[clang-tidy] Fix `readability-container-data-pointer` check (#165636)
Fix issue in readability-container-data-pointer when the container
expression is a dereference (e.g., `&(*p)[0]`). The previous fix-it
suggested `*p.data()`, which changes semantics because `.` binds tighter
than `*`. The fix now correctly suggests `(*p).data()`.
Closes [#164852](https://github.com/llvm/llvm-project/issues/164852)
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Co-authored-by: Baranov Victor <bar.victor.2002 at gmail.com>
[AArch64][SVE] Avoid movprfx by reusing register for _UNDEF pseudos.
For predicated SVE instructions where we know that the inactive
lanes are undef, it is better to pick a destination register that
is not unique. This avoids introducing a movprfx to copy a unique
register to the destination operand, which would be needed to comply
with the tied operand constraints.
For example:
%src1 = COPY $z1
%src2 = COPY $z2
%dst = SDIV_ZPZZ_S_UNDEF %p, %src1, %src2
Here it is beneficial to pick $z1 or $z2 as the destination register,
because if it would have chosen a unique register (e.g. $z0) then
the pseudo expand pass would need to insert a MOVPRFX to expand
the operation into:
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[NFCI][lldb][test][Recognizer] Fix mismatched C/C++ frontend subtitutions (#167220)
The explicit language specifications for Objective C/C++ don't seem necessary either so I've removed
them too.
I found these by using Clang frontend configuration files containing language-specific options for
both C and C++ (e.g. `-std=c2y` and `-std=c++26`).
Prior-art: 21041c9
[SelectionDAG] Fix assertion failure on inline asm register type mismatch (#166615)
Resolves https://github.com/llvm/llvm-project/issues/166057
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Co-authored-by: Phoebe Wang <phoebe.wang at intel.com>
[tools][llc] Add `--save-stats` option (#163967)
This patch adds a Clang-compatible `--save-stats` option, to provide an
easy to use way to save LLVM statistics files when working with llc on
the backend.
Like on Clang, one can specify `--save-stats`, `--save-stats=cwd`, and
`--save-stats=obj` with the same semantics and JSON format.
The implementation uses 2 methods `MaybeEnableStats` and
`MaybeSaveStats` called before and after `compileModule` respectively
that externally own the statistics related logic, while `compileModule`
is now required to return the resolved output filename via an output
param.
Note: like on Clang, the pre-existing `--stats` option is not affected.
[Vectorize] Remove a redundant declaration (NFC) (#167188)
EnableVPlanNativePath is declared in LoopVectorizationPlanner.h.
Identified with readability-redundant-declaration.
