Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/loopTransform.cpp
src/share/vm/opto/loopTransform.cpp
- changeset 2899
- 3b1d58916d5f
- parent 2880
- f879eafd5835
- child 2915
- 38569792a45a
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| 2898:e2a92dd0d3d2 | 2899:3b1d58916d5f |
|---|---|
| 1228 // no underflow if limit is constant. | 1228 // no underflow if limit is constant. |
| 1229 new_limit = _igvn.intcon(limit->get_int() - stride_con); | 1229 new_limit = _igvn.intcon(limit->get_int() - stride_con); |
| 1230 set_ctrl(new_limit, C->root()); | 1230 set_ctrl(new_limit, C->root()); |
| 1231 } else { | 1231 } else { |
| 1232 // Limit is not constant. | 1232 // Limit is not constant. |
| 1233 { | 1233 if (loop_head->unrolled_count() == 1) { // only for first unroll |
| 1234 // Separate limit by Opaque node in case it is an incremented | 1234 // Separate limit by Opaque node in case it is an incremented |
| 1235 // variable from previous loop to avoid using pre-incremented | 1235 // variable from previous loop to avoid using pre-incremented |
| 1236 // value which could increase register pressure. | 1236 // value which could increase register pressure. |
| 1237 // Otherwise reorg_offsets() optimization will create a separate | 1237 // Otherwise reorg_offsets() optimization will create a separate |
| 1238 // Opaque node for each use of trip-counter and as result | 1238 // Opaque node for each use of trip-counter and as result |
