[AMDGPU] Fix instruction size of LDS-DMA buffer loads (#211302)
Mark i1imm_0 as OPERAND_IMMEDIATE type, so its packed 1-bit value is not
mistaken for a trailing literal (same for InstFlag).
Applies to the swz/IsAsync fields of buffer (MUBUF) and FLAT LDS-DMA
instructions.
Changes estimated size for the corresponding instructions; codegen stays
untouched.
Add unit test, checking encoded size is 8 bytes (was: 12).
AI-assisted.
[SCEV] Use SCEVPtrToAddr instead of SCEVPtrToInt in SCEV. (#180244)
Use SCEVPtrToAddr instead of SCEVPtrToInt for pointer -> int
conversion in SCEV, like when computing trip count expressions.
getPtrToIntExpr now also creates SCEVPtrToAddrExpr.
Removal of SCEVPtrToIntExpr out of this PR, to limit the scope and
will be done as NFC follow-up.
PR: https://github.com/llvm/llvm-project/pull/180244
Fix AD member-server breakage on HA failover and upgrade
Two failure modes on an HA Active Directory member server: after a
failover, AD users are denied API access despite authenticating; after
an upgrade, the stored machine account secret can be wiped, forcing a
rejoin. Both come from mishandling winbind's local SAM domain SID and
the node-local secrets.tdb across boot, failover and upgrade.
winbind reads the local SAM SID from secrets.tdb at startup.
smb.set_system_sid (net setlocalsid) can change it under a running
winbindd on failover (smb.configure runs on become-master, winbindd is
not restarted). winbindd's domain list then holds a SID the SAMR/passdb
layer rejects, so local/BUILTIN alias expansion in wb_gettoken fails
with NT_STATUS_NO_SUCH_DOMAIN -- fatal to the whole group token, so
getgrouplist() returns only the primary gid. The truncated list drops
the AD group the RBAC privilege is granted to, denying access via the
one authenticate_user branch that logged nothing.
The standby differs: activate_standby restores secrets.tdb from the DB
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DAG: Stop legalizing poison to undef
Previously all targets would expand poison to undef, which was a
shortcut taken when poison was introduced.
Introduces a new dedicated poison matcher in tablegen; this avoids
multiple opcode changes, and avoids some problematic contexts that
couldn't deal with PatFrags.
This probably should be legal by default for all legal types.
Co-authored-by: Claude (Claude-Opus-4.8)
AMDGPU: Avoid dropping poison when extracting a high element (#211872)
Haven't found a case where this matters, but I want to stop finding
this instance of the is-undef-get-undef pattern.
AMDGPU: Don't pack a build_vector with an undef/poison lane (#211871)
Once ISD::POISON is legal it reaches isel and is treated as canonical, so
is_canonicalized_2<build_vector> matched build_vector<x, poison> and
selected a v_pack for a don't-care high lane. Avoids regressions in future
patches.
Co-authored-by: Claude (Claude-Opus-4.8)
[clang][Fuchsia] Add __Fuchsia_Compiler_ABI__ predefine (#211744)
This establishes a new canonical predefine for *-fuchsia targets:
`__Fuchsia_Compiler_ABI__` is set to an integer for the version
number of the Fuchsia Compiler ABI the compiler supports. The
value will change as appropriate with changes to *-fuchsia target
ABI expectations. It is not anticipated that the compiler will
support selecting target ABI versions, only the latest as the
canonical target-specific behavior. Fuchsia Compiler ABI
versions are unrelated to the Fuchsia API levels supported by
Fuchsia systems; newly-built programs may target older API levels
with `-ffuchsia-api-level`, but everything relying on the Fuchsia
Compiler ABI is built and deployed together as an isolated unit.
[mlir][xegpu] Allow create_mem_desc from ND memref (#211836)
Relax the create_mem_desc source operand constraint to accept a
statically shaped shared-memory memref of any rank, replacing the
1D/2D-only StaticShared{1,2}DMemRefOf classes with a rank-agnostic
StaticSharedMemRefOf.
Add a verifier requiring the source memref to be contiguous row-major,
update the op documentation, and add valid/invalid lit tests.
assisted-by-claude
Co-authored-by: Claude Opus 4.8 <noreply at anthropic.com>
mail/bogofilter*: fix unaligned access on some databases
This was found with the undefined behavior sanitizer,
and affects the generic code (independent of the concrete database
back-end in use) so we need to bump all PORTREVISIONS.
The bug was that internal code was casting a void * to a uint32_t *
without ensuring alignment of the source value.
