NAS-141470 / 27.0.0-BETA.1 / Inject mknod for privileged Allow-All containers (#19319)
## Problem
A privileged container with `capabilities_policy` "ALLOW" keeps every
capability in the bounding set, but libvirt only widens the LXC cgroup
device ACL when an explicit `<mknod state='on'/>` child is emitted. As a
result "Allow All" can't create device nodes, so Docker fails to extract
images whose layers contain overlay whiteouts (character 0:0 nodes made
via mknod) even though CAP_MKNOD is present.
## Solution
For privileged containers (idmap None) under an ALLOW policy, inject the
mknod capability unless the user set it explicitly, so libvirt emits
`<mknod state='on'/>` and widens the device ACL — making "Allow All"
actually allow device-node creation. Adds an api2 integration test that
pulls and runs a complex image inside such a container.
AMDGPU: Migrate CodeGen tests to amdgpu subarch triple (52)
Fold the explicit -mcpu subtarget into the amdgpu subarch triple on llc/opt RUN lines (e.g. -mtriple=amdgcn -mcpu=gfx600 -> -mtriple=amdgpu6.00), now that these tests carry an explicit -mcpu following the default-subtarget pinning. Codegen output is unchanged.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
AMDGPU: Migrate tests with regenerated checks to amdgpu subarch triple (54)
Fold the explicit -mcpu subtarget into the amdgpu subarch triple on autogenerated tests where the folded triple changes output relative to the previous default subtarget (e.g. cost-model BASE lines, scheduling). CHECK lines were regenerated with the update_*_test_checks.py scripts.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
AMDGPU: Migrate GlobalISel CodeGen tests to amdgpu subarch triple (53)
Fold the explicit -mcpu subtarget into the amdgpu subarch triple on llc/opt RUN lines (e.g. -mtriple=amdgcn -mcpu=gfx600 -> -mtriple=amdgpu6.00), now that these tests carry an explicit -mcpu following the default-subtarget pinning. Codegen output is unchanged.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
AMDGPU: Migrate CodeGen tests to amdgpu subarch triple (51)
Fold the explicit -mcpu subtarget into the amdgpu subarch triple on llc/opt RUN lines (e.g. -mtriple=amdgcn -mcpu=gfx600 -> -mtriple=amdgpu6.00), now that these tests carry an explicit -mcpu following the default-subtarget pinning. Codegen output is unchanged.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
AMDGPU: Migrate CodeGen tests to amdgpu subarch triple (50)
Fold the explicit -mcpu subtarget into the amdgpu subarch triple on llc/opt RUN lines (e.g. -mtriple=amdgcn -mcpu=gfx600 -> -mtriple=amdgpu6.00), now that these tests carry an explicit -mcpu following the default-subtarget pinning. Codegen output is unchanged.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
AMDGPU: Migrate GlobalISel CodeGen tests to amdgpu subarch triple (49)
Mechanically migrate the command-line target spelling on llc/opt RUN lines in
llvm/test/CodeGen/AMDGPU from -mtriple=amdgcn ... -mcpu=<gfx> to the folded
subarch triple form (e.g. -mtriple=amdgpu9.00-amd-amdhsa), dropping the
redundant -mcpu.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
AMDGPU: Migrate GlobalISel CodeGen tests to amdgpu subarch triple (48) (#209756)
Mechanically migrate the command-line target spelling on llc/opt RUN
lines in llvm/test/CodeGen/AMDGPU from -mtriple=amdgcn ... -mcpu=<gfx> to the
folded subarch triple form (e.g. -mtriple=amdgpu9.00-amd-amdhsa), dropping the
redundant -mcpu.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
devel/gprbuild: Improve option DEBUG
devel/gprbuild:
* Currently options DEBUG is ${BROKEN} because of some warnings from
libgpr and between the Port and the GNAT tool-chain. Replace the
${BROKEN} statement with a new variable that is passed to the libgrp
do-build phase that attenuates the tool-chain warnings
PR: 296655
AMDGPU: Migrate GlobalISel CodeGen tests to amdgpu subarch triple (47) (#209755)
Mechanically migrate the command-line target spelling on llc/opt RUN
lines in llvm/test/CodeGen/AMDGPU from -mtriple=amdgcn ... -mcpu=<gfx> to the
folded subarch triple form (e.g. -mtriple=amdgpu9.00-amd-amdhsa), dropping the
redundant -mcpu.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
[Flang][OpenMP] Implement DEPEND clause for TASKWAIT directive (#193568)
Implements support for the `DEPEND` clause on `TASKWAIT`, added in
OpenMP 5.0.
