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

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