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[Draft - AMD Testing Only] Validate AMD D3D12 stability for PR #1187#1189

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alsepkow wants to merge 6 commits into
llvm:mainfrom
alsepkow:pr-1187-testing
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[Draft - AMD Testing Only] Validate AMD D3D12 stability for PR #1187#1189
alsepkow wants to merge 6 commits into
llvm:mainfrom
alsepkow:pr-1187-testing

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@alsepkow
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Do not merge. This is a temporary draft PR to test AMD D3D12 stability for #1187 by restricting CI to only the windows-amd D3D12 jobs.

Purpose

  • Re-run AMD D3D12 (\check-hlsl-d3d12\ + \check-hlsl-clang-d3d12) on the latest main + [CI] Promote NVIDIA DirectX target out of experimental #1187 changes
  • Confirm whether the previously observed crashes (6 in Debug build) still reproduce
  • Used to file two ADO bugs against AMD:
    1. Non-deterministic PSO creation crash in \�mdxc64.dll\ (5 tests, minimal repro: \Basic/simple.test)
    2. PSO crash with 16-bit types (\Feature/CBuffer/scalars-16bit.test)

CI changes (testing-only, do not merge)

\pr-matrix.yaml\ is stripped down to only:

  • \windows-amd\ × \check-hlsl-d3d12\
  • \windows-amd\ × \check-hlsl-clang-d3d12\

All other matrix entries (Intel, NVIDIA, WARP, Vulkan, MacOS, Extra) are removed for fast iteration.

Original PR

This includes the changes from #1187 (promote AMD/NVIDIA DirectX to Tier 1) plus the CI restriction commit.

alsepkow and others added 6 commits May 13, 2026 16:07
Both AMD and NVIDIA DirectX configurations have been stable and have higher pass rates than the existing Tier 1 Intel target. Promote them to Tier 1 so they run on every PR. Qualcomm and the Vulkan IHV configurations remain experimental and continue to require the 'test-all' label.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Match the tier change in docs/CI.md and pr-matrix.yaml so the README status table reflects that these targets now run on every PR.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Per Bob's review feedback, switch from listing AMD/NVIDIA D3D12 combinations via 'include' to a cross-product with 'exclude' for the AMD/NVIDIA Vulkan combinations. As future targets get promoted out of experimental, we can simply remove exclusions rather than adding inclusions.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Apply the same cross-product + exclude pattern to the experimental Exec-Tests-Extra job for consistency. As targets are promoted out of experimental, exclusions can be added here in lockstep with their removal from the Tier 1 Exec-Tests-Windows job.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This reverts commit 1eec3eb.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This change is for the draft AMD-testing PR only and should NOT be merged.
Strips the matrix down to only windows-amd x {check-hlsl-d3d12, check-hlsl-clang-d3d12}
so we can quickly iterate on AMD D3D12 stability investigation without spending
CI on Intel/NVIDIA/MacOS/WARP/Vulkan jobs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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