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Apple silicon has 128 byte alignment so fix our defines to match #52996

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merged 1 commit into from
Jan 24, 2024
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Apple silicon has 128 byte alignment so fix our defines to match #52996

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4 changes: 4 additions & 0 deletions src/julia_internal.h
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Original file line number Diff line number Diff line change
Expand Up @@ -485,7 +485,11 @@ STATIC_INLINE uint8_t JL_CONST_FUNC jl_gc_szclass_align8(unsigned sz) JL_NOTSAFE
}

#define JL_SMALL_BYTE_ALIGNMENT 16
#if defined(_CPU_AARCH64_) && defined(_OS_DARWIN_) // Apple silicon has 128 cache lines
#define JL_CACHE_BYTE_ALIGNMENT 128
#else
#define JL_CACHE_BYTE_ALIGNMENT 64
#endif
// JL_HEAP_ALIGNMENT is the maximum alignment that the GC can provide
#define JL_HEAP_ALIGNMENT JL_SMALL_BYTE_ALIGNMENT
#define GC_MAX_SZCLASS (2032-sizeof(void*))
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