allow alignment up to 64

Author: vchuravy

src/julia_internal.h

@@ -154,7 +154,7 @@ void gc_sweep_sysimg(void);
 #define JL_SMALL_BYTE_ALIGNMENT 16
 #define JL_CACHE_BYTE_ALIGNMENT 64
 // JL_HEAP_ALIGNMENT is the maximum alignment that the GC can provide
-#define JL_HEAP_ALIGNMENT JL_SMALL_BYTE_ALIGNMENT
+#define JL_HEAP_ALIGNMENT JL_CACHE_BYTE_ALIGNMENT
 #define GC_MAX_SZCLASS (2032-sizeof(void*))
 
 // pools are 16376 bytes large (GC_POOL_SZ - GC_PAGE_OFFSET)