[UnsafeBufferUsage] Check for uninstantiated default arguments to prevent crash. (#188817)
Fix a crash introduced by
https://github.com/llvm/llvm-project/pull/184899
The -Wunsafe-buffer-usage analysis was crashing when it encountered a
template function with a default argument that hadn't been instantiated
yet. This occurred in populateStmtsForFindingGadgets when it attempted
to access the default argument of each parameter.
This fix adds a check to ensure the default argument is instantiated
before attempting to access it.
Assisted-by: Gemini
[lldb] Enable caching for BytecodeSyntheticChildren::FrontEnd::Update (#181199)
Update `BytecodeSyntheticChildren` to support `ChildCacheState` return
values from `@update` implementations.
[lldb][bytecode] Change compiler to require update return type decl (#188637)
To better ensure that bytecode `@update` implementations return a 0/1
value (see https://github.com/llvm/llvm-project/pull/181199), this
changes the Python -> formatter bytecode compiler to require that Python
`update` methods be declared to return `bool`.
A declaration like this will be a compiler error:
```py
def update(self):
# implementation...
```
[AMDGPU] Do not overlap dst with srcs for v_cvt_scalef32_2xpk16_fp6/bf6_f32 (#188809)
v_cvt_scalef32_2xpk16_fp6_f32 and v_cvt_scalef32_2xpk16_bf6_f32, as multipass instructions,
the destination operand must not overlap with any of the source operands.
In this work, we apply Constraints = "@earlyclobber $vdst" to these two instructions.
Fixes: LCCOMPILER-561
[VPlan] Explicitly unroll replicate-regions without live-outs by VF. (#170212)
This patch adds a new replicateReplicateRegionsByVF transform to
unroll replicate=regions by VF, dissolving them. The transform creates
VF copies of the replicate-region's content, connects them and converts
recipes to single-scalar variants for the corresponding lanes.
The initial version skips regions with live-outs (VPPredInstPHIRecipe),
which will be added in follow-up patches.
Depends on https://github.com/llvm/llvm-project/pull/170053
PR: https://github.com/llvm/llvm-project/pull/170212
www/nginx-devel: Update to 1.29.7
Changes with nginx 1.29.7 24 Mar
2026
*) Security: a buffer overflow might occur while handling a COPY or
MOVE
request in a location with "alias", allowing an attacker to
modify
the source or destination path outside of the document root
(CVE-2026-27654).
Thanks to Calif.io in collaboration with Claude and Anthropic
Research.
*) Security: processing of a specially crafted mp4 file by the
ngx_http_mp4_module on 32-bit platforms might cause a worker
process
crash, or might have potential other impact (CVE-2026-27784).
Thanks to Prabhav Srinath (sprabhav7).
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misc/github-copilot-cli: Add script and binary flavors
script flavor (default): existing behavior with all npm dependencies
binary flavor (-bin): C launcher binary with all JS and Node.js
embedded in the binary, requires only node at runtime
(no Node.js, no npm packages, no native modules)
Node.js SEA (Single Executable Application) cannot be used because
postject_find_resource() has no FreeBSD code path. The binary flavor
instead uses a C launcher that embeds all copilot JS files as a gzip-
compressed tar archive, extracts to ~/.cache/github-copilot-cli/v<ver>/
on first run, and executes them with the system node.
[CUDA] Use SetVector for CUDADeviceVarODRUsedByHost for determinism (#188616)
This replaces DenseSet with SetVector to avoid non-deterministic
iteration order
when emitting device variables ODR-used by host.
www/nginx: Update to 1.28.3
Changes with nginx 1.28.3 24 Mar
2026
*) Security: a buffer overflow might occur while handling a COPY or
MOVE
request in a location with "alias", allowing an attacker to
modify
the source or destination path outside of the document root
(CVE-2026-27654).
Thanks to Calif.io in collaboration with Claude and Anthropic
Research.
*) Security: processing of a specially crafted mp4 file by the
ngx_http_mp4_module on 32-bit platforms might cause a worker
process
crash, or might have potential other impact (CVE-2026-27784).
Thanks to Prabhav Srinath (sprabhav7).
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[mlir] Bump SmallVector sizes along hot paths (#188827)
This is based on empirical data from compiling 9 medium to large
language and diffusion models with IREE. e2e, this improves compilation
times by 0.33% in terms of `instructions:u` (same metric is used by the
[CTMark for
Clang](https://www.npopov.com/2024/01/01/This-year-in-LLVM-2023.html#compile-time-improvements)).
I explored using other constants and these are the ones that performed
best while keeping the sizes relatively small.
Merge tag 'v7.0-rc5-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fix from Steve French:
- Fix rebuild of mapping table
* tag 'v7.0-rc5-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
smb/client: ensure smb2_mapping_table rebuild on cmd changes
[libc] Fix check-libc-lit running tests during build (#188081)
Updated check-libc-lit to depend only on build-only targets. Added
libc-integration-tests-build to track integration test executables and
updated LLVMLibCTestRules.cmake to populate it.
Removed incorrect dependencies on execution suites in include and
integration tests that were introduced in #184366.
[LV] Refine tripcount estimate using minimum iteration count rt check. (#188135)
When not folding the tail the minimum iteration count check ensures that
the vector loop is not executed if computing the trip count wraps around
to zero, as the trip count must be at least VF when vectorizing without
tail-folding.
Add and use a new tryToRefineConstantMaxTripCount helper. This ensures
we do not create dead main loops when vectorizing the epilogue, as we
choose smaller main VFs.
PR: https://github.com/llvm/llvm-project/pull/188135
[X86] Remove custom widening legalization of vector udiv/sdiv/urem/srem. (#188786)
This custom legalization was preserving splat values in widened
build_vector to allow the div by constant optimization to work.
We now allow division by constant optimization on narrow vector types
before type legalization so we no longer need this.
[lldb] Fix missing return in NativeFile::SeekFromEnd stream path (#188596)
The stream path in NativeFile::SeekFromEnd was missing a `return result`
statement after the fseek block, causing it to fall through to the error
handler which overwrites the error status with "invalid file handle"
even on success. Both SeekFromStart and SeekFromCurrent correctly return
after their stream blocks.
while no active callers to this function, It is still worth fixing this.
Revert "[CodeView] Generate `S_DEFRANGE_REGISTER_REL_INDIR` (#187709)" (#188833)
This reverts commit 08a4085. The change breaks `nvro.cpp` in the
debugging tests on the buildbot
(https://lab.llvm.org/buildbot/#/builders/46/builds/32873) but works
locally for me. It might be because the buildbot is using an older
Windows SDK.
In addition, it reverts parts of #188769 (using `.` over `->`).
[TargetLowering] Remove AllowTruncation from matchUnaryPredicate in BuildExactSDIV/BuildExactUDIV. (#188785)
After #187378 these are no longer tested. I'm concerned that we can
create illegal scalar types after type legalization. I don't know how to
test this now so I'd like to remove support until it is needed and can
be tested.
