libgomp/testsuite/libgomp.c/loop-6.c

   1 /* { dg-do run } */
   2
   3 #include <omp.h>
   4
   5 extern void abort (void);
   6
   7 #define LLONG_MAX __LONG_LONG_MAX__
   8 #define ULLONG_MAX (LLONG_MAX * 2ULL + 1)
   9 #define INT_MAX __INT_MAX__
  10
  11 int arr[6 * 5];
  12
  13 void
  14 set (int loopidx, int idx)
  15 {
  16 #pragma omp atomic
  17   arr[loopidx * 5 + idx]++;
  18 }
  19
  20 #define check(var, val, loopidx, idx) \
  21   if (var == (val)) set (loopidx, idx); else
  22 #define test(loopidx, count) \
  23   for (idx = 0; idx < 5; idx++) \
  24     if (arr[loopidx * 5 + idx] != idx < count) \
  25       abort (); \
  26     else \
  27       arr[loopidx * 5 + idx] = 0
  28
  29 int
  30 test1 (void)
  31 {
  32   int e = 0, idx;
  33
  34 #pragma omp parallel reduction(+:e)
  35   {
  36     long long i;
  37     unsigned long long j;
  38     #pragma omp for schedule(dynamic,1) nowait
  39     for (i = LLONG_MAX - 30001; i <= LLONG_MAX - 10001; i += 10000)
  40       {
  41         check (i, LLONG_MAX - 30001, 0, 0)
  42         check (i, LLONG_MAX - 20001, 0, 1)
  43         check (i, LLONG_MAX - 10001, 0, 2)
  44         e = 1;
  45       }
  46     #pragma omp for schedule(dynamic,1) nowait
  47     for (i = -LLONG_MAX + 30000; i >= -LLONG_MAX + 10000; i -= 10000)
  48       {
  49         check (i, -LLONG_MAX + 30000, 1, 0)
  50         check (i, -LLONG_MAX + 20000, 1, 1)
  51         check (i, -LLONG_MAX + 10000, 1, 2)
  52         e = 1;
  53       }
  54     #pragma omp for schedule(dynamic,1) nowait
  55     for (j = 20; j <= LLONG_MAX - 70; j += LLONG_MAX + 50ULL)
  56       {
  57         check (j, 20, 2, 0)
  58         e = 1;
  59       }
  60     #pragma omp for schedule(dynamic,1) nowait
  61     for (j = ULLONG_MAX - 3; j >= LLONG_MAX + 70ULL; j -= LLONG_MAX + 50ULL)
  62       {
  63         check (j, ULLONG_MAX - 3, 3, 0)
  64         e = 1;
  65       }
  66     #pragma omp for schedule(dynamic,1) nowait
  67     for (j = LLONG_MAX - 20000ULL; j <= LLONG_MAX + 10000ULL; j += 10000ULL)
  68       {
  69         check (j, LLONG_MAX - 20000ULL, 4, 0)
  70         check (j, LLONG_MAX - 10000ULL, 4, 1)
  71         check (j, LLONG_MAX, 4, 2)
  72         check (j, LLONG_MAX + 10000ULL, 4, 3)
  73         e = 1;
  74       }
  75     #pragma omp for schedule(dynamic,1) nowait
  76     for (i = -3LL * INT_MAX - 20000LL; i <= INT_MAX + 10000LL; i += INT_MAX + 200LL)
  77       {
  78         check (i, -3LL * INT_MAX - 20000LL, 5, 0)
  79         check (i, -2LL * INT_MAX - 20000LL + 200LL, 5, 1)
  80         check (i, -INT_MAX - 20000LL + 400LL, 5, 2)
  81         check (i, -20000LL + 600LL, 5, 3)
  82         check (i, INT_MAX - 20000LL + 800LL, 5, 4)
  83         e = 1;
  84       }
  85   }
  86   if (e)
  87     abort ();
  88   test (0, 3);
  89   test (1, 3);
  90   test (2, 1);
  91   test (3, 1);
  92   test (4, 4);
  93   test (5, 5);
  94   return 0;
  95 }
  96
  97 int
  98 test2 (void)
  99 {
 100   int e = 0, idx;
 101
 102 #pragma omp parallel reduction(+:e)
 103   {
 104     long long i;
