Add configure-time choice of either port/atomics.h or <stdatomic.h> for atomic operations

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ID 7005
Title Add configure-time choice of either port/atomics.h or <stdatomic.h> for atomic operations
CI (CFBot) Summary
Stats (from CFBot) Patch version: v7, Patch count: 3, First patch: +1380−10, All patches: +3638−2360
Tags Modernization Refactoring Only
Created 2026-07-13 12:37:23
Last modified 2026-10-01 00:00:08 (22 hours ago)
Latest email 2026-09-30 15:55:24 (yesterday)
Status
PG20-3 (2026-11-01 – 2026-11-30): Needs review
PG20-2 (2026-09-01 – 2026-09-30): Moved to different CF
Target version 20
Authors Thomas Munro (macdice), Greg Burd (gregburd)
Reviewers Become reviewer
Committer
Links Git
Emails
Trying out <stdatomic.h>
First at 2025-11-10 13:17:31 by Thomas Munro <thomas.munro at gmail.com>
Latest at 2026-09-30 15:55:24 by Greg Burd <greg at burd.me>
Latest attachment (v7-0002-NOT-FOR-MERGE-Add-atomics-benchmark-harness.patch) at 2026-09-30 15:55:24 from Greg Burd <greg at burd.me>
    Attachment (v7-0002-NOT-FOR-MERGE-Add-atomics-benchmark-harness.patch) at 2026-09-30 15:55:24 from Greg Burd <greg at burd.me> (Patch: No)
    Attachment (v6-0001-Add-an-opt-in-C11-stdatomic.h-implementation-of-t.patch) at 2026-09-10 14:10:30 from "Greg Burd" <greg at burd.me> (Patch: No)
    Attachment (v5-0001-Add-an-opt-in-C11-stdatomic.h-implementation-of-t.patch) at 2026-07-29 15:17:10 from "Greg Burd" <greg at burd.me> (Patch: No)
    Attachment (v4-0001-Add-an-opt-in-C11-stdatomic.h-implementation-of-t.patch) at 2026-07-14 18:09:59 from "Greg Burd" <greg at burd.me> (Patch: No)
    Attachment (v3-0001-Enable-Visual-Studio-s-stdatomic.h-support.patch) at 2026-03-21 18:39:31 from "Greg Burd" <greg at burd.me> (Patch: Yes)
    Attachment (v20251123-0001-WIP-ARM64-MSVC-stdatomic.patch) at 2025-11-23 15:22:47 from Greg Burd <greg at burd.me> (Patch: Yes)
    Attachment (v2-0001-ci-Use-Visual-Studio-2022-for-stdatomic.h.patch) at 2025-11-13 11:35:48 from Thomas Munro <thomas.munro at gmail.com> (Patch: Yes)
    Attachment (v1-0001-Add-some-missing-include-limits.h.patch) at 2025-11-10 13:17:31 from Thomas Munro <thomas.munro at gmail.com> (Patch: Yes)
History
When Who What
2026-10-01 00:00:08 CFbot Moved from CF PG20-2 to CF PG20-3
2026-09-30 16:04:38 CFbot Patch does not need rebase anymore
2026-09-29 15:57:31 CFbot Patch needs rebase
2026-07-14 18:42:40 CFbot Patch does not need rebase anymore
2026-07-13 12:41:34 CFbot Patch needs rebase
2026-07-13 12:37:23 Greg Burd (gregburd) Attached mail thread CA+hUKGKFvu3zyvv3aaj5hHs9VtWcjFAmisOwOc7aOZNc5AF3NA@mail.gmail.com
2026-07-13 12:37:23 Greg Burd (gregburd) Created patch record
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