AMDGPU: Migrate GlobalISel CodeGen tests to amdgpu subarch triple (46) (#209754)
Mechanically migrate the command-line target spelling on llc/opt RUN
lines in llvm/test/CodeGen/AMDGPU from -mtriple=amdgcn ... -mcpu=<gfx> to the
folded subarch triple form (e.g. -mtriple=amdgpu9.00-amd-amdhsa), dropping the
redundant -mcpu.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
[mlir][acc] Introduce acc to gpu codegen pass (#209606)
Introduce pass that lowers `acc.compute_region` to the GPU dialect. For
host-side kernels it wraps the region in `gpu.launch`; for specialized
ACC routines already inside a `gpu.func`, the body is lowered in place.
The pass maps nested `scf.parallel` / `scf.for` loops carrying
`acc.par_dims` to GPU block and thread parallelism, materializes
privatization and reductions for the device, and handles
synchronization.
Example input IR:
```
func.func @two_sibling_loops() {
%c4 = arith.constant 4 : index
%c32 = arith.constant 32 : index
%grid = acc.par_width %c4 {par_dim = #acc.par_dim<block_x>}
%block = acc.par_width %c32 {par_dim = #acc.par_dim<thread_x>}
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AMDGPU: Migrate GlobalISel CodeGen tests to amdgpu subarch triple (45) (#209753)
Mechanically migrate the command-line target spelling on llc/opt RUN
lines in llvm/test/CodeGen/AMDGPU from -mtriple=amdgcn ... -mcpu=<gfx> to the
folded subarch triple form (e.g. -mtriple=amdgpu9.00-amd-amdhsa), dropping the
redundant -mcpu.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
AMDGPU: Migrate GlobalISel CodeGen tests to amdgpu subarch triple (44) (#209734)
Mechanically migrate the command-line target spelling on llc/opt RUN
lines in llvm/test/CodeGen/AMDGPU from -mtriple=amdgcn ... -mcpu=<gfx> to the
folded subarch triple form (e.g. -mtriple=amdgpu9.00-amd-amdhsa), dropping the
redundant -mcpu.
Co-Authored-By: Claude <noreply at anthropic.com> (Claude-Opus-4.8)
[HIP][SPIR-V] Enable -spirv-preserve-auxdata (#209520)
Function attributes such as `convergent` are only kept through SPIRV if
`-spirv-preserve-auxdata` is enabled. This is important to keep the
translation as accurate as possible. Also, this aligns with the
translator path.
[analyzer] Recognize missing MPI collectives in MPI-Checker (#209263)
Fixes a false positive in the `optin.mpi.MPI-Checker` where legitimate
code was flagged with "Request 'X' has no matching nonblocking call."
Background for reviewers unfamiliar with MPI or this checker
------------------------------------------------------------
MPI (Message Passing Interface) is the standard API for communication
between processes in HPC/cluster programs (C/C++/Fortran). Many MPI
operations come in a *nonblocking* form, prefixed with "I" (for
"immediate"): e.g. `MPI_Isend`, `MPI_Iscatter`. A nonblocking call
returns immediately and hands back an `MPI_Request` handle; the caller
must later complete it with `MPI_Wait` (or `MPI_Waitall`). Forgetting to
wait, or reusing a request before waiting, are real bugs (buffer reuse
races, leaked requests).
The MPI-Checker (originally contributed as a GSoC 2016 project, and is a
domain-specific check - hence it's in "optin").
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[HLSL] Consolidate texture tests (#209348)
Fixes #205878
This PR consolidates all the current texture tests into files that all
texture types can extend by adding new RUN lines.
This should greatly reduce the amount of effort required to implement
and review tests for new texture types.
Assisted by: Claude Opus 4.8
[lldb][bazel] Add the lldb-mcp binary to the Bazel overlay (#209498)
#143628 added the lldb-mcp tool (an MCP server multiplexer for LLDB),
built by lldb/tools/lldb-mcp/CMakeLists.txt. The Bazel overlay already
models the ProtocolMCP library and the MCP protocol-server plugin, but
not the lldb-mcp executable itself, so it is missing from the Bazel
build.
Add an lldb-mcp cc_binary modeled on the existing lldb-dap target: glob
tools/lldb-mcp/**, expand the macOS Info.plist via expand_template, and
depend on liblldb.wrapper, Host, Utility, ProtocolMCP, and the LLVM
Option/Support libraries. lldb-mcp has no Options.td, so unlike lldb-dap
no gentbl_cc_library is needed.
This properly translates into BUCk internally at Meta and then builds
with buck2, but I cannot validate the bazel build of this new target
directly.
bazel rule generation assisted with: claude
