[docs] Rewrite LLD docs to Markdown (#209897)
Tracking issue: #201242
This is a stacked PR based on #209894 , which will be a standalone
commit that renames *.rst -> *.md before this PR lands for history
preservation purposes. See the [migration guide] for more information.
[migration guide]:
https://llvm.org/docs/SphinxQuickstartTemplate.html#markdown-migration-guidelines
This was prepared with rst2myst plus LLM-assisted cleanup. I paged
through all the generated HTML looking for migration artifacts, and all
of the differences I could find appear to be formatting error
corrections. Please spot check my work and approve if it looks good.
[HLSL] Implement RWTexture2DArray (#208725)
Add front-end support for RWTexture2DArray, and update related tests to
include coverage of this resource.
Fixes #194947
---------
Co-authored-by: Tim Corringham <tcorring at amd.com>
[llvm-dwp] Fix endianness issues (#203424)
llvm-dwp fails on SystemZ, which is big-endian, as follows:
$ cat min.c
int main() {}
$ clang -g -O0 -gsplit-dwarf min.c -o min
$ llvm-dwp -e min -o min.dwp
error: compile unit exceeds .debug_info section range: 905969668 >= 58
This is because it hardcodes IsLittleEndian=true in multiple places. Fix
by forwarding endianness of the current object file.
Add a SystemZ-specific test.
Add proper big-endian support to X86/compress.test and add an
explanation regarding what the hardcoded blobs are and how they are
generated.
[lldb] Produce generic results for DWARF relational operations (#210122)
DWARF relational operations produce a generic result, whose width is the
target address size. LLDB currently assigns the C++ `bool` comparison
result directly to `Scalar`; because `Scalar` has no `bool` constructor,
this creates a 32-bit integer even on 64-bit targets.
The stricter binary operand checks added in #201288 exposed this in
x86-64 `_sigtramp` CFI. A later `DW_OP_plus` combines a 64-bit generic
address with the 32-bit relational result, so evaluation fails and
signal-frame unwinding stops. The generic-operand relaxation in #209641
does not cover this case because the relational result is narrower than
the address size.
Convert the results of `DW_OP_eq`, `DW_OP_ge`, `DW_OP_gt`, `DW_OP_le`,
`DW_OP_lt`, and `DW_OP_ne` through the existing `to_generic` helper.
## Testing
Add a unit test that evaluates each relational opcode with an 8-byte
address size and then consumes its result with `DW_OP_plus`.
[CIR] Fix use-after-free when emitting ternary with a throw-expression arm (#208850)
Fixes #208848.
When a conditional operator arm is a noreturn expression, such as
`throw`, `VisitAbstractConditionalOperator` saved an insertion point in
the empty dead-code block created after the expression. The intent was
to insert a `cir.yield` later, once the types of both arms were known.
However, `LexicalScope::cleanup()` removes that empty block when the
arm’s scope exits, leaving the deferred insertion point with a dangling
block pointer.
Avoid saving the insertion point for noreturn arms. These regions
already terminate with `cir.unreachable` and do not require a
`cir.yield`. The CIR verifier accepts ternary regions that terminate
with `cir.unreachable`.
Extended `ternary-throw.cpp` with scalar-rvalue cases covering `throw`
in either arm and in both arms. The existing tests only covered glvalue
conditionals, which take the LValue emission path and never reach this
code.
[OFFLOAD][L0] Don't return error on initImpl if library/drivers are missing (#210083)
When a Level Zero driver is not present in the environment the current
behavior makes olInit fail if the level_zero plugin is requested. This
changes the behavior to match other plugins where it doesn't fail but
return 0 supported devices.
[RISCV][P-ext] Remove redundant shuffle lowering for packed widening high-half convert. (#210128)
The more general lowerVECTOR_SHUFFLEAsPZip can handle this case.
devel/electron43: Add port: Build cross-platform desktop apps with JavaScript, HTML, and CSS
Build cross platform desktop apps with JavaScript, HTML, and CSS.
It's easier than you think.
If you can build a website, you can build a desktop app. Electron is a
framework for creating native applications with web technologies like
JavaScript, HTML, and CSS. It takes care of the hard parts so you can
focus on the core of your application.
WWW: https://electronjs.org/
[RISCV][P-ext] Make undef vectors Legal. (#210106)
Add a few additional isel patterns to avoid false dependencies. We may
want to enable the BreakFalseDep pass in the future.
[SLP]Drop nsw when shl by BW-1 is converted to mul
shl nsw X, BW-1 is valid at X = -1, but mul X, INT_MIN is not nsw-safe
there. Drop nsw on the vector mul when a shl lane with shift amount
BW-1 is unified into mul during opcode interchange.
Fixes #210093
Reviewers:
Pull Request: https://github.com/llvm/llvm-project/pull/210152
[AMDGPU] Select upper 16-bits for inline constants in packed BF16 (#209861)
From gfx1250 software programming guide, v_pk_*_bf16 instructions using
inline constants must use OPSEL to select the upper 16-bits.
Fixes: LCOMPILER-2445
