[Mlir-commits] [mlir] [mlir][sparse] Expand LevelType to 64 bits and implement parsing n out of m (PR #79935)

[Aart Bik]

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@@ -26,20 +26,20 @@ MLIR_DECLARE_CAPI_DIALECT_REGISTRATION(SparseTensor, sparse_tensor);
 /// If updating, keep them in sync and update the static_assert in the impl
 /// file.
 enum MlirSparseTensorLevelType {
-  MLIR_SPARSE_TENSOR_LEVEL_DENSE = 4,                   // 0b00001_00
-  MLIR_SPARSE_TENSOR_LEVEL_COMPRESSED = 8,              // 0b00010_00
-  MLIR_SPARSE_TENSOR_LEVEL_COMPRESSED_NU = 9,           // 0b00010_01
-  MLIR_SPARSE_TENSOR_LEVEL_COMPRESSED_NO = 10,          // 0b00010_10
-  MLIR_SPARSE_TENSOR_LEVEL_COMPRESSED_NU_NO = 11,       // 0b00010_11
-  MLIR_SPARSE_TENSOR_LEVEL_SINGLETON = 16,              // 0b00100_00
-  MLIR_SPARSE_TENSOR_LEVEL_SINGLETON_NU = 17,           // 0b00100_01
-  MLIR_SPARSE_TENSOR_LEVEL_SINGLETON_NO = 18,           // 0b00100_10
-  MLIR_SPARSE_TENSOR_LEVEL_SINGLETON_NU_NO = 19,        // 0b00100_11
-  MLIR_SPARSE_TENSOR_LEVEL_LOOSE_COMPRESSED = 32,       // 0b01000_00
-  MLIR_SPARSE_TENSOR_LEVEL_LOOSE_COMPRESSED_NU = 33,    // 0b01000_01
-  MLIR_SPARSE_TENSOR_LEVEL_LOOSE_COMPRESSED_NO = 34,    // 0b01000_10
-  MLIR_SPARSE_TENSOR_LEVEL_LOOSE_COMPRESSED_NU_NO = 35, // 0b01000_11
-  MLIR_SPARSE_TENSOR_LEVEL_TWO_OUT_OF_FOUR = 64,        // 0b10000_00
+  MLIR_SPARSE_TENSOR_LEVEL_DENSE = 65536,                   // 0x00_00_0001_0000
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aartbik wrote:

here and below, can we start using hex directly for this kind of bit fiddling rather than having the decimal number and the hex documentation?

https://github.com/llvm/llvm-project/pull/79935