ount.

   On i386, shifts do truncate the count.  But bit test instructions
   take the modulo of the bit offset operand.  */

/* #define SHIFT_COUNT_TRUNCATED */

/* A macro to update M and UNSIGNEDP when an object whose type is
   TYPE and which has the specified mode and signedness is to be
   stored in a register.  This macro is only called when TYPE is a
   scalar type.

   On i386 it is sometimes useful to promote HImode and QImode
   quantities to SImode.  The choice depends on target type.  */

#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) 		\
do {							\
  if (((MODE) == HImode && TARGET_PROMOTE_HI_REGS)	\
      || ((MODE) == QImode && TARGET_PROMOTE_QI_REGS))	\
    (MODE) = SImode;					\
} while (0)

/* Specify the machine mode that pointers have.
   After generation of rtl, the compiler makes no further distinction
   between pointers and any other objects of this machine mode.  */
#define Pmode (ix86_pmode == PMODE_DI ? DImode : SImode)

/* Supply a definition of STACK_SAVEAREA_MODE for emit_stack_save.
   NONLOCAL needs space to save both shadow stack and stack pointers.

   FIXME: We only need to save and restore stack pointer in ptr_mode.
   But expand_builtin_setjmp_setup and expand_builtin_longjmp use Pmode
   to save and restore stack pointer.  See
   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84150
 */
#define STACK_SAVEAREA_MODE(LEVEL)			\
  ((LEVEL) == SAVE_NONLOCAL ? (TARGET_64BIT ? TImode : DImode) : Pmode)

/* Specify the machine_mode of the size increment
   operand of an 'allocate_stack' named pattern.  */
#define STACK_SIZE_MODE Pmode

/* A C expression whose value is zero if pointers that need to be extended
   from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
   greater then zero if they are zero-extended and less then zero if the
   ptr_extend instruction should be used.  */

#define POINTERS_EXTEND_UNSIGNED 1

/* A function address in a call instruction
   is a byte address (for indexing purposes)
   so give the MEM rtx a byte's mode.  */
#define FUNCTION_MODE QImode