Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/sparc/vm/sharedRuntime_sparc.cpp
src/cpu/sparc/vm/sharedRuntime_sparc.cpp
- changeset 9669
- 32bc598624bd
- parent 8997
- f8a45a60bc6b
- child 9703
- 2fdf635bcf28
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| 9668:acb9351e3a29 | 9669:32bc598624bd |
|---|---|
| 2704 | 2704 |
| 2705 // Clear "last Java frame" SP and PC. | 2705 // Clear "last Java frame" SP and PC. |
| 2706 __ verify_thread(); // G2_thread must be correct | 2706 __ verify_thread(); // G2_thread must be correct |
| 2707 __ reset_last_Java_frame(); | 2707 __ reset_last_Java_frame(); |
| 2708 | 2708 |
| 2709 // Unpack oop result | 2709 // Unbox oop result, e.g. JNIHandles::resolve value in I0. |
| 2710 if (ret_type == T_OBJECT || ret_type == T_ARRAY) { | 2710 if (ret_type == T_OBJECT || ret_type == T_ARRAY) { |
| 2711 Label L; | 2711 Label done, not_weak; |
| 2712 __ addcc(G0, I0, G0); | 2712 __ br_null(I0, false, Assembler::pn, done); // Use NULL as-is. |
| 2713 __ brx(Assembler::notZero, true, Assembler::pt, L); | 2713 __ delayed()->andcc(I0, JNIHandles::weak_tag_mask, G0); // Test for jweak |
| 2714 __ delayed()->ld_ptr(I0, 0, I0); | 2714 __ brx(Assembler::zero, true, Assembler::pt, not_weak); |
| 2715 __ mov(G0, I0); | 2715 __ delayed()->ld_ptr(I0, 0, I0); // Maybe resolve (untagged) jobject. |
| 2716 __ bind(L); | 2716 // Resolve jweak. |
| 2717 __ verify_oop(I0); | 2717 __ ld_ptr(I0, -JNIHandles::weak_tag_value, I0); |
| 2718 #if INCLUDE_ALL_GCS | |
| 2719 if (UseG1GC) { | |
| 2720 // Copy to O0 because macro doesn't allow pre_val in input reg. | |
| 2721 __ mov(I0, O0); | |
| 2722 __ g1_write_barrier_pre(noreg /* obj */, | |
| 2723 noreg /* index */, | |
| 2724 0 /* offset */, | |
| 2725 O0 /* pre_val */, | |
| 2726 G3_scratch /* tmp */, | |
| 2727 true /* preserve_o_regs */); | |
| 2728 } | |
| 2729 #endif // INCLUDE_ALL_GCS | |
| 2730 __ bind(not_weak); | |
| 2731 __ verify_oop(I0); | |
| 2732 __ bind(done); | |
| 2718 } | 2733 } |
| 2719 | 2734 |
| 2720 if (!is_critical_native) { | 2735 if (!is_critical_native) { |
| 2721 // reset handle block | 2736 // reset handle block |
| 2722 __ ld_ptr(G2_thread, in_bytes(JavaThread::active_handles_offset()), L5); | 2737 __ ld_ptr(G2_thread, in_bytes(JavaThread::active_handles_offset()), L5); |
