tree cd71d28f1eed6d493dbd2c321e4fa3a972f7dc43
parent 42ee758bec885deaad08162cc8e97a87d2aba100
author Sergio Afonso <safonsof@amd.com> 1747308486 +0100
committer GitHub <noreply@github.com> 1747308486 +0100
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[Flang][MLIR][OpenMP] Improve use_device_* handling (#137198)

This patch updates MLIR op verifiers for operations taking arguments
that must always be defined by an `omp.map.info` operation to check this
requirement.

It also modifies Flang lowering for `use_device_{addr, ptr}`, as well as
the custom MLIR printer and parser for these clauses, to support
initializing it to `OMP_MAP_RETURN_PARAM` and represent this in the MLIR
representation as `return_param`. This internal mapping flag is what
eventually is used for variables passed via these clauses into the
target region when translating to LLVM IR, so making it explicit in
Flang and MLIR removes an inconsistency in the current representation.