Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
- changeset 4106
- 7eca5de9e0b6
- parent 4051
- 8a02ca5e5576
- child 4142
- d8ce2825b193
- child 4159
- 8e47bac5643a
equal
deleted
inserted
replaced
| 4105:8ae8f9dd7099 | 4106:7eca5de9e0b6 |
|---|---|
| 3792 | 3792 |
| 3793 void LIR_Assembler::peephole(LIR_List*) { | 3793 void LIR_Assembler::peephole(LIR_List*) { |
| 3794 // do nothing for now | 3794 // do nothing for now |
| 3795 } | 3795 } |
| 3796 | 3796 |
| 3797 void LIR_Assembler::atomic_op(LIR_Code code, LIR_Opr src, LIR_Opr data, LIR_Opr dest, LIR_Opr tmp) { | |
| 3798 assert(data == dest, "xchg/xadd uses only 2 operands"); | |
| 3799 | |
| 3800 if (data->type() == T_INT) { | |
| 3801 if (code == lir_xadd) { | |
| 3802 if (os::is_MP()) { | |
| 3803 __ lock(); | |
| 3804 } | |
| 3805 __ xaddl(as_Address(src->as_address_ptr()), data->as_register()); | |
| 3806 } else { | |
| 3807 __ xchgl(data->as_register(), as_Address(src->as_address_ptr())); | |
| 3808 } | |
| 3809 } else if (data->is_oop()) { | |
| 3810 assert (code == lir_xchg, "xadd for oops"); | |
| 3811 Register obj = data->as_register(); | |
| 3812 #ifdef _LP64 | |
| 3813 if (UseCompressedOops) { | |
| 3814 __ encode_heap_oop(obj); | |
| 3815 __ xchgl(obj, as_Address(src->as_address_ptr())); | |
| 3816 __ decode_heap_oop(obj); | |
| 3817 } else { | |
| 3818 __ xchgptr(obj, as_Address(src->as_address_ptr())); | |
| 3819 } | |
| 3820 #else | |
| 3821 __ xchgl(obj, as_Address(src->as_address_ptr())); | |
| 3822 #endif | |
| 3823 } else if (data->type() == T_LONG) { | |
| 3824 #ifdef _LP64 | |
| 3825 assert(data->as_register_lo() == data->as_register_hi(), "should be a single register"); | |
| 3826 if (code == lir_xadd) { | |
| 3827 if (os::is_MP()) { | |
| 3828 __ lock(); | |
| 3829 } | |
| 3830 __ xaddq(as_Address(src->as_address_ptr()), data->as_register_lo()); | |
| 3831 } else { | |
| 3832 __ xchgq(data->as_register_lo(), as_Address(src->as_address_ptr())); | |
| 3833 } | |
| 3834 #else | |
| 3835 ShouldNotReachHere(); | |
| 3836 #endif | |
| 3837 } else { | |
| 3838 ShouldNotReachHere(); | |
| 3839 } | |
| 3840 } | |
| 3797 | 3841 |
| 3798 #undef __ | 3842 #undef __ |
