1  /* { dg-do run { target i?86-*-* x86_64-*-* } } */
       2  /* { dg-skip-if "PR81210 sp not aligned to 16 bytes" { *-*-darwin* } } */
       3  /* { dg-options "-mgeneral-regs-only" } */
       4  
       5  #include <stddef.h>
       6  
       7  extern void exit (int);
       8  
       9  typedef unsigned int uword_t __attribute__ ((mode (__word__)));
      10  typedef int aligned __attribute__((aligned(64)));
      11  
      12  #define IP		0x12345671
      13  #define CS		0x12345672
      14  #define FLAGS		0x12345673
      15  #define SP		0x12345674
      16  #define SS		0x12345675
      17  
      18  #define STRING(x)	XSTRING(x)
      19  #define XSTRING(x)	#x
      20  #define ASMNAME(cname)  ASMNAME2 (__USER_LABEL_PREFIX__, cname)
      21  #define ASMNAME2(prefix, cname) XSTRING (prefix) cname
      22  
      23  struct interrupt_frame
      24  {
      25    uword_t ip;
      26    uword_t cs;
      27    uword_t flags;
      28    uword_t sp;
      29    uword_t ss;
      30  };
      31  
      32  int
      33  check_int (int *i, int align)
      34  {
      35    *i = 20;
      36    if ((((ptrdiff_t) i) & (align - 1)) != 0)
      37      __builtin_abort ();
      38    return *i;
      39  }
      40  
      41  __attribute__((interrupt, used))
      42  void
      43  fn (struct interrupt_frame *frame)
      44  {
      45    aligned i;
      46    if (check_int (&i, __alignof__(i)) != i)
      47      __builtin_abort ();
      48  
      49    if (IP != frame->ip)
      50      __builtin_abort ();
      51    if (CS != frame->cs)
      52      __builtin_abort ();
      53    if (FLAGS != frame->flags)
      54      __builtin_abort ();
      55    if (SP != frame->sp)
      56      __builtin_abort ();
      57    if (SS != frame->ss)
      58      __builtin_abort ();
      59  
      60    exit (0);
      61  }
      62  
      63  int
      64  main ()
      65  {
      66    asm ("push	$" STRING (SS) ";		\
      67  	push	$" STRING (SP) ";		\
      68  	push	$" STRING (FLAGS) ";		\
      69  	push	$" STRING (CS) ";		\
      70  	push	$" STRING (IP) ";		\
      71  	jmp	 " ASMNAME ("fn"));
      72    return 0;
      73  }