gcc/testsuite/gcc.dg/torture/pr25967-1.c

   1 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
   2 /* { dg-options "-mgeneral-regs-only" } */
   3
   4 extern void exit (int);
   5
   6 typedef unsigned int uword_t __attribute__ ((mode (__word__)));
   7
   8 #define ERROR           0x12345670
   9 #define IP              0x12345671
  10 #define CS              0x12345672
  11 #define FLAGS           0x12345673
  12 #define SP              0x12345674
  13 #define SS              0x12345675
  14
  15 #define STRING(x)       XSTRING(x)
  16 #define XSTRING(x)      #x
  17 #define ASMNAME(cname)  ASMNAME2 (__USER_LABEL_PREFIX__, cname)
  18 #define ASMNAME2(prefix, cname) XSTRING (prefix) cname
  19
  20 struct interrupt_frame
  21 {
  22   uword_t ip;
  23   uword_t cs;
  24   uword_t flags;
  25   uword_t sp;
  26   uword_t ss;
  27 };
  28
  29 __attribute__((naked, used))
  30 void
  31 fn (void)
  32 {
  33   register uword_t *sp __asm__("sp");
  34   uword_t error = *sp;
  35   struct interrupt_frame *frame = (struct interrupt_frame *) (sp + 1);
  36   if (ERROR != error)           /* BREAK */
  37     __builtin_abort ();
  38   if (IP != frame->ip)
  39     __builtin_abort ();
  40   if (CS != frame->cs)
  41     __builtin_abort ();
  42   if (FLAGS != frame->flags)
  43     __builtin_abort ();
  44   if (SP != frame->sp)
  45     __builtin_abort ();
  46   if (SS != frame->ss)
  47     __builtin_abort ();
  48
  49   exit (0);
  50 }
  51
  52 int
  53 main ()
  54 {
  55   asm ("push    $" STRING (SS) ";               \
  56         push    $" STRING (SP) ";               \
  57         push    $" STRING (FLAGS) ";            \
  58         push    $" STRING (CS) ";               \
  59         push    $" STRING (IP) ";               \
  60         push    $" STRING (ERROR) ";            \
  61         jmp      " ASMNAME ("fn"));
  62   return 0;
  63 }