| commit | 35ce53da355d7c8ab9f371befd9a23b054cfbb10 | [log] [tgz] |
|---|---|---|
| author | Atmn Patel <atmnp@nvidia.com> | Thu Oct 23 15:21:13 2025 -0500 |
| committer | Copybara-Service <copybara-worker@google.com> | Thu Oct 23 13:26:13 2025 -0700 |
| tree | 54ccf3c1e0503131040660a70b8dc642cb766bbe | |
| parent | cf063b88fe626ba93075490957639fbd83a95b91 [diff] |
[flang][mlir] add missing type conversion when lowering atomiccas (#164865) When lowering `atomiccas`, flang does not convert the output of the `llvm.extract_value` op to result type expected in the expression being lowered. This results in invalid MLIR being generated such as when the output of the atomiccas is being used for an equality check in a `do while` loop condition, where the `arith.cmpi` would be comparing an `i64 0` with an `i1`. This change ensures that the appropriate cast is inserted. Reviewers: @clementval @vzakhari GitOrigin-RevId: 1c30038e5af5256aeda45946ddc0b5f801749e15
Flang is a ground-up implementation of a Fortran front end written in modern C++. It started off as the f18 project (https://github.com/flang-compiler/f18) with an aim to replace the previous flang project (https://github.com/flang-compiler/flang) and address its various deficiencies. F18 was subsequently accepted into the LLVM project and rechristened as Flang.
Please note that flang is not ready yet for production usage.
Read more about flang in the docs directory. Start with the compiler overview.
To better understand Fortran as a language and the specific grammar accepted by flang, read Fortran For C Programmers and flang's specifications of the Fortran grammar and the OpenMP grammar.
Treatment of language extensions is covered in this document.
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