xdfnx-dev
3d5f42865f
Adapt official LLVM 7a0829e41228 to the pinned LLVM 22 parser and ELF structures. Apply and audit the complete source delta before building, export its provenance, and package the source patch. Add 33 offline public PTX compilation checks across all eleven GPU targets without hardware execution. Preserve strict arithmetic and document RX9070XT K/M regressions.
1.5 KiB
LLVM source patches for the Windows compiler
Base: ZLUDA's LLVM submodule ff4dc1f7c9e1c64d4d69e40f4ed30c2280a96dfd
(LLVM 22). build-zluda-llvm.ps1 applies these patches idempotently before
building. ZLUDA's parent source patches remain in patches/zluda.
0001-backport-gfx1154.patch adapts official LLVM
7a0829e41228
to the older parser/ELF structures. It adds actual gfx1154 processor features,
ISA 11.5.4, parser identity and ELF machine 0x57. It does not map gfx1154 onto
another CPU, patch binary headers or alter existing processors' features.
LLVM's gfx1154 uses FeatureISAVersion11_5_Common and the GFX11 speed model.
LLVM code remains Apache-2.0 WITH LLVM-exception (see the dependency license).
The prior offline compiler aborts on a public PTX pattern for gfx1154 with
unrecognized-processor diagnostics and exit 0xC0000409. After rebuilding
LLVM, rebuild/relink ZLUDA and its offline emitter; changing native Clang
objects alone cannot fix the translated PTX path. Run
scripts/windows/test-zluda-target-compilation.ps1 to compile the public
Driver API pattern and FP16 MMA fixtures (strict/reference and WMMA modes)
for every target without GPU work. All 33 compilations pass with correct ELF
targets and wave32. Strict gfx12 F16 reference retains its prior FP64 helper;
WMMA mode here is a compilation check, not a default arithmetic change.
This checks code generation and ELF identity, not hardware execution/numerics.