old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-widen-mult-s16.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 64
   7
   8 short X[N] __attribute__ ((__aligned__(16)));
   9 short Y[N] __attribute__ ((__aligned__(16)));
  10 int result[N];
  11
  12 /* short->int widening-mult */
  13 int
  14 foo1(int len) {
  15   int i;
  16
  17   for (i=0; i<len; i++) {
  18     result[i] = X[i] * Y[i];
  19   }
  20 }
  21
  22 int main (void)
  23 {
  24   int i;
  25
  26   check_vect ();
  27
  28   for (i=0; i<N; i++) {
  29     X[i] = i;
  30     Y[i] = 64-i;
  31   }
  32
  33   foo1 (N);
  34
  35   for (i=0; i<N; i++) {
  36     if (result[i] != X[i] * Y[i])
  37       abort ();
  38   }
  39
  40   return 0;
  41 }
  42
  43 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target powerpc*-*-* } } } */
  44 /* { dg-final { cleanup-tree-dump "vect" } } */
  45