 105     unsigned long long j;
 106     #pragma omp for schedule(guided,1) nowait
 107     for (i = LLONG_MAX - 30001; i <= LLONG_MAX - 10001; i += 10000)
 108       {
 109         check (i, LLONG_MAX - 30001, 0, 0)
 110         check (i, LLONG_MAX - 20001, 0, 1)
 111         check (i, LLONG_MAX - 10001, 0, 2)
 112         e = 1;
 113       }
 114     #pragma omp for schedule(guided,1) nowait
 115     for (i = -LLONG_MAX + 30000; i >= -LLONG_MAX + 10000; i -= 10000)
 116       {
 117         check (i, -LLONG_MAX + 30000, 1, 0)
 118         check (i, -LLONG_MAX + 20000, 1, 1)
 119         check (i, -LLONG_MAX + 10000, 1, 2)
 120         e = 1;
 121       }
 122     #pragma omp for schedule(guided,1) nowait
 123     for (j = 20; j <= LLONG_MAX - 70; j += LLONG_MAX + 50ULL)
 124       {
 125         check (j, 20, 2, 0)
 126         e = 1;
 127       }
 128     #pragma omp for schedule(guided,1) nowait
 129     for (j = ULLONG_MAX - 3; j >= LLONG_MAX + 70ULL; j -= LLONG_MAX + 50ULL)
 130       {
 131         check (j, ULLONG_MAX - 3, 3, 0)
 132         e = 1;
 133       }
 134     #pragma omp for schedule(guided,1) nowait
 135     for (j = LLONG_MAX - 20000ULL; j <= LLONG_MAX + 10000ULL; j += 10000ULL)
 136       {
 137         check (j, LLONG_MAX - 20000ULL, 4, 0)
 138         check (j, LLONG_MAX - 10000ULL, 4, 1)
 139         check (j, LLONG_MAX, 4, 2)
 140         check (j, LLONG_MAX + 10000ULL, 4, 3)
 141         e = 1;
 142       }
 143     #pragma omp for schedule(guided,1) nowait
 144     for (i = -3LL * INT_MAX - 20000LL; i <= INT_MAX + 10000LL; i += INT_MAX + 200LL)
 145       {
 146         check (i, -3LL * INT_MAX - 20000LL, 5, 0)
 147         check (i, -2LL * INT_MAX - 20000LL + 200LL, 5, 1)
 148         check (i, -INT_MAX - 20000LL + 400LL, 5, 2)
 149         check (i, -20000LL + 600LL, 5, 3)
 150         check (i, INT_MAX - 20000LL + 800LL, 5, 4)
 151         e = 1;
 152       }
 153   }
 154   if (e)
 155     abort ();
 156   test (0, 3);
 157   test (1, 3);
 158   test (2, 1);
 159   test (3, 1);
 160   test (4, 4);
 161   test (5, 5);
 162   return 0;
 163 }
 164
 165 int
 166 test3 (void)
 167 {
 168   int e = 0, idx;
 169
 170 #pragma omp parallel reduction(+:e)
 171   {
 172     long long i;
 173     unsigned long long j;
 174     #pragma omp for schedule(static) nowait
 175     for (i = LLONG_MAX - 30001; i <= LLONG_MAX - 10001; i += 10000)
 176       {
 177         check (i, LLONG_MAX - 30001, 0, 0)
 178         check (i, LLONG_MAX - 20001, 0, 1)
 179         check (i, LLONG_MAX - 10001, 0, 2)
 180         e = 1;
 181       }
 182     #pragma omp for schedule(static) nowait
 183     for (i = -LLONG_MAX + 30000; i >= -LLONG_MAX + 10000; i -= 10000)
 184       {
 185         check (i, -LLONG_MAX + 30000, 1, 0)
 186         check (i, -LLONG_MAX + 20000, 1, 1)
 187         check (i, -LLONG_MAX + 10000, 1, 2)
 188         e = 1;
 189       }
 190     #pragma omp for schedule(static) nowait
 191     for (j = 20; j <= LLONG_MAX - 70; j += LLONG_MAX + 50ULL)
 192       {
 193         check (j, 20, 2, 0)
 194         e = 1;
 195       }
