142 ShenandoahMarkBitMap(MemRegion heap, MemRegion storage);
143
144 // Mark word as 'strong' if it hasn't been marked strong yet.
145 // Return true if the word has been marked strong, false if it has already been
146 // marked strong or if another thread has beat us by marking it
147 // strong.
148 // Words that have been marked final before or by a concurrent thread will be
149 // upgraded to strong. In this case, this method also returns true.
150 inline bool mark_strong(HeapWord* w, bool& was_upgraded);
151
152 // Mark word as 'weak' if it hasn't been marked weak or strong yet.
153 // Return true if the word has been marked weak, false if it has already been
154 // marked strong or weak or if another thread has beat us by marking it
155 // strong or weak.
156 inline bool mark_weak(HeapWord* heap_addr);
157
158 inline bool is_marked(HeapWord* addr) const;
159 inline bool is_marked_strong(HeapWord* w) const;
160 inline bool is_marked_weak(HeapWord* addr) const;
161
162 // Return the address corresponding to the next marked bit at or after
163 // "addr", and before "limit", if "limit" is non-NULL. If there is no
164 // such bit, returns "limit" if that is non-NULL, or else "endWord()".
165 HeapWord* get_next_marked_addr(const HeapWord* addr,
166 const HeapWord* limit) const;
167
168 bm_word_t inverted_bit_mask_for_range(idx_t beg, idx_t end) const;
169 void clear_range_within_word (idx_t beg, idx_t end);
170 void clear_range (idx_t beg, idx_t end);
171 void clear_range_large(MemRegion mr);
172
173 void clear_range_of_words(idx_t beg, idx_t end);
174 void clear_large_range_of_words(idx_t beg, idx_t end);
175 static void clear_range_of_words(bm_word_t* map, idx_t beg, idx_t end);
176
177 };
178
179 #endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHMARKBITMAP_HPP
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142 ShenandoahMarkBitMap(MemRegion heap, MemRegion storage);
143
144 // Mark word as 'strong' if it hasn't been marked strong yet.
145 // Return true if the word has been marked strong, false if it has already been
146 // marked strong or if another thread has beat us by marking it
147 // strong.
148 // Words that have been marked final before or by a concurrent thread will be
149 // upgraded to strong. In this case, this method also returns true.
150 inline bool mark_strong(HeapWord* w, bool& was_upgraded);
151
152 // Mark word as 'weak' if it hasn't been marked weak or strong yet.
153 // Return true if the word has been marked weak, false if it has already been
154 // marked strong or weak or if another thread has beat us by marking it
155 // strong or weak.
156 inline bool mark_weak(HeapWord* heap_addr);
157
158 inline bool is_marked(HeapWord* addr) const;
159 inline bool is_marked_strong(HeapWord* w) const;
160 inline bool is_marked_weak(HeapWord* addr) const;
161
162 bool is_bitmap_clear_range(const HeapWord* start, const HeapWord* end) const;
163
164 // Return the address corresponding to the next marked bit at or after
165 // "addr", and before "limit", if "limit" is non-NULL. If there is no
166 // such bit, returns "limit" if that is non-NULL, or else "endWord()".
167 HeapWord* get_next_marked_addr(const HeapWord* addr,
168 const HeapWord* limit) const;
169
170 bm_word_t inverted_bit_mask_for_range(idx_t beg, idx_t end) const;
171 void clear_range_within_word (idx_t beg, idx_t end);
172 void clear_range (idx_t beg, idx_t end);
173 void clear_range_large(MemRegion mr);
174
175 void clear_range_of_words(idx_t beg, idx_t end);
176 void clear_large_range_of_words(idx_t beg, idx_t end);
177 static void clear_range_of_words(bm_word_t* map, idx_t beg, idx_t end);
178
179 };
180
181 #endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHMARKBITMAP_HPP
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