================
@@ -1509,6 +1533,12 @@ void
SITargetLowering::getTgtMemIntrinsic(SmallVectorImpl<IntrinsicInfo> &Infos,
Info.memVT = getValueType(MF.getDataLayout(), DataTy);
Info.flags = Flags | MachineMemOperand::MOStore;
+ if (std::optional<SyncScope::ID> SSID = parseBufferAtomicScopeArg(CI)) {
+ // Pretend to be atomic so SIMemoryLegalizer::expandStore sets cache
+ // bypass bits, since atomic and plain buffer stores look identical.
+ Info.order = AtomicOrdering::Monotonic;
----------------
krzysz00 wrote:
I'm not sure Monotonic is correct here?
https://github.com/llvm/llvm-project/pull/213585
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