[llvm] [NFC][AArch64] Refactor AArch64LoopIdiomTransform in preparation for more idioms (PR #78471)

[Sjoerd Meijer via llvm-commits]

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@@ -202,32 +227,135 @@ bool AArch64LoopIdiomTransform::run(Loop *L) {
                     << CurLoop->getHeader()->getParent()->getName()
                     << "] Loop %" << CurLoop->getHeader()->getName() << "\n");
 
-  return recognizeByteCompare();
+  MemCompareIdiom BCI(TTI, DT, LI, L);
+  if (BCI.recognize()) {
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sjoerdmeijer wrote:

I find `recognizeByteCompare` more descriptive. Or do you plan to support the other idioms all in this function `recognize`?

https://github.com/llvm/llvm-project/pull/78471