[llvm] [OpenMP][OMPIRBuilder] Add support to omp target parallel (PR #67000)

[Johannes Doerfert via llvm-commits]

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@@ -1090,6 +1097,174 @@ void OpenMPIRBuilder::emitCancelationCheckImpl(Value *CancelFlag,
   Builder.SetInsertPoint(NonCancellationBlock, NonCancellationBlock->begin());
 }
 
+static void targetParallelCallback(OpenMPIRBuilder *OMPIRBuilder,
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jdoerfert wrote:

Add some brief documentation.
Use references when possible. 

https://github.com/llvm/llvm-project/pull/67000