gcc/testsuite/gcc.dg/ipa/pr77653.c

   1 /* { dg-require-alias "" } */
   2 /* { dg-options "-O2 -fdump-ipa-icf-details"  } */
   3
   4 int a, b, c, d, e, h, i, j, k, l;
   5 const int f;
   6 static int g;
   7
   8 void fn1 (int p1)
   9 {
  10   k = d ? c % k : a * b;
  11   h &= j ^ i ^ 1;
  12 }
  13
  14 int main ()
  15 {
  16   const int *m = &f, **n = &m;
  17   l && (*n = &e);
  18   if (m != &f)
  19     __builtin_abort ();
  20   fn1 (g);
  21   return 0;
  22 }
  23
  24 /* { dg-final { scan-ipa-dump "Equal symbols: 1" "icf"  } } */
  25 /* { dg-final { scan-ipa-dump "Not unifying; alias cannot be created; target is discardable" "icf"  } } */