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

[Aart Bik]

================
@@ -154,12 +154,27 @@ 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);
+  // http://www.graphics.stanford.edu/~seander/bithacks.html#DetermineIfPowerOf2
----------------
aartbik wrote:

remove this reference

anyone coding chess engines knows this trick ;-)

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