gcc/testsuite/gcc.dg/vect/vect-95.c

   1 /* { dg-require-effective-target vect_float } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 256
   7
   8 __attribute__ ((noinline))
   9 void bar (float *pd, float *pa, float *pb, float *pc)
  10 {
  11   int i;
  12
  13   /* check results:  */
  14   for (i = 0; i < N; i++)
  15     {
  16       if (pa[i] != (pb[i] * pc[i]))
  17         abort ();
  18       if (pd[i] != 5.0)
  19         abort ();
  20     }
  21
  22   return;
  23 }
  24
  25
  26 __attribute__ ((noinline)) int
  27 main1 (int n, float * __restrict__ pd, float * __restrict__ pa, float * __restrict__ pb, float * __restrict__ pc)
  28 {
  29   int i;
  30
  31   for (i = 0; i < n; i++)
  32     {
  33       pa[i] = pb[i] * pc[i];
  34       pd[i] = 5.0;
  35     }
  36
  37   bar (pd,pa,pb,pc);
  38
  39   return 0;
  40 }
  41
  42 int main (void)
  43 {
  44   int i;
  45   float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  46   float d[N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  47   float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
  48   float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  49
  50   check_vect ();
  51
  52   main1 (N,&d[1],a,b,c);
  53   main1 (N-2,&d[1],a,b,c);
  54
  55   return 0;
  56 }
  57
  58 /* For targets that support unaligned loads we version for the two unaligned
  59    stores and generate misaligned accesses for the loads. For targets that
  60    don't support unaligned loads we version for all four accesses.  */
  61
  62 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail { vect_no_align || vect_element_align} } } }  */
  63 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 2 "vect" { xfail { vect_no_align || vect_element_align } } } } */
  64 /*  { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */
  65 /*  { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 4 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */