[proposal] Clarify that AArch32 scalar polynomial types' underlying integer type is a recommendation

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
48/100
Issue type
Documentation
Clarity
Mostly clear
Activity status
Stale
Tech stack
c
Domain
compilers, documentation

Research direction

Start with the ACLE definition of AArch32 scalar polynomial types and compare its wording with the LLVM and GCC behavior described in the issue. Update the specification to make the unsigned underlying type a recommendation rather than a requirement, while preserving toolchain discretion.

Written by the indexing model from the issue text.

Description

proposal

The definition of polynomial types in AArch32 is inconsistent between LLVM, gcc and ACLE.

At this point there's potentially high risk in changing the compilers' implementation as it may cause user code breakage.

The ACLE must be modified to state that the polynomial types are recommended to be unsigned, but ultimately it is up to the toolchains' discretion whether or not to follow it.

Dominant language
Python
Stars
129
Forks
76
Avg merge
6d 16h
Merged PRs (30d)
6

Contributor guide

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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