[ELF][PowerPC] Don't assume TOC pointer is valid in IPLT entries (#207555)
Unlike normal PLT entries, IPLT entries can be called indirectly even
when in PIEs/DSOs, and so there's no guarantee on what's in the TOC
pointer register at that time. Therefore we must emit variants of the
existing code that work without it, whether r12-relative (playing the
same role as MIPS's $25) in the same number of instructions, or first
retrieving PC in an i386-like manner, being careful not to clobber LR.
On 32-bit PowerPC even direct calls to IPLT entries face the same issue,
since we'd use the TOC base of the resolver, which may not be the same
as the caller, even within the same object.
Normal canonical PLTs still look broken on 64-bit PowerPC as they use
the TOC pointer register too, and similarly on 32-bit PowerPC for PIEs.
We should probably treat these cases the same as PIE on i386 (except
including PDEs for 64-bit PowerPC), where it's an error due to the use
of %ebx in PLT entries.
[IR][NFC] Remove DbgInstPtr PointerUnion (#212233)
DbgInstPtr was needed in the transitionary phase between intrinsics and
records, but can be removed now.
[libc++] Add benchmarks for std::min_element, std::max_element and std::ranges::max (#209590)
Extend missing coverage and increase consistency across how the
benchmarks are written.
pthread_cond_timedwait.3: use .Fo/.Fc for long arguments list
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D58463
libthr/thread/thr_cond.c: some style
Also use bool for the 'cancel' argument for cond_wait_common().
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D58463
_umtx_op.2: document the CVWAIT_UMTX_TIME flag for the UMTX_OP_CV_WAIT_UC request
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D58463
umtx_op(2): add the CVWAIT_UMTX_TIME flag for the UMTX_OP_CV_WAIT_UC request
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D58463
Add Objective-C support to include-cleaner's AST walker. (#211119)
Extend WalkAST to recognize and report references in Objective-C
constructs, including interfaces, protocols, message expressions,
properties, categories, compatible aliases, and instance variables. Also
update the test helper to support custom compiler arguments and add
corresponding unit tests.
[PowerPC][AIX] Mark LowerCommentStringPass as RequiredPassInfoMixin
Directly using isRequired is deprecated and PassInfoMixin will soon be
moved to a detail namespace.
Reviewers: tonykuttai, w2yehia, hubert-reinterpretcast
Pull Request: https://github.com/llvm/llvm-project/pull/212018
mknod.2: update the man page
State that FIFOs can be created, document the requirement that
dev must be zero then. Mention whiteouts.
PR: 297082
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Differential revision: https://reviews.freebsd.org/D58478
[clang][Tooling] Fix main header matching for headers with special characters. (#211934)
In Clang Tooling, escape HeaderStem before constructing MainIncludeRegex
to prevent special characters (such as '+') from being interpreted as
regex operators. Useful for Objective-C where "Foo+Bar.h" headers are
very common for categories.
gurk: update to 0.10.1.
This release fixes potential account linking issues.
🐛 Bug Fixes
Fix potential segfault on exit (#567)
💼 Other
(deps) Upgrade presage to the latest rev on main (#564)
(deps) Upgrade dependencies (#565, #566)
[lldb][docs] Add hardware feature considerations to target doc (#211213)
As requested on #207166, this change adds information about hardware
features that can help or hinder porting LLDB.
I decided not to add an explicit "help" or "hinder" tag to them because
the descriptions are pretty general and I'd rather people took them as
starting points to think for themselves.
Debugging is a pile of things working together, so it's hard to say that
lack of one thing is "bad" without seeing it in context. Hopefully by
thinking about all these items for their target, developers will be able
to do that.
[HashRecognize] Fix compiler crash on missing latch compare instruction (#211895)
It is never checked whether a candidate loop `L` is latched by a compare
instruction, yet `L.getLatchCmpInst()` is added to the `Roots` for
`containsUnreachable`. If a loop is predicated on anything other than a
compare instruction, `getLatchCmpInst()` returns `nullptr`, causing
`containsUnreachable` to crash when calling `isa<PHINode>`. To fix,
consider loops where `L.getLatchCmpInst()` is null to be not in
canonical form, and reject them.
- Crash: https://godbolt.org/z/Tboo4jo5Y
Assisted-by: Claude Opus 5
[MLIR][LLVM] Preserve unknown function metadata on import
Import non-debug function metadata without a kind-specific dialect conversion into LLVMFuncOp function_metadata. Preserve repeated metadata kinds through the generic carrier so LLVM IR import and export can round-trip those attachments.
[MLIR][LLVM] Translate LLVMFuncOp function metadata
Materialize LLVMFuncOp function_metadata through ModuleTranslation metadata conversion. Attach function metadata after module-level symbols are mapped so metadata references to functions, globals, aliases, and ifuncs can be resolved.
[MLIR][LLVM] Add function metadata to LLVMFuncOp
Add a generic LLVM dialect carrier for LLVM IR function metadata on LLVMFuncOp.
Represent attachments as an ordered list so repeated metadata kinds, such as
multiple type metadata attachments, can be preserved while keeping metadata names
language-agnostic.
