gcc/testsuite/gcc.dg/uninit-pr90394.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fno-tree-fre -Wuninitialized" } */
   3 int pz;
   4 int zi;
   5
   6 void
   7 uk (void)
   8 {
   9   int th = 1;
  10   int *gw = &zi;
  11
  12   for (zi = 0; zi < 2; ++zi)
  13     {
  14       int a2 = 0;
  15
  16       for (zi = 0; zi < 1; ++zi)
  17         {
  18           th = a2 * 2;
  19
  20  og:
  21           for (pz = 0; pz < 1; ++pz)
  22             {
  23             }
  24         }
  25
  26       pz = !!*gw ? *gw : pz;
  27       pz = (!!th ? (pz & 1) : 0);
  28       if (pz == 0)
  29         ++a2;
  30     }
  31
  32   goto og;
  33 }