[llvm] [SelectOpt] Add handling for not conditions. (PR #92517)

[Sjoerd Meijer via llvm-commits]

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@@ -765,6 +792,13 @@ void SelectOptimizeImpl::collectSelectGroups(BasicBlock &BB,
           ++BBIt;
           continue;
         }
+
+        // Skip not(select, if the not is part of the same select group
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sjoerdmeijer wrote:

Nit: missing closing bracket?

https://github.com/llvm/llvm-project/pull/92517