gcc/testsuite/gcc.c-torture/execute/pr40493.c

   1 extern void abort (void);
   2
   3 typedef union i386_operand_type
   4 {
   5   struct
   6     {
   7       unsigned int reg8:1;
   8       unsigned int reg16:1;
   9       unsigned int reg32:1;
  10       unsigned int reg64:1;
  11       unsigned int floatreg:1;
  12       unsigned int regmmx:1;
  13       unsigned int regxmm:1;
  14       unsigned int regymm:1;
  15       unsigned int control:1;
  16       unsigned int debug:1;
  17       unsigned int test:1;
  18       unsigned int sreg2:1;
  19       unsigned int sreg3:1;
  20       unsigned int imm1:1;
  21       unsigned int imm8:1;
  22       unsigned int imm8s:1;
  23       unsigned int imm16:1;
  24       unsigned int imm32:1;
  25       unsigned int imm32s:1;
  26       unsigned int imm64:1;
  27       unsigned int disp8:1;
  28       unsigned int disp16:1;
  29       unsigned int disp32:1;
  30       unsigned int disp32s:1;
  31       unsigned int disp64:1;
  32       unsigned int acc:1;
  33       unsigned int floatacc:1;
  34       unsigned int baseindex:1;
  35       unsigned int inoutportreg:1;
  36       unsigned int shiftcount:1;
  37       unsigned int jumpabsolute:1;
  38       unsigned int esseg:1;
  39       unsigned int regmem:1;
  40       unsigned int mem:1;
  41       unsigned int byte:1;
  42       unsigned int word:1;
  43       unsigned int dword:1;
  44       unsigned int fword:1;
  45       unsigned int qword:1;
  46       unsigned int tbyte:1;
  47       unsigned int xmmword:1;
  48       unsigned int ymmword:1;
  49       unsigned int unspecified:1;
  50       unsigned int anysize:1;
  51     } bitfield;
  52   unsigned int array[2];
  53 } i386_operand_type;
  54
  55 unsigned int x00, x01, y00, y01;
  56
  57 int main (int argc, char *argv[])
  58 {
  59   i386_operand_type a,b,c,d;
  60
  61   a.bitfield.reg16 = 1;
  62   a.bitfield.imm16 = 0;
  63   a.array[1] = 22;
  64
  65   b = a;
  66   x00 = b.array[0];
  67   x01 = b.array[1];
  68
  69   c = b;
  70   y00 = c.array[0];
  71   y01 = c.array[1];
  72
  73   d = c;
  74   if (d.bitfield.reg16 != 1)
  75     abort();
  76   if (d.bitfield.imm16 != 0)
  77     abort();
  78   if (d.array[1] != 22)
  79     abort();
  80
  81   return 0;
  82 }