gcc/testsuite/gcc.dg/torture/pr107115.c

   1 /* { dg-do run } */
   2 /* PR/107115 */
   3 /* { dg-additional-options "-fno-schedule-insns -fno-schedule-insns2" } */
   4
   5 #include <stdlib.h>
   6
   7 void test1(long *p1)
   8 {
   9   p1[0] = 1;
  10 }
  11 long test2(long long *p2, int index1, int index2)
  12 {
  13   p2[index1] = 2;
  14   return p2[index2];
  15 }
  16 long test3(long *p3, int index2, long value)
  17 {
  18   p3[index2] = 3;
  19   p3[index2] = value;
  20   return p3[0];
  21 }
  22 long test4(void *p4, int index1, int index2)
  23 {
  24   test1(p4);
  25   long temp = test2(p4, index1, index2);
  26   return test3(p4, index2, temp);
  27 }
  28 long (*volatile vtest)(void *, int, int) = test4;
  29 int main(void)
  30 {
  31   void *pp = malloc(sizeof (long) + sizeof(long long));
  32   if (!pp) abort();
  33   long result = vtest(pp, 0, 0);
  34   if (*(long *)pp != 2 || result != 2)
  35     __builtin_abort ();
  36   return 0;
  37 }