[llvm] [SLP]Initial compatibility support for shl v, 1 and add v, v (PR #181168)

[Simon Pilgrim via llvm-commits]

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@@ -23155,9 +23286,13 @@ void BoUpSLP::BlockScheduling::calculateDependencies(
             }
           } else if (Visited.insert(In).second) {
             if (ScheduleData *UseSD = getScheduleData(In)) {
-              CD->incDependencies();
+              unsigned Inc = 1;
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RKSimon wrote:

Inc? Would ExtraDeps be better?

https://github.com/llvm/llvm-project/pull/181168