gcc/testsuite/gcc.c-torture/execute/20020506-1.c

   1 /* Copyright (C) 2002  Free Software Foundation.
   2
   3    Test that (A & C1) op C2 optimizations behave correctly where C1 is
   4    a constant power of 2, op is == or !=, and C2 is C1 or zero.
   5
   6    Written by Roger Sayle, 5th May 2002.  */
   7
   8 #include <limits.h>
   9
  10 extern void abort (void);
  11
  12 void test1 (signed char c, int set);
  13 void test2 (unsigned char c, int set);
  14 void test3 (short s, int set);
  15 void test4 (unsigned short s, int set);
  16 void test5 (int i, int set);
  17 void test6 (unsigned int i, int set);
  18 void test7 (long long l, int set);
  19 void test8 (unsigned long long l, int set);
  20
  21 #ifndef LONG_LONG_MAX
  22 #define LONG_LONG_MAX __LONG_LONG_MAX__
  23 #endif
  24 #ifndef LONG_LONG_MIN
  25 #define LONG_LONG_MIN (-LONG_LONG_MAX-1)
  26 #endif
  27 #ifndef ULONG_LONG_MAX
  28 #define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1)
  29 #endif
  30
  31
  32 void
  33 test1 (signed char c, int set)
  34 {
  35   if ((c & (SCHAR_MAX+1)) == 0)
  36     {
  37       if (set) abort ();
  38     }
  39   else
  40     if (!set) abort ();
  41
  42   if ((c & (SCHAR_MAX+1)) != 0)
  43     {
  44       if (!set) abort ();
  45     }
  46   else
  47     if (set) abort ();
  48
  49   if ((c & (SCHAR_MAX+1)) == (SCHAR_MAX+1))
  50     {
  51       if (!set) abort ();
  52     }
  53   else
  54     if (set) abort ();
  55
  56   if ((c & (SCHAR_MAX+1)) != (SCHAR_MAX+1))
  57     {
  58       if (set) abort ();
  59     }
  60   else
  61     if (!set) abort ();
  62 }
  63
  64 void
  65 test2 (unsigned char c, int set)
  66 {
  67   if ((c & (SCHAR_MAX+1)) == 0)
  68     {
  69       if (set) abort ();
  70     }
  71   else
  72     if (!set) abort ();
  73
  74   if ((c & (SCHAR_MAX+1)) != 0)
  75     {
  76       if (!set) abort ();
  77     }
  78   else
  79     if (set) abort ();
  80
  81   if ((c & (SCHAR_MAX+1)) == (SCHAR_MAX+1))
  82     {
  83       if (!set) abort ();
  84     }
  85   else
  86     if (set) abort ();
  87
  88   if ((c & (SCHAR_MAX+1)) != (SCHAR_MAX+1))
  89     {
  90       if (set) abort ();
  91     }
  92   else
  93     if (!set) abort ();
  94 }
  95
  96 void
  97 test3 (short s, int set)
  98 {
  99   if ((s & (SHRT_MAX+1)) == 0)
 100     {
 101       if (set) abort ();
 102     }
 103   else
 104     if (!set) abort ();
 105
 106   if ((s & (SHRT_MAX+1)) != 0)
 107     {
 108       if (!set) abort ();
 109     }
 110   else
 111     if (set) abort ();
 112
 113   if ((s & (SHRT_MAX+1)) == (SHRT_MAX+1))
 114     {
 115       if (!set) abort ();
 116     }
 117   else
 118     if (set) abort ();
 119
 120   if ((s & (SHRT_MAX+1)) != (SHRT_MAX+1))
 121     {
 122       if (set) abort ();
 123     }
 124   else
 125     if (!set) abort ();
 126 }
 127
 128 void
 129 test4 (unsigned short s, int set)
 130 {
 131   if ((s & (SHRT_MAX+1)) == 0)
 132     {
 133       if (set) abort ();
 134     }
 135   else
 136     if (!set) abort ();
 137
 138   if ((s & (SHRT_MAX+1)) != 0)
 139     {
 140       if (!set) abort ();
 141     }
 142   else
 143     if (set) abort ();
 144
 145   if ((s & (SHRT_MAX+1)) == (SHRT_MAX+1))
 146     {
 147       if (!set) abort ();
 148     }
 149   else
 150     if (set) abort ();
 151
 152   if ((s & (SHRT_MAX+1)) != (SHRT_MAX+1))
 153     {
 154       if (set) abort ();
 155     }
 156   else
 157     if (!set) abort ();
 158 }
 159
 160 void
 161 test5 (int i, int set)
