gcc/testsuite/gcc.dg/vect/vect-multitypes-3.c

   1 /* Disabling epilogues until we find a better way to deal with scans.  */
   2 /* { dg-additional-options "--param vect-epilogues-nomask=0" } */
   3 /* { dg-require-effective-target vect_int } */
   4 /* { dg-add-options double_vectors } */
   5
   6 #include <stdarg.h>
   7 #include "tree-vect.h"
   8
   9 #if VECTOR_BITS > 128
  10 #define N (VECTOR_BITS * 2 / 8)
  11 #else
  12 #define N 32
  13 #endif
  14
  15 int ib[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) =
  16         {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  17 short sb[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) =
  18         {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  19 char cb[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) =
  20         {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  21
  22 __attribute__ ((noinline))
  23 int main1 (int n, int * __restrict__ pib,
  24            short * __restrict__ psb,
  25            char * __restrict__ pcb)
  26 {
  27   int i;
  28   int ia[N];
  29   short sa[N];
  30   char ca[N];
  31
  32   /* Multiple types with different sizes, used in independent
  33      computations. Vectorizable. The loads are misaligned.  */
  34   for (i = 0; i < n; i++)
  35     {
  36       ia[i] = pib[i];
  37       sa[i] = psb[i];
  38       ca[i] = pcb[i];
  39     }
  40
  41   /* check results:  */
  42 #pragma GCC novector
  43   for (i = 0; i < n; i++)
  44     {
  45       if (ia[i] != pib[i]
  46           || sa[i] != psb[i]
  47           || ca[i] != pcb[i])
  48         abort ();
  49     }
  50
  51   return 0;
  52 }
  53
  54 int main (void)
  55 {
  56   check_vect ();
  57
  58   main1 (N, ib, sb, cb);
  59   main1 (N-3, ib, sb, &cb[2]);
  60   return 0;
  61 }
  62
  63 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  64 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 3 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */
  65 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 3 "vect" { xfail { ! { vect_unaligned_possible && vect_align_stack_vars } } } } } */
  66