[clang][Driver] Fix libc++ include path on FreeBSD (#212725)
`clang++` defaults to `-stdlib=libc++` on FreeBSD. When building with
both `clang` and `libcxx` included, the freshly built `clang++` uses the
system version of the `libc++` headers. However, this is from the
bundled `libc++` 19.1.7, thus inconsistent with the `libc++` being
built.
Similarly to the NetBSD case, FreeBSD has its own version of
`addLibCxxIncludePaths` which just includes `/usr/include/c++/v1`.
This patch removes `FreeBSD::addLibCxxIncludePaths` in favour of the
generic version in `Gnu.cpp`.
Tested on `amd64-pc-freebsd15.1`.
[Verifier] Prevent insertion/extraction of scalable vectors into/from fixed vectors (#215647)
Per LangRef:
> Scalable vectors can only be inserted into other scalable vectors.
> (...)
> Scalable vectors can only be extracted from other scalable vectors.
Add checks to enforce these rules for `llvm.vector.insert` and
`llvm.vector.extract` intrinsics.
[DomTree] Prepend children instead of appending (#218178)
Follow-up to #176409: `AppendPtr` exists only to keep a node's children
in the order they are added, and a lot of code depends on the order.
Implement an altrenative: in `attachNewSubtree`, create nodes in DFS
order and then link them in reverse. Trees built from scratch are
unchanged. Two tests that print an updated tree are adjusted.
[flang][test] Link designator-path test with FortranParser (#218204)
This is the missing build dependency that wasn't added to
https://github.com/llvm/llvm-project/pull/211606.
It should resolve a some of the build bot failures that have been
reported there.
[clang][bytecode] Use a SmallPtrSet in collectBlocks() (#218192)
Not sure why I used a SetVector here, but switch it to a SmallPtrSet
(this also gets rid of an additional include when #186045 gets merged).
[MLIR][Python] Don't throw in PyDenseArrayIterator dunderNext (#218193)
`PyDenseArrayIterator::dunderNext` signaled iterator exhaustion by
throwing `nanobind::stop_iteration()`. Raising a C++ exception to signal
`StopIteration` incurs stack-unwinding cost on every loop over a dense
array attribute.
#175377 replaced this pattern with `PyErr_SetNone(PyExc_StopIteration)`
(return a null object after setting the Python error indicator) for the
other iterators in the bindings. `PyDenseArrayIterator` was missed in
that change and still throws. This PR applies the same conversion to
`PyDenseArrayIterator::dunderNext`.
Assisted by: Claude
[FoldingSet] Invalidate iterators on mutation (#218179)
Tighten FoldingSet's iterator contract so that, like DenseMap (#199369)
and StringMap (#202237), mutating the set invalidates iterators obtained
before the call. insert / remove (successful) / clear / move bump the
epoch, so a stale iterator fails under LLVM_ENABLE_ABI_BREAKING_CHECKS.
LLM-aided
Reapply "[llc] Register pass plugin callbacks with the new pass manager" (#217727) (#218163)
Reapplies #217727 (aa8d1afeed37), reverted in #218119 (91b04b4d45d9).
The test hardcoded Clang's spelling of an anonymous namespace in
--print-pipeline-passes output. The pass name comes from getTypeName(),
which scrapes __PRETTY_FUNCTION__; that spells anonymous namespaces as
"(anonymous namespace)" under Clang but "{anonymous}" under GCC. Relax
the FileCheck pattern so it is compiler-agnostic.
[clang][ssaf] Add cpp-bounded-buffers source transformation (#210457)
Adds the first built-in transformation, `cpp-bounded-buffers`, which
rewrites buffers -- raw pointers and arrays -- into bounded types
(`bounded_ptr<T>`, `bounded_array<T, N>`) using the reachability
computed by `UnsafeBufferReachableAnalysis`.
The transformation collects every reachable pointer/array declarator and
function return declared in the translation unit, then either rewrites
it or records a SARIF note explaining why it did not. Shapes that are
not yet handled -- multi-level pointers, pointer to array, references to
pointers, multi-dimensional and unbounded arrays, multi-declarator
groups, macro-spelled declarators, and trailing return types -- are
reported rather than rewritten, and a final pass reports any reachable
entity that was neither rewritten nor otherwise accounted for. Edits are
validated and committed atomically, so a declarator whose edit cannot be
formed (such as a raw array of function pointers) is reported instead of
mangled.
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Make deprecation of ASN1_STRING_data(3) more prominent
The function has been deprecated for a long time: OpenSSL did so when
adding ASN1_STRING_get0_data in 1.1.0. beck removed it from OpenSSL 4.
The reason is that it returns a modifiable "string" and you should not
be modifying an ASN1_STRING this way. You should be using one of the
clumsy, inconvenient accessors.
schwarze merged the deprecation when adding documentation for
ASN1_STRING_get0_data() in 2018. Make this a bit more obvious: move
function to the end of the documented functions in this page, and mark
it deprecated in the SYNOPSIS, too.
I'm aware that deprecation does not work. I was hopeful to be able to
remove the function in the last cycle, but that did not happen and it
might not happen in this cycle either. It will happen at some point,
though.
Prompted by a question by brad
