[llvm] [VPlan] Explicitly unroll replicate-regions without live-outs by VF. (PR #170212)

[via llvm-commits]

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@@ -572,9 +572,7 @@ static void addReplicateRegions(VPlan &Plan) {
   }
 }
 
-/// Remove redundant VPBasicBlocks by merging them into their predecessor if
-/// the predecessor has a single successor.
-static bool mergeBlocksIntoPredecessors(VPlan &Plan) {
+bool VPlanTransforms::mergeBlocksIntoPredecessors(VPlan &Plan) {
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ayalz wrote:

Turned from static to a method of VPlanTransforms, could be done indepdently?

https://github.com/llvm/llvm-project/pull/170212