[lldb-mcp] Host managed debug sessions in-process (#210450)
Let a client create and own debug sessions with session_create and
session_close. Rather than spawn a separate lldb per session, lldb-mcp
hosts them in its own process, communicating over a loopback socket to
keep things uniform with external lldb instances.
The benefits of this approach are:
- There is no child-process machinery, so nothing needs to be spawned
and cleaned up.
- It works without the need for an external lldb binary.
- It avoids the deadlock by reading stdin through a raw fd instead of
the FILE* stdio path that previously hung the Debugger constructor
contending on the REPL's stdin lock.
- The architecture stays uniform between in-process and external
sessions.
The trade-off is no isolation, so an LLDB crash takes down lldb-mcp
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[MLIR][XeGPU] Add local forward layout propagation (#208932)
Backward layout propagation only assigns layouts to values that are
(transitively) consumed by an anchor op. A value whose only consumer is,
e.g., the next iteration of a loop is left without a layout.
Add a local forward-fill step, run after the backward materialization
walk in propagateLayouts(): it visits ops in producer-first order and,
for any un-laid-out vector result, infers the layout from the op's
already-known operand layouts via a new
inferResultLayoutFromSourceForNonAnchorOp dispatcher (covering
elementwise, transpose, and shape_cast; other ops are left as TODO),
then stamps it with setDistributeLayoutAttr.
---------
Co-authored-by: Claude Opus 4.8 <noreply at anthropic.com>
[CIR][AArch64] Upstream store (vst1_*/vst1q_*) NEON builtins (#209347)
Related to https://github.com/llvm/llvm-project/issues/185382
CIR lowering for store intrinsics (`vst1_*`/`vst1q_*`)
(https://arm-software.github.io/acle/neon_intrinsics/advsimd.html#store)
Port tests:
- `clang/test/CodeGen/AArch64/neon-intrinsics.c`
- `clang/test/CodeGen/AArch64/neon-ldst-one.c`
- `clang/test/CodeGen/AArch64/poly64.c`
- `clang/test/CodeGen/arm-neon-vst.c`
to `clang/test/CodeGen/AArch64/neon/store.c`
[LSV] Don't vectorize load chains across ordered atomics (#208631)
When the LoadStoreVectorizer finds a chain of loads to merge into a
single vectorized load, it hoists all of the constituent loads up to the
location of the first load in the chain.
This is obviously not safe if there are any may-alias stores in the
middle of the chain. But it's *also* not safe if there are `acquire`
*loads* in the middle of the chain.
There's a similar problem with stores. A chain of stores is vectorized
by merging them all into the final store in the chain. This is not safe
if there is an intervening `release` store.
[AMDGPU] Calculate div/rem with frcp more efficiently (#210684)
Integer division q = a/b can be implemented by fp reciprocal with:
fq = fa * recip(fb)
fq is truncated to produce q. Due to fp rounding and reciprocal accuracy
issues fq can be too small and truncation can produce a value too small
by one.
If abs(a)<=0x400000, this underestimate can be guarded more efficiently
by calculating:
fq=fa+1ulp/b
If abs(a)<=0x400000, adding 1 ulp will increase a by at most 0.5, so the
calculated q will be the same. Adding 1ulp can be done with one integer
add.
This change is analogous to the change done in
https://github.com/llvm/llvm-project/pull/204950 but in
AMDGPUISelLowering.cpp.
Signed-off-by: John Lu <John.Lu at amd.com>
[libunwind] Fix exposure of UNW_AARCH64_RA_SIGN_STATE through _Unwind_GetGR (#209947)
The pseudo register was previously hacked in under kRegisterIsUndefined, leaving it in a state that was only accessible from within the unwinder itself.
To fix this, allowing external access to the state (and therefore tests!), we invent a new register location kRegisterIsPseudo to record the additional state that the register has been defined by a .cfi_negate_ra_state opcode having been executed.
[OpenACC] Support dynamic worker-private shared memory (#210770)
Use the maximum ThreadY width when the runtime worker count prevents
exact static sizing.
firewall: pluginify filter_core_get_default_nat_outbound_networks()
With this we can collect all networks eligible for outbound/source
NAT. The issue, however, is two-fold:
1. On the one hand we need all the internal networks to NAT.
2. On the other hand we need all the external interfaces to NAT over.
The first part is relatively easy, but the second part overloads
the function output. It would probably be nicer to return a rule
structure, but that would imply moving the rules generation around
a bit, likely inside $fw and then we still have to offer it to
MVC and fix the legacy page to use the same data feed.
[scudo] Remove dead code and other small cleanups. (#210454)
Some dead code from the error info refactor is still around, so delete
that. Also cleanup spelling and spacing.
Modified the tests to use TestOnly functions so it's clear what is
actually used.
www/gatus: Add newsyslog.conf(5) file for log rotation
* To implement log rotation, daemon(8) is configured to accept the
SIGHUP signal in order to reopen the log file, and the PID of the
daemon(8) process is recorded in its own PID file so that
newsyslog(8) can rotate the log.
* Change `-t "${desc}"` to `-t "${name}: ${desc}"` to be more
descriptive.
PR: 296710
Reported by: yds at Necessitu.de
