[llvm] [mlir] [OpenMP][MLIR][OMPIRBuilder] Add a small optional constant alloca raise function pass to finalize, utilised in convertTarget (PR #78818)

[Akash Banerjee via llvm-commits]

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@@ -633,6 +633,30 @@ Function *OpenMPIRBuilder::getOrCreateRuntimeFunctionPtr(RuntimeFunction FnID) {
 
 void OpenMPIRBuilder::initialize() { initializeTypes(M); }
 
+static void raiseUserConstantDataAllocasToEntryBlock(IRBuilderBase &Builder,
+                                                     Function *Function) {
+  BasicBlock &EntryBlock = Function->getEntryBlock();
+  Instruction *MoveLocInst = EntryBlock.getFirstNonPHI();
+
+  // Loop over blocks looking for allocas, skip the entry block allocas here are
+  // in the appropriate place.
+  for (auto Block = std::next(Function->begin(), 1); Block != Function->end();
+       Block++) {
+    for (auto Inst = Block->getReverseIterator()->begin();
+         Inst != Block->getReverseIterator()->end();) {
+      if (auto *AllocaInst =
+              llvm::dyn_cast_if_present<llvm::AllocaInst>(Inst)) {
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TIFitis wrote:

Nit: Remove llvm::

https://github.com/llvm/llvm-project/pull/78818