[llvm] [VPlan] Introduce explicit broadcasts for live-ins. (PR #124644)

[via llvm-commits]

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@@ -2154,3 +2154,34 @@ void VPlanTransforms::handleUncountableEarlyExit(
   Builder.createNaryOp(VPInstruction::BranchOnCond, AnyExitTaken);
   LatchExitingBranch->eraseFromParent();
 }
+
+void VPlanTransforms::materializeBroadcasts(VPlan &Plan) {
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ayalz wrote:

```suggestion
void VPlanTransforms::materializeLiveInBroadcasts(VPlan &Plan) {
```


https://github.com/llvm/llvm-project/pull/124644