MIPS: port all relevant commits since the new-gc was landed.

src/mips/code-stubs-mips.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 48 matching lines @@
 };
 
 
 class StoreBufferOverflowStub: public CodeStub {
  public:
   explicit StoreBufferOverflowStub(SaveFPRegsMode save_fp)
       : save_doubles_(save_fp) { }
 
   void Generate(MacroAssembler* masm);
 
-  virtual bool CompilingCallsToThisStubIsGCSafe() { return true; }
+  virtual bool IsPregenerated();
   static void GenerateFixedRegStubsAheadOfTime();
   virtual bool SometimesSetsUpAFrame() { return false; }
 
  private:
   SaveFPRegsMode save_doubles_;
 
   Major MajorKey() { return StoreBufferOverflow; }
   int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
 };
 
@@ skipping 263 matching lines @@
       : the_int_(the_int),
         the_heap_number_(the_heap_number),
         scratch_(scratch),
         sign_(scratch2) {
     ASSERT(IntRegisterBits::is_valid(the_int_.code()));
     ASSERT(HeapNumberRegisterBits::is_valid(the_heap_number_.code()));
     ASSERT(ScratchRegisterBits::is_valid(scratch_.code()));
     ASSERT(SignRegisterBits::is_valid(sign_.code()));
   }
 
-  bool CompilingCallsToThisStubIsGCSafe();
+  bool IsPregenerated();
   static void GenerateFixedRegStubsAheadOfTime();
 
  private:
   Register the_int_;
   Register the_heap_number_;
   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() { return WriteInt32ToHeapNumber; }
   int MinorKey() {
     // 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());
+           | ScratchRegisterBits::encode(scratch_.code())
+           | SignRegisterBits::encode(sign_.code());
   }
 
   void Generate(MacroAssembler* masm);
 };
 
 
 class NumberToStringStub: public CodeStub {
  public:
   NumberToStringStub() { }
 
@@ skipping 35 matching lines @@
               address,  // An input reg.
               value) {  // One scratch reg.
   }
 
   enum Mode {
     STORE_BUFFER_ONLY,
     INCREMENTAL,
     INCREMENTAL_COMPACTION
   };
 
-  virtual bool CompilingCallsToThisStubIsGCSafe();
+  virtual bool IsPregenerated();
   static void GenerateFixedRegStubsAheadOfTime();
   virtual bool SometimesSetsUpAFrame() { return false; }
 
   static void PatchBranchIntoNop(MacroAssembler* masm, int pos) {
     const unsigned offset = masm->instr_at(pos) & kImm16Mask;
     masm->instr_at_put(pos, BNE | (zero_reg.code() << kRsShift) |
         (zero_reg.code() << kRtShift) | (offset & kImm16Mask));
     ASSERT(Assembler::IsBne(masm->instr_at(pos)));
   }
 
@@ skipping 397 matching lines @@
 
   class LookupModeBits: public BitField<LookupMode, 0, 1> {};
 
   LookupMode mode_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_CODE_STUBS_ARM_H_