2025939 - Update WebGPU CTS to new version 9726cfe2893834c4bb42b435638c4e7362f4c258 from 2026-03-20 18:30:29

Status: RESOLVED FIXED

(Core :: Graphics: WebGPU, task, P1)

Description

[Update Bot]

This update covers 4 commits. Here are the overall diff statistics, and then the commit information.

---

dom/webgpu/tests/cts/checkout/src/webgpu/capability_info.ts | 1 +
dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/shader_io/compute_builtins.spec.ts | 22 +++--
dom/webgpu/tests/cts/checkout/src/webgpu/shader/validation/extension/readonly_and_readwrite_storage_textures.spec.ts | 38 ++++++++-
dom/webgpu/tests/cts/checkout/src/webgpu/shader/validation/shader_io/builtins.spec.ts | 6 +-
dom/webgpu/tests/cts/checkout/tools/gen_version | 2 +-
dom/webgpu/tests/cts/moz.yaml | 4 +-
testing/web-platform/mozilla/tests/webgpu/common/internal/version.js | 2 +-
testing/web-platform/mozilla/tests/webgpu/webgpu/capability_info.js | 3 +-
testing/web-platform/mozilla/tests/webgpu/webgpu/shader/execution/shader_io/compute_builtins.spec.js | 2 +
testing/web-platform/mozilla/tests/webgpu/webgpu/shader/validation/extension/readonly_and_readwrite_storage_textures.spec.js | 38 ++++++++-
testing/web-platform/mozilla/tests/webgpu/webgpu/shader/validation/shader_io/builtins.spec.js | 6 +-
11 files changed, 87 insertions(+), 37 deletions(-)

---

9726cfe2893834c4bb42b435638c4e7362f4c258 by Andy Leiserson <[e-mail]>

https://github.com/gpuweb/cts/commit/9726cfe2893834c4bb42b435638c4e7362f4c258
Authored: 2026-03-20 11:30:29 -0700
Committed: 2026-03-20 18:30:29 +0000

Consider tier1 formats language feature in RO/RW storage texture test (#4567)

Files Modified:

• src/webgpu/capability_info.ts
• src/webgpu/shader/validation/extension/readonly_and_readwrite_storage_textures.spec.ts

---

74a150396a48669e6ce76cbdb5b7817d1ba7b9b7 by Kai Ninomiya <[e-mail]>

https://github.com/gpuweb/cts/commit/74a150396a48669e6ce76cbdb5b7817d1ba7b9b7
Authored: 2026-03-20 14:04:43 -0400
Committed: 2026-03-20 14:04:43 -0400

Revert "Add README.chromium (#4616)" (#4618)

This reverts commit 857b158c374adb87187816f717090c608c89de89.

I made an error in the format of the file. Also might not end up doing this.

Files Deleted:

• README.chromium

---

857b158c374adb87187816f717090c608c89de89 by Kai Ninomiya <[e-mail]>

https://github.com/gpuweb/cts/commit/857b158c374adb87187816f717090c608c89de89
Authored: 2026-03-20 05:34:46 -0400
Committed: 2026-03-20 10:34:46 +0100

Add README.chromium (#4616)

Files Added:

• README.chromium

---

e135cc01eb4f93daceb040ad183500444033810a by Teodor Tanasoaia <[e-mail]>

https://github.com/gpuweb/cts/commit/e135cc01eb4f93daceb040ad183500444033810a
Authored: 2026-03-19 11:26:56 +0100
Committed: 2026-03-19 11:26:56 +0100

Fix linear_indexing tests (#4615)

• fix reuse_builtin_name test

• fix inputs test

• format

Files Modified:

• src/webgpu/shader/execution/shader_io/compute_builtins.spec.ts
• src/webgpu/shader/validation/shader_io/builtins.spec.ts

---

Comment 1

[Update Bot]

I've submitted a try run for this commit: https://treeherder.mozilla.org/jobs?repo=try&revision=b27056c872a6d90b68afb58403f6a030abb6aa1a

Comment 2

[Update Bot]

Attachment: Bug 2025939 - test(webgpu): update CTS to 9726cfe2893834c4bb42b435638c4e7362f4c258 r=#webgpu-reviewers

Comment 3

[Erich Gubler [:ErichDonGubler] (he/him)]

Attachment: Bug 2025939 - test(webgpu): accept observed intermittents r=#webgpu-reviewers

Comment 4

[Update Bot]

The try push is done, we found jobs with unclassified failures.

