Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/mips/vm/macroAssembler_mips.cpp
src/cpu/mips/vm/macroAssembler_mips.cpp
- changeset 9705
- 0b27fc8adf1b
- parent 9644
- 3089aa0aa0ee
- child 9808
- a9451177555c
equal
deleted
inserted
replaced
| 9704:02fc94107aa2 | 9705:0b27fc8adf1b |
|---|---|
| 4239 load_for_type_by_register(dst_reg, disp_is_simm16 ? base_reg : tmp_reg, disp_is_simm16 ? disp : 0, type); | 4239 load_for_type_by_register(dst_reg, disp_is_simm16 ? base_reg : tmp_reg, disp_is_simm16 ? disp : 0, type); |
| 4240 } | 4240 } |
| 4241 | 4241 |
| 4242 return code_offset; | 4242 return code_offset; |
| 4243 } | 4243 } |
| 4244 | |
| 4245 void MacroAssembler::clear_jweak_tag(Register possibly_jweak) { | |
| 4246 const int32_t inverted_jweak_mask = ~static_cast<int32_t>(JNIHandles::weak_tag_mask); | |
| 4247 STATIC_ASSERT(inverted_jweak_mask == -2); // otherwise check this code | |
| 4248 // The inverted mask is sign-extended | |
| 4249 move(AT, inverted_jweak_mask); | |
| 4250 andr(possibly_jweak, AT, possibly_jweak); | |
| 4251 } | |
| 4252 | |
| 4253 void MacroAssembler::resolve_jobject(Register value, | |
| 4254 Register thread, | |
| 4255 Register tmp) { | |
| 4256 assert_different_registers(value, thread, tmp); | |
| 4257 Label done, not_weak; | |
| 4258 beq(value, R0, done); // Use NULL as-is. | |
| 4259 delayed()->nop(); | |
| 4260 move(AT, JNIHandles::weak_tag_mask); // Test for jweak tag. | |
| 4261 andr(AT, value, AT); | |
| 4262 beq(AT, R0, not_weak); | |
| 4263 delayed()->nop(); | |
| 4264 // Resolve jweak. | |
| 4265 ld(value, value, -JNIHandles::weak_tag_value); | |
| 4266 verify_oop(value); | |
| 4267 #if INCLUDE_ALL_GCS | |
| 4268 if (UseG1GC) { | |
| 4269 g1_write_barrier_pre(noreg /* obj */, | |
| 4270 value /* pre_val */, | |
| 4271 thread /* thread */, | |
| 4272 tmp /* tmp */, | |
| 4273 true /* tosca_live */, | |
| 4274 true /* expand_call */); | |
| 4275 } | |
| 4276 #endif // INCLUDE_ALL_GCS | |
| 4277 b(done); | |
| 4278 delayed()->nop(); | |
| 4279 bind(not_weak); | |
| 4280 // Resolve (untagged) jobject. | |
| 4281 ld(value, value, 0); | |
| 4282 verify_oop(value); | |
| 4283 bind(done); | |
| 4284 } |