Let's use memcpy to a statically-sized array and let the optimizer
handle it for us. Adds files/patch-src_datastore.c.
PR: 297024
MFH: 2026Q3
(cherry picked from commit edee11f3ade730ece6643703213c3823d67b8138)
mail/bogofilter*: fix unaligned access on some databases
This was found with the undefined behavior sanitizer,
and affects the generic code (independent of the concrete database
back-end in use) so we need to bump all PORTREVISIONS.
The bug was that internal code was casting a void * to a uint32_t *
without ensuring alignment of the source value.
Let's use memcpy to a statically-sized array and let the optimizer
handle it for us. Adds files/patch-src_datastore.c.
PR: 297024
MFH: 2026Q3
[flang][OpenMP] Fix alias analysis for omp.private copy region block arguments to help inline hlfir.assign to improve time taken in LTO. (#209539)
## Summary
This PR fixes https://github.com/llvm/llvm-project/issues/200922 - a
compile-time regression affecting firstprivate clauses on simple arrays
in OpenMP target regions.
When `InlineHLFIRAssign` checks whether to inline `hlfir.assign`
operations in `omp.private` copy regions, the alias analysis
conservatively returns `MayAlias` for the copy region block arguments
(`%arg0` mold vs `%arg1` private). This prevents inlining and forces a
fallback to `fir.call @_FortranAAssign`, which:
- Pulls in 89 runtime functions via LTO
- Creates 550K+ abstract attributes in OpenMPOpt
- Causes severe compile-time degradation (60%+ increase in some cases)
**Example:**
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[libc++] Rename pre-commit CI workflows (#211844)
Since we're expanding libc++'s pre-commit CI to add other types of
tests, (e.g. tools tests, performance tests, etc), it makes sense to be
a bit more precise about what each workflow does, and to use a
consistent pattern across workflow names.
Also, update stale references to old names in the documentation and in
some infrastructure scripts.
mail/bogofilter*: Prepare LMDB 1.0 transition
Here's what we do now:
- mail/bogofilter currently depends on lmdb0, a 0.9.X port, so
it continues to work as before
- add a new mail/bogofilter-lmdb1 port that depends on lmdb, the 1.0
version of the LMDB database.
- add the upstream patch for bogofilter 1.3.0.rc1 that I made and
that delphij@ prepared for integration into the ports tree - thanks!
Here's the plan for end of 2026:
- AT THE SAME TIME:
- upgrade mail/bogofilter to depend on LMDB 1.0
- portrm mail/bogofilter-lmdb1
- add a MOVED entry to redirect from bogofilter-lmdb1 to bogofilter.
While here, clean up and rearrange the Makefiles.
PR: 296519
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[libc++][CI] Add a Github workflow to test libc++ tools (#211067)
We have a few scripts under libcxx/utils, and they wouldn't be tested on
a regular basis. As a result, changes to e.g. the build system could
break these scripts, which in turn could break some Github workflows
like the libc++ PR benchmarking workflow.
This patch adds a new `test-tools` configuration to `run-buildbot` which
allows testing these tools locally, and a new dedicated Github workflow
to run it.
clang/AMDGPU: Migrate cc1 tests to subarch triples (5) (#211840)
Rewrite OpenMP cc1 test RUN lines to the new subarch triple form,
dropping the redundant -target-cpu, and regenerate autogenerated CHECK
lines. Tests that intentionally assert the "target-cpu" attribute are
left unchanged.
Co-authored-by: Claude (Opus 4.8) <noreply at anthropic.com>
AMDGPU: Reject unrecognized amdgpu subarch in TargetID parsing (#211866)
A bare "amdgpu" or an unrecognized "amdgpu<x>" both parse to the
amdgpu arch with no subarch; TargetID::parse previously accepted them,
taking a named processor and ignoring the missing subarch.
Reject triples with no subarch, unless it uses the legacy spelling.
This is another workaround for Triple not having a proper unknown value
for subarches.
Co-authored-by: Claude (Opus 4.8) <noreply at anthropic.com>
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"It's a bit all over the place, as I was hoping to fix a decade-old bug
in our seccomp handling on syscall entry and ended up collecting other
fixes in the meantime. You'll see the failed attempt (+revert) here
but I didn't want to hold off on the others any longer. Hopefully
we'll get that one squashed next week...
- Fix early_ioremap() of unaligned ACPI tables
- Remove bogus information from data abort diagnostics
- Fix kprobes recursion during single-step
- Fix incorrect constant in ESR address size fault macro
- Fix OOB page-table walk in memory hot-unplug notifier
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