gcc/testsuite/gcc.dg/tree-ssa/pr23848-3.c

   1 /* PR middle-end/23848 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-optimized" } */
   4 /* { dg-require-effective-target alloca } */
   5
   6 void bar (int, char *, char *, char *, char *, int);
   7 void foo (int size)
   8 {
   9   int i;
  10   for (i = 0; i < size; i++)
  11     {
  12       char temp[size];
  13       temp[size-1] = '\0';
  14       {
  15         char temp2[size];
  16         {
  17           char temp3[size];
  18           {
  19             char temp4[size];
  20             bar (i, temp, temp2, temp3, temp4, size);
  21           }
  22         }
  23       }
  24     }
  25 }
  26
  27 /* { dg-final { scan-tree-dump-times "__builtin_stack_save" 1 "optimized"} } */
  28 /* { dg-final { scan-tree-dump-times "__builtin_stack_restore" 1 "optimized"} } */