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Jun 21, 2025
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The comment in the test file stated that:
"SIMD is not supported on rhel8-ppc64le"

This is incorrect -- WASM SIMD support is dependent on the available instructions, not the operating system. So it is more correct to say that WASM SIMD is not supported on IBM Power8 architecture.


Currently in our CI, it just so happens that all of our rhel8-ppc64le machines are IBM Power8, while, for example, the rhel9-ppc64le machines were provisioned as IBM Power9, but AFAIK you could be running either RHEL 8/9 on either architecture (or newer).

FTR other (non-IBM) "older architectures" without WASM SIMD support include some Athlon chips (but we don't have any of those in our CI): nodejs/undici#2934 (comment)

The comment in the test file stated that:
"SIMD is not supported on rhel8-ppc64le"

This is incorrect -- WASM SIMD support is dependent on the available
instructions, not the operating system. So it is more correct to say
that WASM SIMD is not supported on IBM Power8 architecture.
@nodejs-github-bot nodejs-github-bot added esm Issues and PRs related to the ECMAScript Modules implementation. needs-ci PRs that need a full CI run. test Issues and PRs related to the tests. labels Jun 19, 2025
@richardlau richardlau added the request-ci Add this label to start a Jenkins CI on a PR. label Jun 19, 2025
@github-actions github-actions bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Jun 19, 2025
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codecov bot commented Jun 19, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.13%. Comparing base (214e4db) to head (5734b87).
Report is 14 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main   #58767   +/-   ##
=======================================
  Coverage   90.13%   90.13%           
=======================================
  Files         639      639           
  Lines      188192   188192           
  Branches    36911    36912    +1     
=======================================
+ Hits       169634   169635    +1     
- Misses      11287    11289    +2     
+ Partials     7271     7268    -3     

see 27 files with indirect coverage changes

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@richardlau richardlau added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. commit-queue Add this label to land a pull request using GitHub Actions. labels Jun 20, 2025
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@nodejs-github-bot nodejs-github-bot merged commit eafbe27 into nodejs:main Jun 21, 2025
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@richardlau richardlau deleted the simd branch June 21, 2025 18:42
RafaelGSS pushed a commit that referenced this pull request Jun 23, 2025
The comment in the test file stated that:
"SIMD is not supported on rhel8-ppc64le"

This is incorrect -- WASM SIMD support is dependent on the available
instructions, not the operating system. So it is more correct to say
that WASM SIMD is not supported on IBM Power8 architecture.

PR-URL: #58767
Reviewed-By: Ethan Arrowood <ethan@arrowood.dev>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
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