gcc/testsuite/gcc.dg/vect/vect-alias-check-11.c

   1 /* { dg-do run } */
   2
   3 #define N 87
   4 #define M 6
   5
   6 typedef signed char sc;
   7 typedef unsigned char uc;
   8 typedef signed short ss;
   9 typedef unsigned short us;
  10 typedef int si;
  11 typedef unsigned int ui;
  12 typedef signed long long sll;
  13 typedef unsigned long long ull;
  14
  15 #define FOR_EACH_TYPE(M) \
  16   M (sc) M (uc) \
  17   M (ss) M (us) \
  18   M (si) M (ui) \
  19   M (sll) M (ull) \
  20   M (float) M (double)
  21
  22 #define TEST_VALUE1(I) ((I) * 5 / 2)
  23 #define TEST_VALUE2(I) ((I) * 11 / 5)
  24
  25 #define ADD_TEST(TYPE)                                  \
  26   void __attribute__((noinline, noclone))               \
  27   test_##TYPE (TYPE *restrict a, TYPE *restrict b,      \
  28                int step)                                \
  29   {                                                     \
  30     for (int i = 0; i < N; ++i)                         \
  31       {                                                 \
  32         TYPE r1 = a[i * step + 0] += 1;                 \
  33         a[i * step + 1] += 2;                           \
  34         a[i * step + 2] += 4;                           \
  35         a[i * step + 3] += 8;                           \
  36         b[i] += r1;                                     \
  37       }                                                 \
  38   }                                                     \
  39                                                         \
  40   void __attribute__((noinline, noclone))               \
  41   ref_##TYPE (TYPE *restrict a, TYPE *restrict b,       \
  42               int step)                                 \
  43   {                                                     \
  44     for (int i = 0; i < N; ++i)                         \
  45       {                                                 \
  46         TYPE r1 = a[i * step + 0] += 1;                 \
  47         a[i * step + 1] += 2;                           \
  48         a[i * step + 2] += 4;                           \
  49         a[i * step + 3] += 8;                           \
  50         b[i] += r1;                                     \
  51         asm volatile ("");                              \
  52       }                                                 \
  53   }
  54
  55 #define DO_TEST(TYPE)                                   \
  56   for (int j = -M; j <= M; ++j)                         \
  57     {                                                   \
  58       TYPE a1[N * M], a2[N * M], b1[N], b2[N];          \
  59       for (int i = 0; i < N * M; ++i)                   \
  60         a1[i] = a2[i] = TEST_VALUE1 (i);                \
  61       for (int i = 0; i < N; ++i)                       \
  62         b1[i] = b2[i] = TEST_VALUE2 (i);                \
  63       int offset = (j < 0 ? N * M - 4 : 0);             \
  64       test_##TYPE (a1 + offset, b1, j);                 \
  65       ref_##TYPE (a2 + offset, b2, j);                  \
  66       if (__builtin_memcmp (a1, a2, sizeof (a1)) != 0)  \
  67         __builtin_abort ();                             \
  68       if (__builtin_memcmp (b1, b2, sizeof (b1)) != 0)  \
  69         __builtin_abort ();                             \
  70     }
  71
  72 FOR_EACH_TYPE (ADD_TEST)
  73
  74 int
  75 main (void)
  76 {
  77   FOR_EACH_TYPE (DO_TEST)
  78   return 0;
  79 }
  80
  81 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* is outside \(-2, 2\)} "vect" { target vect_int } } } */
  82 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* is outside \(-3, 3\)} "vect" { target vect_int } } } */
  83 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* is outside \(-4, 4\)} "vect" { target vect_int } } } */
  84 /* { dg-final { scan-tree-dump {run-time check [^\n]* abs \([^*]*\) >= 4} "vect" { target vect_int } } } */
  85
  86 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 2[)]* is outside \(-4, 4\)} "vect" { target vect_int } } } */
  87 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 2[)]* is outside \(-6, 6\)} "vect" { target vect_int } } } */
  88 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 2[)]* is outside \(-8, 8\)} "vect" { target vect_int } } } */
  89 /* { dg-final { scan-tree-dump {run-time check [^\n]* abs \([^*]* \* 2[)]* >= 8} "vect" { target vect_int } } } */
  90
  91 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 4[)]* is outside \(-8, 8\)} "vect" { target { vect_int || vect_float } } } } */
  92 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 4[)]* is outside \(-12, 12\)} "vect" { target { vect_int || vect_float } } } } */
  93 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 4[)]* is outside \(-16, 16\)} "vect" { target { vect_int || vect_float } } } } */
  94 /* { dg-final { scan-tree-dump {run-time check [^\n]* abs \([^*]* \* 4[)]* >= 16} "vect" { target { vect_int || vect_float } } } } */
  95
  96 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 8[)]* is outside \(-16, 16\)} "vect" { target vect_double } } } */
  97 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 8[)]* is outside \(-24, 24\)} "vect" { target vect_double } } } */
  98 /* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 8[)]* is outside \(-32, 32\)} "vect" { target vect_double } } } */
  99 /* { dg-final { scan-tree-dump {run-time check [^\n]* abs \([^*]* \* 8[)]* >= 32} "vect" { target vect_double } } } */