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src/arm/code-stubs-arm.h

 // Copyright 2012 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_ARM_CODE_STUBS_ARM_H_
 #define V8_ARM_CODE_STUBS_ARM_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:
   // Generate code for copying a large number of characters. This function
   // is allowed to spend extra time setting up conditions to make copying
   // faster. Copying of overlapping regions is not supported.
   // Dest register ends at the position after the last character written.
   static void GenerateCopyCharacters(MacroAssembler* masm,
@@ skipping 19 matching lines @@
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper);
 };
 
 
 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 r0.
   static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm,
                                               Register left,
                                               Register right,
                                               Register scratch1,
                                               Register scratch2,
                                               Register scratch3,
                                               Register scratch4);
 
   // Compares two flat ASCII strings for equality and returns result
   // in r0.
   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);
 };
@@ skipping 18 matching lines @@
  private:
   Register the_int_;
   Register the_heap_number_;
   Register scratch_;
 
   // Minor key encoding in 16 bits.
   class IntRegisterBits: public BitField<int, 0, 4> {};
   class HeapNumberRegisterBits: public BitField<int, 4, 4> {};
   class ScratchRegisterBits: public BitField<int, 8, 4> {};
 
-  Major MajorKey() { return WriteInt32ToHeapNumber; }
-  int MinorKey() {
+  Major MajorKey() const { return WriteInt32ToHeapNumber; }
+  int MinorKey() const {
     // Encode the parameters in a unique 16 bit value.
     return IntRegisterBits::encode(the_int_.code())
            | HeapNumberRegisterBits::encode(the_heap_number_.code())
            | ScratchRegisterBits::encode(scratch_.code());
   }
 
   void Generate(MacroAssembler* masm);
 };
 
 
@@ skipping 144 matching lines @@
   };
 
   void Generate(MacroAssembler* masm);
   void GenerateIncremental(MacroAssembler* masm, Mode mode);
   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 ObjectBits::encode(object_.code()) |
         ValueBits::encode(value_.code()) |
         AddressBits::encode(address_.code()) |
         RememberedSetActionBits::encode(remembered_set_action_) |
         SaveFPRegsModeBits::encode(save_fp_regs_mode_);
   }
 
   void Activate(Code* code) {
     code->GetHeap()->incremental_marking()->ActivateGeneratedStub(code);
   }
@@ skipping 19 matching lines @@
 // keep the code which called into native pinned in the memory. Currently the
 // simplest approach is to generate such stub early enough so it can never be
 // moved by GC
 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 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_ARM_CODE_STUBS_ARM_H_