-                       int parameters_count, int locals_count, int stack_count,
+                       size_t parameters_count, size_t locals_count,
+                       size_t stack_count,
                        FrameStateDescriptor* outer_state = NULL)
-      : bailout_id_(state_info.bailout_id()),
+      : type_(state_info.type()),
+        bailout_id_(state_info.bailout_id()),
         frame_state_combine_(state_info.state_combine()),
         parameters_count_(parameters_count),
         locals_count_(locals_count),
         stack_count_(stack_count),
-        outer_state_(outer_state) {}
+        outer_state_(outer_state),
+        jsfunction_(state_info.jsfunction()) {}
 
+  FrameStateType type() const { return type_; }
   BailoutId bailout_id() const { return bailout_id_; }
   OutputFrameStateCombine state_combine() const { return frame_state_combine_; }
-  int parameters_count() { return parameters_count_; }
-  int locals_count() { return locals_count_; }
-  int stack_count() { return stack_count_; }
-  FrameStateDescriptor* outer_state() { return outer_state_; }
-  void set_outer_state(FrameStateDescriptor* outer_state) {
-    outer_state_ = outer_state;
+  size_t parameters_count() const { return parameters_count_; }
+  size_t locals_count() const { return locals_count_; }
+  size_t stack_count() const { return stack_count_; }
+  FrameStateDescriptor* outer_state() const { return outer_state_; }
+  MaybeHandle<JSFunction> jsfunction() const { return jsfunction_; }
+
+  size_t size() const {
+    return parameters_count_ + locals_count_ + stack_count_ +
+           (HasContext() ? 1 : 0);
   }
 
-  int size() {
-    return parameters_count_ + locals_count_ + stack_count_ +
-           1;  // Includes context.
-  }
-
-  int total_size() {
-    int total_size = 0;
-    for (FrameStateDescriptor* iter = this; iter != NULL;
+  size_t GetTotalSize() const {
+    size_t total_size = 0;
+    for (const FrameStateDescriptor* iter = this; iter != NULL;
          iter = iter->outer_state_) {
       total_size += iter->size();
     }
     return total_size;
   }
 
-  int GetFrameCount() {
-    int count = 0;
-    for (FrameStateDescriptor* iter = this; iter != NULL;
+  size_t GetHeight(OutputFrameStateCombine override) const {
+    size_t height = size() - parameters_count();
+    switch (override) {
+      case kPushOutput:
+        ++height;
+        break;
+      case kIgnoreOutput:
+        break;
+    }
+    return height;
+  }
+
+  size_t GetFrameCount() const {
+    size_t count = 0;
+    for (const FrameStateDescriptor* iter = this; iter != NULL;
          iter = iter->outer_state_) {
       ++count;
     }
     return count;
   }
 
+  size_t GetJSFrameCount() const {
+    size_t count = 0;
+    for (const FrameStateDescriptor* iter = this; iter != NULL;
+         iter = iter->outer_state_) {
+      if (iter->type_ == JS_FRAME) {
+        ++count;
+      }
+    }
+    return count;
+  }
+
+  bool HasContext() const { return type_ == JS_FRAME; }
+
  private:
+  FrameStateType type_;
   BailoutId bailout_id_;
   OutputFrameStateCombine frame_state_combine_;
-  int parameters_count_;
-  int locals_count_;
-  int stack_count_;
+  size_t parameters_count_;
+  size_t locals_count_;
+  size_t stack_count_;
   FrameStateDescriptor* outer_state_;
+  MaybeHandle<JSFunction> jsfunction_;
 };
 
 OStream& operator<<(OStream& os, const Constant& constant);
 
 typedef ZoneDeque<Constant> ConstantDeque;
 typedef std::map<int, Constant, std::less<int>,
                  zone_allocator<std::pair<int, Constant> > > ConstantMap;
 
 typedef ZoneDeque<Instruction*> InstructionDeque;
 typedef ZoneDeque<PointerMap*> PointerMapDeque;
@@ skipping 138 matching lines @@
   DeoptimizationVector deoptimization_entries_;
 };
 
 OStream& operator<<(OStream& os, const InstructionSequence& code);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_H_