[llvm] [AArch64] Add MATCH loops to LoopIdiomVectorizePass (PR #101976)

[Sjoerd Meijer via llvm-commits]

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@@ -79,6 +104,12 @@ static cl::opt<unsigned>
               cl::desc("The vectorization factor for byte-compare patterns."),
               cl::init(16));
 
+static cl::opt<bool>
+    DisableFindFirstByte("disable-loop-idiom-vectorize-find-first-byte",
+                         cl::Hidden, cl::init(false),
+                         cl::desc("Proceed with Loop Idiom Vectorize Pass, but "
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sjoerdmeijer wrote:

Nit: I don't think you'll need to mention that the LoopIdiomPass is running; I think it suffices to say that find-first-byte-loop rewrite is skipped.

https://github.com/llvm/llvm-project/pull/101976