1.1 --- a/src/cpu/x86/vm/c1_LIRGenerator_x86.cpp Tue Jun 12 09:47:23 2012 -0700
1.2 +++ b/src/cpu/x86/vm/c1_LIRGenerator_x86.cpp Tue Jun 12 14:31:44 2012 -0700
1.3 @@ -718,35 +718,6 @@
1.4 }
1.5
1.6
1.7 -void LIRGenerator::do_AttemptUpdate(Intrinsic* x) {
1.8 - assert(x->number_of_arguments() == 3, "wrong type");
1.9 - LIRItem obj (x->argument_at(0), this); // AtomicLong object
1.10 - LIRItem cmp_value (x->argument_at(1), this); // value to compare with field
1.11 - LIRItem new_value (x->argument_at(2), this); // replace field with new_value if it matches cmp_value
1.12 -
1.13 - // compare value must be in rdx,eax (hi,lo); may be destroyed by cmpxchg8 instruction
1.14 - cmp_value.load_item_force(FrameMap::long0_opr);
1.15 -
1.16 - // new value must be in rcx,ebx (hi,lo)
1.17 - new_value.load_item_force(FrameMap::long1_opr);
1.18 -
1.19 - // object pointer register is overwritten with field address
1.20 - obj.load_item();
1.21 -
1.22 - // generate compare-and-swap; produces zero condition if swap occurs
1.23 - int value_offset = sun_misc_AtomicLongCSImpl::value_offset();
1.24 - LIR_Opr addr = new_pointer_register();
1.25 - __ leal(LIR_OprFact::address(new LIR_Address(obj.result(), value_offset, T_LONG)), addr);
1.26 - LIR_Opr t1 = LIR_OprFact::illegalOpr; // no temp needed
1.27 - LIR_Opr t2 = LIR_OprFact::illegalOpr; // no temp needed
1.28 - __ cas_long(addr, cmp_value.result(), new_value.result(), t1, t2);
1.29 -
1.30 - // generate conditional move of boolean result
1.31 - LIR_Opr result = rlock_result(x);
1.32 - __ cmove(lir_cond_equal, LIR_OprFact::intConst(1), LIR_OprFact::intConst(0), result, T_LONG);
1.33 -}
1.34 -
1.35 -
1.36 void LIRGenerator::do_CompareAndSwap(Intrinsic* x, ValueType* type) {
1.37 assert(x->number_of_arguments() == 4, "wrong type");
1.38 LIRItem obj (x->argument_at(0), this); // object
