[llvm] [HashRecognize] Make it a non-PM analysis (PR #144742)

[Nikita Popov via llvm-commits]

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@@ -66,13 +66,18 @@ struct PolynomialInfo {
   // Set to true in the case of big-endian.
   bool ByteOrderSwapped;
 
+  // A function_ref to generate the Sarwate lookup-table, which can be used to
+  // optimize CRC in the absence of target-specific instructions.
+  function_ref<CRCTable(const APInt &, bool)> GenSarwateTable;
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nikic wrote:

Why does this need to be a function_ref rather than a plain member function?

https://github.com/llvm/llvm-project/pull/144742