gcc-4_9-branch/gcc/testsuite/gcc.dg/vect/vect-peel-3.c

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