ARM-software/acle

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Arm C Language Extensions (ACLE)

Stars: 129
Forks: 76
Open beginner issues: 1
Indexed issues: 26
Avg merge: 6d 16h
Merged PRs (30d): 6

Dominant language: Python
License: No license data
Last GitHub push: Sep 7, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

[BUG] Reinterpret cast (vreinterpret*) table has 10 missing rows and 2 incorrect rows for AArch32 Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

ARM-software/acle#442 · Opened Jul 13, 2026
[proposal] Stop announcing ACLE quarterly releases Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/acle#436 · Opened May 18, 2026
[BUG] Incorrect gating of FADD, FSUB (accumulate into ZA) Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 48/100

ARM-software/acle#426 · Opened Dec 18, 2025
[BUG] cmse spec: cmse_check_address_range() example impl. doesn't check for size==0 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ARM-software/acle#408 · Opened Sep 8, 2025
[proposal] Expose conditional branch upon NZC flags, with *unitary* ptest_ family functions, especially a svcount_t -> bool version Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/acle#405 · Opened Jul 15, 2025
[proposal] Add syntax for expressing priority of FMV target expressions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/acle#403 · 12 comments · Opened Jun 23, 2025
[BUG] `vand_s64` references non-existent assembly instruction Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ARM-software/acle#391 · Opened Apr 3, 2025
[proposal] Clarify that top and bottom half instruction variants refer to even-indexed and odd-indexed elements Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

ARM-software/acle#373 · Opened Dec 20, 2024
[BUG] Neon vector shift left and widen intrinsic variants with n == bit-width Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 30/100

ARM-software/acle#356 · 1 comment · Opened Nov 2, 2024
[BUG] FMV note not rendered correctly in generated specification. Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ARM-software/acle#325 · 1 comment · Opened Jun 17, 2024
[BUG] Function multiversioning FEAT conditions are incorrect Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

ARM-software/acle#320 · 2 comments · Opened Apr 25, 2024
[BUG] Internal links in CMSE's Change History are broken Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 45/100

ARM-software/acle#314 · Opened Mar 27, 2024
[BUG] Calls to non-secure function from secure code shouldn't automatically clear the LSB Open

bug

Difficulty 5/5 Over a week Newbie friendliness 35/100

ARM-software/acle#311 · 1 comment · 1 reaction · Opened Mar 21, 2024
[proposal] Clarify that AArch32 scalar polynomial types' underlying integer type is a recommendation Open

proposal

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

ARM-software/acle#305 · Opened Mar 4, 2024
[proposal] Freeze __ARM_ARCH macro up until Armv8.x-A Open

proposal

Difficulty 5/5 Over a week Newbie friendliness 35/100

ARM-software/acle#304 · Opened Mar 4, 2024
[BUG] No specification for __ARM_FEATURE_BF16 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ARM-software/acle#285 · 1 comment · Opened Jan 9, 2024
[proposal] Add vector intrinsics for loading into lane 0 and setting other lanes to 0 Open

proposal

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/acle#269 · 1 comment · Opened Jul 20, 2023
[BUG] Wrong use of architecture macros Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

ARM-software/acle#266 · 1 comment · Opened Jun 21, 2023
[BUG] running build scripts creates directories owned by root Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ARM-software/acle#263 · 1 comment · Opened Jun 1, 2023
[BUG] Missing intrinsics for AArch32 instructions VMLA.F16 and VMLS.F16 Open

proposal

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ARM-software/acle#216 · 1 comment · Opened Oct 2, 2022
[proposal] Add __ARM_FEATURE macros for more ISA features Open

proposal

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/acle#215 · 1 comment · Opened Sep 20, 2022
[BUG] neon_intrinsics: some fp16 convert intrinsics have type mismatches Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ARM-software/acle#212 · 1 comment · Opened Jul 26, 2022
[BUG] CMSE specs: Need examples using new Armv8.1-M instructions to get correct behaviour and show optimal new sequences. Open

enhancement proposal

Difficulty 4/5 3-5 days Newbie friendliness 28/100

ARM-software/acle#210 · Opened Jul 20, 2022
[BUG] poly64 load intrinsics are not available on v7 Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ARM-software/acle#209 · 1 comment · Opened Jul 20, 2022
[proposal] Make intrinsics are available regardless of feature macros Open

proposal

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/acle#200 · Opened Jun 23, 2022
[BUG] Label in acle.md Doesn't Link to Anything Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 48/100

ARM-software/acle#141 · 2 comments · Opened Dec 13, 2021

ARM-software/acle

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