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src/arm64/code-stubs-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_ARM64_CODE_STUBS_ARM64_H_
 #define V8_ARM64_CODE_STUBS_ARM64_H_
 
 #include "src/ic-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
 void ArrayNativeCode(MacroAssembler* masm, Label* call_generic_code);
 
 
 class StoreBufferOverflowStub: public PlatformCodeStub {
  public:
   StoreBufferOverflowStub(Isolate* isolate, SaveFPRegsMode save_fp)
       : PlatformCodeStub(isolate), save_doubles_(save_fp) { }
 
   void Generate(MacroAssembler* masm);
 
   static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
   virtual bool SometimesSetsUpAFrame() { return false; }
 
  private:
   SaveFPRegsMode save_doubles_;
 
-  Major MajorKey() { return StoreBufferOverflow; }
-  int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
+  Major MajorKey() const { return StoreBufferOverflow; }
+  int MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
 };
 
 
 class StringHelper : public AllStatic {
  public:
   // TODO(all): These don't seem to be used any more. Delete them.
 
   // Generate string hash.
   static void GenerateHashInit(MacroAssembler* masm,
                                Register hash,
@@ skipping 13 matching lines @@
 
 
 class StoreRegistersStateStub: public PlatformCodeStub {
  public:
   StoreRegistersStateStub(Isolate* isolate, SaveFPRegsMode with_fp)
       : PlatformCodeStub(isolate), save_doubles_(with_fp) {}
 
   static Register to_be_pushed_lr() { return ip0; }
   static void GenerateAheadOfTime(Isolate* isolate);
  private:
-  Major MajorKey() { return StoreRegistersState; }
-  int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
+  Major MajorKey() const { return StoreRegistersState; }
+  int MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
   SaveFPRegsMode save_doubles_;
 
   void Generate(MacroAssembler* masm);
 };
 
 
 class RestoreRegistersStateStub: public PlatformCodeStub {
  public:
   RestoreRegistersStateStub(Isolate* isolate, SaveFPRegsMode with_fp)
       : PlatformCodeStub(isolate), save_doubles_(with_fp) {}
 
   static void GenerateAheadOfTime(Isolate* isolate);
  private:
-  Major MajorKey() { return RestoreRegistersState; }
-  int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
+  Major MajorKey() const { return RestoreRegistersState; }
+  int MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
   SaveFPRegsMode save_doubles_;
 
   void Generate(MacroAssembler* masm);
 };
 
 
 class RecordWriteStub: public PlatformCodeStub {
  public:
   // Stub to record the write of 'value' at 'address' in 'object'.
   // Typically 'address' = 'object' + <some offset>.
@@ skipping 204 matching lines @@
     kReturnOnNoNeedToInformIncrementalMarker,
     kUpdateRememberedSetOnNoNeedToInformIncrementalMarker
   };
 
   void CheckNeedsToInformIncrementalMarker(
       MacroAssembler* masm,
       OnNoNeedToInformIncrementalMarker on_no_need,
       Mode mode);
   void InformIncrementalMarker(MacroAssembler* masm);
 
-  Major MajorKey() { return RecordWrite; }
+  Major MajorKey() const { return RecordWrite; }
 
-  int MinorKey() {
+  int MinorKey() const {
     return MinorKeyFor(object_, value_, address_, remembered_set_action_,
                        save_fp_regs_mode_);
   }
 
   static int MinorKeyFor(Register object,
                          Register value,
                          Register address,
                          RememberedSetAction action,
                          SaveFPRegsMode fp_mode) {
     ASSERT(object.Is64Bits());
@@ skipping 28 matching lines @@
 
 // Helper to call C++ functions from generated code. The caller must prepare
 // the exit frame before doing the call with GenerateCall.
 class DirectCEntryStub: public PlatformCodeStub {
  public:
   explicit DirectCEntryStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
   void Generate(MacroAssembler* masm);
   void GenerateCall(MacroAssembler* masm, Register target);
 
  private:
-  Major MajorKey() { return DirectCEntry; }
-  int MinorKey() { return 0; }
+  Major MajorKey() const { return DirectCEntry; }
+  int MinorKey() const { return 0; }
 
   bool NeedsImmovableCode() { return true; }
 };
 
 
 class NameDictionaryLookupStub: public PlatformCodeStub {
  public:
   enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP };
 
   NameDictionaryLookupStub(Isolate* isolate, LookupMode mode)
@@ skipping 24 matching lines @@
   static const int kTotalProbes = 20;
 
   static const int kCapacityOffset =
       NameDictionary::kHeaderSize +
       NameDictionary::kCapacityIndex * kPointerSize;
 
   static const int kElementsStartOffset =
       NameDictionary::kHeaderSize +
       NameDictionary::kElementsStartIndex * kPointerSize;
 
-  Major MajorKey() { return NameDictionaryLookup; }
+  Major MajorKey() const { return NameDictionaryLookup; }
 
-  int MinorKey() {
-    return LookupModeBits::encode(mode_);
-  }
+  int MinorKey() const { return LookupModeBits::encode(mode_); }
 
   class LookupModeBits: public BitField<LookupMode, 0, 1> {};
 
   LookupMode mode_;
 };
 
 
 class SubStringStub: public PlatformCodeStub {
  public:
   explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
  private:
-  Major MajorKey() { return SubString; }
-  int MinorKey() { return 0; }
+  Major MajorKey() const { return SubString; }
+  int MinorKey() const { return 0; }
 
   void Generate(MacroAssembler* masm);
 };
 
 
 class StringCompareStub: public PlatformCodeStub {
  public:
   explicit StringCompareStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
 
   // Compares two flat ASCII strings and returns result in x0.
   static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm,
                                               Register left,
                                               Register right,
                                               Register scratch1,
                                               Register scratch2,
                                               Register scratch3,
                                               Register scratch4);
 
   // Compare two flat ASCII strings for equality and returns result
   // in x0.
   static void GenerateFlatAsciiStringEquals(MacroAssembler* masm,
                                             Register left,
                                             Register right,
                                             Register scratch1,
                                             Register scratch2,
                                             Register scratch3);
 
  private:
-  virtual Major MajorKey() { return StringCompare; }
-  virtual int MinorKey() { return 0; }
+  virtual Major MajorKey() const { return StringCompare; }
+  virtual int MinorKey() const { return 0; }
   virtual void Generate(MacroAssembler* masm);
 
   static void GenerateAsciiCharsCompareLoop(MacroAssembler* masm,
                                             Register left,
                                             Register right,
                                             Register length,
                                             Register scratch1,
                                             Register scratch2,
                                             Label* chars_not_equal);
 };
 
 
 class PlatformCallInterfaceDescriptor {
  public:
   explicit PlatformCallInterfaceDescriptor(
       TargetAddressStorageMode storage_mode)
       : storage_mode_(storage_mode) { }
 
   TargetAddressStorageMode storage_mode() { return storage_mode_; }
 
  private:
   TargetAddressStorageMode storage_mode_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_CODE_STUBS_ARM64_H_