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__builtin_bswap16 is used without checking it is supported #85783

@jmroot

Description

@jmroot
mannequin
BPO 41617
Nosy @vstinner, @jmroot
PRs
  • bpo-41617: check for bswap builtins before using #21942
  • [3.9] bpo-41617: check for bswap builtins before using (GH-21942) #21943
  • bpo-41617: Fix pycore_bitutils.h to support clang 3.0 #21949
  • bpo-41617: Fix pycore_bitutils.h to support clang 3.0 #22042
  • [3.9] bpo-41617: Fix pycore_byteswap.h to support clang 3.0 (GH-22042) #22044
  • bpo-41617: Add _Py__has_builtin() macro #23260
  • [3.9] bpo-41617: Add _Py__has_builtin() macro (GH-23260) #23262
  • Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
    closed_at = <Date 2020-11-13.15:38:39.158>
    created_at = <Date 2020-08-23.01:02:46.962>
    labels = ['build', '3.9', '3.10']
    title = '__builtin_bswap16 is used without checking it is supported'
    updated_at = <Date 2020-12-08.13:31:40.621>
    user = 'https://github.com/jmroot'

    bugs.python.org fields:

    activity = <Date 2020-12-08.13:31:40.621>
    actor = 'vstinner'
    assignee = 'none'
    closed = True
    closed_date = <Date 2020-11-13.15:38:39.158>
    closer = 'vstinner'
    components = ['Build']
    creation = <Date 2020-08-23.01:02:46.962>
    creator = 'jmr'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 41617
    keywords = ['patch']
    message_count = 13.0
    messages = ['375806', '375856', '376193', '376199', '376204', '376205', '377149', '380889', '380894', '380900', '380902', '382731', '382733']
    nosy_count = 2.0
    nosy_names = ['vstinner', 'jmr']
    pr_nums = ['21942', '21943', '21949', '22042', '22044', '23260', '23262']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'compile error'
    url = 'https://bugs.python.org/issue41617'
    versions = ['Python 3.9', 'Python 3.10']

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      3.10only security fixes3.9 (EOL)end of lifebuildThe build process and cross-build
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