Files

T

vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)

verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).

2026-08-01 05:13:02 +03:00

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Flang |version| (In-Progress) Release Notes

Warning

These are in-progress notes for the upcoming LLVM |version| release. Release notes for previous releases can be found on the Download Page.

Introduction

This document contains the release notes for the Flang Fortran frontend, part of the LLVM Compiler Infrastructure, release |version|. Here we describe the status of Flang in some detail, including major improvements from the previous release and new feature work. For the general LLVM release notes, see the LLVM documentation. All LLVM releases may be downloaded from the LLVM releases web site.

Note that if you are reading this file from a Git checkout, this document applies to the next release, not the current one. To see the release notes for a specific release, please see the releases page.

Major New Features

Initial support for VOLATILE variables and procedure interface arguments has been added.
OpenMP support is stable and no longer considered experimental. All of OpenMP 3.1 is supported, along with much of OpenMP 4.0 and some parts of later standards.

Bug Fixes

Non-comprehensive list of changes in this release

New Compiler Flags

-floop-interchange is now recognized by flang.
-floop-interchange is enabled by default at -O2 and above.
-fveclib=libmvec is supported for AArch64 (same as Flang/x86 and Clang/AArch64) (requires GLIBC 2.40 or newer)

Windows Support

Fortran Language Changes in Flang

Build System Changes

The FortranRuntime library has been renamed to flang_rt.runtime.
The FortranFloat128Math library has been renamed to flang_rt.quadmath.
The CufRuntime_cuda_${version} library has been renamed to flang_rt.cuda_${version}.
The Fortran Runtime library has been move to a new top-level directory named "flang-rt". It now supports the LLVM_ENABLE_RUNTIMES mechanism to build Flang-RT for multiple target triples. libflang_rt.runtime.{a|so} will now be emitted into Clang's per-target resource directory (next to libclang_rt..) where it is also found by Flang's driver.
Flang on AArch64 now always depends on compiler-rt to provide the __trampoline_setup function. This dependency will be automatically added in in-tree builds with the AArch64 target, but compiler-rt will need to be manually added to LLVM builds when building flang out-of-tree.

New Issues Found

Additional Information

Flang's documentation is located in the flang/docs/ directory in the LLVM monorepo.

If you have any questions or comments about Flang, please feel free to contact us on the Discourse forums.

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