b55f7512a7
Extract Flang's runtime library to use the LLVM_ENABLE_RUNTIME mechanism. It will only become active when `LLVM_ENABLE_RUNTIMES=flang-rt` is used, which also changes the `FLANG_INCLUDE_RUNTIME` to `OFF` so the old runtime build rules do not conflict. This also means that unless `LLVM_ENABLE_RUNTIMES=flang-rt` is passed, nothing changes with the current build process. Motivation: * Consistency with LLVM's other runtime libraries (compiler-rt, libc, libcxx, openmp offload, ...) * Allows compiling the runtime for multiple targets at once using the LLVM_RUNTIME_TARGETS configuration options * Installs the runtime into the compiler's per-target resource directory so it can be automatically found even when cross-compiling Also see RFC discussion at https://discourse.llvm.org/t/rfc-use-llvm-enable-runtimes-for-flangs-runtime/80826
63 lines
2.0 KiB
Markdown
63 lines
2.0 KiB
Markdown
# Flang |version| (In-Progress) Release Notes
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> **warning**
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>
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> These are in-progress notes for the upcoming LLVM |version| release.
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> Release notes for previous releases can be found on [the Download
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> Page](https://releases.llvm.org/download.html).
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## Introduction
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This document contains the release notes for the Flang Fortran frontend,
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part of the LLVM Compiler Infrastructure, release |version|. Here we
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describe the status of Flang in some detail, including major
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improvements from the previous release and new feature work. For the
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general LLVM release notes, see [the LLVM
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documentation](https://llvm.org/docs/ReleaseNotes.html). All LLVM
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releases may be downloaded from the [LLVM releases web
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site](https://llvm.org/releases/).
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Note that if you are reading this file from a Git checkout, this
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document applies to the *next* release, not the current one. To see the
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release notes for a specific release, please see the [releases
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page](https://llvm.org/releases/).
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## Major New Features
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## Bug Fixes
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## Non-comprehensive list of changes in this release
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## New Compiler Flags
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## Windows Support
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## Fortran Language Changes in Flang
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## Build System Changes
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* The FortranRuntime library has been renamed to `flang_rt.runtime`.
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* The FortranFloat128Math library has been renamed to `flang_rt.quadmath`.
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* The CufRuntime_cuda_${version} library has been renamed to
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`flang_rt.cuda_${version}`.
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* The Fortran Runtime library has been move to a new top-level directory
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named "flang-rt". It now supports the LLVM_ENABLE_RUNTIMES mechanism to
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build Flang-RT for multiple target triples. libflang_rt.runtime.{a|so} will
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now be emitted into Clang's per-target resource directory
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(next to libclang_rt.*.*) where it is also found by Flang's driver.
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## New Issues Found
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## Additional Information
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Flang's documentation is located in the `flang/docs/` directory in the
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LLVM monorepo.
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If you have any questions or comments about Flang, please feel free to
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contact us on the [Discourse
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forums](https://discourse.llvm.org/c/subprojects/flang/33).
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