old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-95a.c

   1 /* { dg-do compile { target powerpc*-*-* } } */
   2 /* { dg-options "-O2 -Os -ftree-vectorize -ftree-vectorizer-verbose=4 -fdump-tree-vect-stats -maltivec" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 256
   8
   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 int
  27 main1 (int n, float * __restrict__ pd, float * __restrict__ pa,
  28        float * __restrict__ pb, float * __restrict__ pc)
  29 {
  30   int i;
  31
  32   for (i = 0; i < n; i++)
  33     {
  34       pa[i] = pb[i] * pc[i];
  35       pd[i] = 5.0;
  36     }
  37
  38   bar (pd,pa,pb,pc);
  39
  40   return 0;
  41 }
  42
  43 int main (void)
  44 {
  45   int i;
  46   float a[N] __attribute__ ((__aligned__(16)));
  47   float d[N+1] __attribute__ ((__aligned__(16)));
  48   float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
  49   float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  50
  51   check_vect ();
  52
  53   main1 (N,&d[1],a,b,c);
  54   main1 (N-2,&d[1],a,b,c);
  55
  56   return 0;
  57 }
  58
  59 /* { dg-final { scan-tree-dump-times "vectorized 0 loops" 2 "vect" } } */
  60 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  61 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 0 "vect" } } */
  62 /* { dg-final { cleanup-tree-dump "vect" } } */
  63