hardware_oracle_compare started compare_results.py in a new Python
process for every case, 77 interpreter starts. That takes 5-16 s
on the macOS relinker runners against the test's 20 s timeout, and the
x86_64 job timed out at 20.14 s in run 39103831688 on a pull request
that does not touch the oracle tools.
Call compare_results.main() in the test process with sys.argv patched
and stdout and stderr captured, and keep the identical and differing
cases as real subprocesses so the exit status of the script entry point
stays covered. The test drops to under 1 s.
LLD built for a MinGW host runs the COFF linker when ld.lld gets no -m option,
so it rejects the AMDGPU object with "unknown file type" and the
hardware_oracle test fails on Windows with WinLibs LLVM in PATH. Passing
-m elf64_amdgpu selects the ELF linker on every host.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The template allocated a fixed 4 KiB of LDS, so kernels with immediate
offsets past it could not run. --lds (Python lds) sets the group segment
size in bytes, up to 64 KiB, with 4096 as the default.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
clang assembled every body as wave32, so a --wave64 body that used vcc
or an SGPR pair as a condition failed with "operands are not valid for
this GPU or mode". Pass -mwavefrontsize64 on wave64 runs.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
BREAKING CHANGE: CLI and Python callers must supply all seven float
controls. Add clamp, rounding and FP16 overflow settings so hardware
measurements cannot silently use an unintended mode.
Refs #981
Adrià