Mercurial > hg > graal-jvmci-8
comparison src/share/vm/opto/node.hpp @ 23471:70649f10b88c
8129847: Compiling methods generated by Nashorn triggers high memory usage in C2
Summary: Add a new compiler phase, PhaseRenumberLive, that renumbers live nodes.
Reviewed-by: kvn, thartmann, vlivanov, shade
| author | zmajo |
|---|---|
| date | Tue, 15 Dec 2015 09:46:51 +0100 |
| parents | 9df0d8f65fea |
| children | 7c5babab479b |
comparison
equal
deleted
inserted
replaced
| 23469:c1679cc87ba0 | 23471:70649f10b88c |
|---|---|
| 292 // Grow the output array to the next larger power-of-2 bigger than len. | 292 // Grow the output array to the next larger power-of-2 bigger than len. |
| 293 void out_grow( uint len ); | 293 void out_grow( uint len ); |
| 294 | 294 |
| 295 public: | 295 public: |
| 296 // Each Node is assigned a unique small/dense number. This number is used | 296 // Each Node is assigned a unique small/dense number. This number is used |
| 297 // to index into auxiliary arrays of data and bitvectors. | 297 // to index into auxiliary arrays of data and bit vectors. |
| 298 // It is declared const to defend against inadvertant assignment, | 298 // The field _idx is declared constant to defend against inadvertent assignments, |
| 299 // since it is used by clients as a naked field. | 299 // since it is used by clients as a naked field. However, the field's value can be |
| 300 // changed using the set_idx() method. | |
| 301 // | |
| 302 // The PhaseRenumberLive phase renumbers nodes based on liveness information. | |
| 303 // Therefore, it updates the value of the _idx field. The parse-time _idx is | |
| 304 // preserved in _parse_idx. | |
| 300 const node_idx_t _idx; | 305 const node_idx_t _idx; |
| 306 DEBUG_ONLY(const node_idx_t _parse_idx;) | |
| 301 | 307 |
| 302 // Get the (read-only) number of input edges | 308 // Get the (read-only) number of input edges |
| 303 uint req() const { return _cnt; } | 309 uint req() const { return _cnt; } |
| 304 uint len() const { return _max; } | 310 uint len() const { return _max; } |
| 305 // Get the (read-only) number of output edges | 311 // Get the (read-only) number of output edges |