[libc++] Fix bug where `optional<T&>` couldn't be constructed from `transform()` (#203462)
- Add the proper from monadic base constructor
- Fix the constraint so it allows references.
- Add tests
[libc++] P3369R0: constexpr for `uninitialized_default_construct` (#200163)
Remarks:
- Tests also verify that `uninitialized_default_construct(_n)`
algorithms do not initialize trivially default-constructible elements
(`int` in these tests) to determined values during constant evaluation.
[GlobalISel] Fix sign-extended byte mask in lowerBswap (#199387)
The per-byte mask in `LegalizerHelper::lowerBswap` was constructed via
```
APInt APMask(SizeInBytes * 8, 0xFF << (i * 8));
```
where `0xFF << (i * 8)` is evaluated as a signed `int`. For `i*8 >= 24`
(byte-3 mask of an s64 G_BSWAP) the value `0xFF000000` does not fit in a
positive 32-bit `int`; the conversion to signed `int` is
implementation-defined under C++17 (UB under C++11, fully defined under
C++20) and on two's-complement targets produces `-16777216`. The modular
conversion to `uint64_t` in the `APInt` constructor then materializes
that negative `int` as `0xFFFFFFFFFF000000` — the intended mask was
`0x00000000FF000000`. The over-wide mask preserved bytes 4-7 of the
source where only byte 3 was intended, and the spurious bytes propagated
through the subsequent shift/OR chain.
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[VectorCombine] Use TCK_CodeSize for size-optimized functions (#202207)
VectorCombine currently uses `TCK_RecipThroughput` for all functions,
including functions optimized for size.
Select `TCK_CodeSize` when `Function::hasOptSize()` is true, covering
both `-Os` (`optsize`) and `-Oz` (`minsize`), while retaining
`TCK_RecipThroughput` for the default optimization mode.
The X86 regression test demonstrates a sign-bit reduction where the
throughput cost model folds an `or` reduction into a `umax` reduction.
The code-size model preserves the smaller form for `optsize` and
`minsize` functions, while the default function retains the existing
throughput-oriented transformation.
Fixes #153375.
[HLSL][NFC] Move HLSLBufferCopyEmitter class (#203595)
Move `HLSLBufferCopyEmitter` class to the anonymous namespace at the top
of `CGHLSLRuntime.cpp` and use it directly from
`CGHLSLRuntime::createBufferMatrixTempAddress` instead going though the
`CGHLSLRuntime::emitBufferCopy` call. No changes were done to the
`HLSLBufferCopyEmitter` code.
This is preparation for work related to resources in cbuffer structs
which will be changing the signature of `CGHLSLRuntime::emitBufferCopy`
and modifying the `HLSLBufferCopyEmitter`.
[RISCV] Add PseudoClearGPR to the special cases in RISCVInstrInfo::getInstSizeInBytes. (#203637)
This instruction is expanded to an ADDI with immediate of 0 and should
then be compressed to c.li with Zca. The compression code doesn't know
this due to the Pseudo so manually give a size of 2 for Zca.
[RISCV] Mark HW shadow stack ops as frame setup/destroy (#203362)
This change follows up on PR #200182 and addresses the issue in the
[related
comment](https://github.com/llvm/llvm-project/pull/200182#discussion_r3329197379).
It sets `FrameSetup` on SSPUSH/C_SSPUSH and `FrameDestroy` on SSPOPCHK
instructions emitted by RISCVFrameLowering for the HW shadow stack path.
The test was written manually (instead of using
`utils/update_mir_test_checks.py`) to keep it simple and avoid
unnecessary fragility.
(math/R-RPostgreSQL) Updated 0.7.7 to 0.7.8
(from ChangeLog)
2025-03-28 Tomoaki NISHIYAMA <tomoaki at sci.u-toyama.ac.jp>
* Makevars.win rely on pkgconfig to find libpq on windows envirionment.
* Drop PQprint and related routines from the attached libpq library.
2024-09-30 Tomoaki NISHIYAMA <tomoaki at sci.u-toyama.ac.jp>
* Simplify tests
2024-09-24 Tomoaki NISHIYAMA <tomoaki at sci.u-toyama.ac.jp>
* Update DESCRIPTION
2024-09-22 Tomoaki NISHIYAMA <tomoaki at sci.u-toyama.ac.jp>
* Update DESCRIPTION
