gcc/testsuite/gcc.dg/vect/vect-96.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-add-options double_vectors } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #if VECTOR_BITS > 256
   8 #define N (VECTOR_BITS * 2 / 32)
   9 #else
  10 #define N 16
  11 #endif
  12
  13 struct tmp
  14 {
  15      int x;
  16      int ia[N];
  17 };
  18
  19 __attribute__ ((noinline))
  20 int main1 (int off)
  21 {
  22   struct tmp sb[N];
  23   struct tmp *pp = &sb[off];
  24   int i, ib[N];
  25
  26   for (i = 0; i < N; i++)
  27       pp->ia[i] = ib[i];
  28
  29   /* check results: */
  30   for (i = 0; i < N; i++)
  31     {
  32        if (pp->ia[i] != ib[i])
  33          abort();
  34     }
  35
  36   return 0;
  37 }
  38
  39 int main (void)
  40 {
  41   check_vect ();
  42
  43   return main1 (8);
  44 }
  45
  46 /* The store is unaligned, the load is aligned. For targets that support unaligned
  47    loads, peel to align the store and generate an unaligned access for the load.
  48    For targets that don't support unaligned loads, version for the store.  */
  49
  50 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  51 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { target { { {! vect_no_align} && vector_alignment_reachable } && { ! vect_align_stack_vars } } xfail { ! vect_unaligned_possible } } } } */
  52 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { target { { {! vect_no_align} && vector_alignment_reachable } && vect_align_stack_vars } xfail { ! vect_unaligned_possible } } } } */
  53 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail { { vect_no_align } || { { ! vector_alignment_reachable} || vect_element_align } } } } } */
  54 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { { vect_no_align && { ! vect_hw_misalign } } || { {! vector_alignment_reachable} && {! vect_element_align} } } } } } */