[llvm] [LoopIdiomRecognize] Enable clmul optimization for CRC loops (PR #203405)

[Ramkumar Ramachandra via llvm-commits]

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@@ -1577,11 +1586,168 @@ bool LoopIdiomRecognize::optimizeCRCLoop(const PolynomialInfo &Info) {
   // Sarwate table-lookup optimization. Hence, until we're able to emit
   // target-specific instructions for Hexagon, subsuming HexagonLoopIdiom,
   // disable the optimization for Hexagon.
-  Module &M = *CurLoop->getHeader()->getModule();
-  Triple TT(M.getTargetTriple());
+  Triple TT(CurLoop->getHeader()->getModule()->getTargetTriple());
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artagnon wrote:

Unnecessary unrelated change? Could revert?

https://github.com/llvm/llvm-project/pull/203405