Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/sparc/vm/assembler_sparc.cpp
src/cpu/sparc/vm/assembler_sparc.cpp
- changeset 1229
- 315a5d70b295
- parent 1162
- 6b2273dd6fa9
- child 1280
- df6caf649ff7
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| 1193:9b3a41ccc927 | 1229:315a5d70b295 |
|---|---|
| 4452 // XXX Should I predict this taken or not? Does it mattern? | 4452 // XXX Should I predict this taken or not? Does it mattern? |
| 4453 br_on_reg_cond(rc_z, /*annul*/false, Assembler::pt, tmp, filtered); | 4453 br_on_reg_cond(rc_z, /*annul*/false, Assembler::pt, tmp, filtered); |
| 4454 delayed()->nop(); | 4454 delayed()->nop(); |
| 4455 } | 4455 } |
| 4456 | 4456 |
| 4457 // Now we decide how to generate the card table write. If we're | 4457 // If the "store_addr" register is an "in" or "local" register, move it to |
| 4458 // enqueueing, we call out to a generated function. Otherwise, we do it | 4458 // a scratch reg so we can pass it as an argument. |
| 4459 // inline here. | 4459 bool use_scr = !(store_addr->is_global() || store_addr->is_out()); |
| 4460 | 4460 // Pick a scratch register different from "tmp". |
| 4461 if (G1RSBarrierUseQueue) { | 4461 Register scr = (tmp == G1_scratch ? G3_scratch : G1_scratch); |
| 4462 // If the "store_addr" register is an "in" or "local" register, move it to | 4462 // Make sure we use up the delay slot! |
| 4463 // a scratch reg so we can pass it as an argument. | 4463 if (use_scr) { |
| 4464 bool use_scr = !(store_addr->is_global() || store_addr->is_out()); | 4464 post_filter_masm->mov(store_addr, scr); |
| 4465 // Pick a scratch register different from "tmp". | |
| 4466 Register scr = (tmp == G1_scratch ? G3_scratch : G1_scratch); | |
| 4467 // Make sure we use up the delay slot! | |
| 4468 if (use_scr) { | |
| 4469 post_filter_masm->mov(store_addr, scr); | |
| 4470 } else { | |
| 4471 post_filter_masm->nop(); | |
| 4472 } | |
| 4473 generate_dirty_card_log_enqueue_if_necessary(bs->byte_map_base); | |
| 4474 save_frame(0); | |
| 4475 call(dirty_card_log_enqueue); | |
| 4476 if (use_scr) { | |
| 4477 delayed()->mov(scr, O0); | |
| 4478 } else { | |
| 4479 delayed()->mov(store_addr->after_save(), O0); | |
| 4480 } | |
| 4481 restore(); | |
| 4482 | |
| 4483 } else { | 4465 } else { |
| 4484 | 4466 post_filter_masm->nop(); |
| 4485 #ifdef _LP64 | 4467 } |
| 4486 post_filter_masm->srlx(store_addr, CardTableModRefBS::card_shift, store_addr); | 4468 generate_dirty_card_log_enqueue_if_necessary(bs->byte_map_base); |
| 4487 #else | 4469 save_frame(0); |
| 4488 post_filter_masm->srl(store_addr, CardTableModRefBS::card_shift, store_addr); | 4470 call(dirty_card_log_enqueue); |
| 4489 #endif | 4471 if (use_scr) { |
| 4490 assert(tmp != store_addr, "need separate temp reg"); | 4472 delayed()->mov(scr, O0); |
| 4491 set(bs->byte_map_base, tmp); | 4473 } else { |
| 4492 stb(G0, tmp, store_addr); | 4474 delayed()->mov(store_addr->after_save(), O0); |
| 4493 } | 4475 } |
| 4476 restore(); | |
| 4494 | 4477 |
| 4495 bind(filtered); | 4478 bind(filtered); |
| 4496 | 4479 |
| 4497 } | 4480 } |
| 4498 | 4481 |
