25 bool isIdempotentRMW(AtomicRMWInst& RMWI) {  in isIdempotentRMW()
28     case AtomicRMWInst::FAdd: // -0.0  in isIdempotentRMW()
30     case AtomicRMWInst::FSub: // +0.0  in isIdempotentRMW()
41     case AtomicRMWInst::Add:  in isIdempotentRMW()
42     case AtomicRMWInst::Sub:  in isIdempotentRMW()
43     case AtomicRMWInst::Or:  in isIdempotentRMW()
44     case AtomicRMWInst::Xor:  in isIdempotentRMW()
46     case AtomicRMWInst::And:  in isIdempotentRMW()
48     case AtomicRMWInst::Min:  in isIdempotentRMW()
50     case AtomicRMWInst::Max:  in isIdempotentRMW()
52     case AtomicRMWInst::UMin:  in isIdempotentRMW()
54     case AtomicRMWInst::UMax:  in isIdempotentRMW()
63 bool isSaturating(AtomicRMWInst& RMWI) {  in isSaturating()
66     case AtomicRMWInst::FAdd:  in isSaturating()
67     case AtomicRMWInst::FSub:  in isSaturating()
80   case AtomicRMWInst::Xchg:  in isSaturating()
82   case AtomicRMWInst::Or:  in isSaturating()
84   case AtomicRMWInst::And:  in isSaturating()
86   case AtomicRMWInst::Min:  in isSaturating()
88   case AtomicRMWInst::Max:  in isSaturating()
90   case AtomicRMWInst::UMin:  in isSaturating()
92   case AtomicRMWInst::UMax:  in isSaturating()
98 Instruction *InstCombinerImpl::visitAtomicRMWInst(AtomicRMWInst &RMWI) {  in visitAtomicRMWInst()
109       RMWI.getOperation() != AtomicRMWInst::Xchg) {  in visitAtomicRMWInst()
110     RMWI.setOperation(AtomicRMWInst::Xchg);  in visitAtomicRMWInst()
121   if (RMWI.getOperation() == AtomicRMWInst::Xchg &&  in visitAtomicRMWInst()
141       RMWI.getOperation() != AtomicRMWInst::Or) {  in visitAtomicRMWInst()
142     RMWI.setOperation(AtomicRMWInst::Or);  in visitAtomicRMWInst()
145              RMWI.getOperation() != AtomicRMWInst::FAdd) {  in visitAtomicRMWInst()
146     RMWI.setOperation(AtomicRMWInst::FAdd);  in visitAtomicRMWInst()