[Clang][RISCV] packed comparison intrinsics (#203191)
Add header wrappers for pmseq/pmsne/pmslt[u]/pmsgt[u]/pmsge[u]/pmsle[u]
as element-wise vector comparisons cast to the unsigned result type.
[clang][Darwin] Disable ObjC class selector stubs when using LLD (#203388)
LLD does not support ObjC class selector stubs yet (which requires
synthesizing `objc_msgSendClass$...` stubs). This change disables
`-fobjc-msgsend-class-selector-stubs` by default when the linker is LLD.
Ref: https://github.com/llvm/llvm-project/issues/203385
[SSAF][PointerFlowExtractor] Handle empty initializer lists for scalars and unions (#201968)
Empty initializer lists for scalars and unions are corner cases that
were previously missed by the PointerFlowExtractor. This commit adds
support for these cases. Because the initializing values are implicitly
constant 0 (or nullptr), they do not bridge entity pointer levels.
rdar://178856689
---------
Co-authored-by: Balázs Benics <benicsbalazs at gmail.com>
[mlir][vector][NFC] Document and simplify vector contract reshape helpers (#200544)
Replace the bare `// TODO` placeholders above `reshapeLoad` and
`reshapeStore`
in `LowerVectorContract.cpp` with doc comments describing each helper's
semantics (the `index == -1` / `index == 0` / `index > 0` cases) and
short
before/after IR examples.
Also drop the redundant `VectorType` parameter from both helpers; the
type is
now inferred from the value operand (`val` for `reshapeLoad`, `result`
for
`reshapeStore`).
Add a LIT test that exercises the recursive `reshapeLoad` unroll path by
mapping a parallel iterator to a non-leading dimension, which falls
through
to the generic `lowerParallel` / `reshapeLoad` path.
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[SSAF][Extractor] Make hard errors in PointerFlow and UnsafeBufferUsage Extractors quiet (#201953)
Hard errors were used in extractors during development to quickly
identify unsupported language constructs. This commit converts them to
DEBUG_WITH_TYPE so that these errors are silenced in release builds.
In addition, translating unsupported language constructs now silently
results in an empty EntityPointerLevelSet. The PointerFlowExtractor will
skip empty sets for either the source or the destination when building
edges to avoid an ill-formed edge set data structure.
rdar://178747892
---------
Co-authored-by: Balázs Benics <benicsbalazs at gmail.com>
[libc++] Reimplement `optional<T&>` as a partial specialization (#201983)
- Break out the `optional<T&>` implementation that was interwoven with
the regular interface
- This should simplify the implementation
- And fix a missed added constraint for the `std::swap` specialization.
[NFC][DirectX][SPIRV] Remove helper from HLSLFrontend (#203401)
Remove helper function `removeCBufferGlobalsFromUseList` which basically
implements existing `llvm::removeFromUsedLists`. Modify the passes that
use it to call `llvm::removeFromUsedLists`.
Follow-up on
https://github.com/llvm/llvm-project/pull/202745#discussion_r3398119720
[lldb][macosx] Pare down the SimulatPlatform tests, don't run on intel (#203417)
TestSimulatorPlatform.py is flakey on the Intel Mac CI, doing a
'platform process list' and not getting a reply back. The issue is only
happening on the old Intel mac CI and not the newer arm64 CI's; it is
not important. I am skipping this test on the Intel mac CI.
I'm also removing test runs that try to build 32-bit binaries (i386,
armv7k) and the tests that would explicitly test for a legacy build load
command (e.g. `LC_VERSION_MIN_IPHONEOS`); we don't support building back
to when OSes were using those, any more.
[CIR] Lower sret returns in CallConvLowering (#201716)
Functions that return an aggregate by value classify their return as
ArgKind::Indirect, but CallConvLowering reached an errorNYI for that
case, so the whole CallConv pass refused to lower any struct-returning
function.
rewriteFunctionDefinition now recognizes an Indirect return: the wire
return type becomes void, a hidden sret pointer is prepended as block
argument 0, and every cir.return is routed through that pointer. Rather
than storing the loaded return value through the sret pointer (a
byte-copy that breaks non-trivially-copyable types -- libstdc++'s SSO
std::string keeps a _M_p pointer into its own _M_local_buf, so a
byte-copy leaves the destination aliasing the source's dying stack
storage), insertSRetStores rewires the __retval alloca to the sret
pointer so construction flows directly into the caller's slot, matching
classic CodeGen's "construct into %agg.result" pattern. CIRGen emits one
cir.load __retval / cir.return pair per return statement, all reading
the
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[libc] restrict FreeTrie to the overflow bin in TLSF
- Rename config option to USE_TRIE_FOR_OVERFLOW_BIN.
- Restrict FreeTrie usage to only the last overflow bin (bit_index == TOTAL_BITS - 1).
- Simplify exact fit search to only use FreeList, as large sizes now always go to the overflow bin.
- Simplify away index_to_range by using a fixed [0, INF) range for the overflow Trie.
- Remove index argument from Trie helper functions as they only operate on the overflow bin.
TAG=agy
CONV=fe3b4efa-7a5b-4c74-8257-e53f0d6e4850
[libc] restrict FreeTrie to the overflow bin in TLSF
- Rename config option to USE_TRIE_FOR_OVERFLOW_BIN.
- Restrict FreeTrie usage to only the last overflow bin (bit_index == TOTAL_BITS - 1).
- Simplify exact fit search to only use FreeList, as large sizes now always go to the overflow bin.
- Simplify away index_to_range by calculating overflow bin range via constexpr safe helper.
- Remove index argument from Trie helper functions as they only operate on the overflow bin.
TAG=agy
CONV=fe3b4efa-7a5b-4c74-8257-e53f0d6e4850
