Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/c1/c1_Optimizer.cpp
src/share/vm/c1/c1_Optimizer.cpp
- changeset 9715
- e0e66aba375a
- parent 6198
- 55fb97c4c58d
- child 9756
- 2be326848943
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| 9714:e49125a0c77c | 9715:e0e66aba375a |
|---|---|
| 173 ); | 173 ); |
| 174 // true and false blocks can't have phis | 174 // true and false blocks can't have phis |
| 175 for_each_phi_fun(t_block, phi, return; ); | 175 for_each_phi_fun(t_block, phi, return; ); |
| 176 for_each_phi_fun(f_block, phi, return; ); | 176 for_each_phi_fun(f_block, phi, return; ); |
| 177 | 177 |
| 178 // Only replace safepoint gotos if state_before information is available (if is a safepoint) | |
| 179 bool is_safepoint = if_->is_safepoint(); | |
| 180 if (!is_safepoint && (t_goto->is_safepoint() || f_goto->is_safepoint())) { | |
| 181 return; | |
| 182 } | |
| 183 | |
| 178 // 2) substitute conditional expression | 184 // 2) substitute conditional expression |
| 179 // with an IfOp followed by a Goto | 185 // with an IfOp followed by a Goto |
| 180 // cut if_ away and get node before | 186 // cut if_ away and get node before |
| 181 Instruction* cur_end = if_->prev(); | 187 Instruction* cur_end = if_->prev(); |
| 182 | 188 |
| 201 cur_end = cur_end->set_next(result); | 207 cur_end = cur_end->set_next(result); |
| 202 } | 208 } |
| 203 | 209 |
| 204 // append Goto to successor | 210 // append Goto to successor |
| 205 ValueStack* state_before = if_->state_before(); | 211 ValueStack* state_before = if_->state_before(); |
| 206 Goto* goto_ = new Goto(sux, state_before, if_->is_safepoint() || t_goto->is_safepoint() || f_goto->is_safepoint()); | 212 Goto* goto_ = new Goto(sux, state_before, is_safepoint); |
| 207 | 213 |
| 208 // prepare state for Goto | 214 // prepare state for Goto |
| 209 ValueStack* goto_state = if_state; | 215 ValueStack* goto_state = if_state; |
| 210 goto_state = goto_state->copy(ValueStack::StateAfter, goto_state->bci()); | 216 goto_state = goto_state->copy(ValueStack::StateAfter, goto_state->bci()); |
| 211 goto_state->push(result->type(), result); | 217 goto_state->push(result->type(), result); |
