gcc/testsuite/gcc.dg/tree-ssa/pr23086.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O -fdump-tree-optimized" } */
   3
   4 extern void link_error (void);
   5 extern void abort (void);
   6
   7 int *t;
   8 int __attribute__((noinline)) g(int *a)
   9 {
  10   t = a;
  11   *a = 2;
  12 }
  13
  14 void __attribute__((noinline)) f(int *a)
  15 {
  16   int b;
  17   b = 1;
  18   g(&b);
  19   b = 2;
  20   *a = 1;
  21   if (b != 2)
  22     link_error();
  23 }
  24
  25 int main(void)
  26 {
  27   int t;
  28   f(&t);
  29   if (t != 1)
  30     abort ();
  31   return 0;
  32 }
  33
  34 /* { dg-final { scan-tree-dump-not "link_error" "optimized" } } */
  35 /* { dg-final { cleanup-tree-dump "optimized" } } */