[Flang-dev] RFC: lowering Fortran AST to an IR

Eric Schweitz (PGI) eric.schweitz at pgroup.com
Wed Oct 24 15:42:05 EDT 2018


The f18 project has a high-level design document out for several months on an intermediate representation for lowering and optimizing Fortran ASTs. The document can be found here: https://bit.ly/2q9IRaQ

Some context for this document can be found in the github documentation at: https://github.com/flang-compiler/f18/tree/master/documentation
Of particular note:
* Parsing: https://bit.ly/2ERlXyO
* Semantics: https://bit.ly/2CAybcB
* Label Resolution: https://bit.ly/2PlXQfP

The purpose of the f18 CFG will be to lower Fortran surface syntax into an semantically clean operational structure amenable to high-level transformations and further lowering into LLVM-IR.

As the project continues to move forward, we would like to know of if there are any relevant thoughts, concerns, or questions.

--
Eric


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