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

   1 /* Disabling epilogues until we find a better way to deal with scans.  */
   2 /* { dg-additional-options "--param vect-epilogues-nomask=0 -fdump-tree-optimized-details-blocks" } */
   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 > 256
  10 #define N (VECTOR_BITS * 2 / 32)
  11 #else
  12 #define N 16
  13 #endif
  14
  15 struct tmp
  16 {
  17      int x;
  18      int ia[N];
  19 };
  20
  21 __attribute__ ((noinline))
  22 int main1 (int off)
  23 {
  24   struct tmp sb[N];
  25   struct tmp *pp = &sb[off];
  26   int i, ib[N];
  27
  28   for (i = 0; i < N; i++)
  29       pp->ia[i] = ib[i];
  30
  31   /* check results: */
  32 #pragma GCC novector
  33   for (i = 0; i < N; i++)
  34     {
  35        if (pp->ia[i] != ib[i])
  36          abort();
  37     }
  38
  39   return 0;
  40 }
  41
  42 int main (void)
  43 {
  44   check_vect ();
  45
  46   return main1 (8);
  47 }
  48
  49 /* The store is unaligned, the load is aligned. For targets that support unaligned
  50    loads, peel to align the store and generate an unaligned access for the load.
  51    For targets that don't support unaligned loads, version for the store.  */
  52
  53 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  54 /* { 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 } } } } */
  55 /* { 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 } } } } */
  56 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail { { vect_no_align } || { { ! vector_alignment_reachable} || vect_element_align } } } } } */
  57 /* { 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} } } } } } */
  58 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */