[SimplifyCFG] Reuse function comdat for switch lookup table (#190995)
Fixes #190994.
As the switch table is extracted from the function, the table should be
removed when the function is removed, and therefore inherits the comdat
of the function.
[ValueTracking][KnownFPClass] Cover known no-infinity cases for powi (#191736)
Teach `computeKnownFPClass` to infer non-infinity cass for `powi`.
Rules out `inf` for `powi(x, exp)` when:
- `x ?= inf` && `exp > 0`
- `x ?= +/-0` && `exp < 0`
- `x ?= finite` && `|exp| > 1`
- `x ?= subnormal` && `exp ?= -1` (special asym case after |exp| > 1)
where `?=` is maybe equal.
It's a bit conservative, and we could refine it further, but I'd take an
iterative improvement.
status/2026q1: Add Cyber Resilience Act (CRA) entry
Text author: Alice Sowerby <alice at freebsdfoundation.org>
Reviewed by: status (carlavilla, salvadore)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D56380
status/2026q1: Add FreeBSD Foundation entry
Section authors:
Advocacy: Anne Dickison <anne at freebsdfoundation.org>
Florine Kamdem <florine at freebsdfoundation.org>
OS Improvements: Joe Mingrone <jrm at freebsdfoundation.org>
Reviewed by: status (Graham Percival <gperciva at tarsnap.com>, salvadore)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D56379
[OpenACC] Fix invalid routine case where 'bind' didn't exist (#192270)
For some reason I'd failed to check the result of `find_if` and just
assumed that the `bind` clause must exist! Looking through my other
tests, I've validated every other combination other than this one for
some reason.
Fixes: #192245
ip_mroute: Fix a lock leak in X_ip_mforward()
If a FIB does not have a router configured, X_ip_mforward() would leak a
lock. Plug the leak.
The IPv6 counterpart did not have such a check. It wouldn't send an
upcall to a non-existent router anyway due to the router_ver check, but
we should verify that a router is present anyway.
Add regression test cases to exercise these code paths.
Reported by: Claude Opus 4.6
Fixes: 0bb9c2b665d9 ("ip6_mroute: FIBify")
Sponsored by: Klara, Inc.
Sponsored by: Stormshield
[Clang] Fix handling of overloads differing only by constraints and ref-qualifiers (#192018)
We should only error about inconsistent qualifiers if the functions are
actually overloads.
Fixes #120812
[llvm-jitlink] Hold Session::ObjLayer by unique_ptr. (#192253)
This will simplify the Session construction process when we remove
jitlink::JITLinkMemoryManager ownership from ExecutorProcessControl in
an upcoming patch.
(Reason: ObjectLinkingLayer's constructor will require a
JITLinkMemoryManager, which we'll want to cerate after the
ExecutionSession has been initialized. Creating a JITLinkMemoryManager
is generally a fallible operation, so we want to be able to bail on
construction of the ObjectLinkingLayer entirely if we can't create a
memory manager for it).
du: Complete libxo transition
* Use xo_warn() / xo_err() instead of warn() / err().
* Add a test case for the POSIX-mandated stdout error check.
* While here, don't assume the size of off_t, address some style issues,
and broaden the use of bool instead of int.
* Reorder SEE ALSO section.
MFC after: 1 week
Sponsored by: Klara, Inc.
Reviewed by: allanjude
Differential Revision: https://reviews.freebsd.org/D56402
[lldb][Docs] Fix presentation of some default values (#192239)
There were two bugs with the display of default values:
1. If a default value contains a backtick, that would render
incorrectly. For example
[`disassembly-format`](https://lldb.llvm.org/use/settings.html#disassembly-format).
Fixed by doing the wrapping when we generate the Markdown instead of
when parsing the directive. MyST will already parse the content of the
directive as Markdown. We can escape backticks inside the string by
changing the fence. Markdown can take any number of backticks at the
start as long as they match the amount at the end
([spec](https://spec.commonmark.org/0.31.2/#code-spans)).
2. When the docs were built on Windows, UTF-8 was not correctly picked
up, because the default encoding isn't utf8 there.
[`separator`](https://lldb.llvm.org/use/settings.html#separator) was one
example (renders correctly on the Website but not on my machine).
[Clang] Diagnose `co_await` expressions in default arguments of nested functions (#191817)
co_await/co_yield expressions are not allowed in default arguments. We
were checking they do not appear outside of function contexts, which
include default arguments of the corresponding function, but it missed
default arguments of functions declared in the body of another
functions.
Because parsing default argument isn't done in a dedicated scope, we do
additional checks in `ActOnParamDefaultArgument`. Because the checks is
done in two places, we cannot introduce a more precise diagnostic.
It might be worth considering a parse scope for default arguments in the
future.
Fixes #98923
[LifetimeSafety] Propagate origins through explicit cast expressions (#192180)
Before this PR, `FactsGenerator` handled cast nodes with
`VisitImplicitCastExpr` (`CastKind` switch case) and
`VisitCXXFunctionalCastExpr` (handle`gsl::Pointer` types). Other
explicit casts (`CStyleCastExpr`, `CXXStaticCastExpr`, ...) had no
handler, so origin was silently dropped. This is the root cause of
#190912: the dangle in `a = StringView(s);` is missed even though the
equivalent `StringView tmp(s); a = tmp;` is reported.
The policy for "does this cast propagate origin?" is a function of
`CastKind`, independent of whether the cast is implicit or explicit.
This PR replaces `VisitImplicitCastExpr` with a generic `VisitCastExpr`.
`VisitCXXFunctionalCastExpr` is retained only to preserve the
`handleTestPoint` logic, then delegates to `VisitCastExpr`.
This mirrors `clang/lib/AST/ExprConstant.cpp`, where each evaluator
implements only `VisitCastExpr` and switches on `CastKind`; the few
ExprClass-specific overrides (e.g., `VisitCXXDynamicCastExpr`) exist
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