 162 {
 163   if ((i & (INT_MAX+1U)) == 0)
 164     {
 165       if (set) abort ();
 166     }
 167   else
 168     if (!set) abort ();
 169
 170   if ((i & (INT_MAX+1U)) != 0)
 171     {
 172       if (!set) abort ();
 173     }
 174   else
 175     if (set) abort ();
 176
 177   if ((i & (INT_MAX+1U)) == (INT_MAX+1U))
 178     {
 179       if (!set) abort ();
 180     }
 181   else
 182     if (set) abort ();
 183
 184   if ((i & (INT_MAX+1U)) != (INT_MAX+1U))
 185     {
 186       if (set) abort ();
 187     }
 188   else
 189     if (!set) abort ();
 190 }
 191
 192 void
 193 test6 (unsigned int i, int set)
 194 {
 195   if ((i & (INT_MAX+1U)) == 0)
 196     {
 197       if (set) abort ();
 198     }
 199   else
 200     if (!set) abort ();
 201
 202   if ((i & (INT_MAX+1U)) != 0)
 203     {
 204       if (!set) abort ();
 205     }
 206   else
 207     if (set) abort ();
 208
 209   if ((i & (INT_MAX+1U)) == (INT_MAX+1U))
 210     {
 211       if (!set) abort ();
 212     }
 213   else
 214     if (set) abort ();
 215
 216   if ((i & (INT_MAX+1U)) != (INT_MAX+1U))
 217     {
 218       if (set) abort ();
 219     }
 220   else
 221     if (!set) abort ();
 222 }
 223
 224 void
 225 test7 (long long l, int set)
 226 {
 227   if ((l & (LONG_LONG_MAX+1ULL)) == 0)
 228     {
 229       if (set) abort ();
 230     }
 231   else
 232     if (!set) abort ();
 233
 234   if ((l & (LONG_LONG_MAX+1ULL)) != 0)
 235     {
 236       if (!set) abort ();
 237     }
 238   else
 239     if (set) abort ();
 240
 241   if ((l & (LONG_LONG_MAX+1ULL)) == (LONG_LONG_MAX+1ULL))
 242     {
 243       if (!set) abort ();
 244     }
 245   else
 246     if (set) abort ();
 247
 248   if ((l & (LONG_LONG_MAX+1ULL)) != (LONG_LONG_MAX+1ULL))
 249     {
 250       if (set) abort ();
 251     }
 252   else
 253     if (!set) abort ();
 254 }
 255
 256 void
 257 test8 (unsigned long long l, int set)
 258 {
 259   if ((l & (LONG_LONG_MAX+1ULL)) == 0)
 260     {
 261       if (set) abort ();
 262     }
 263   else
 264     if (!set) abort ();
 265
 266   if ((l & (LONG_LONG_MAX+1ULL)) != 0)
 267     {
 268       if (!set) abort ();
 269     }
 270   else
 271     if (set) abort ();
 272
 273   if ((l & (LONG_LONG_MAX+1ULL)) == (LONG_LONG_MAX+1ULL))
 274     {
 275       if (!set) abort ();
 276     }
 277   else
 278     if (set) abort ();
 279
 280   if ((l & (LONG_LONG_MAX+1ULL)) != (LONG_LONG_MAX+1ULL))
 281     {
 282       if (set) abort ();
 283     }
 284   else
 285     if (!set) abort ();
 286 }
 287
 288 int
 289 main ()
 290 {
 291   test1 (0, 0);
 292   test1 (SCHAR_MAX, 0);
 293   test1 (SCHAR_MIN, 1);
 294   test1 (UCHAR_MAX, 1);
 295
 296   test2 (0, 0);
 297   test2 (SCHAR_MAX, 0);
 298   test2 (SCHAR_MIN, 1);
 299   test2 (UCHAR_MAX, 1);
 300
 301   test3 (0, 0);
 302   test3 (SHRT_MAX, 0);
 303   test3 (SHRT_MIN, 1);
 304   test3 (USHRT_MAX, 1);
 305
 306   test4 (0, 0);
 307   test4 (SHRT_MAX, 0);
 308   test4 (SHRT_MIN, 1);
 309   test4 (USHRT_MAX, 1);
 310
 311   test5 (0, 0);
 312   test5 (INT_MAX, 0);
 313   test5 (INT_MIN, 1);
 314   test5 (UINT_MAX, 1);
 315
 316   test6 (0, 0);
 317   test6 (INT_MAX, 0);
 318   test6 (INT_MIN, 1);
 319   test6 (UINT_MAX, 1);
 320
 321   test7 (0, 0);
 322   test7 (LONG_LONG_MAX, 0);
 323   test7 (LONG_LONG_MIN, 1);
 324   test7 (ULONG_LONG_MAX, 1);
 325
 326   test8 (0, 0);
 327   test8 (LONG_LONG_MAX, 0);
 328   test8 (LONG_LONG_MIN, 1);
 329   test8 (ULONG_LONG_MAX, 1);
 330
 331   return 0;
 332 }
 333