gcc/testsuite/gcc.dg/fixed-point/binary.c

   1 /* { dg-do run } */
   2 /* { dg-options "-std=gnu99" } */
   3
   4 /* N1169 6.5.7 - Bitwise shift operands.
   5    C99 6.5.5 Multiplicative operators.
   6    C99 6.5.6 Additive operators.
   7    C99 6.5.7 Bitwise shift operators.
   8    C99 6.5.8 Relational operators.
   9    C99 6.5.9 Equality operators.
  10    C99 6.5.16 Assignment operators.
  11
  12    Check binary operators + - * / << >> < <= >= > == != += -= *= /= <<= >>=.  */
  13
  14 extern void abort (void);
  15
  16 #define BINARY(TYPE,POSTFIX) \
  17   { TYPE a = 0.5 ## POSTFIX; \
  18     TYPE b = 0.25 ## POSTFIX; \
  19     if (a + b != 0.75 ## POSTFIX) \
  20       abort(); \
  21     if (a - b != 0.25 ## POSTFIX) \
  22       abort(); \
  23     if (a * b != 0.125 ## POSTFIX) \
  24       abort(); \
  25     if (b / a != 0.5 ## POSTFIX) \
  26       abort(); \
  27     if (b << 1 != a) \
  28       abort(); \
  29     if (a >> 1 != b) \
  30       abort(); \
  31     if (a < b != 0) \
  32       abort(); \
  33     if (a <= b != 0) \
  34       abort(); \
  35     if (a > b != 1) \
  36       abort(); \
  37     if (a >= b != 1) \
  38       abort(); \
  39     if (a == b != 0) \
  40       abort(); \
  41     if (a != b != 1) \
  42       abort(); \
  43     a += b; \
  44     if (a != 0.75 ## POSTFIX) \
  45       abort(); \
  46     a -= b; \
  47     if (a != 0.5 ## POSTFIX) \
  48       abort(); \
  49     a *= b; \
  50     if (a != 0.125 ## POSTFIX) \
  51       abort(); \
  52     a /= b; \
  53     if (a != 0.5 ## POSTFIX) \
  54       abort(); \
  55     a >>= 2; \
  56     if (a != 0.125 ## POSTFIX) \
  57       abort(); \
  58     a <<= 1; \
  59     if (a != 0.25 ## POSTFIX) \
  60       abort(); \
  61   }
  62
  63 #define FRACT_SAT_BINARY(TYPE,POSTFIX) \
  64   { TYPE a = 0.7 ## POSTFIX; \
  65     TYPE b = 0.9 ## POSTFIX; \
  66     if (a + b != 1.0 ## POSTFIX) \
  67       abort(); \
  68     a = -0.7 ## POSTFIX; \
  69     b = -0.9 ## POSTFIX; \
  70     if (a + b != -0.5 ## POSTFIX - 0.5 ## POSTFIX) \
  71       abort(); \
  72     a = 0.7 ## POSTFIX; \
  73     b = -0.9 ## POSTFIX; \
  74     if (a - b != 1.0 ## POSTFIX) \
  75       abort(); \
  76     a = -0.7 ## POSTFIX; \
  77     b = 0.9 ## POSTFIX; \
  78     if (a - b != -0.5 ## POSTFIX - 0.5 ## POSTFIX) \
  79       abort(); \
  80     a = -0.5 ## POSTFIX - 0.5 ## POSTFIX; \
  81     if (a * a != 1.0 ## POSTFIX) \
  82       abort(); \
  83     a = 0.8 ## POSTFIX; \
  84     b = 0.5 ## POSTFIX; \
  85     if (a / b != 1.0 ## POSTFIX) \
  86       abort(); \
  87     a = -0.8 ## POSTFIX; \
  88     b = 0.5 ## POSTFIX; \
  89     if (a / b != -0.5 ## POSTFIX - 0.5 ## POSTFIX) \
  90       abort(); \
  91     a = 0.1 ## POSTFIX; \
  92     if (a << 4 != 1.0 ## POSTFIX) \
  93       abort(); \
  94     a = -0.8 ## POSTFIX; \
  95     if (a << 4 != -0.5 ## POSTFIX - 0.5 ## POSTFIX) \
  96       abort(); \
  97   }
  98
  99 #define FRACT_SAT_UNS_BINARY(TYPE,POSTFIX) \
 100   { TYPE a = 0.7 ## POSTFIX; \
 101     TYPE b = 0.9 ## POSTFIX; \
 102     if (a + b != 1.0 ## POSTFIX) \
 103       abort(); \
 104     if (a - b != 0.0 ## POSTFIX) \
 105       abort(); \
 106     if (b / a != 1.0 ## POSTFIX) \
 107       abort(); \
 108     if (a << 1 != 1.0 ## POSTFIX) \
 109       abort(); \
 110   }
 111
 112 int main ()
 113 {
 114   BINARY(short _Fract, hr);
 115   BINARY(_Fract, r);
 116   BINARY(long _Fract, lr);
 117   BINARY(long long _Fract, llr);
 118   BINARY(unsigned short _Fract, uhr);
 119   BINARY(unsigned _Fract, ur);
 120   BINARY(unsigned long _Fract, ulr);
 121   BINARY(unsigned long long _Fract, ullr);
 122   BINARY(_Sat short _Fract, hr);
 123   BINARY(_Sat _Fract, r);
 124   BINARY(_Sat long _Fract, lr);
 125   BINARY(_Sat long long _Fract, llr);
 126   BINARY(_Sat unsigned short _Fract, uhr);
 127   BINARY(_Sat unsigned _Fract, ur);
 128   BINARY(_Sat unsigned long _Fract, ulr);
 129   BINARY(_Sat unsigned long long _Fract, ullr);
 130   BINARY(short _Accum, hk);
 131   BINARY(_Accum, k);
 132   BINARY(long _Accum, lk);
 133   BINARY(long long _Accum, llk);
 134   BINARY(unsigned short _Accum, uhk);
 135   BINARY(unsigned _Accum, uk);
 136   BINARY(unsigned long _Accum, ulk);
 137   BINARY(unsigned long long _Accum, ullk);
 138   BINARY(_Sat short _Accum, hk);
 139   BINARY(_Sat _Accum, k);
 140   BINARY(_Sat long _Accum, lk);
 141   BINARY(_Sat long long _Accum, llk);
 142   BINARY(_Sat unsigned short _Accum, uhk);
 143   BINARY(_Sat unsigned _Accum, uk);
 144   BINARY(_Sat unsigned long _Accum, ulk);
 145   BINARY(_Sat unsigned long long _Accum, ullk);
 146
 147   FRACT_SAT_BINARY(_Sat short _Fract, hr);
 148   FRACT_SAT_BINARY(_Sat _Fract, r);
 149   FRACT_SAT_BINARY(_Sat long _Fract, lr);
 150   FRACT_SAT_BINARY(_Sat long long _Fract, llr);
 151
 152   FRACT_SAT_UNS_BINARY(_Sat unsigned short _Fract, uhr);
 153   FRACT_SAT_UNS_BINARY(_Sat unsigned _Fract, ur);
 154   FRACT_SAT_UNS_BINARY(_Sat unsigned long _Fract, ulr);
 155   FRACT_SAT_UNS_BINARY(_Sat unsigned long long _Fract, ullr);
 156
 157   return 0;
 158 }