 196     #pragma omp for schedule(static) nowait
 197     for (j = ULLONG_MAX - 3; j >= LLONG_MAX + 70ULL; j -= LLONG_MAX + 50ULL)
 198       {
 199         check (j, ULLONG_MAX - 3, 3, 0)
 200         e = 1;
 201       }
 202     #pragma omp for schedule(static) nowait
 203     for (j = LLONG_MAX - 20000ULL; j <= LLONG_MAX + 10000ULL; j += 10000ULL)
 204       {
 205         check (j, LLONG_MAX - 20000ULL, 4, 0)
 206         check (j, LLONG_MAX - 10000ULL, 4, 1)
 207         check (j, LLONG_MAX, 4, 2)
 208         check (j, LLONG_MAX + 10000ULL, 4, 3)
 209         e = 1;
 210       }
 211     #pragma omp for schedule(static) nowait
 212     for (i = -3LL * INT_MAX - 20000LL; i <= INT_MAX + 10000LL; i += INT_MAX + 200LL)
 213       {
 214         check (i, -3LL * INT_MAX - 20000LL, 5, 0)
 215         check (i, -2LL * INT_MAX - 20000LL + 200LL, 5, 1)
 216         check (i, -INT_MAX - 20000LL + 400LL, 5, 2)
 217         check (i, -20000LL + 600LL, 5, 3)
 218         check (i, INT_MAX - 20000LL + 800LL, 5, 4)
 219         e = 1;
 220       }
 221   }
 222   if (e)
 223     abort ();
 224   test (0, 3);
 225   test (1, 3);
 226   test (2, 1);
 227   test (3, 1);
 228   test (4, 4);
 229   test (5, 5);
 230   return 0;
 231 }
 232
 233 int
 234 test4 (void)
 235 {
 236   int e = 0, idx;
 237
 238 #pragma omp parallel reduction(+:e)
 239   {
 240     long long i;
 241     unsigned long long j;
 242     #pragma omp for schedule(static,1) nowait
 243     for (i = LLONG_MAX - 30001; i <= LLONG_MAX - 10001; i += 10000)
 244       {
 245         check (i, LLONG_MAX - 30001, 0, 0)
 246         check (i, LLONG_MAX - 20001, 0, 1)
 247         check (i, LLONG_MAX - 10001, 0, 2)
 248         e = 1;
 249       }
 250     #pragma omp for schedule(static,1) nowait
 251     for (i = -LLONG_MAX + 30000; i >= -LLONG_MAX + 10000; i -= 10000)
 252       {
 253         check (i, -LLONG_MAX + 30000, 1, 0)
 254         check (i, -LLONG_MAX + 20000, 1, 1)
 255         check (i, -LLONG_MAX + 10000, 1, 2)
 256         e = 1;
 257       }
 258     #pragma omp for schedule(static,1) nowait
 259     for (j = 20; j <= LLONG_MAX - 70; j += LLONG_MAX + 50ULL)
 260       {
 261         check (j, 20, 2, 0)
 262         e = 1;
 263       }
 264     #pragma omp for schedule(static,1) nowait
 265     for (j = ULLONG_MAX - 3; j >= LLONG_MAX + 70ULL; j -= LLONG_MAX + 50ULL)
 266       {
 267         check (j, ULLONG_MAX - 3, 3, 0)
 268         e = 1;
 269       }
 270     #pragma omp for schedule(static,1) nowait
 271     for (j = LLONG_MAX - 20000ULL; j <= LLONG_MAX + 10000ULL; j += 10000ULL)
 272       {
 273         check (j, LLONG_MAX - 20000ULL, 4, 0)
 274         check (j, LLONG_MAX - 10000ULL, 4, 1)
 275         check (j, LLONG_MAX, 4, 2)
 276         check (j, LLONG_MAX + 10000ULL, 4, 3)
 277         e = 1;
 278       }
 279     #pragma omp for schedule(static,1) nowait
 280     for (i = -3LL * INT_MAX - 20000LL; i <= INT_MAX + 10000LL; i += INT_MAX + 200LL)
 281       {
 282         check (i, -3LL * INT_MAX - 20000LL, 5, 0)
 283         check (i, -2LL * INT_MAX - 20000LL + 200LL, 5, 1)
