[clang-tidy] Fix bugprone-bad-signal-to-kill-thread not working in clangd (#180711)
After preamble deserialization, `Token::getLiteralData()` returns
`nullptr` for macro tokens defined in headers. Fall back to
`SourceManager` to retrieve the token text from the source buffer.
Fixes https://github.com/clangd/clangd/issues/2473
[MLIR][ODS] Make dialect attribute helper member functions const (NFC) (#181111)
This commit marks member functions of dialect attribute helpers as
constant. This ensures that these helpers can be used as members of
rewrite patterns, whose `matchAndRewrite` functions are marked as const
as well.
e1000: Increase FC pause/refresh time on PCH2 and newer
This corresponds to Linux f74dc880098b4a29f76d756b888fb31d81ad9a0c
That commit does not provide any public background detail, but it's been
in use for over 5 years and corresponds to previous chip bugs w.r.t.
automatic generation of PAUSE frames.
Reviewed by: kgalazka
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D54555
e1000: Increase FC pause/refresh time on PCH2 and newer
This corresponds to Linux f74dc880098b4a29f76d756b888fb31d81ad9a0c
That commit does not provide any public background detail, but it's been
in use for over 5 years and corresponds to previous chip bugs w.r.t.
automatic generation of PAUSE frames.
Reviewed by: kgalazka
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D54555
[lldb] Fix LLDB header guards (NFC) (#181312)
Fix LLDB header guards using clang-tidy's llvm-header-guard check. A
bunch of headers have been moved or renamed and we often forget to
update the header guard.
[ELF] Add target-specific relocation scanning for x86 (#178846)
Implement scanSection/scanSectionImpl for i386 and x86-64 to
* enable devirtualization of getRelExpr calls
* eliminate abstraction overhead for PLT-to-PCRel optimization, TLS
relocations
* optimize for R_X86_64_PC32 and R_X86_64_PLT32: they consist of 95%
relocations in `lld/ELF/**/*.o` files.
* enable future optimization to remove `loc` from `getRelExpr` (only
used by X86.cpp `R_386_GOT32[X]`)
at the cost of more boilerplate.
TLS relocation handling is inlined into scanSectionImpl. Also,
- Remove getTlsGdRelaxSkip
- Replace TLS-optimization-specific expressions:
- R_RELAX_TLS_GD_TO_LE, R_RELAX_TLS_LD_TO_LE, R_RELAX_TLS_IE_TO_LE →
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[RISCV] Remove RISCVISD::WMACC*. Match during isel. NFC (#181197)
I think we may want to be able to fold ADDD nodes independent of the MUL
in some cases. For example turning NSRAI into NSRARI.
If we fold ADDD into WMACC we would need to be able to extract it again.
Keep the nodes separate avoids this.
Code change was assisted by AI.
[IndVarSimplify] Add safety check for getTruncateExpr in genLoopLimit (#181296)
getTruncateExpr may not always return a SCEVAddRecExpr when truncating
loop bounds. Add a check to verify the result type before casting, and
bail out of the transformation if the cast would be invalid.
This prevents potential crashes from invalid casts when dealing with
complex loop bounds.
Co-authored by Michael Rowan
Resolves
[https://github.com/llvm/llvm-project/issues/153090](https://github.com/llvm/llvm-project/issues/153090)
