#ifndef JEMALLOC_INTERNAL_QUANTUM_H

#define JEMALLOC_INTERNAL_QUANTUM_H

/*

 * Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size

 * classes).

 */

#ifndef LG_QUANTUM

#  if (defined(__i386__) || defined(_M_IX86))

#    define LG_QUANTUM		4

#  endif

#  ifdef __ia64__

#    define LG_QUANTUM		4

#  endif

#  ifdef __alpha__

#    define LG_QUANTUM		4

#  endif

#  if (defined(__sparc64__) || defined(__sparcv9) || defined(__sparc_v9__))

#    define LG_QUANTUM		4

#  endif

#  if (defined(__amd64__) || defined(__x86_64__) || defined(_M_X64))

#    define LG_QUANTUM		4

#  endif

#  ifdef __arm__

#    define LG_QUANTUM		3

#  endif

#  ifdef __aarch64__

#    define LG_QUANTUM		4

#  endif

#  ifdef __hppa__

#    define LG_QUANTUM		4

#  endif

#  ifdef __m68k__

#    define LG_QUANTUM		3

#  endif

#  ifdef __mips__

#    define LG_QUANTUM		3

#  endif

#  ifdef __nios2__

#    define LG_QUANTUM		3

#  endif

#  ifdef __or1k__

#    define LG_QUANTUM		3

#  endif

#  ifdef __powerpc__

#    define LG_QUANTUM		4

#  endif

#  if defined(__riscv) || defined(__riscv__)

#    define LG_QUANTUM		4

#  endif

#  ifdef __s390__

#    define LG_QUANTUM		4

#  endif

#  if (defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || \

	defined(__SH4_SINGLE_ONLY__))

#    define LG_QUANTUM		4

#  endif

#  ifdef __tile__

#    define LG_QUANTUM		4

#  endif

#  ifdef __le32__

#    define LG_QUANTUM		4

#  endif

#  ifndef LG_QUANTUM

#    error "Unknown minimum alignment for architecture; specify via "

	 "--with-lg-quantum"

#  endif

#endif

#define QUANTUM			((size_t)(1U << LG_QUANTUM))

#define QUANTUM_MASK		(QUANTUM - 1)

/* Return the smallest quantum multiple that is >= a. */

#define QUANTUM_CEILING(a)						\

	(((a) + QUANTUM_MASK) & ~QUANTUM_MASK)

#endif /* JEMALLOC_INTERNAL_QUANTUM_H */