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Run CI tests in Intel SDE with all feature levels#197

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valadaptive merged 8 commits intolinebender:mainfrom
Shnatsel:verify-level-on-ci
Feb 6, 2026
Merged

Run CI tests in Intel SDE with all feature levels#197
valadaptive merged 8 commits intolinebender:mainfrom
Shnatsel:verify-level-on-ci

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@Shnatsel Shnatsel commented Feb 4, 2026

Runs tests in Intel Software Development Emulator, like stdarch does already, to verify we don't accidentally use an AVX2 instruction on SSE4.2 level or some such.

Part of #124

Some NEON instructions are only available on some cores, and have to checked for at runtime via CPU features, but this PR fully covers the x86 side of things: SSE2 (baseline), SSE4.2, AVX2, AVX-512.

Intel SDE is also the only way to test AVX-512 intrinsics on Github Actions hosted runners, so we'll need it for testing AVX-512 when that arrives. We could have used QEMU for the rest, but QEMU does not support AVX-512.

@Shnatsel Shnatsel marked this pull request as ready for review February 4, 2026 18:01
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Seems like a good idea; just a few minor nitpicks.

Shnatsel and others added 3 commits February 5, 2026 10:55
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Shnatsel commented Feb 5, 2026

All review comments have been resolved, is this good to go?

@valadaptive valadaptive changed the title Verify consistent SIMD levels on CI Run CI tests in Intel SDE with all feature levels Feb 6, 2026
@valadaptive valadaptive added this pull request to the merge queue Feb 6, 2026
Merged via the queue into linebender:main with commit 264ec78 Feb 6, 2026
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github-merge-queue bot pushed a commit that referenced this pull request Feb 6, 2026
Same as #197 but for ARM

Part of #124
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2 participants