[llvm] [mlir] [OMPIRBuilder] - Make offloading input data persist for deferred target tasks (PR #133499)

[Sergio Afonso via llvm-commits]

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@@ -7291,15 +7400,56 @@ OpenMPIRBuilder::InsertPointOrErrorTy OpenMPIRBuilder::emitTargetTask(
   emitBlock(OI.ExitBB, Builder.GetInsertBlock()->getParent(),
             /*IsFinished=*/true);
 
-  OI.PostOutlineCB = [this, ToBeDeleted, Dependencies, HasNoWait,
-                      DeviceID](Function &OutlinedFn) mutable {
+  SmallVector<Value *, 2> OffloadingArraysToPrivatize;
+  if (DeviceID && HasNoWait) {
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skatrak wrote:

Nit: I think it would be good to hoist the `bool NeedsTargetTask = HasNoWait && DeviceID` statement from the callback below and reuse it in both places, to avoid a change in that condition from getting both places out of sync.

https://github.com/llvm/llvm-project/pull/133499