More simplification and unification of frame handling

src/crankshaft/arm64/lithium-codegen-arm64.h

 // Copyright 2013 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_CRANKSHAFT_ARM64_LITHIUM_CODEGEN_ARM64_H_
 #define V8_CRANKSHAFT_ARM64_LITHIUM_CODEGEN_ARM64_H_
 
 #include "src/crankshaft/arm64/lithium-arm64.h"
 
 #include "src/ast/scopes.h"
@@ skipping 31 matching lines @@
 
   int LookupDestination(int block_id) const {
     return chunk()->LookupDestination(block_id);
   }
 
   bool IsNextEmittedBlock(int block_id) const {
     return LookupDestination(block_id) == GetNextEmittedBlock();
   }
 
   bool NeedsEagerFrame() const {
-    return GetStackSlotCount() > 0 ||
-        info()->is_non_deferred_calling() ||
-        !info()->IsStub() ||
-        info()->requires_frame();
+    return HasAllocatedStackSlots() || info()->is_non_deferred_calling() ||
+           !info()->IsStub() || info()->requires_frame();
   }
   bool NeedsDeferredFrame() const {
     return !NeedsEagerFrame() && info()->is_deferred_calling();
   }
 
   LinkRegisterStatus GetLinkRegisterState() const {
     return frame_is_built_ ? kLRHasBeenSaved : kLRHasNotBeenSaved;
   }
 
   // Try to generate code for the entire chunk, but it may fail if the
@@ skipping 180 matching lines @@
                                       Register elements,
                                       Register key,
                                       bool key_is_tagged,
                                       ElementsKind elements_kind,
                                       Representation representation,
                                       int base_offset);
 
   void RegisterEnvironmentForDeoptimization(LEnvironment* environment,
                                             Safepoint::DeoptMode mode);
 
-  int GetStackSlotCount() const { return chunk()->spill_slot_count(); }
+  bool HasAllocatedStackSlots() const {
+    return chunk()->HasAllocatedStackSlots();
+  }
+  int GetStackSlotCount() const { return chunk()->GetSpillSlotCount(); }
+  int GetTotalFrameSlotCount() const {
+    return chunk()->GetTotalFrameSlotCount();
+  }
 
   void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); }
 
   // Emit frame translation commands for an environment.
   void WriteTranslation(LEnvironment* environment, Translation* translation);
 
   void AddToTranslation(LEnvironment* environment,
                         Translation* translation,
                         LOperand* op,
                         bool is_tagged,
@@ skipping 184 matching lines @@
  protected:
   MacroAssembler* masm() const { return codegen_->masm(); }
 
   LCodeGen* codegen_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_ARM64_LITHIUM_CODEGEN_ARM64_H_