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Detect availability of intrinsics on intel macs just in case

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Kovid Goyal
2023-11-16 21:35:02 +05:30
parent 0bd67620c6
commit 8742fb8cce
2 changed files with 7 additions and 1 deletions
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6
kitty/simd-string.c
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@@ -243,8 +243,12 @@ init_simd(void *x) {
PyObject *module = (PyObject*)x;
#define A(x, val) { Py_INCREF(Py_##val); if (0 != PyModule_AddObject(module, #x, Py_##val)) return false; }
#ifdef __APPLE__
// Modern Apple Intel processors should all support AVX2. And simde takes care of NEON on Apple Silicon
#ifdef __arm64__
// simde takes care of NEON on Apple Silicon
has_sse4_2 = true; has_avx2 = true;
#else
has_sse4_2 = __builtin_cpu_supports("sse4.2") != 0; has_avx2 = __builtin_cpu_supports("avx2");
#endif
#else
#ifdef __aarch64__
// no idea how to probe ARM cpu for NEON support. This file uses pretty