[Mlir-commits] [mlir] [mlir][sparse] Introduce batch level format. (PR #83082)

[Yinying Li]

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@@ -154,12 +154,26 @@ enum class Action : uint32_t {
 enum class LevelFormat : uint64_t {
   Undef = 0x00000000,
   Dense = 0x00010000,
-  Compressed = 0x00020000,
-  Singleton = 0x00040000,
-  LooseCompressed = 0x00080000,
-  NOutOfM = 0x00100000,
+  Batch = 0x00020000,
+  Compressed = 0x00040000,
+  Singleton = 0x00080000,
+  LooseCompressed = 0x00100000,
+  NOutOfM = 0x00200000,
 };
 
+constexpr bool encPowOfTwo(LevelFormat fmt) {
+  auto enc = static_cast<std::underlying_type_t<LevelFormat>>(fmt);
+  return (enc & (enc - 1)) == 0;
+}
+
+// All LevelFormat must have only one bit set (power of two).
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yinying-lisa-li wrote:

nit: maybe LevelFormats?

https://github.com/llvm/llvm-project/pull/83082