Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/compile.cpp
src/share/vm/opto/compile.cpp
- changeset 688
- b0fe4deeb9fb
- parent 682
- 02a35ad4adf8
- child 728
- c3e045194476
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| 687:be7facf71163 | 688:b0fe4deeb9fb |
|---|---|
| 583 NOT_PRODUCT( verify_graph_edges(); ) | 583 NOT_PRODUCT( verify_graph_edges(); ) |
| 584 | 584 |
| 585 // Perform escape analysis | 585 // Perform escape analysis |
| 586 if (_do_escape_analysis && ConnectionGraph::has_candidates(this)) { | 586 if (_do_escape_analysis && ConnectionGraph::has_candidates(this)) { |
| 587 TracePhase t2("escapeAnalysis", &_t_escapeAnalysis, true); | 587 TracePhase t2("escapeAnalysis", &_t_escapeAnalysis, true); |
| 588 // Add ConP#NULL and ConN#NULL nodes before ConnectionGraph construction. | |
| 589 PhaseGVN* igvn = initial_gvn(); | |
| 590 Node* oop_null = igvn->zerocon(T_OBJECT); | |
| 591 Node* noop_null = igvn->zerocon(T_NARROWOOP); | |
| 588 | 592 |
| 589 _congraph = new(comp_arena()) ConnectionGraph(this); | 593 _congraph = new(comp_arena()) ConnectionGraph(this); |
| 590 bool has_non_escaping_obj = _congraph->compute_escape(); | 594 bool has_non_escaping_obj = _congraph->compute_escape(); |
| 591 | 595 |
| 592 #ifndef PRODUCT | 596 #ifndef PRODUCT |
| 593 if (PrintEscapeAnalysis) { | 597 if (PrintEscapeAnalysis) { |
| 594 _congraph->dump(); | 598 _congraph->dump(); |
| 595 } | 599 } |
| 596 #endif | 600 #endif |
| 601 // Cleanup. | |
| 602 if (oop_null->outcnt() == 0) | |
| 603 igvn->hash_delete(oop_null); | |
| 604 if (noop_null->outcnt() == 0) | |
| 605 igvn->hash_delete(noop_null); | |
| 606 | |
| 597 if (!has_non_escaping_obj) { | 607 if (!has_non_escaping_obj) { |
| 598 _congraph = NULL; | 608 _congraph = NULL; |
| 599 } | 609 } |
| 600 | 610 |
| 601 if (failing()) return; | 611 if (failing()) return; |
