Encode CEntryStub properties in the minor key.

src/mips/code-stubs-mips.h

 // Copyright 2011 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_MIPS_CODE_STUBS_ARM_H_
 #define V8_MIPS_CODE_STUBS_ARM_H_
 
 #include "src/code-stubs.h"
 
 
@@ skipping 11 matching lines @@
 
   void Generate(MacroAssembler* masm);
 
   static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
   virtual bool SometimesSetsUpAFrame() { return false; }
 
  private:
   SaveFPRegsMode save_doubles_;
 
   Major MajorKey() const { return StoreBufferOverflow; }
-  int MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
+  uint32_t 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 20 matching lines @@
   DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper);
 };
 
 
 class SubStringStub: public PlatformCodeStub {
  public:
   explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
  private:
   Major MajorKey() const { return SubString; }
-  int MinorKey() const { return 0; }
+  uint32_t MinorKey() const { return 0; }
 
   void Generate(MacroAssembler* masm);
 };
 
 
 class StoreRegistersStateStub: public PlatformCodeStub {
  public:
   explicit StoreRegistersStateStub(Isolate* isolate)
       : PlatformCodeStub(isolate) {}
 
   static void GenerateAheadOfTime(Isolate* isolate);
  private:
   Major MajorKey() const { return StoreRegistersState; }
-  int MinorKey() const { return 0; }
+  uint32_t MinorKey() const { return 0; }
 
   void Generate(MacroAssembler* masm);
 };
 
 class RestoreRegistersStateStub: public PlatformCodeStub {
  public:
   explicit RestoreRegistersStateStub(Isolate* isolate)
       : PlatformCodeStub(isolate) {}
 
   static void GenerateAheadOfTime(Isolate* isolate);
  private:
   Major MajorKey() const { return RestoreRegistersState; }
-  int MinorKey() const { return 0; }
+  uint32_t MinorKey() const { return 0; }
 
   void Generate(MacroAssembler* masm);
 };
 
 class StringCompareStub: public PlatformCodeStub {
  public:
   explicit StringCompareStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
 
   // Compare two flat ASCII strings and returns result in v0.
   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 v0.
   static void GenerateFlatAsciiStringEquals(MacroAssembler* masm,
                                             Register left,
                                             Register right,
                                             Register scratch1,
                                             Register scratch2,
                                             Register scratch3);
 
  private:
   virtual Major MajorKey() const { return StringCompare; }
-  virtual int MinorKey() const { return 0; }
+  virtual uint32_t MinorKey() const { return 0; }
   virtual void Generate(MacroAssembler* masm);
 
   static void GenerateAsciiCharsCompareLoop(MacroAssembler* masm,
                                             Register left,
                                             Register right,
                                             Register length,
                                             Register scratch1,
                                             Register scratch2,
                                             Register scratch3,
                                             Label* chars_not_equal);
@@ skipping 29 matching lines @@
   Register scratch_;
   Register sign_;
 
   // 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> {};
   class SignRegisterBits: public BitField<int, 12, 4> {};
 
   Major MajorKey() const { return WriteInt32ToHeapNumber; }
-  int MinorKey() const {
+  uint32_t 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())
            | SignRegisterBits::encode(sign_.code());
   }
 
   void Generate(MacroAssembler* masm);
 };
 
@@ skipping 151 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() const { return RecordWrite; }
 
-  int MinorKey() const {
+  uint32_t 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 20 matching lines @@
 // 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() const { return DirectCEntry; }
-  int MinorKey() const { return 0; }
+  uint32_t 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 26 matching lines @@
   static const int kCapacityOffset =
       NameDictionary::kHeaderSize +
       NameDictionary::kCapacityIndex * kPointerSize;
 
   static const int kElementsStartOffset =
       NameDictionary::kHeaderSize +
       NameDictionary::kElementsStartIndex * kPointerSize;
 
   Major MajorKey() const { return NameDictionaryLookup; }
 
-  int MinorKey() const { return LookupModeBits::encode(mode_); }
+  uint32_t MinorKey() const { return LookupModeBits::encode(mode_); }
 
   class LookupModeBits: public BitField<LookupMode, 0, 1> {};
 
   LookupMode mode_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_CODE_STUBS_ARM_H_