ministat: parse comma used as decimal delimiter
This allows to use output of '/usr/bin/time -ao foo' as direct input to
ministat(1).
While here make diagnostic message more verbose.
witness: fix operation without WITNESS_SKIPSPIN
Since malloc(9) even with M_NOWAIT is forbidden when we hold a spinlock,
we can't print detailed lock tree as the operation tries to allocate
memory.
Fixes: fb4b0c91195195561560bb2fb2c1ba8da81f7ccf
[clang][CodeGen][X86_64] Honor per-function AVX ABI in C/C++ call paths, maintain old psABI for PlayStation. (#193298)
Fixes https://github.com/llvm/llvm-project/issues/64706
Wire per function x86 AVX ABI level into CodeGen arrangement methods so
__attribute(__target("avx"))) / __attribute(__target("avx512f"))) on
methods, ctors, and free-functions affects ABI lowering consistently.
Specifically:
- Added X86AVXABILevel member to CGFunctionInfo.
- Populated X86AVXABILevel member in CGFunctionInfo objects via
arrangement methods declared in CodeGenTypes.h.
- Respect CGFunctionInfo AVX Level in X86_64ABIInfo::computeInfo.
- Add/extend regression tests for:
- free-function target-attribute AVX ABI lowering
- C++ method/ctor target-attribute AVX ABI lowering
- PS4/PS5 legacy ABI behavior (no per-function AVX ABI change)
---------
Co-authored-by: Aaron Ballman <aaron at aaronballman.com>
[AArch64][SVE] Support lowering masked loads/stores of <4 x bf16> and <8 x bf16> (#208744)
Add support for lowering masked loads/stores of <4 x bf16> and <8 x
bf16> when target features contain "+sve" and "+bf16".
Fixes: #201149
Don't bother with the "no disk label" message. It's not particularly
useful, and is downright confusing if the disk has some other sort of
partition scheme (such at GPT).
Add expression validation tests for DW_OP_swap (#210184)
Add DIExpression validation tests for DW_OP_swap that we noticed were
missing. The tests are based on the existing expression tests for
DW_OP_stack_value.
Tested via make check.
Assisted by AI.
[lldb/script] Migrate frame recognizers onto ScriptedPythonInterface (#209805)
Give `frame recognizer add -l` a formal
ScriptedStackFrameRecognizerInterface, matching the architecture already
used by ScriptedProcess, ScriptedBreakpoint, etc.: a C++ interface
header, a Python-backed implementation built on
ScriptedPythonInterface's CreatePluginObject/Dispatch machinery,
PluginManager registration, and a generatable Python ABC template
(scripted_stackframe_recognizer.py).
get_recognized_arguments' documented contract returns a plain list of
lldb.SBValue (not an lldb.SBValueList), so it bypasses the generic
Dispatch<ValueObjectListSP>() extractor and calls the SWIG bridge
directly, matching the legacy behavior exactly.
ScriptedStackFrameRecognizer now holds a single interface object created
once in its constructor and reused across every RecognizeFrame() call,
same lifecycle as before.
Signed-off-by: Med Ismail Bennani <ismail at bennani.ma>
[ThreadSafety] Add two-state semantics for handleCall in beta mode
Previous contributions added alias analysis and strengthened soundness by
invalidating out-parameters in beta mode. The latter feature introduced a
distinction between the contexts before and after a function call, because the
invalidation assumes that an argument passed by pointer or reference may be
changed by the function.
This requires two-state semantics for handling function attributes.
Specifically, AcquireCapability and AssertCapability, which both ensure that
some locks are held after the call, should be associated with the post-state.
Other function attributes, like RequireCapability or ReleaseCapability, are
associated with the pre-state.
This commit implements these semantics. This change only affects beta mode.
A previous discussion about these semantics:
https://github.com/llvm/llvm-project/pull/190154
[clang][ssaf] Add static-library create subcommand (#208799)
This change adds `clang-ssaf-linker static-library create` for bundling
TU summaries into a StaticLibrary archive. The linker has been
refactored to dispatch on `cl::SubCommand`; invocations without a
subcommand still run the existing linker pipeline unchanged for backward
compatibility.
rdar://181930526
[BOLT] Add fdata symbols mode (#209932)
Add a new fdata profile mode accepting symbol names as-is.
