gcc/testsuite/gcc.c-torture/compile/pr31797.c

   1 struct GTeth_desc
   2 {
   3   unsigned ed_cmdsts;
   4 };
   5 struct GTeth_softc
   6 {
   7   struct GTeth_desc txq_desc[32];
   8   unsigned int txq_fi;
   9   unsigned int txq_nactive;
  10 };
  11
  12 void
  13 GTeth_txq_free (struct GTeth_softc *sc)
  14 {
  15   struct GTeth_desc *txd = &sc->txq_desc[0];
  16   txd->ed_cmdsts &= ~(1U << (31));
  17 }
  18 void
  19 GTeth_txq_done (struct GTeth_softc *sc)
  20 {
  21   while (sc->txq_nactive > 0)
  22     {
  23       volatile struct GTeth_desc *txd = &sc->txq_desc[sc->txq_fi];
  24       if (txd->ed_cmdsts)
  25         {
  26           if (sc->txq_nactive == 1)
  27             return;
  28         }
  29       GTeth_txq_free (sc);
  30     }
  31 }