| commit | f27948ac716f899dad65c1c3c292cbc875a321a7 | [log] [tgz] |
|---|---|---|
| author | Matthias Springer <me@m-sp.org> | Wed Feb 28 14:05:06 2024 +0100 |
| committer | Copybara-Service <copybara-worker@google.com> | Wed Feb 28 05:11:28 2024 -0800 |
| tree | 3057b735167566d2ddc87f44cbab91c0c1b598c2 | |
| parent | 28d913f4aa8a006cf6edfb45dc5345ad876072fb [diff] |
[flang] Fix flang build after #83132 (#83253) This fix is a temporary workaround. `LowerHLFIRIntrinsics.cpp` should be using the greedy pattern rewriter or a manual IR traversal. All patterns in this file are rewrite patterns. The test failure was caused by `replaceAllUsesWith`, which is not supported by the dialect conversion; additional asserts were added recently to prevent incorrect API usage. These trigger now. Alternatively, turning the patterns into conversion patterns and specifying a type converter may work. Failing test case: `Fortran/gfortran/regression/gfortran-regression-compile-regression__inline_matmul_14_f90.test` GitOrigin-RevId: 1f74f5f48bc9e1091602163ac925c807d70706e1
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.