gcc/testsuite/gcc.dg/ipa/ipa-icf-27.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-ipa-icf -fno-inline"  } */
   3
   4 void destroy (void)
   5 {
   6   __asm__ __volatile__ ("" : : : "memory");
   7 }
   8
   9 void remove (void)
  10 {
  11   __asm__ __volatile__ ("" : : : "memory");
  12 }
  13
  14 void remove2 (void)
  15 {
  16   __asm__ __volatile__ ("" : : : );
  17 }
  18
  19 int main()
  20 {
  21   destroy ();
  22   remove ();
  23   remove2 ();
  24
  25   return 0;
  26 }
  27
  28 /* { dg-final { scan-ipa-dump "Semantic equality hit:remove->destroy" "icf"  } } */
  29 /* { dg-final { scan-ipa-dump "Equal symbols: 1" "icf"  } } */
  30 /* { dg-final { cleanup-ipa-dump "icf" } } */