Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/sparc/vm/sparc.ad
src/cpu/sparc/vm/sparc.ad
- changeset 5283
- 46c544b8fbfc
- parent 5001
- e10e43e58e92
- child 5528
- 740e263c80c6
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inserted
replaced
| 5282:ea60d1de6735 | 5283:46c544b8fbfc |
|---|---|
| 2776 MacroAssembler _masm(&cbuf); | 2776 MacroAssembler _masm(&cbuf); |
| 2777 Register Rmem = reg_to_register_object($mem$$reg); | 2777 Register Rmem = reg_to_register_object($mem$$reg); |
| 2778 Register Rold = reg_to_register_object($old$$reg); | 2778 Register Rold = reg_to_register_object($old$$reg); |
| 2779 Register Rnew = reg_to_register_object($new$$reg); | 2779 Register Rnew = reg_to_register_object($new$$reg); |
| 2780 | 2780 |
| 2781 // casx_under_lock picks 1 of 3 encodings: | 2781 __ cas_ptr(Rmem, Rold, Rnew); // Swap(*Rmem,Rnew) if *Rmem == Rold |
| 2782 // For 32-bit pointers you get a 32-bit CAS | |
| 2783 // For 64-bit pointers you get a 64-bit CASX | |
| 2784 __ casn(Rmem, Rold, Rnew); // Swap(*Rmem,Rnew) if *Rmem == Rold | |
| 2785 __ cmp( Rold, Rnew ); | 2782 __ cmp( Rold, Rnew ); |
| 2786 %} | 2783 %} |
| 2787 | 2784 |
| 2788 enc_class enc_casx( iRegP mem, iRegL old, iRegL new) %{ | 2785 enc_class enc_casx( iRegP mem, iRegL old, iRegL new) %{ |
| 2789 Register Rmem = reg_to_register_object($mem$$reg); | 2786 Register Rmem = reg_to_register_object($mem$$reg); |
| 3065 #ifdef ASSERT | 3062 #ifdef ASSERT |
| 3066 __ save_frame(0); | 3063 __ save_frame(0); |
| 3067 AddressLiteral last_rethrow_addrlit(&last_rethrow); | 3064 AddressLiteral last_rethrow_addrlit(&last_rethrow); |
| 3068 __ sethi(last_rethrow_addrlit, L1); | 3065 __ sethi(last_rethrow_addrlit, L1); |
| 3069 Address addr(L1, last_rethrow_addrlit.low10()); | 3066 Address addr(L1, last_rethrow_addrlit.low10()); |
| 3070 __ get_pc(L2); | 3067 __ rdpc(L2); |
| 3071 __ inc(L2, 3 * BytesPerInstWord); // skip this & 2 more insns to point at jump_to | 3068 __ inc(L2, 3 * BytesPerInstWord); // skip this & 2 more insns to point at jump_to |
| 3072 __ st_ptr(L2, addr); | 3069 __ st_ptr(L2, addr); |
| 3073 __ restore(); | 3070 __ restore(); |
| 3074 #endif | 3071 #endif |
| 3075 __ JUMP(rethrow_stub, temp_reg, 0); // sethi;jmp | 3072 __ JUMP(rethrow_stub, temp_reg, 0); // sethi;jmp |
