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GeezerVison is showing github.com — [3.14] gh-130317: Fix SNaN broken tests on HP PA RISC (GH-140452) by miss-islington · Pull Request #140467 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Oct 22, 2025

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While looking at GH-140028, I found some unrelated test regressions in the
3.14 cycle. These seem to all come from GH-130317. From what I can tell,
that made Python more correct than it was before. According to 0, HP PA
RISC uses 1 for SNaN and thus a 0 for QNaN.

Co-authored-by: Stefano Rivera [email protected]

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@stefanor @miss-islington
pythongh-130317: Fix SNaN broken tests on HP PA RISC (pythonGH-140452)
fe6f7fd 
While looking at pythonGH-140028, I found some unrelated test regressions in the
3.14 cycle. These seem to all come from pythonGH-130317. From what I can tell,
that made Python more correct than it was before. According to [0], HP PA
RISC uses 1 for SNaN and thus a 0 for QNaN.

[0]: https://grouper.ieee.org/groups/1788/email/msg03272.html
(cherry picked from commit 76fea55)

Co-authored-by: Stefano Rivera <[email protected]>
@bedevere-app bedevere-app Bot added the tests Tests in the Lib/test dir label Oct 22, 2025
@bedevere-app bedevere-app Bot mentioned this pull request Oct 22, 2025
struct (un)packing of half-precision nan floats is non-invertible #130317
Closed
@bedevere-app bedevere-app Bot added awaiting review skip news labels Oct 22, 2025
@bedevere-app bedevere-app Bot mentioned this pull request Oct 22, 2025
gh-130317: Fix SNaN broken tests on HP PA RISC #140452
Merged
@vstinner
vstinner enabled auto-merge (squash) October 22, 2025 16:36
@vstinner
vstinner merged commit 853e5d9 into python:3.14 Oct 22, 2025
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@bedevere-app bedevere-app Bot removed the awaiting review label Oct 22, 2025
@miss-islington
miss-islington deleted the backport-76fea55-3.14 branch January 2, 2026 17:09
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3 participants

@miss-islington @vstinner @stefanor
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