[mlir] adds `[[maybe_unused]]` to variables that might not be used (#131184)
This should suppress an unused variable warning that was seemingly
pervasive.
[libc] Fix non-templated uses of `printf_core::Writer` (#131149)
Commit 598e882ee88a1e3 turned `Writer` into a template, and updated most
of the call sites that use it. But not all. The alternative FP printf
system in `float_dec_converter_limited.h` wasn't updated, and neither
was `baremetal/printf.cpp` or `baremetal/vprintf.cpp`.
This patch updates `float_dec_converter_limited.h` in the same way that
the previous commit updated `float_dec_converter.h`: propagate the
templatedness through everything in the header, so that anything using a
`Writer` at all has a `write_mode` template parameter to pass on to it.
`printf.cpp` and `vprintf.cpp` are updated in the same way that the
previous commit updated `printf_core/vfprintf_internal.h`: the
`WriteBuffer` has parameter `WriteMode::FLUSH_TO_STREAM`, and `Writer`
picks it up implicitly from that.
[VPlan] Use VPInstruction for VPScalarPHIRecipe. (NFCI) (#129767)
Now that all phi nodes manage their incoming blocks through the
VPlan-predecessors, there should be no need for having a dedicate
recipe, it should be sufficient to allow PHI opcodes in VPInstruction.
Follow-ups will also migrate VPWidenPHIRecipe and possibly others,
building on top of https://github.com/llvm/llvm-project/pull/129388.
PR: https://github.com/llvm/llvm-project/pull/129767
[libc] Remove use of C++ STL features from `rpc_server.cpp` (#131169)
Summary:
This is done in preparation for making this header only so we can use it
without an object library. This will be a transient interface that
internal LLVM stuff with use. External people can use it too if they go
through the LLVM libc interface for shared stuff but there's no backward
compatibility guarantees.
Patch just cleans it up prior to the move.
[libc++] Fix ambiguous call in {ranges, std}::find (#122641)
This PR fixes an ambiguous call encountered when using the `std::ranges::find` or `std::find`
algorithms with `vector<bool>` with small `allocator_traits::size_type`s, an issue reported
in #122528. The ambiguity arises from integral promotions during the internal bitwise
arithmetic of the `find` algorithms when applied to `vector<bool>` with small integral
`size_type`s. This leads to multiple viable candidates for small integral types:
__libcpp_ctz(unsigned), __libcpp_ctz(unsigned long), and __libcpp_ctz(unsigned long long),
none of which represent a single best viable match, resulting in an ambiguous call error.
To resolve this, we propose invoking an internal function __countr_zero as a dispatcher
that directs the call to the appropriate overload of __libcpp_ctz. Necessary amendments
have also been made to __countr_zero.
[RISCV] Add Qualcomm uC Xqcili (load large immediates) extension (#130012)
The Xqcili extension includes a two instructions that load large
immediates than is available with the base RISC-V ISA.
The current spec can be found at:
https://github.com/quic/riscv-unified-db/releases/tag/Xqci-0.7.0
This patch adds assembler only support.
[libc++] Optimize ranges::rotate for vector<bool>::iterator (#121168)
This PR optimizes the performance of `std::ranges::rotate` for
`vector<bool>::iterator`. The optimization yields a performance
improvement of up to 2096x.
Closes #64038.
[flang][cuda] Allow assumed-size declaration for SHARED variable (#130833)
Avoid triggering an assertion for shared variable using the assumed-size
syntax.
```
attributes(global) subroutine sharedstar()
real, shared :: s(*) ! ok. dynamic shared memory.
end subroutine
```
[NFC] Fix formatting for #80963 (#131100)
This PR fixes formatting issues in `constructor-template.cpp` introduced
in #130866.
Changes:
- Ran `clang-format` to adhere to LLVM style guidelines.
- No functional changes.
CC: @cor3ntin @shafik
Thanks
[C2y] Claim conformance to WG14 N3482
This paper makes it a constraint violation (instead of UB) to call
va_start from a function with a fixed (non-variadic) parameter list.
This is something Clang has always diagnosed as an error.
[Support] Introduce new `AdvisoryLock` interface (#130989)
This PR abstracts the `LockFileManager` API into new `AdvisoryLock`
interface. This is so that we can create an alternative implementation
for Clang implicitly-built modules that is optimized for single-process
environment.
