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

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-add-options bind_pic_locally } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 128
   8 #define RES 21640
   9
  10 int ib[N+10];
  11 int ia[N+10];
  12 int ic[N+10];
  13
  14 __attribute__ ((noinline))
  15 int main1 ()
  16 {
  17   int i, suma = 0, sumb = 0, sumc = 0;
  18
  19   /* ib and ic have same misalignment, we peel to align them.  */
  20   for (i = 0; i <= N; i++)
  21     {
  22       suma += ia[i];
  23       sumb += ib[i+5];
  24       sumc += ic[i+1];
  25     }
  26
  27   /* check results:  */
  28   if (suma + sumb + sumc != RES)
  29     abort ();
  30
  31   return 0;
  32 }
  33
  34 int main (void)
  35 {
  36   int i;
  37
  38   check_vect ();
  39
  40   for (i = 0; i < N+10; i++)
  41     {
  42       asm volatile ("" : "+r" (i));
  43       ib[i] = i;
  44       ic[i] = i+2;
  45       ia[i] = i/2;
  46     }
  47
  48   return main1 ();
  49 }
  50
  51 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
  52 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect"  { xfail { { vect_no_align && { ! vect_hw_misalign } } || {vect_sizes_32B_16B } } } } } */
  53 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail { { vect_no_align && { ! vect_hw_misalign } } || {vect_sizes_32B_16B } } } } } */