Needs Close Investigation:

• _mozilla/webgpu/cts/webgpu/shader/validation/extension/readonly_and_readwrite_storage_textures/cts.https.html?q=webgpu:shader,validation,extension,readonly_and_readwrite_storage_textures:var_decl:*
  • 12 of 12 failed on different tasks
    - test-windows11-64-24h2/debug-web-platform-tests-webgpu-1 (AX23oFGKQMm_nZLnUIJF3Q)
    - test-windows11-64-24h2/debug-web-platform-tests-webgpu-1 (W7ulyfiwS2yKm7LX0wMmhA)
    - test-windows11-64-24h2/debug-web-platform-tests-webgpu-1 (Cxz9Hpy6Q0qFx2NHIUw4_g)
    - test-macosx1470-64/debug-web-platform-tests-webgpu-7 (GLM1CdiGS8atu9-TOPPIzA)
    - test-macosx1470-64/debug-web-platform-tests-webgpu-7 (DsYsVIZlSqC3qsHhRDjUTA)
    - test-macosx1470-64/debug-web-platform-tests-webgpu-7 (Xrbym0kQQYaZ_33nAWg5Kg)
    - test-windows11-64-24h2/opt-web-platform-tests-webgpu-4 (VlAwbc6PTl6Of9jHUSwakA)
    - test-windows11-64-24h2/opt-web-platform-tests-webgpu-4 (PDr5NOe0Q1S5MBijUc1cUg)
    - test-windows11-64-24h2/opt-web-platform-tests-webgpu-4 (TuOuvbHCQ8SBvt8_yNyu-w)
    - test-macosx1470-64/opt-web-platform-tests-webgpu-5 (bR3ZVnFLQT6qCexmsS3MFA)
    - test-macosx1470-64/opt-web-platform-tests-webgpu-5 (dWljr0cFQs69FLwy1bDE_w)
    - test-macosx1470-64/opt-web-platform-tests-webgpu-5 (dvK9U2UuTBW7x7-1-gQRVw)
• test-macosx1470-64/opt-web-platform-tests-webgpu-6 - 3 of 3 failed on the same (retriggered) task (failed: Z9y25ptwSkqC8DCroEL22g, BQAM1x0ORCa-CeSt_0ESCQ, NTxOwoglSwiNI8uG0IaTmQ)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-17 - 3 of 3 failed on the same (retriggered) task (failed: PkzVKCWTQVSsENfIqbtTdA, RBFJqbx2RS2gaItLrMCpMA, Be29A1RJSVSfp1J7ShqLmw)
• test-linux2404-64/opt-web-platform-tests-webgpu-backlog-3 - 3 of 3 failed on the same (retriggered) task (failed: UuPY0Kb_Rh2oVYjIGo9yjw, NKiBqspsRkSmMl0dX8dzjg, bG74P-QGRVWHGTi6FT8DtA)
• test-linux2404-64/opt-web-platform-tests-webgpu-backlog-long-4 - 3 of 3 failed on the same (retriggered) task (failed: BJi8a5nBRWagZXznfCn_Ag, HlBw6EvQQJeJzxbejvWFng, IR50yTp5QFCa4cddga88vw)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-long-2 - 2 of 3 failed on the same (retriggered) task (failed: X8uUbTscRqeAmgGGOyLm9g, Ql-IItAJQ3GBFaQjja1IgA)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-long-3 - 3 of 3 failed on the same (retriggered) task (failed: GoIxMyarQtyzBt3hS9ecHg, cltvVv_0SwiLq16ulc5New, TzWj7k6pRc-ZsCAU3bCzow)
• test-linux2404-64/opt-web-platform-tests-webgpu-backlog-2 - 3 of 3 failed on the same (retriggered) task (failed: Hvt3VWZYRW6Swu6-uX3vaQ, Mis8apXFTEOF4Fl3OgE7ag, dSCKwv8URf2qp44SyX3TPg)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-23 - 3 of 3 failed on the same (retriggered) task (failed: cLKt-6N7THeaC3R6UV0Yww, DRfWYF08Ruq0ozi3C6dCxg, OMnZpX8wRrOiLuyov-cqDQ)
• test-windows11-64-24h2/debug-web-platform-tests-webgpu-backlog-long-6 - 3 of 3 failed on the same (retriggered) task (failed: UzfceYaYQiauiyA1z4rd9A, NPIqm_ykTQmY_B3khsWn7Q, byxvqqR-RIG3FsjLg7kMSQ)
• test-windows11-64-24h2/debug-web-platform-tests-webgpu-backlog-20 - 1 of 3 failed on the same (retriggered) task (failed: Ri2fYyVdSPmviWIM7jltIg)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-6 - 1 of 3 failed on the same (retriggered) task (failed: NPmtoWrNR3GiiArGVRl3Pg)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-21 - 1 of 3 failed on the same (retriggered) task (failed: Xv65nnKSQvu02AKNi_el8w)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-long-2 - 2 of 3 failed on the same (retriggered) task (failed: f5I0FIOgQhqaAn8tJwFdBQ, Z7Vgv94sT-uxZ348RSnp2g)
