Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/loopTransform.cpp
src/share/vm/opto/loopTransform.cpp
- changeset 6070
- 94a83e0f9ce1
- parent 6049
- 60a32bb8ff99
- child 6198
- 55fb97c4c58d
- child 6485
- da862781b584
equal
deleted
inserted
replaced
| 6069:a905d33ce13a | 6070:94a83e0f9ce1 |
|---|---|
| 1962 assert(iff->is_If(), ""); | 1962 assert(iff->is_If(), ""); |
| 1963 ProjNode* dp = ((IfNode*)iff)->proj_out(1-flip); | 1963 ProjNode* dp = ((IfNode*)iff)->proj_out(1-flip); |
| 1964 // Find loads off the surviving projection; remove their control edge | 1964 // Find loads off the surviving projection; remove their control edge |
| 1965 for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) { | 1965 for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) { |
| 1966 Node* cd = dp->fast_out(i); // Control-dependent node | 1966 Node* cd = dp->fast_out(i); // Control-dependent node |
| 1967 if( cd->is_Load() ) { // Loads can now float around in the loop | 1967 if (cd->is_Load() && cd->depends_only_on_test()) { // Loads can now float around in the loop |
| 1968 // Allow the load to float around in the loop, or before it | 1968 // Allow the load to float around in the loop, or before it |
| 1969 // but NOT before the pre-loop. | 1969 // but NOT before the pre-loop. |
| 1970 _igvn.replace_input_of(cd, 0, ctrl); // ctrl, not NULL | 1970 _igvn.replace_input_of(cd, 0, ctrl); // ctrl, not NULL |
| 1971 --i; | 1971 --i; |
| 1972 --imax; | 1972 --imax; |
