[libc][strings] Refactor load_aligned for cleaner endianness handling (#186360)
Replace the explicit `if constexpr` branching for big and little
endianness with compile-time calculated shift constants `VAL_SHIFT` and
`NEXT_SHIFT`. This simplifies the logic and reduces code duplication,
relying on the compiler to constant-fold the zero shifts into no-ops.
[lldb][trace] Ensure ProcessTrace plugin can be re-registered (#188336)
Initialize makes sure that it calls RegisterPlugin only once, but
Terminate always calls UnregisterPlugin. This is a problem for tests
that call Initialize/Terminate before and after each test case: the
second case will fail because the trace plugin won't be loaded.
This fixes a test failure introduced by #187768, which adds a test case
that passes on its own but fails when run after the previous test case.
[HLSL] Implement TableGen for builtin HLSL intrinsics (#187610)
This PR introduces a TableGen-based code generation system for HLSL
intrinsic overloads as described in proposal
[[0043]](https://github.com/llvm/wg-hlsl/blob/main/proposals/0043-hlsl-intrinsic-tablegen.md)
for replacing hand-written boilerplate with declarative .td definitions.
Actual changes to `hlsl_intrinsics.h` and `hlsl_alias_intrinsics.h` to
replace handwritten HLSL intrinsic overloads with TableGen is left to
follow-up PRs.
Assisted-by: GitHub Copilot (powered by Claude Opus 4.6)
[CodeGen][NewPM] Mark ExpandPostRAPseudos as required (#188304)
We need to lower these pseudoinstructions regardless of optimization
level or we end up with instructions that we cannot print.
