[web] remove the unhelpful "Unknown CPU vendor" warning.#27399
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Pull request overview
This PR removes the confusing "Unknown CPU vendor" warning for WebAssembly builds where CPU information is intentionally not exposed in browser environments.
Changes:
- Skip VendorInfoInit() call on WebAssembly platforms to avoid the warning
- Initialize vendor_id_ to 0 to ensure proper default value when VendorInfoInit is not called
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| onnxruntime/core/common/cpuid_info.h | Add explicit initialization of vendor_id_ to 0 to ensure defined behavior on WebAssembly |
| onnxruntime/core/common/cpuid_info.cc | Conditionally skip VendorInfoInit() on wasm builds to prevent warning about unknown CPU vendor |
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guschmue
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Feb 26, 2026
tianleiwu
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Feb 27, 2026
### Description remove the "Unknown CPU vendor" warning for webassembly. CPU info is not supposed to expose in a browser environment, so it is expected to have no CPU info at runtime. Disable the confusing warning message for WebAssembly. ### Motivation and Context fixes #27336
tianleiwu
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Feb 27, 2026
This cherry-picks the following commits for the release: | Commit ID | PR Number | Commit Title | |-----------|-----------|-------------| | decd177 | #27090 | Fix GatherND division by zero when batch dimensions mismatch | | 55f8234 | #27360 | Fix QMoE CPU Operator | | df9146f | #27403 | [MLAS] Adding DynamicQGemm function pointers and ukernel interface | | 0f93853 | #27318 | [js/web] Use embedded WASM module in Blob URL workers when wasmBinary is provided | | b2a6e69 | #27364 | QMoE CPU Performance Update (Up to 4x on 4-bit) | | f501e1d | #27413 | Fix refcount bug in map input conversion that caused shutdown segfault | | b32b205 | #27421 | Fix error where bytes is not assigned for dynamic qgemm pack b size | | 426b006 | #27397 | Fix DllImportResolver | | 0982844 | #27412 | MatmulNBits prepacking scales fix | | 9afb0d2 | #27430 | Fix validation for external data paths for models loaded from bytes | | 71d2cd0 | #27401 | Enable Python 3.14 CI and Upgrade Dependencies | | 79e0676 | #27419 | fix: out of bounds access for resize operation | | 82eb99c | #27459 | Fix SkipLayerNorm fusion incorrectly applied when gamma/beta are not 1D | | 355278a | #27444 | Fix GatherCopyData Integer Truncation Leading to Heap Out-of-Bounds Read/Write | | cf96123 | #27411 | [web] fix usage of wasmBinary together with a blob URL for .mjs | | 1131a86 | #27399 | [web] remove the unhelpful "Unknown CPU vendor" warning. | | ffbbc4f | #27316 | Build Windows ARM64X binaries as part of packaging pipeline | --------- Signed-off-by: Jonathan Clohessy <Jonathan.Clohessy@arm.com> Co-authored-by: patryk-kaiser-ARM <patryk.kaiser@arm.com> Co-authored-by: don <70039285+0-don@users.noreply.github.com> Co-authored-by: Jonathan Clohessy <jonathan.clohessy@arm.com> Co-authored-by: Hariharan Seshadri <shariharan91@gmail.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Adrian Lizarraga <adlizarraga@microsoft.com> Co-authored-by: Lukas Folle <126877803+lukas-folle-snkeos@users.noreply.github.com> Co-authored-by: Chi Lo <54722500+chilo-ms@users.noreply.github.com> Co-authored-by: Yulong Wang <7679871+fs-eire@users.noreply.github.com> Co-authored-by: Chaya <cha182350@gmail.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com> Co-authored-by: Erik <erscor@microsoft.com> Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>
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deps(nuget): Bump the microsoft-packages group with 8 updates
Ellerbach/azure-ai-search-simulator#76
Closed
This was referenced Mar 23, 2026
deps(nuget): Bump the microsoft-packages group with 8 updates
Ellerbach/azure-ai-search-simulator#80
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This was referenced Mar 30, 2026
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Description
remove the "Unknown CPU vendor" warning for webassembly.
CPU info is not supposed to expose in a browser environment, so it is expected to have no CPU info at runtime. Disable the confusing warning message for WebAssembly.
Motivation and Context
fixes #27336