• test-linux2404-64/debug-web-platform-tests-webgpu-backlog-1 - 2 of 3 failed on the same (retriggered) task (failed: SZH_PiS0S2qpmhLzXIvEDg, CJYUAaLNRD-hN-xe_4yaSw)
• test-linux2404-64/debug-web-platform-tests-webgpu-backlog-4 - 3 of 3 failed on the same (retriggered) task (failed: BFmbbQgdTy-ab1m25PZPUQ, QJaydVd8Qta-HRxMPQAkMg, cwVPfS5dQAmRXeZ4cBx5YQ)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-long-6 - 3 of 3 failed on the same (retriggered) task (failed: X95Hs93YT7uOg_gnXT0D8w, adkT83GfSeOlJR2xE1qUBw, e8gsUuHCROa2m_iSt0GMdA)
• test-linux2404-64/debug-web-platform-tests-webgpu-backlog-2 - 3 of 3 failed on the same (retriggered) task (failed: HYtwtnEPROyNHhWImphJTw, ZgPasjGmTbi5HuRZOCXA2Q, S_8gX3ZdSkGH6qTPkkLq-A)
• test-macosx1470-64/debug-web-platform-tests-webgpu-backlog-long-2 - 2 of 3 failed on the same (retriggered) task (failed: K75YZ6b4QYiEZYP6nfzJ0g, Gb5EBUQGSqyJVt3LPjwB_A)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-17 - 3 of 3 failed on the same (retriggered) task (failed: YFpQYEzeQ3eVuM7UYT7LVg, Ac3bk5TgRm2RPv0VkFSwjw, ZQ7aGQbAQ1iR59UwWfGBEQ)
• test-linux2404-64/debug-web-platform-tests-webgpu-backlog-long-2 - 3 of 3 failed on the same (retriggered) task (failed: SH5YxhNQT169-Sp3LCHJJQ, FQRffrNtRQm_ZVt6n-8ImQ, PhO0qHRDTxOOvyd41j4Eqw)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-11 - 3 of 3 failed on the same (retriggered) task (failed: Yw_ECG8DTwS6khWpiK56Vg, RgXveXmsRX-IMEZgGhEuyg, NTmVzLqXSPSFU5ar38ldiA)
• test-windows11-64-24h2/debug-web-platform-tests-webgpu-backlog-2 - 3 of 3 failed on the same (retriggered) task (failed: Ykr5DafOQZmKukSp4Jnymg, RxuIjxN1R9yh3fpPjXj5gw, OIY7xykmQa-vL1aqSRonuw)
• test-windows11-64-24h2/debug-web-platform-tests-webgpu-backlog-long-2 - 3 of 3 failed on the same (retriggered) task (failed: IFtJBSc6RCmDPSzzZoB6qQ, MrHr7vCCTIm0s5YabUWJKA, b7kWpcVpRLyT8TKJ1jqLTA)
• test-linux2404-64/debug-web-platform-tests-webgpu-backlog-long-4 - 3 of 3 failed on the same (retriggered) task (failed: QbIs-ZETRVulfzrDYkj61Q, NDq5jnPuRE25YMoU-1UCvA, eJiBE3yoSPq1O5v4TjWT0w)
• test-windows11-64-24h2/debug-web-platform-tests-webgpu-backlog-7 - 3 of 3 failed on the same (retriggered) task (failed: OF1b_2lxTgKWeq7obKeOsw, EDXUH5e6QO-ZfMX9eLZNqQ, U5fsCtuBQtykEiq3x8KeBQ)
• test-macosx1470-64/debug-web-platform-tests-webgpu-backlog-long-3 - 1 of 3 failed on the same (retriggered) task (failed: V3DIP9RFSG2MYFYmn_cycA)
• test-macosx1470-64/debug-web-platform-tests-webgpu-backlog-17 - 3 of 3 failed on the same (retriggered) task (failed: CN9zTB0lSe6Tnek--YTUag, cG28UIC7Sha_qKOkl0W9xQ, OGkIbZy6SimgzRjvLkV3Wg)
• test-linux2404-64/debug-web-platform-tests-webgpu-backlog-3 - 3 of 3 failed on the same (retriggered) task (failed: frPTqiIcT4WOP45FbkDbYA, AJ1x0Qk0RlGsvI-xcUyJwg, Wy--t7izQHa_2pFQlokXVQ)
• test-windows11-64-24h2/debug-web-platform-tests-webgpu-backlog-long-5 - 1 of 3 failed on the same (retriggered) task (failed: UPM67Ik-Rlu7JPWk2H_Yfw)
• test-macosx1470-64/debug-web-platform-tests-webgpu-backlog-23 - 3 of 3 failed on the same (retriggered) task (failed: VOpBnkWMTzKMIbp6RpnGvg, azrImSvLT0msyvfISG2Xgg, fs30zstfSdyAlMNH22NYFw)

