gcc/testsuite/gcc.dg/torture/pr55882.c

   1 /* { dg-do run } */
   2
   3 typedef enum
   4 {
   5   PVT_A = 0,
   6   PVT_B = 1,
   7   PVT_CONFIG = 2,
   8   PVT_RESERVED3 = 3,
   9 } T_CR_SELECT;
  10
  11 typedef enum
  12 {
  13   STD_ULOGIC_0 = 0,
  14   STD_ULOGIC_1 = 1,
  15 } STD_ULOGIC;
  16
  17 typedef struct
  18 {
  19   unsigned char rtp : 3;
  20   unsigned char rtn : 3;
  21 } C;
  22
  23 typedef struct
  24 {
  25   unsigned char nd;
  26   unsigned char pd;
  27   unsigned char rtn;
  28   unsigned char rtp;
  29 } A;
  30
  31 typedef struct
  32 {
  33   unsigned short reserved : 14;
  34   unsigned char Z_rx_enable : 2;
  35   A pvt;
  36 } B;
  37
  38 typedef struct
  39 {
  40   B cr_dsclk_q3;
  41   B cr_data_q3;
  42   B cr_addr_q3;
  43   B cr_cmd_q3;
  44   B cr_pres_q3;
  45   C cr_vref_q3[6];
  46   unsigned char pres_disable;
  47   unsigned char pres_drive_high;
  48   unsigned char c_enab_120;
  49   STD_ULOGIC clk_tximp;
  50   STD_ULOGIC dqs_tximp;
  51   STD_ULOGIC cmd_tximp;
  52   STD_ULOGIC data_tximp;
  53   STD_ULOGIC dqs_rxterm;
  54   STD_ULOGIC data_rxterm;
  55   T_CR_SELECT cr_clk_sel;
  56   unsigned char cr_clk : 5;
  57   T_CR_SELECT cr_dsclk_odd_sel;
  58   unsigned char cr_dsclk_odd : 5;
  59   T_CR_SELECT cr_dsclk_even_sel;
  60   unsigned char cr_dsclk_even : 5;
  61   T_CR_SELECT cr_data_sel;
  62   unsigned char cr_data : 5;
  63   T_CR_SELECT cr_vref_sel;
  64   unsigned char cr_vref : 5;
  65   T_CR_SELECT cr_others_sel;
  66   unsigned char cr_others : 5;
  67 } CONFIG;
  68
  69 typedef struct
  70 {
  71   unsigned char enable_monitor;
  72   unsigned short step_out_pointer : 12;
  73   unsigned short hold_out_pointer : 12;
  74   unsigned short enable_wr_dqs : 12;
  75   unsigned short use_alt_rd_dqs : 12;
  76   CONFIG io_buf;
  77 } mystruct;
  78
  79 unsigned short __attribute__((noinline,noclone))
  80 testfunction(unsigned i)
  81 {
  82   mystruct dmfe[8];
  83   dmfe[0].use_alt_rd_dqs = 1;
  84   dmfe[i].use_alt_rd_dqs = 0;
  85   return dmfe[0].use_alt_rd_dqs;
  86 }
  87
  88 extern void abort (void);
  89 int main ()
  90 {
  91   if (testfunction(0) != 0)
  92     abort ();
  93   return 0;
  94 }