-omp-offload-privatization-prepare ¶

Prepare OpenMP maps for privatization for deferred target tasks

When generating LLVMIR for privatized variables in an OpenMP offloading directive (eg. omp::TargetOp) that creates a deferred target task (when the nowait clause is used), we need to copy the privatized variable out of the stack of the generating task and into the heap so that the deferred target task can still access it. However, if such a privatized variable is also mapped, typically the case for allocatables, then the corresponding omp::MapInfoOp needs to be fixed up to map the new heap-allocated variable and not the original variable.