| commit | b51703194d54f8c59b77dff8ab714f637e91e0b0 | [log] [tgz] |
|---|---|---|
| author | Valentin Clement (バレンタイン クレメン) <clementval@gmail.com> | Fri Apr 05 09:11:37 2024 -0700 |
| committer | Copybara-Service <copybara-worker@google.com> | Fri Apr 05 09:13:17 2024 -0700 |
| tree | 1c6d9d5ad5474cc6521b1044ea23e232155c567b | |
| parent | e769b2ef4a540d4bdc2818e62115cb9e5d24f6f6 [diff] |
[flang][cuda] Lower device to host and device to device transfer (#87387) Add more support for CUDA data transfer in assignment. This patch adds device to device and device to host support. If device symbols are present on the rhs, some implicit data transfer are initiated. A temporary is created and the data are transferred to the host. The expression is evaluated on the host and the assignment is done. GitOrigin-RevId: 953aa102a90099ae655eaa4645dd8d15c95ea86a
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.
To understand the compilers handling of intrinsics, see the discussion of intrinsics.
To understand how a flang program communicates with libraries at runtime, see the discussion of runtime descriptors.
If you're interested in contributing to the compiler, read the style guide and also review how flang uses modern C++ features.
If you are interested in writing new documentation, follow LLVM's Markdown style guide.
Consult the Getting Started with Flang for information on building and running flang.