Known Issues:

• test-linux2404-64/opt-web-platform-tests-webgpu-backlog-long-3 - 2 of 3 failed on the same (retriggered) task (failed: QYIcqi3QQsiljg3I8uUi-g, FKRyX3Q3RQCJFYvn-eX41A)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-6 - 1 of 3 failed on the same (retriggered) task (failed: ASmG4XDsQHmUIvGER00PIg)
• test-macosx1470-64/opt-web-platform-tests-webgpu-12 - 1 of 3 failed on the same (retriggered) task (failed: Relj71gUSWiqMMAzeCrkzw)
• test-macosx1470-64/opt-web-platform-tests-webgpu-long-1 - 2 of 3 failed on the same (retriggered) task (failed: C4r5uK6MSIqVyZQhyLlT5Q, TCEdmmwRTW-x5dOu8dDwyg)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-14 - 2 of 3 failed on the same (retriggered) task (failed: eyoi7kvUTRicJGZyKd_xCA, G3AGuKLzQu2kyDp0xiB85w)
• test-macosx1470-64/opt-web-platform-tests-webgpu-backlog-5 - 1 of 3 failed on the same (retriggered) task (failed: bM_mLOeWSNGRREo2pk-zeA)
• test-linux2404-64/opt-web-platform-tests-webgpu-backlog-long-2 - 2 of 3 failed on the same (retriggered) task (failed: IdmOT1anT4SeWPZW0SS05g, U3icK80EQ4KLUJBVSJktBg)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-long-1 - 1 of 3 failed on the same (retriggered) task (failed: AL6kkb5UReexEh20QGGNEA)
• test-windows11-64-24h2/debug-web-platform-tests-webgpu-backlog-17 - 1 of 3 failed on the same (retriggered) task (failed: BDHn3yRCQc2up1Qg5FWn9w)
• test-macosx1470-64/debug-web-platform-tests-webgpu-11 - 1 of 3 failed on the same (retriggered) task (failed: fdsH07TYTBq5GrRt6LEeBQ)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-long-4 - 2 of 3 failed on the same (retriggered) task (failed: SQCZkskhTsafuiyqVldwOA, eqrQDFz3SFaza9-gn93pRg)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-long-5 - 2 of 3 failed on the same (retriggered) task (failed: A5nWTL0oSd-LVnS0Z1BIgA, S-YpTBEhSJmhuTuG2qR1Rg)
• test-windows11-64-24h2/opt-web-platform-tests-webgpu-backlog-16 - 1 of 3 failed on the same (retriggered) task (failed: Kxq4AtKJQxiBPGjj2v8Ifw)
• test-linux2404-64/debug-web-platform-tests-webgpu-backlog-long-1 - 2 of 3 failed on the same (retriggered) task (failed: F7NDft_wTfCTYhzTOxCNSQ, ZAgEZOnQSfiu9zJd_ZkcQQ)

These failures could mean that the library update changed something and caused
tests to fail. You'll need to review them yourself and decide where to go from here.

In either event, I have done all I can and you will need to take it from here. If you
don't want to land my patch, you can replicate it locally for editing with
./mach vendor dom/webgpu/tests/cts/moz.yaml

When reviewing, please note that this is external code, which needs a full and
careful inspection - not a rubberstamp.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/fdc892d11e96
https://hg.mozilla.org/integration/autoland/rev/ffda39d279c2
test(webgpu): update CTS to 9726cfe2893834c4bb42b435638c4e7362f4c258 r=webgpu-reviewers,aleiserson

Comment 6

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/ffda39d279c2