gcc/testsuite/gcc.dg/torture/stackalign/alloca-6.c

   1 /* PR middle-end/45234 */
   2 /* { dg-do run { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
   3 /* { dg-additional-options "-mincoming-stack-boundary=2 -mpreferred-stack-boundary=2" } */
   4
   5 #include "check.h"
   6
   7 void
   8 __attribute__ ((noinline))
   9 bar (__float128 f)
  10 {
  11   check (&f, __alignof__(f));
  12 }
  13
  14 volatile int z = 6;
  15
  16 int
  17 main (void)
  18 {
  19   char *p = __builtin_alloca (z);
  20
  21   bar (0);
  22
  23   __builtin_strncpy (p, "good", 5);
  24   if (__builtin_strncmp (p, "good", 5) != 0)
  25     {
  26 #ifdef DEBUG
  27       p[z - 1] = '\0';
  28       printf ("Failed: %s != good\n", p);
  29 #endif
  30      abort ();
  31     }
  32
  33   return 0;
  34 }