Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/block.cpp
src/share/vm/opto/block.cpp
- changeset 1040
- 98cb887364d3
- parent 1036
- 523ded093c31
- child 1063
- 7bb995fbd3c0
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| 1039:ec59443af135 | 1040:98cb887364d3 |
|---|---|
| 179 | 179 |
| 180 return not_empty; | 180 return not_empty; |
| 181 } | 181 } |
| 182 | 182 |
| 183 //------------------------------has_uncommon_code------------------------------ | 183 //------------------------------has_uncommon_code------------------------------ |
| 184 // Return true if the block's code implies that it is not likely to be | 184 // Return true if the block's code implies that it is likely to be |
| 185 // executed infrequently. Check to see if the block ends in a Halt or | 185 // executed infrequently. Check to see if the block ends in a Halt or |
| 186 // a low probability call. | 186 // a low probability call. |
| 187 bool Block::has_uncommon_code() const { | 187 bool Block::has_uncommon_code() const { |
| 188 Node* en = end(); | 188 Node* en = end(); |
| 189 | 189 |
| 1309 union_traces(targ_trace, src_trace); | 1309 union_traces(targ_trace, src_trace); |
| 1310 } | 1310 } |
| 1311 } | 1311 } |
| 1312 } else if (e->state() == CFGEdge::open) { | 1312 } else if (e->state() == CFGEdge::open) { |
| 1313 // Append traces, even without a fall-thru connection. | 1313 // Append traces, even without a fall-thru connection. |
| 1314 // But leave root entry at the begining of the block list. | 1314 // But leave root entry at the beginning of the block list. |
| 1315 if (targ_trace != trace(_cfg._broot)) { | 1315 if (targ_trace != trace(_cfg._broot)) { |
| 1316 e->set_state(CFGEdge::connected); | 1316 e->set_state(CFGEdge::connected); |
| 1317 src_trace->append(targ_trace); | 1317 src_trace->append(targ_trace); |
| 1318 union_traces(src_trace, targ_trace); | 1318 union_traces(src_trace, targ_trace); |
| 1319 } | 1319 } |
| 1432 break_loop_after(b); | 1432 break_loop_after(b); |
| 1433 } | 1433 } |
| 1434 } | 1434 } |
| 1435 | 1435 |
| 1436 // Backbranch to the top of a trace | 1436 // Backbranch to the top of a trace |
| 1437 // Scroll foward through the trace from the targ_block. If we find | 1437 // Scroll forward through the trace from the targ_block. If we find |
| 1438 // a loop head before another loop top, use the the loop head alignment. | 1438 // a loop head before another loop top, use the the loop head alignment. |
| 1439 for (Block *b = targ_block; b != NULL; b = next(b)) { | 1439 for (Block *b = targ_block; b != NULL; b = next(b)) { |
| 1440 if (b->has_loop_alignment()) { | 1440 if (b->has_loop_alignment()) { |
| 1441 break; | 1441 break; |
| 1442 } | 1442 } |
