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...goodness can happen (we'll also add the TableGen patterns to properly select movnt). In our tree we simply added another flag to the MemSDNode constructor and embedded it in SubclassData: MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, MVT MemoryVT, const Value *srcValue, int SVOff, unsigned alignment, bool isvolatile, bool NonTemporal); This is ugly for a variety of reasons and also doesn't scale as we want to add more of this kind of information. So what if we replace Volatile/NonTemporal with a single bitvector? There's not a lot of room in SubclassDa...

...lso add the TableGen patterns to properly select > movnt). > > In our tree we simply added another flag to the MemSDNode constructor > and embedded it in SubclassData: > > MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, MVT MemoryVT, > const Value *srcValue, int SVOff, > unsigned alignment, bool isvolatile, bool NonTemporal); > > This is ugly for a variety of reasons and also doesn't scale as we > want to add more of this kind of information. > > So what if we replace Volatile/NonTemporal with a single bitvector? > There's...

...lso add the TableGen patterns to properly select > movnt). > > In our tree we simply added another flag to the MemSDNode constructor > and embedded it in SubclassData: > > MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, MVT MemoryVT, > const Value *srcValue, int SVOff, > unsigned alignment, bool isvolatile, bool NonTemporal); > > This is ugly for a variety of reasons and also doesn't scale as we > want to add more of this kind of information. > > So what if we replace Volatile/NonTemporal with a single bitvector? > There's...