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Detect availability of intrinsics on intel macs just in case
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@ -243,8 +243,12 @@ init_simd(void *x) {
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PyObject *module = (PyObject*)x;
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#define A(x, val) { Py_INCREF(Py_##val); if (0 != PyModule_AddObject(module, #x, Py_##val)) return false; }
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#ifdef __APPLE__
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// Modern Apple Intel processors should all support AVX2. And simde takes care of NEON on Apple Silicon
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#ifdef __arm64__
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// simde takes care of NEON on Apple Silicon
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has_sse4_2 = true; has_avx2 = true;
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#else
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has_sse4_2 = __builtin_cpu_supports("sse4.2") != 0; has_avx2 = __builtin_cpu_supports("avx2");
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#endif
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#else
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#ifdef __aarch64__
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// no idea how to probe ARM cpu for NEON support. This file uses pretty
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@ -298,6 +298,8 @@ def env_for_python_tests(report_env: bool = False) -> Iterator[None]:
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if os.environ.get('CI') == 'true' or report_env:
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print('Using PATH in test environment:', path)
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print('Python:', python_for_type_check())
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from kitty.fast_data_types import has_avx2, has_sse4_2
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print(f'Intrinsics: {has_avx2=} {has_sse4_2=}')
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with TemporaryDirectory() as tdir, env_vars(
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HOME=tdir,
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