gcc/testsuite/gcc.dg/tree-ssa/pr23848-1.c

   1 /* PR middle-end/23848 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-optimized" } */
   4
   5 void bar1 (char *, int);
   6 void foo1 (int size)
   7 {
   8   char temp[size];
   9   temp[size-1] = '\0';
  10   bar1 (temp, size);
  11 }
  12
  13 void bar2 (char *, char *, char *, char *, int);
  14 void foo2 (int size)
  15 {
  16   char temp[size];
  17   temp[size-1] = '\0';
  18   {
  19     char temp2[size];
  20     {
  21       char temp3[size];
  22       {
  23         char temp4[size];
  24         bar2 (temp, temp2, temp3, temp4, size);
  25       }
  26     }
  27   }
  28 }
  29
  30 /* { dg-final { scan-tree-dump-not "__builtin_stack_save" "optimized"} } */
  31 /* { dg-final { scan-tree-dump-not "__builtin_stack_restore" "optimized"} } */
  32 /* { dg-final { cleanup-tree-dump "optimized" } } */