Add AVX-512 enablement layer - #5307
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Adds AVX512 enablement layer - runtime CPU detection, RTCD arch registration, cmake flavor/flag plumbing, empty per-target object-library hooks - and a whole program -march knob. Signed-off-by: Nithya V S <Nithya.VS@amd.com>
yunqingwang1
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August 24, 2026 16:39
yunqingwang1
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Aug 24, 2026
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Looks good - thanks.
yunqingwang1
enabled auto-merge (rebase)
August 24, 2026 16:55
yunqingwang1
disabled auto-merge
August 24, 2026 17:05
Fixes style check errors in the cmake files.
jjustiss-apple
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Aug 25, 2026
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@amd-nithyavs : I'm not seeing an option to rebase on my own from the UI. Have you disabled this option? Should be something like "Allow edit by maintainers"? |
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Adds the build-system, RTCD, and runtime-dispatch plumbing to host AVX-512 kernels in libavm. Infrastructure only — no kernels are added and nothing is
specialized toavx512, so this is a runtime no-op till follow-up kernel PRs land.Includes: runtime detection in
x86.h(XGETBV opmask/ZMM state + CPUID F/DQ/BW/VL), RTCDavx512arch (x86_64 only), CMake object-library hooks and MSVC/arch:AVX512mapping,HAVE_AVX512/ENABLE_AVX512(default ON, inherits the disable cascade), and a gtest CPU gate.Reversible via
-DENABLE_AVX512=OFF.