Mercurial > hg > graal-jvmci-8
comparison src/share/vm/utilities/bitMap.inline.hpp @ 12355:cefad50507d8
Merge with hs25-b53
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Fri, 11 Oct 2013 10:38:03 +0200 |
parents | 17deed6716af |
children | de6a9e811145 |
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12058:ccb4f2af2319 | 12355:cefad50507d8 |
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50 *word_addr(bit) &= ~bit_mask(bit); | 50 *word_addr(bit) &= ~bit_mask(bit); |
51 } | 51 } |
52 | 52 |
53 inline bool BitMap::par_set_bit(idx_t bit) { | 53 inline bool BitMap::par_set_bit(idx_t bit) { |
54 verify_index(bit); | 54 verify_index(bit); |
55 volatile idx_t* const addr = word_addr(bit); | 55 volatile bm_word_t* const addr = word_addr(bit); |
56 const idx_t mask = bit_mask(bit); | 56 const bm_word_t mask = bit_mask(bit); |
57 idx_t old_val = *addr; | 57 bm_word_t old_val = *addr; |
58 | 58 |
59 do { | 59 do { |
60 const idx_t new_val = old_val | mask; | 60 const bm_word_t new_val = old_val | mask; |
61 if (new_val == old_val) { | 61 if (new_val == old_val) { |
62 return false; // Someone else beat us to it. | 62 return false; // Someone else beat us to it. |
63 } | 63 } |
64 const idx_t cur_val = (idx_t) Atomic::cmpxchg_ptr((void*) new_val, | 64 const bm_word_t cur_val = (bm_word_t) Atomic::cmpxchg_ptr((void*) new_val, |
65 (volatile void*) addr, | 65 (volatile void*) addr, |
66 (void*) old_val); | 66 (void*) old_val); |
67 if (cur_val == old_val) { | 67 if (cur_val == old_val) { |
68 return true; // Success. | 68 return true; // Success. |
69 } | 69 } |
71 } while (true); | 71 } while (true); |
72 } | 72 } |
73 | 73 |
74 inline bool BitMap::par_clear_bit(idx_t bit) { | 74 inline bool BitMap::par_clear_bit(idx_t bit) { |
75 verify_index(bit); | 75 verify_index(bit); |
76 volatile idx_t* const addr = word_addr(bit); | 76 volatile bm_word_t* const addr = word_addr(bit); |
77 const idx_t mask = ~bit_mask(bit); | 77 const bm_word_t mask = ~bit_mask(bit); |
78 idx_t old_val = *addr; | 78 bm_word_t old_val = *addr; |
79 | 79 |
80 do { | 80 do { |
81 const idx_t new_val = old_val & mask; | 81 const bm_word_t new_val = old_val & mask; |
82 if (new_val == old_val) { | 82 if (new_val == old_val) { |
83 return false; // Someone else beat us to it. | 83 return false; // Someone else beat us to it. |
84 } | 84 } |
85 const idx_t cur_val = (idx_t) Atomic::cmpxchg_ptr((void*) new_val, | 85 const bm_word_t cur_val = (bm_word_t) Atomic::cmpxchg_ptr((void*) new_val, |
86 (volatile void*) addr, | 86 (volatile void*) addr, |
87 (void*) old_val); | 87 (void*) old_val); |
88 if (cur_val == old_val) { | 88 if (cur_val == old_val) { |
89 return true; // Success. | 89 return true; // Success. |
90 } | 90 } |