This adds support for the OpenMP interop construct, which enables interoperability with foreign runtime environments (e.g., CUDA, HIP). The init, use, and destroy action clauses are lowered from the Fortran parse tree to MLIR interop ops and translated to the appropriate runtime calls. The omp_lib module is extended with interop query API interfaces, property constants, and return code constants. A semantics fix relaxes the depend/targetsync constraint for use/destroy directives where the interop type was established at a separate init site. Unsupported depend clauses and prefer_type selector-list forms emit explicit diagnostics instead of being silently dropped. Assisted-by: Claude Opus 4.6
The LLVM Compiler Infrastructure
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