embedded-5_0-branch/gcc/testsuite/gcc.target/i386/mpx/union-arg-1-nov.c

   1 /* { dg-do run } */
   2 /* { dg-options "-fcheck-pointer-bounds -mmpx" } */
   3
   4
   5 #include "mpx-check.h"
   6
   7 struct s1
   8 {
   9   union {
  10     int i1;
  11     int i3;
  12   } v;
  13   int i2;
  14   union {
  15     int *p;
  16     int p2;
  17   } u;
  18 } s1;
  19
  20 int rd (struct s1 s)
  21 {
  22   int res = s.u.p[s.v.i1 + s.i2];
  23   printf ("%d\n", res);
  24   return res;
  25 }
  26
  27 int buf[100];
  28 int buf1[10];
  29
  30 int mpx_test (int argc, const char **argv)
  31 {
  32   struct s1 s;
  33   s.u.p = buf;
  34   s.v.i1 = 50;
  35   s.i2 = -50;
  36
  37   rd (s);
  38
  39   s.v.i1 = 50;
  40   s.i2 = 49;
  41
  42   rd (s);
  43
  44   return 0;
  45 }