[llvm] [mlir] [MLIR][NVVM][NVPTX] Support for new mma/mma.sp variants from PTX 9.1 (PR #182325)

[Pradeep Kumar via llvm-commits]

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@@ -184,6 +184,14 @@ class NVPTXSubtarget : public NVPTXGenSubtargetInfo {
     return hasPTXWithAccelSMs(87, {120, 121});
   }
 
+  bool hasMMABlockScaleNF4X4E8() const {
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schwarzschild-radius wrote:

@kvederni What is the rational behind the naming here (NF4X4E8)?

https://github.com/llvm/llvm-project/pull/182325