gcc/testsuite/gcc.dg/tree-ssa/pr70232.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -w -fdump-tree-vrp1-details -fdump-tree-vrp2-details -fdump-tree-dom2-details -fdump-tree-dom3-details" } */
   3
   4 /* All the threads found by the FSM threader should have too
   5    many statements to be profitable.  */
   6 /* { dg-final { scan-tree-dump-not "Registering FSM " "dom2"} } */
   7 /* { dg-final { scan-tree-dump-not "Registering FSM " "dom3"} } */
   8 /* { dg-final { scan-tree-dump-not "Registering FSM " "vrp1"} } */
   9 /* { dg-final { scan-tree-dump-not "Registering FSM " "vrp2"} } */
  10
  11 typedef _Bool bool;
  12 typedef unsigned char uint8_t;
  13 typedef unsigned long uint32_t;
  14 typedef unsigned long long uint64_t;
  15 typedef unsigned int size_t;
  16
  17 enum {
  18  false = 0,
  19  true = 1
  20 };
  21
  22 struct list_head {
  23  struct list_head *next, *prev;
  24 };
  25
  26
  27 extern void * memcpy(void *, const void *, size_t);
  28 extern int memcmp(const void *,const void *,size_t);
  29 extern void * memset(void *, int, size_t);
  30 extern void __memzero(void *ptr, size_t n);
  31
  32 static inline uint64_t wwn_to_uint64_t(uint8_t *wwn)
  33 {
  34  return (uint64_t)wwn[0] << 56 | (uint64_t)wwn[1] << 48 |
  35      (uint64_t)wwn[2] << 40 | (uint64_t)wwn[3] << 32 |
  36      (uint64_t)wwn[4] << 24 | (uint64_t)wwn[5] << 16 |
  37      (uint64_t)wwn[6] << 8 | (uint64_t)wwn[7];
  38 }
  39
  40 struct lpfc_name {
  41  union {
  42   uint8_t wwn[8];
  43  } u;
  44 };
  45
  46 struct lpfc_hba {
  47  uint32_t cfg_fof;
  48  uint32_t cfg_oas_flags;
  49  struct list_head luns;
  50 };
  51
  52 struct lpfc_device_id {
  53  struct lpfc_name vport_wwpn;
  54  struct lpfc_name target_wwpn;
  55  uint64_t lun;
  56 };
  57
  58 struct lpfc_device_data {
  59  struct list_head listentry;
  60  struct lpfc_device_id device_id;
  61  bool oas_enabled;
  62  bool available;
  63 };
  64
  65 bool
  66 lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
  67          struct lpfc_name *target_wwpn, uint64_t *starting_lun,
  68          struct lpfc_name *found_vport_wwpn,
  69          struct lpfc_name *found_target_wwpn,
  70          uint64_t *found_lun,
  71          uint32_t *found_lun_status)
  72 {
  73
  74  struct lpfc_device_data *lun_info;
  75  struct lpfc_device_id *device_id;
  76  uint64_t lun;
  77  bool found = false;
  78
  79  if (__builtin_expect(!!(!phba), 0) || !vport_wwpn || !target_wwpn ||
  80      !starting_lun || !found_vport_wwpn ||
  81      !found_target_wwpn || !found_lun || !found_lun_status ||
  82      (*starting_lun == -1u) ||
  83      !phba->cfg_fof)
  84   return false;
  85
  86  lun = *starting_lun;
  87  *found_lun = -1;
  88  *starting_lun = -1;
  89
  90
  91
  92  for (lun_info = ({ const typeof( ((typeof(*lun_info) *)0)->listentry ) *__mptr = ((&phba->luns)->next); (typeof(*lun_info) *)( (char *)__mptr - __builtin_offsetof(typeof(*lun_info), listentry) );}); &lun_info->listentry != (&phba->luns); lun_info = ({ const typeof( ((typeof(*(lun_info)) *)0)->listentry ) *__mptr = ((lun_info)->listentry.next); (typeof(*(lun_info)) *)( (char *)__mptr - __builtin_offsetof(typeof(*(lun_info)), listentry) );})) {
  93   if (((wwn_to_uint64_t(vport_wwpn->u.wwn) == 0) ||
  94        (memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn,
  95        sizeof(struct lpfc_name)) == 0)) &&
  96       ((wwn_to_uint64_t(target_wwpn->u.wwn) == 0) ||
  97        (memcmp(&lun_info->device_id.target_wwpn, target_wwpn,
  98        sizeof(struct lpfc_name)) == 0)) &&
  99       (lun_info->oas_enabled)) {
 100    device_id = &lun_info->device_id;
 101    if ((!found) && ((lun == 0) || (device_id->lun == lun))) {
 102     *found_lun = device_id->lun;
 103     memcpy(found_vport_wwpn, &device_id->vport_wwpn, sizeof(struct lpfc_name));
 104     memcpy(found_target_wwpn, &device_id->target_wwpn, sizeof(struct lpfc_name));
 105     if (lun_info->available)
 106      *found_lun_status = 0x01;
 107     else
 108      *found_lun_status = 0;
 109     if (phba->cfg_oas_flags & 0x01)
 110      ({ void *__p = (vport_wwpn); size_t __n = sizeof(struct lpfc_name); if ((__n) != 0) { if (__builtin_constant_p((0x0)) && (0x0) == 0) __memzero((__p),(__n)); else memset((__p),(0x0),(__n)); } (__p); })
 111                                      ;
 112     if (phba->cfg_oas_flags & 0x02)
 113      ({ void *__p = (target_wwpn); size_t __n = sizeof(struct lpfc_name); if ((__n) != 0) { if (__builtin_constant_p((0x0)) && (0x0) == 0) __memzero((__p),(__n)); else memset((__p),(0x0),(__n)); } (__p); })
 114                                      ;
 115     found = true;
 116    } else if (found) {
 117     *starting_lun = device_id->lun;
 118     memcpy(vport_wwpn, &device_id->vport_wwpn,
 119            sizeof(struct lpfc_name));
 120     memcpy(target_wwpn, &device_id->target_wwpn,
 121            sizeof(struct lpfc_name));
 122     break;
 123    }
 124   }
 125  }
 126  return found;
 127 }
 128
 129