Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/gcm.cpp
src/share/vm/opto/gcm.cpp
- changeset 670
- 9c2ecc2ffb12
- parent 631
- d1605aabd0a1
- parent 650
- 273eaa04d9a1
- child 743
- 756b58154237
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replaced
| 632:de141433919f | 670:9c2ecc2ffb12 |
|---|---|
| 305 Block* mid = worklist.pop(); | 305 Block* mid = worklist.pop(); |
| 306 if (mid == early) continue; // stop searching here | 306 if (mid == early) continue; // stop searching here |
| 307 | 307 |
| 308 // Test and set the visited bit. | 308 // Test and set the visited bit. |
| 309 if (mid->raise_LCA_visited() == mark) continue; // already visited | 309 if (mid->raise_LCA_visited() == mark) continue; // already visited |
| 310 mid->set_raise_LCA_visited(mark); | |
| 311 | 310 |
| 312 // Don't process the current LCA, otherwise the search may terminate early | 311 // Don't process the current LCA, otherwise the search may terminate early |
| 313 if (mid != LCA && mid->raise_LCA_mark() == mark) { | 312 if (mid != LCA && mid->raise_LCA_mark() == mark) { |
| 314 // Raise the LCA. | 313 // Raise the LCA. |
| 315 LCA = mid->dom_lca(LCA); | 314 LCA = mid->dom_lca(LCA); |
| 316 if (LCA == early) break; // stop searching everywhere | 315 if (LCA == early) break; // stop searching everywhere |
| 317 assert(early->dominates(LCA), "early is high enough"); | 316 assert(early->dominates(LCA), "early is high enough"); |
| 318 // Resume searching at that point, skipping intermediate levels. | 317 // Resume searching at that point, skipping intermediate levels. |
| 319 worklist.push(LCA); | 318 worklist.push(LCA); |
| 319 if (LCA == mid) | |
| 320 continue; // Don't mark as visited to avoid early termination. | |
| 320 } else { | 321 } else { |
| 321 // Keep searching through this block's predecessors. | 322 // Keep searching through this block's predecessors. |
| 322 for (uint j = 1, jmax = mid->num_preds(); j < jmax; j++) { | 323 for (uint j = 1, jmax = mid->num_preds(); j < jmax; j++) { |
| 323 Block* mid_parent = bbs[ mid->pred(j)->_idx ]; | 324 Block* mid_parent = bbs[ mid->pred(j)->_idx ]; |
| 324 worklist.push(mid_parent); | 325 worklist.push(mid_parent); |
| 325 } | 326 } |
| 326 } | 327 } |
| 328 mid->set_raise_LCA_visited(mark); | |
| 327 } | 329 } |
| 328 return LCA; | 330 return LCA; |
| 329 } | 331 } |
| 330 | 332 |
| 331 //--------------------------memory_early_block-------------------------------- | 333 //--------------------------memory_early_block-------------------------------- |
