63     void SetGCWords(uint32_t index) // Only used for snapshot to record region index  in SetGCWords()  argument
65         *reinterpret_cast<GCBitsetWord *>(this) = index;  in SetGCWords()
92         Words()[Index(offset)] &= ~Mask(IndexInWord(offset));  in ClearBit()
99         uint32_t startIndex = Index(offsetBegin);  in ClearBitRange()
101         uint32_t endIndex = Index(offsetEnd - 1);  in ClearBitRange()
117         return Words()[Index(offset)] & Mask(IndexInWord(offset));  in TestBit()
125         uint32_t index = BIT_PER_WORD;  in IterateMarkedBits()  local
129                 index = static_cast<uint32_t>(__builtin_ctz(word));  in IterateMarkedBits()
130                 ASSERT(index < BIT_PER_WORD);  in IterateMarkedBits()
131                 if (!visitor(reinterpret_cast<void *>(begin + (index << TAGGED_TYPE_SIZE_LOG)))) {  in IterateMarkedBits()
132                     ClearWord<mode>(i, Mask(index));  in IterateMarkedBits()
134                 word &= ~(1u << index);  in IterateMarkedBits()
145         uint32_t index = BIT_PER_WORD;  in IterateMarkedBitsConst()  local
149                 index = static_cast<uint32_t>(__builtin_ctz(word));  in IterateMarkedBitsConst()
150                 ASSERT(index < BIT_PER_WORD);  in IterateMarkedBitsConst()
151                 visitor(reinterpret_cast<void *>(begin + (index << TAGGED_TYPE_SIZE_LOG)));  in IterateMarkedBitsConst()
152                 word &= ~(1u << index);  in IterateMarkedBitsConst()
168     GCBitsetWord Mask(size_t index) const  in Mask()  argument
170         return 1 << index;  in Mask()
178     size_t Index(uintptr_t offset) const  in Index()  function
189     bool ClearWord(uint32_t index, uint32_t mask);
192     bool ClearWord<AccessType::NON_ATOMIC>(uint32_t index, uint32_t mask)
194         if ((Words()[index] & mask) == 0) {
197         Words()[index] &= ~mask;
202     bool ClearWord<AccessType::ATOMIC>(uint32_t index, uint32_t mask)
204         auto word = reinterpret_cast<std::atomic<GCBitsetWord> *>(&Words()[index]);
218     size_t index = Index(offset);  variable
220     if (Words()[index] & mask) {
223     Words()[index] |= mask;
230     auto word = reinterpret_cast<std::atomic<GCBitsetWord> *>(&Words()[Index(offset)]);