 284         check (i, -INT_MAX - 20000LL + 400LL, 5, 2)
 285         check (i, -20000LL + 600LL, 5, 3)
 286         check (i, INT_MAX - 20000LL + 800LL, 5, 4)
 287         e = 1;
 288       }
 289   }
 290   if (e)
 291     abort ();
 292   test (0, 3);
 293   test (1, 3);
 294   test (2, 1);
 295   test (3, 1);
 296   test (4, 4);
 297   test (5, 5);
 298   return 0;
 299 }
 300
 301 int
 302 test5 (void)
 303 {
 304   int e = 0, idx;
 305
 306 #pragma omp parallel reduction(+:e)
 307   {
 308     long long i;
 309     unsigned long long j;
 310     #pragma omp for schedule(runtime) nowait
 311     for (i = LLONG_MAX - 30001; i <= LLONG_MAX - 10001; i += 10000)
 312       {
 313         check (i, LLONG_MAX - 30001, 0, 0)
 314         check (i, LLONG_MAX - 20001, 0, 1)
 315         check (i, LLONG_MAX - 10001, 0, 2)
 316         e = 1;
 317       }
 318     #pragma omp for schedule(runtime) nowait
 319     for (i = -LLONG_MAX + 30000; i >= -LLONG_MAX + 10000; i -= 10000)
 320       {
 321         check (i, -LLONG_MAX + 30000, 1, 0)
 322         check (i, -LLONG_MAX + 20000, 1, 1)
 323         check (i, -LLONG_MAX + 10000, 1, 2)
 324         e = 1;
 325       }
 326     #pragma omp for schedule(runtime) nowait
 327     for (j = 20; j <= LLONG_MAX - 70; j += LLONG_MAX + 50ULL)
 328       {
 329         check (j, 20, 2, 0)
 330         e = 1;
 331       }
 332     #pragma omp for schedule(runtime) nowait
 333     for (j = ULLONG_MAX - 3; j >= LLONG_MAX + 70ULL; j -= LLONG_MAX + 50ULL)
 334       {
 335         check (j, ULLONG_MAX - 3, 3, 0)
 336         e = 1;
 337       }
 338     #pragma omp for schedule(runtime) nowait
 339     for (j = LLONG_MAX - 20000ULL; j <= LLONG_MAX + 10000ULL; j += 10000ULL)
 340       {
 341         check (j, LLONG_MAX - 20000ULL, 4, 0)
 342         check (j, LLONG_MAX - 10000ULL, 4, 1)
 343         check (j, LLONG_MAX, 4, 2)
 344         check (j, LLONG_MAX + 10000ULL, 4, 3)
 345         e = 1;
 346       }
 347     #pragma omp for schedule(runtime) nowait
 348     for (i = -3LL * INT_MAX - 20000LL; i <= INT_MAX + 10000LL; i += INT_MAX + 200LL)
 349       {
 350         check (i, -3LL * INT_MAX - 20000LL, 5, 0)
 351         check (i, -2LL * INT_MAX - 20000LL + 200LL, 5, 1)
 352         check (i, -INT_MAX - 20000LL + 400LL, 5, 2)
 353         check (i, -20000LL + 600LL, 5, 3)
 354         check (i, INT_MAX - 20000LL + 800LL, 5, 4)
 355         e = 1;
 356       }
 357   }
 358   if (e)
 359     abort ();
 360   test (0, 3);
 361   test (1, 3);
 362   test (2, 1);
 363   test (3, 1);
 364   test (4, 4);
 365   test (5, 5);
 366   return 0;
 367 }
 368
 369 int
 370 main (void)
 371 {
 372   if (2 * sizeof (int) != sizeof (long long))
 373     return 0;
 374   test1 ();
 375   test2 ();
 376   test3 ();
 377   test4 ();
 378   omp_set_schedule (omp_sched_static, 0);
 379   test5 ();
 380   omp_set_schedule (omp_sched_static, 3);
 381   test5 ();
 382   omp_set_schedule (omp_sched_dynamic, 5);
 383   test5 ();
 384   omp_set_schedule (omp_sched_guided, 2);
 385   test5 ();
 386   return 0;
 387 }