It addresses the UX gap surfaced by #208313 that all methods of selecting
functions to process (symbolized profile types, `-funcs*` options) expect
disambiguated local symbols.
Introduce fdata mode activated by a `symbols` header line, where each subsequent
line is a (mangled) symbol name. The names are matched against restored function
names (with disambiguation suffix stripped), and every matching function gets an
execution count of 1.
This can be used to drive selective instrumentation (`--instrument-hot-only`) or
basic linker-script style optimizations.
Symbols are stored as branch entry data so matching reuses the existing default
branch profile path.
Test Plan:
Update docs/profiles.md and add profile-symbols-mode.s
[orc-rt] Add asCCallback utility -- C callbacks for methods. (#210048)
Adds orc_rt::asCCallback<&Class::method>, which produces a C-ABI
function pointer that forwards to the given member function. The first
parameter of the generated trampoline is an opaque context pointer (
void * for non-const methods, const void * for const methods) that is
cast back to the class type and used as the receiver:
struct Counter {
void inc(int N) { Count += N; }
int Count = 0;
};
Counter C;
void (*CB)(void *, int) = asCCallback<&Counter::inc>;
CB(asCCallbackContext<&Counter::inc>(C), 2); // C.Count == 2
asCCallbackContext produces the matching context pointer via
static_cast, so any base-class offset is applied and const-ness is
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[libc][math] Fix double-rounding errors with denormal inputs for hypot function. (#208247)
The issue was reported by Paul Zimmermann.
Solution: for denormal inputs, we use 1.0 + x trick after proper scaling
to mimick rounding at denormal scale.
gn build: Support building debug binaries from a release build directory.
This change makes it so that all binaries in `bin` have a corresponding
debug binary target `$TARGET.dbg` that will build a debug binary in
`bin.dbg/$TARGET`. This is implemented using a separate toolchain for
the debug builds. This has the following advantages over a separate
debug build directory:
1. Can use release mode tblgen to generate code for the debug build
binaries, which speeds up the build because it can run tblgen faster as
well as being able to reuse the tblgen binary from the release build.
2. Can reuse runtimes built in the release mode clang's resource
directory, avoiding the need to build them again with a slow debug
build of clang.
Assisted-by: gemini
Reviewers: aeubanks, nico
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[docs] Finish MyST migration for BOLT docs (#210199)
Tracking issue: #201242
See the [migration guide] for more information.
[migration guide]:
https://llvm.org/docs/SphinxQuickstartTemplate.html#markdown-migration-guidelines
This is a stacked PR based on #210198, which will be a standalone commit
that
renames *.rst -> *.md before this PR lands for history preservation
purposes.
This was prepared with rst2myst plus LLM-assisted cleanup. I paged
through all the generated HTML looking for migration artifacts, and all
of the differences I could find appear to be formatting error
corrections. Please spot check my work and approve if it looks good. You
can use the HTML links below to confirm it renders properly.
-----
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Merge tag 'v7.2-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- fallocate fixes
- unit test fixes
- fix allocation size after duplicate extents
- fix check for overlapping data areas
* tag 'v7.2-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb/client: flush dirty data before punching a hole
smb/client: Use EXPORT_SYMBOL_IF_KUNIT() to export symbols in SMB2
smb/client: Use EXPORT_SYMBOL_IF_KUNIT() to export symbols
smb: client: reject overlapping data areas in SMB2 responses
smb/client: refresh allocation after EOF-extending fallocate
smb/client: emulate small EOF-extending mode 0 fallocate ranges
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[bolt][docs] Rename BOLT docs to Markdown (#210198)
Tracking issue: #201242
See the [migration guide] for more information.
[migration guide]:
https://llvm.org/docs/SphinxQuickstartTemplate.html#markdown-migration-guidelines
This is the initial straight rename commit. It will probably break the
docs build, but it has to be a separate PR for blame preservation
purposes.
