gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/20040629-1.c

   1 /* Test arithmetics on bitfields.  */
   2 #ifndef T
   3
   4 extern void abort (void);
   5 extern void exit (int);
   6
   7 #ifndef FIELDS1
   8 #define FIELDS1
   9 #endif
  10 #ifndef FIELDS2
  11 #define FIELDS2
  12 #endif
  13
  14 struct { FIELDS1 unsigned int i : 6, j : 11, k : 15; FIELDS2 } b;
  15 struct { FIELDS1 unsigned int i : 5, j : 1, k : 26; FIELDS2 } c;
  16 struct { FIELDS1 unsigned int i : 16, j : 8, k : 8; FIELDS2 } d;
  17
  18 unsigned int ret1 (void) { return b.i; }
  19 unsigned int ret2 (void) { return b.j; }
  20 unsigned int ret3 (void) { return b.k; }
  21 unsigned int ret4 (void) { return c.i; }
  22 unsigned int ret5 (void) { return c.j; }
  23 unsigned int ret6 (void) { return c.k; }
  24 unsigned int ret7 (void) { return d.i; }
  25 unsigned int ret8 (void) { return d.j; }
  26 unsigned int ret9 (void) { return d.k; }
  27
  28 #define T(n, pre, post, op)                                     \
  29 void fn1_##n (unsigned int x) { pre b.i post; }                 \
  30 void fn2_##n (unsigned int x) { pre b.j post; }                 \
  31 void fn3_##n (unsigned int x) { pre b.k post; }                 \
  32 void fn4_##n (unsigned int x) { pre c.i post; }                 \
  33 void fn5_##n (unsigned int x) { pre c.j post; }                 \
  34 void fn6_##n (unsigned int x) { pre c.k post; }                 \
  35 void fn7_##n (unsigned int x) { pre d.i post; }                 \
  36 void fn8_##n (unsigned int x) { pre d.j post; }                 \
  37 void fn9_##n (unsigned int x) { pre d.k post; }
  38
  39 #include "20040629-1.c"
  40 #undef T
  41
  42 #define FAIL(n, i) abort ()
  43
  44 int
  45 main (void)
  46 {
  47 #define T(n, pre, post, op)                                     \
  48   b.i = 51;                                                     \
  49   b.j = 636;                                                    \
  50   b.k = 31278;                                                  \
  51   c.i = 21;                                                     \
  52   c.j = 1;                                                      \
  53   c.k = 33554432;                                               \
  54   d.i = 26812;                                                  \
  55   d.j = 156;                                                    \
  56   d.k = 187;                                                    \
  57   fn1_##n (3);                                                  \
  58   if (ret1 () != (op (51, 3) & ((1 << 6) - 1)))                 \
  59     FAIL (n, 1);                                                \
  60   b.i = 51;                                                     \
  61   fn2_##n (251);                                                \
  62   if (ret2 () != (op (636, 251) & ((1 << 11) - 1)))             \
  63     FAIL (n, 2);                                                \
  64   b.j = 636;                                                    \
  65   fn3_##n (13279);                                              \
  66   if (ret3 () != (op (31278, 13279) & ((1 << 15) - 1)))         \
  67     FAIL (n, 3);                                                \
  68   b.j = 31278;                                                  \
  69   fn4_##n (24);                                                 \
  70   if (ret4 () != (op (21, 24) & ((1 << 5) - 1)))                \
  71     FAIL (n, 4);                                                \
  72   c.i = 21;                                                     \
  73   fn5_##n (1);                                                  \
  74   if (ret5 () != (op (1, 1) & ((1 << 1) - 1)))                  \
  75     FAIL (n, 5);                                                \
  76   c.j = 1;                                                      \
  77   fn6_##n (264151);                                             \
  78   if (ret6 () != (op (33554432, 264151) & ((1 << 26) - 1)))     \
  79     FAIL (n, 6);                                                \
  80   c.k = 33554432;                                               \
  81   fn7_##n (713);                                                \
  82   if (ret7 () != (op (26812, 713) & ((1 << 16) - 1)))           \
  83     FAIL (n, 7);                                                \
  84   d.i = 26812;                                                  \
  85   fn8_##n (17);                                                 \
  86   if (ret8 () != (op (156, 17) & ((1 << 8) - 1)))               \
  87     FAIL (n, 8);                                                \
  88   d.j = 156;                                                    \
  89   fn9_##n (199);                                                \
  90   if (ret9 () != (op (187, 199) & ((1 << 8) - 1)))              \
  91     FAIL (n, 9);                                                \
  92   d.k = 187;
  93
  94 #include "20040629-1.c"
  95 #undef T
  96   return 0;
  97 }
  98
  99 #else
 100
 101 #ifndef opadd
 102 #define opadd(x, y) (x + y)
 103 #define opsub(x, y) (x - y)
 104 #define opinc(x, y) (x + 1)
 105 #define opdec(x, y) (x - 1)
 106 #define opand(x, y) (x & y)
 107 #define opior(x, y) (x | y)
 108 #define opxor(x, y) (x ^ y)
 109 #define opdiv(x, y) (x / y)
 110 #define oprem(x, y) (x % y)
 111 #define opadd3(x, y) (x + 3)
 112 #define opsub7(x, y) (x - 7)
 113 #define opand21(x, y) (x & 21)
 114 #define opior19(x, y) (x | 19)
 115 #define opxor37(x, y) (x ^ 37)
 116 #define opdiv17(x, y) (x / 17)
 117 #define oprem19(x, y) (x % 19)
 118 #endif
 119
 120 T(1, , += x, opadd)
 121 T(2, ++, , opinc)
 122 T(3, , ++, opinc)
 123 T(4, , -= x, opsub)
 124 T(5, --, , opdec)
 125 T(6, , --, opdec)
 126 T(7, , &= x, opand)
 127 T(8, , |= x, opior)
 128 T(9, , ^= x, opxor)
 129 T(a, , /= x, opdiv)
 130 T(b, , %= x, oprem)
 131 T(c, , += 3, opadd3)
 132 T(d, , -= 7, opsub7)
 133 T(e, , &= 21, opand21)
 134 T(f, , |= 19, opior19)
 135 T(g, , ^= 37, opxor37)
 136 T(h, , /= 17, opdiv17)
 137 T(i, , %= 19, oprem19)
 138
 139 #endif