[llvm] [AArch64] Test all needles when vectorising find_first_of loops. (PR #179298)

[Ricardo Jesus via llvm-commits]

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@@ -1253,10 +1261,16 @@ Value *LoopIdiomVectorize::expandFindFirstByte(
       Builder.CreatePtrToInt(SearchStart, I64Ty, "search_start_int");
   Value *ISearchEnd =
       Builder.CreatePtrToInt(SearchEnd, I64Ty, "search_end_int");
+  Value *SearchIdxInit = Constant::getNullValue(I64Ty);
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rj-jesus wrote:

Thanks - I'll move the wrapping changes to a new PR and revert them here. :)

https://github.com/llvm/llvm-project/pull/179298