`#pragma redefine_extname`: warn only if conflicting ID is at TU scope. (#188256)
As an example, this should keep warning:
```
static void foo();
```
because here, the identiifer `foo` won't be affected. In fact, it now
becomes (mostly) impossible to even declare anything later that would
get affected, thus the new definition is in active conflict with the
`#pragma`.
This however will not warn anymore:
```
namespace blargh {
static void foo();
}
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Serialize `#pragma redefine_extname` into precompiled headers. (#186755)
Also deserialize them back again on reading.
The implementation is based on the existing implementation of `#pragma
weak` serialization.
Fixes issue #186742.
---------
Co-authored-by: Chuanqi Xu <yedeng.yd at linux.alibaba.com>
DEVICE_IDENTIFY.9: Fix function call to detect driver in example code
Fixes: ccabc7c2e556 ("DEVICE_IDENTIFY.9: Modernize description and use cases")
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
(cherry picked from commit c78937677c973c48fd438ea06cfb51e11cc62851)
MAC/do: Comments: Rephrase one, fix a typo in another
No functional change.
MFC after: 3 days
Event: AsiaBSDCon 2026
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 954aaf3958e2ea0e9b1811090ddbb9d8b13a3e5a)
cpufreq(4): cpufreq_levels_sysctl(): Remove always false NULL test
'sc->levels_buf' is initialized with malloc(M_WAITOK), so can never be
NULL. Another sysctl handler function (cpufreq_curr_sysctl()) already
relies on that.
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 953b9164c3d93e820a53b4fdebbde7fabb7b7644)
clang: Return Triple from OffloadArchToTriple instead of a string
Also stop bothering to call normalizeOffloadTriple. This was
produced by code which should always produce normalized triples.
[DA] Stop negating Delta in the Weak Zero SIV test (#188212)
This patch removes the variable `NewDelta`, which was calculated as the
negation of `Delta`, along with its uses. `NewDelta` is now referenced
in only one place, and that code is effectively dead because more
general analysis with ConstantRange is performed at an earlier stage.
Also the test using `NewDelta` is not correct when `Delta` is a signed
minimum value, as negating it yields the same value as original. This
patch also fixes the correctness issue in such a situation.
[mlir][affine] Add ValueBounds-based simplification for delinearize(linearize) pairs (#187245)
`affine.linearize_index` pairs
(`CancelDelinearizeOfLinearizeDisjointExactTail`) only match when basis
elements are exactly equal as `OpFoldResult` values. This means they
cannot simplify cases where dynamic basis products are semantically
equal but represented by different SSA values or affine expressions.
This patch adds a new pass `affine-simplify-with-bounds` with two
rewrite patterns that use `ValueBoundsConstraintSet` to prove equality
of basis products:
- **`SimplifyDelinearizeOfLinearizeDisjointManyToOneTail`**: matches
when multiple consecutive linearize dimensions have a product equal to a
single delinearize dimension (many-to-one).
- **`SimplifyDelinearizeOfLinearizeDisjointOneToManyTail`**: matches
when a single linearize dimension equals the product of multiple
consecutive delinearize dimensions (one-to-many).
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nvme_sim: Fix name in module version metadata
MFC after: 1 week
Fixes: 1e39b5d4833e ("nvme_sim: Attach as a child of nvme")
Sponsored by: The FreeBSD Foundation
vfs: Simplify vfs_write_resume()/vn_start_write_refed()
The call to vn_start_write_refed() from vfs_write_resume() with
'mplocked' set to 'true' exactly boils down to doing an increment of
'mnt_writeopcount', albeit with lots of unnecessary verifications.
Replace it with an inline incrementation. As the original call was the
last with 'mplocked' with 'true', remove the 'mplocked' parameter from
vfs_write_resume(), simplifying its code accordingly ('mplocked' always
false).
While here, in vfs_write_resume(), initialize 'error' out of the mount
lock.
Reviewed by: kib
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D56108
When in copy mode with a large scroll offset and the window is resized
so that history shrinks, data->oy can exceed screen_hsize causing an
unsigned integer underflow in the py computation. Clamp data->oy in
window_copy_resize and window_copy_cmd_refresh_from_pane before the
subtraction. From futpib at gmail dot com in GitHub issue 4958.
[mlir][tosa] Harden folds/canonicalizations for unranked and dynamic shapes (#188188)
This MR fixes #188187 and #187974. Tighten TOSA constant folding and
identity-style folds so they do not produce invalid or type-incorrect
results when the op’s result type is unranked, rank-dynamic, or
otherwise not a static `RankedTensorType`. Several paths previously
assumed ranked/static shapes or folded through to the operand without
checking that the result type matched the value being returned.
`DenseElementsAttr::get`, `SplatElementsAttr::get` and similar builders
need a static shape; folding with `tensor<*xT>` or dynamic dims must not
fabricate dense attributes with the wrong shape.
Returning the operand from a “no-op” fold is only valid when
`operand.getType() == op.getType()`; otherwise the folder would change
the IR’s type semantics (e.g. ranked → unranked). Which in the bigger
pipeline supposed to be handled by `-tosa-infer-shapes`
Assisted-by: CLion code completion, GPT 5.3 - Codex
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vendor/ZLIB: Upgrade from 1.3.1 to 1.3.2
Version 1.3.2 (released on 2026-02-17) has these key updates from 1.3.1:
* Address findings of the 7ASecurity audit of zlib.
- Check for negative lengths in crc32_combine functions.
- Copy only the initialized window contents in inflateCopy.
- Prevent the use of insecure functions without an explicit request.
- Add compressBound_z and deflateBound_z functions for large values.
- Use atomics to build inflate fixed tables once.
- Add --undefined option to ./configure for UBSan checker.
- Copy only the initialized deflate state in deflateCopy.
- Zero inflate state on allocation.
- Add compress_z and uncompress_z functions.
* Complete rewrite of cmake support.
* Remove untgz from contrib.
* Vectorize the CRC-32 calculation on the s390x.
* Remove vstudio projects in lieu of cmake-generated projects.
* Add zipAlreadyThere() to minizip zip.c to help avoid duplicates.
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perl: update to 5.42.2.
Perl 5.42.2 represents approximately 3 weeks of development since Perl
5.42.1 and contains approximately 2,900 lines of changes across 57 files
from 6 authors.
tex-musixtex{,-doc}: update to 1.41
1.40
Fixed incompatibility between latest LaTeX and font-supporting
extension packages.
1.39
Added support for EBGaramond and URWClassico text fonts.
Added support for appoggiaturas and grace notes in tiny-notesize staffs.
